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SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 10-K

FOR ANNUAL AND TRANSITION REPORTS

PURSUANT TO SECTIONS 13 OR 15 (d) OF THE

SECURITIES EXCHANGE ACT OF 1934

(Mark One)

For the fiscal year ended September 30, 2004

or

For the transition period from                     to                    

Commission file number 0-18603

INTEGRAL SYSTEMS, INC.

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code: (301) 731-4233

Securities registered pursuant to Section 12(b) of the Act:

Securities registered pursuant to Section 12(g) of the Act:

Common Stock, par value $.01 per share

(Title of class)

(Title of class)

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

Yes x No ¨

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K ¨

Indicate by check mark whether the registrant is an accelerated filer (as defined in Exchange Act Rule 12b-2) Yes x No ¨

As of the last business day of the Registrant’s most recently completed second fiscal quarter, the aggregate market value of the Common Stock of the Registrant (based upon the average bid and asked prices of the Common Stock as reported by the market makers) held by non-affiliates of the Registrant was $175,942,545.

As of November 11, 2004, 9,977,844 shares of the Common Stock of the Registrant were outstanding.

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INDEX

PART I

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INDEX (CONTINUED)

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PART I

Company Overview

Integral Systems, Inc. (the “Company”) builds satellite ground systems and equipment for command and control, integration and test, data processing, and simulation. Since its inception in 1982, the Company has provided ground systems for over 190 different satellite missions for communications, science, meteorology, and earth resource applications. The Company has an established domestic and international customer base that includes government and commercial satellite operators, spacecraft and payload manufacturers and aerospace systems integrators.

The Company has developed innovative software products that reduce the cost and minimize the development risk associated with traditional, custom-built systems. The Company believes that it was the first to offer a comprehensive commercial-off-the-shelf (“COTS”) software product line for command and control. As a systems integrator, the Company leverages these products to provide turnkey satellite control facilities that can operate multiple satellites from any manufacturer. These systems offer significant cost savings for customers that have traditionally purchased a separate custom control center for each of their satellites.

Through its wholly owned subsidiaries, SAT Corporation (“SAT”) and Newpoint Technologies Inc. (“Newpoint”), the Company offers complementary ground system components and systems. This includes turnkey systems, hardware and software for satellite and terrestrial communications signal monitoring, network and ground equipment monitoring and control and satellite data processing. See Footnote 2 of the Notes to the Consolidated Financial Statements included elsewhere herein for more information regarding the acquisition of Newpoint.

In March 2001, the Company formed a wholly owned subsidiary, ISI Europe, with headquarters in Toulouse, France. ISI Europe serves as the focal point for the support of all of Integral’s European business.

Through its wholly owned subsidiary, Real Time Logic, Inc. (“RT Logic”), the Company designs and builds satellite communications equipment and systems, principally for military applications. This equipment is used in satellite tracking stations, control centers, spacecraft factories and range facilities. See Footnote 2 of the Notes to the Consolidated Financial Statements included elsewhere herein for more information regarding the acquisition of RT Logic.

In July 2003, the Company acquired the intellectual property rights, inventory, and certain other assets of the former Jackson & Tull Satellite Ground Systems division. The acquisition was an extension of the satellite ground systems business segment and enabled the Company to be a “turnkey” provider of full motion antennas and radio frequency (“RF”) systems used for tracking low earth orbiting satellites and launch vehicles as well as aeronautical telemetry range operations. Effective November 1, 2004, the Company disposed of the intellectual property rights, inventory and certain other assets of its Antenna Systems Division. See Footnote 2 of the Notes to the Consolidated Financial Statements included elsewhere herein for more information.

Integral Systems, Inc. is a Maryland corporation, ISO 9000 certified, and was incorporated in 1982.

Industry Background

The space industry can be broken down into the following industry sectors: infrastructure, surveillance/data collection, communications, emerging applications and support services. Both government and commercial investments fund each of these sectors. Space infrastructure encompasses the development, manufacture, and procurement of hardware and related systems for both space assets (i.e., satellites and payloads) and ground assets (i.e., satellite ground systems). The Company’s business is focused in the ground system component of the infrastructure sector. The U.S. Government makes up the majority of the surveillance/data collection sector of the

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space industry, making extensive use of satellites to support military operations. The communications sector of the space industry includes revenue generated by satellite systems for commercial telecommunications services and government and military communications. Satellite technology has become critical to supporting many aspects of telecommunications infrastructure, including long-distance telephone, personal communications systems, and private networks. The emerging applications sector of the space industry includes space technologies utilized for new applications such as global positioning systems and remote sensing. Support services for the space industry include technical support, engineering, finance and consulting, which facilitate growth in space-related markets.

The Company estimates that the current worldwide command and control market represents approximately $5 billion in annual revenues. However, the Company also believes that the increasing acceptance of COTS products will lead to substantial price reductions and a subsequent decrease in the size of this market. The Company believes that its COTS software products leave it well positioned to capitalize on this market trend, resulting in an increase in both its revenues and market share.

The Company Solution

The Company offers satellite ground systems products, systems, and services that provide low-cost, efficient and flexible satellite operations systems. The principal characteristics of the Company’s approach are as follows:

Advanced Architecture. Unlike the traditional host-based approach, the Company’s ground systems are fully distributed, consisting of a set of workstations and front-end equipment all communicating via a local area network (“LAN”) backbone. Any software function can be performed on any workstation, eliminating the host computer bottleneck and allowing the processing and network loading to be fine-tuned by reallocation of logical processes to physical hardware. This approach also provides more reliable operations by eliminating single points of failure. The Company’s ground systems equipment is designed to be programmable, allowing a core set of hardware devices to be easily tailored to specific customer functions.

Depth of Functionality. The Company’s core product line, EPOCH IPS (Integrated Product Suite), supports satellite operations through a suite of integrated software products. This includes products for real-time satellite control and monitoring, off-line data trending, orbit analysis and database configuration. The Company’s real-time products perform daily and routine satellite operations, including commanding, telemetry processing and fault detection and correction. The trending package supports sustaining engineering functions, including trending and statistical analysis of data archived by the real-time system. The orbit analysis package performs orbit determination and prediction functions to monitor and control the position of a satellite in space. The database package tailors the performance of the other three packages, which are general in scope, to the specific requirements of each satellite mission. The database package defines the telemetry and command characteristics and the desired orbital elements and tolerances for each satellite.

Mixed Fleet Operations. The Company’s products are compatible with most of the world’s major manufacturer’s satellite models. This enables the company to provide a single product solution to operators who own fleets of mixed satellite models. Where previously, these operators would have several different types of ground systems for their fleet, a single, expandable system from the Company will operate the entire fleet. This reduces the end user’s costs for procurement, training, support and spare parts. It also reduces the end user’s incremental costs to add a new satellite to the fleet and provides a safer operations environment due to reduced complexity associated with a single solution.

Flexibility/Adaptability. A critical element to achieving initial operator acceptance of a new system and facilitating rapid implementation is the ability of the Company’s software to serve the needs of particular satellite systems. All of the Company’s software is database driven, allowing it to support satellite design changes or different series of satellites, without modifying the underlying software. Similarly, the software also supports a wide range of COTS antenna, RF and baseband equipment (including the Company’s own products), allowing the total system to be delivered in the most efficient configuration for each mission. The Company’s ground systems equipment products consolidate a number of functions and are both scalable and programmable to support a wide

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range of requirements. Finally, the software is supported on the most widely used computer platforms, including Sun Solaris, IBM AIX, and Windows 2000/XP.

Superior Price/Performance. The Company seeks to achieve superior price/performance by providing comprehensive solutions within the budgetary needs of its customers. The Company believes that its COTS software products provide advanced yet cost-effective solutions for satellite ground systems and operators. These COTS software products eliminate the need for expensive development services, thereby substantially reducing the overall cost of a ground system. The Company’s database-driven software allows satellites to be added over time, which permits the initial system acquisition costs to be amortized over years of operations. The Company believes its products exceed industry expectations in functionality, technical sophistication and ease of use.

Company Strategy

The Company is currently a leading provider of satellite command and control systems, providing systems for a wide variety of satellites. The Company intends to extend its leadership and to expand its market share in world command and control solutions for users of all satellite types. Primary elements of the Company’s strategy include:

Technological Leadership. The Company intends to continue to commit substantial resources to further develop the next generation of its off-the-shelf software and programmable hardware products upon which all its delivered systems are built. In addition, because the satellite infrastructure industry is increasingly requiring compliance standards, the Company intends to adhere to existing and future industry standards and participate in the further development of such standards.

Strategic Alliances and Partnerships. In addition to its own development and marketing organization, the Company has and will continue to establish partnerships with select third parties, primarily satellite and hardware manufacturers, to assist the Company in successfully integrating its software products, implementing total solution command and control systems and developing customer relationships.

Integration with Complementary Products. The Company believes that its ability to offer command and control software products that can integrate seamlessly with all satellite types and ground system components is a key competitive advantage. The Company also intends to integrate its software products with complementary products, including visualization tools, scheduling engines and decision support aids in order to maintain its competitive advantage and provide maximum flexibility for its customers.

Sales, Support, Service and Marketing Organizations. The Company currently sells and supports its software and systems through direct sales to satellite operators and systems integrators in North America, Europe and Asia. From its headquarters in Lanham, MD, the company performs worldwide marketing, sales and services, including its direct marketing efforts with U.S. Government organizations to capitalize on the growing acceptance of COTS solutions in the government sphere. The Company’s Colorado Springs office serves as the focal point for the Company’s support of its services, products and operations provided to the U.S. Air Force. Through its wholly owned European subsidiary, Integral Systems Europe S.A.S. (“ISI Europe”) headquartered in Toulouse, France, the Company provides sales, marketing, support and engineering services to the European market.

Professional Services Capabilities. The Company believes that providing comprehensive services and a high level of customer support is critical to its ability to maintain its leading position in command and control systems and to expand into new markets. Therefore, the Company intends to expand its professional services organization in areas such as hardware testing, pre- and post-sale software support, quality assurance, project installation management and training. The Company is ISO 9000 certified to ensure the consistent delivery of high quality products and services.

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Products

Most of the Company’s sales involve a combination of COTS software and hardware products together with development services for mission-specific requirements and system integration as summarized below. The Company believes that it is uniquely positioned in the industry to offer full-function ground systems, utilizing products from its RT Logic, Newpoint and SAT subsidiaries.

Command and Control Software.

EPOCH IPS, the Company’s COTS software products solution for satellite command and control is designed to operate a variety of satellites with a minimum of personnel. EPOCH IPS’s success has placed the Company at the forefront of replacing antiquated satellite control centers with smaller systems that can operate multiple satellites produced by any manufacturer. EPOCH IPS’s open architecture, in combination with a graphical user interface and automated monitoring and control features, allows operators to monitor and control both their satellites and ground systems.

EPOCH IPS features a modern, distributed architecture consisting of a series of servers and user workstations interconnected via an Ethernet LAN. This approach provides better performance than traditional mini-computer based ground systems at a lower cost. The EPOCH Integrated Product Suite includes the following products:

Signal Monitoring.

The Company’s wholly owned subsidiary, SAT, offers a range of software products and turnkey systems for communications signal monitoring, including MONICS, a family of software products for stand-alone and distributed satellite transponder monitoring, and SIGMON, a turnkey system for detecting terrestrial communications interference.

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Equipment Monitoring and Control.

The Company’s wholly owned subsidiary, Newpoint, offers an integrated suite of products targeted at commercial users, including communication satellite operators, communication satellite users, and general-purpose telecommunications companies. Newpoint has two flagship products: (1) COMPASS, which provides distributed monitoring and control of networked communications systems, and (2) MERCURY, a rack-mountable smart box that provides monitoring and control of local network nodes and their associated ground equipment. Newpoint also offers a number of add-ons to their core products, including Stratus, which provides carrier management for satellite transponder operations, and Eclipse, a tool for setting up and reconfiguring the communications traffic on satellite transponders.

Telemetry, Command and Range Processing.

The Company’s wholly owned subsidiary, RT Logic, offers a comprehensive set of products for satellite ground systems. The product line incorporates programmable hardware modules and common software architecture. The suite of TELEMETRIX products support telemetry processing, commanding, ranging, and remote site interfaces for a variety of applications, including tracking stations, control centers, spacecraft and payload integration, and launch range operations. The TELEMETRIX 501, 508, and 500GT products are used in satellite control centers to process the satellite telemetry and command links. The TELEMETRIX Frequency Conversion System and TELEMETRIX 70/70 perform the RF, intermediate frequency (“IF”), and baseband processing at ground antenna sites.

Image Data Reception, Processing and Distribution.

SKYLIGHT, the Company’s first turnkey product for image data processing, provides automatic, un-manned acquisition, processing, and distribution of satellite imagery to the scientific, meteorological and military communities. The SKYLIGHT bundle of hardware and software automatically tracks satellites of interest, captures their images, performs first order data processing and distributes the processed images over the internet.

The Company also offers a military version of the SKYLIGHT system, consisting of a set of standard SKYLIGHT terminals interlinked to a central command via a commercial communication satellite network. This version allows military planners to view and process weather and related imagery data in near-real time across an entire theater of operations.

Development Services and Systems Integration

The Company provides services to support mission-specific requirements for both government and commercial customers. Most of the Company’s ground system contracts have a service component. Depending on the application, the services may include development of software applications to interface to and augment the COTS software products, integration of third-party hardware and software, and/or custom software development. The Company also provides post-delivery warranty and maintenance service for most of its turnkey systems. The Company believes that its expertise and experience in satellite systems and operations, computer software and hardware, engineering/mathematical analysis and end-user applications allow it to provide ground systems that exceed traditional expectations on system performance, cost, and implementation schedule. The Company’s experience, together with its innovative COTS software products and software tools, reduce the risks and lead time associated with ground systems development.

Customers

In general, there are four major applications for satellites: communications, military applications, remote sensing and scientific research. The Company has customers in each of these areas. The Company believes that the combination of its proven COTS software products and its strength as a systems integrator has positioned it to serve as an end-to-end provider of total solutions for all of these applications.

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Commercial Communications Satellites.

The Company provides satellite command and control products for a variety of communications satellites. One of the principal advantages that the Company’s products offer in the commercial sector is the ability to operate fleets of satellites from multiple vendors. This capability allows operators to reduce costs by consolidating their control centers and use a single software package to operate their satellite fleet. The Company also provides its payload monitoring systems and software to satellite operators for monitoring quality of service and identification of interfering signals. The Company’s ground equipment monitor and control software is also used by satellite operators to control the ground equipment in the control center and remote equipment sites.

The Company’s products are currently flying communications satellites from most of the major satellite manufacturers, including Boeing, Lockheed Martin, Space Systems Loral, Orbital Sciences, EADS, and Alcatel. The Company’s customers include NewSkies, Echostar, GE Americom, Loral Skynet, Shin Satellite, Binariang Satellite Systems, Asiasat, SatMex, Orbital Sciences, PanAmSat, Cable & Wireless Optus, and ChinaSat. All of these operators have purchased the Company’s products to operate their fleets of geosynchronous Earth orbit (“GEO”) communications satellites.

The Company is also the leading provider of command and control products for U.S. military communications satellites.

Military Applications.

The Company provides ground systems software and equipment for multiple U.S. Department of Defense (“DoD”) programs. The Company’s products are used in a majority of the Air Force and Navy satellite control systems. The Company’s customers include multiple aerospace prime contractors such as Lockheed-Martin, Boeing, Honeywell, Northrop Grumman and Raytheon. The Company also sells directly to the DoD. The U.S. Air Force is the company’s largest single customer, providing 55% of the Company’s 2004 consolidated revenues. The Company is the prime contractor for the CCS-C (Command and Control Center – Consolidated) Contract to upgrade the Air Force’s satellite command and control system for the DSCS and Milstar satellites. The Company is also replacing the signal processing and antenna control systems at all of the Air Force Satellite Control Network (AFSCN) sites.

The Company’s products support the processing of telemetry, commanding, and ranging data, performing generation and reception of the RF links to and from the on-orbit satellites. In addition, the Company’s products are used to receive telemetry data from the space lift ranges during launch of military satellites and to test satellites at the place of manufacture.

Remote Sensing and Meteorology.

The Company builds command and control systems as well as payload and image data processing systems for meteorological satellites. Since its inception, the Company has provided ground systems for the U.S. National Oceanic and Atmospheric Administration (“NOAA”), including both their Geostationary Operational Environmental Satellite (“GOES”) Program and the Television Infrared Observational Satellite (“TIROS”) programs. The Company’s systems support mission operations, instrument data processing, simulation and flight software validation. The Company also built the complete command and control system for the U.S. Air Force Defense Meteorological Satellite Program (“DMSP”), whose operations were recently transitioned to civilian control under NOAA’s aegis. Since 1982, the Company has also been under contract to provide the DMSP program with satellite simulators used for training, ground system checkout and flight software analysis.

High-performance ground systems are required to support Earth resource satellites that provide military and civilian customers with accurate image data. The Company has provided such command and control subsystems to Space Imaging/EOSAT and other operators.

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Scientific Research.

The Company has supported a variety of diverse and complex scientific missions. The Company has supported more than a dozen missions for the National Aeronautics and Space Administration (“NASA”), including the Small Explorer (“SMEX”) missions, International Solar-Terrestrial Physics (“ISTP”) missions, X-ray Timing Explorer (“XTE”) and Tropical Rainfall Measuring Mission (“TRMM”). Projects range from the development of distributed command and control systems to validation of complex embedded flight software.

The Company was selected by the Johns Hopkins University Applied Physics Laboratory (“APL”) to support the first NASA Discovery Mission, the Near Earth Asteroid Rendezvous Program (“NEAR”). NEAR was the first in a series of low-cost, small-planet exploratory missions designed to gather data about asteroids in the solar system. APL subsequently chose the Company to provide its command and control products for the Timed, Contour, Stereo and Messenger science satellites. The Company’s EPOCH IPS products form the core of the mission’s command and control ground system and also support the spacecraft integration and test (“I&T”).

The National Space Program Office (“NSPO”) for the Republic of China selected the Company to provide the complete multi-mission command and control system for their ROCSAT series of satellites. The Company also supports small satellite missions in the United States such as Orbital Sciences Corporation’s SeaStar and Microlab programs.

Marketing

The Company relies upon senior corporate management, project managers and senior technical staff for its marketing program, including the development and execution of marketing plans, proposal presentations, and the performance of related tasks. These individuals collect information concerning requirements of current and potential customers in the course of contract performance and formal and informal briefings, from published literature and through participation in professional and industry organizations. Senior management evaluates this information, identifies potential business opportunities and coordinates proposal efforts. The primary source of business in the Company’s existing markets is by referral from existing customers. Additionally, the Company advertises periodically in Space News and other industry publications as well as delivering papers and exhibiting at industry conferences.

The Company seeks business believed to be of long-term benefit based on considerations such as technical sophistication, favorable market positioning and potential product spin-offs. One of the Company’s primary marketing strategies is to anticipate and understand the changing needs of its customers and then to be prepared to meet those needs as they arise in new programs or in new program functions. This approach to marketing is mirrored in the Company’s products that are highly adaptable to growth and change in the requirements of each user.

U.S. Government Contracts

Revenues from U.S. Government contracts are derived from a combination of contracts with the U.S. Government and subcontracts with other companies that have prime contracts with the U.S. Government. For fiscal years 2004, 2003 and 2002 approximately 76%, 76% and 60%, respectively, of the Company’s revenues were derived from contracts or subcontracts funded by the U.S. Government.

The U.S. Air Force represented 55%, 50% and 22% of revenues, respectively, for fiscal years 2004, 2003 and 2002. The Company expects that at least 65% of its revenue for fiscal year 2005 will be derived from Air Force contracts and subcontracts. The loss of any one of these Air Force contracts could significantly affect the Company’s performance. Similarly, the expiration, or termination for convenience, of any major contract could significantly affect the Company’s performance if not renewed or replaced by contracts of similar value. It is estimated that the single largest Air Force contract will represent at least 20% of the Company’s fiscal year 2005 revenue. Under this contract, the Company is leading a team of subcontractors to produce a modern, consolidated command and control infrastructure for the military’s fleet of communication satellites, including Milstar, DSCS III, Advanced EHF and Wideband Gapfiller.

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NOAA, another U.S. Government agency, represented 15%, 19% and 31% of revenues, respectively, for fiscal years 2004, 2003 and 2002. The Company expects that approximately 9% of its revenue for fiscal year 2005 will be derived from NOAA contracts. The loss of any one of these NOAA contracts could significantly affect the Company’s performance. See Footnote Number 3 of the notes to the Consolidated Financial Statements included elsewhere herein for information pertaining to the NOAA contracts.

U.S. Government contracts are awarded by formal advertising or procurement by negotiation. Negotiated procurements may, but do not necessarily, involve the solicitation of competitive proposals. If competitive proposals are solicited, the U.S. Government selects the proposal most advantageous to it and then conducts negotiations with the selected bidder.

Many of the U.S. Government programs in which the Company participates as a contractor or subcontractor extend for several years but are funded only on an annual basis. Accordingly, the Company’s contracts and subcontracts are subject to termination, reduction, or modification in the event of changes in the government’s requirements or budgetary constraints. Additionally, when the Company participates in a project as a subcontractor, it is subject to the risk that the prime contractor may fail or be unable to perform the prime contract.

All of the Company’s U.S. Government contracts and subcontracts are also subject to termination for “convenience,” which means termination without cause. Should a contract be so terminated, the Company would be reimbursed for allowable costs to the date of termination and would be paid a proportionate amount of the stipulated profits or fees attributable to the work actually performed.

The Company’s books and records are subject to audit by the Defense Contract Audit Agency (“DCAA”). Such audits can result in adjustments to contract costs and fees. Although the Company thus far has not been required to make any material audit adjustments, the possibility that such adjustments will be required always exists. Management is of the opinion that any such audit adjustments would not have a material adverse effect on the financial position or results of operations of the Company. The Company has been audited by the DCAA through its fiscal year ended September 30, 2002, and RT Logic has been audited by the DCAA through March 31, 2000. Newpoint, SAT, and ISI Europe are not currently subject to audits by the DCAA.

The Company’s contracts and subcontracts with U.S. Government agencies are subject to competition and awarded on the basis of technical merit, personnel qualifications, experience and price. The Company’s business, financial condition, and results of operations could be materially affected by changes in procurement policies, a reduction in funds available for the services provided by it and other risks generally associated with federal government contracts. New government contract awards also are subject to protest by competitors at the time of award that can result in the re-opening of the competition or evaluation process, or the award of a contract to a competitor. The Company considers such bid protests to be a customary element in the process of procuring government contracts.

In addition to the right to terminate, U.S. Government contracts are conditioned upon the continuing availability of Congressional appropriations and are typically subject to modification or termination in the event of changes in funding. Congress usually appropriates funds on a fiscal year basis even though contract performance may take several years. Consequently, at the outset of a major program, the contract is usually incrementally funded, and additional funds are normally committed to the contract by the procuring agency as Congress makes appropriations for future fiscal years. In addition, contractors often experience revenue uncertainties during the first quarter of the U.S. Government’s fiscal year, which begins October 1, until differences between budget requests and appropriations are resolved. Historically, Congress has funded all current years of the multi-year major program contracts for which the Company has served as prime contractor or a subcontractor, although there can be no assurance that this will be the case in the future.

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Non-U.S. Government Contracts

The Company also has contracts with commercial and international organizations. For fiscal years 2004, 2003 and 2002 approximately 24%, 24% and 40%, respectively, of the Company’s revenues were derived from non-U.S. Government contracts. These contracts are typically with commercial satellite operators, satellite manufacturers, aerospace systems integrators and foreign governments.

Some of the Company’s non-U.S. Government contracts are with international organizations. For fiscal years 2004, 2003, and 2002 approximately 13%, 13% and 21%, respectively, of the Company’s revenues were derived from international organizations. Revenues from foreign sources are discussed in Footnote Number 1 of the Notes to the Financial Statements included elsewhere herein. Operations in numerous countries outside the United States carry substantial managerial, operational, legal, and political uncertainties. These operations are subject to changes in government regulations and telecommunications standards, tariffs or taxes, and other trade barriers. In addition, the Company’s agreements relating to foreign operations may be enforceable only in foreign jurisdictions so that it may be difficult for the Company to enforce its rights.

The Company currently has three contracts that are subject to currency fluctuations in foreign markets. The value of these contracts is not material. However, to mitigate currency fluctuation, the Company periodically uses foreign currency exchange contracts. (See Footnote Number 15 of the Notes to the Consolidated Financial Statements included elsewhere herein for more information.) The Company may enter into additional contracts that are subject to currency fluctuation. However, there can be no assurance that the Company will enter into foreign currency exchange contracts to mitigate currency fluctuation in the future.

In addition, various agencies and departments of the U.S. Government regulate the Company’s ability to pursue business opportunities outside the United States. Exports of space-related products, services, and technical information require licenses granted by the U.S. Government. For the Company’s products, services or technical information requiring such a license, the Company does not currently have blanket authorization for their export and cannot assure that it will be able to obtain the necessary licenses or approvals on a per transaction basis.

Most of the Company’s non-U.S. Government contracts are awarded competitively and are performed on a fixed price basis. Typically, these contracts are for turnkey systems that are delivered by the Company in six to eighteen months. Payment is most often based on delivery milestones established in the Company’s contract. In addition, the contracts may include a system warranty period that lasts one to two years. The Company also offers extended support for the system on a fixed-price or T&M basis.

For certain of the Company’s non-U.S. Government contracts, the Company often has terms in its contracts under which the customer can enforce performance of the Company or seek damages in case the Company does not perform as agreed to in the contract. Contracts may require the Company to post a performance bond, establish an irrevocable letter of credit, or agree to pay liquidated damages in the event of late delivery. In addition, although a significant portion of the Company’s revenues are generated from the sale of its services and products in commercial markets, the Company cannot assure that it will continue to compete successfully in these markets. Many of the Company’s commercial contracts are for a fixed price. This subjects the Company to substantial risks relating to unexpected cost increases and other factors outside of its control. In addition, the Company may fail to anticipate technical problems, estimate costs accurately or control costs during performance of a fixed-price contract.

Competition

Commercial Contracts: The Company believes it is one of four companies in the United States that comprise serious competition for the development of commercial satellite ground systems. The Company considers itself to be the leader in this field, since its systems currently are installed and operational in almost every commercial satellite operator’s facility in the world. The Company expects its dominant position to continue since new satellites procured by these operators can be controlled by its systems and software as well. The Company’s

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satellite command and control products are compatible with all of the world’s production satellite types providing a competitive edge.

Military Contracts: For military programs, the Company competes with numerous companies for satellite command and control contracts, including Lockheed Martin Corporation, Raytheon Company, L3 and Northrop Grumman. Many of these competitors are significantly larger and have greater financial resources than the Company. In addition, some of these competitors are divisions or subsidiaries of large, diversified companies that have access to the financial resources of their parent companies. Some of our competitors are also current or potential customers, teammates, or subcontractors. In addition, several smaller companies have specialized capabilities in command and control image processing. There are also a number of smaller companies which compete with our subsidiaries in the areas of signal monitoring, network monitoring, and telemetry processing.

The Company’s products also face competition from certain government off-the-shelf, or “GOTS,” products for satellite command and control. In its other business areas, ground equipment and systems integration, the Company competes against systems integrators and product manufacturers.

The Company believes that the principal competitive factors in the businesses in which it operates are technical understanding, management capability, past contract performance, personnel qualifications and price.

The Company principally obtains contracts and subcontracts through competitive procurements offered by the U.S. Government or commercial enterprises. Because of its size, the Company often joins with a larger company in pursuing major procurements. It is not unusual for the Company to compete with a company for a contract while simultaneously joining with the same company in pursuit of another contract.

It is not possible to predict how the Company’s competitive position may be affected by changing economic or competitive conditions, customer requirements, or technological developments.

Proprietary Rights

The Company regards its products as proprietary trade secrets and confidential information. The Company has made the strategic decision after discussion with intellectual property counsel not to seek patent protection for its software, hardware, or systems. None of the Company’s software, hardware or systems are patented. The Company relies on a combination of common law copyright and trade secret laws, third-party nondisclosure agreements and other industry standard methods for protecting ownership of its proprietary software, hardware, and systems. The Company generally registers its trademarks and the copyrights with respect to new products and new versions of its software as they are developed. There can be no assurance, however, that in spite of these precautions, an unauthorized third party will not obtain and use information that the Company considers proprietary. In addition, the laws of some foreign countries do not protect the Company’s proprietary rights to the same extent as the laws of the United States. Moreover, the Company does not have confidentiality agreements with any of its employees hired before mid-December 2000. There can be no assurance that the mechanisms used by the Company to protect its software will be adequate or that the Company’s competitors will not independently develop software products that are substantially equivalent or superior to the Company’s products. The Company believes that it has all necessary rights to market its products, although there can be no assurance third parties will not assert infringement claims in the future.

The Company believes that, due to the nature of its products, the skill of personnel, knowledge and experience of management and familiarity with the operation of the Company’s products are more important in maintaining a leadership position in the industry than the protection of intellectual property rights.

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Employees

The Company believes that its employees and their knowledge and capabilities are a major asset. The Company has been successful in attracting and retaining employees skilled in its core business competencies. The Company intends to continue to employ highly skilled personnel, as well as personnel knowledgeable concerning the needs and operations of its major customers.

As of September 30, 2004, the Company had approximately 388 employees, including employees of ISI Europe in Toulouse, France, SAT Corporation in Sunnyvale, California, Newpoint Technologies in Salem, New Hampshire and RT Logic in Colorado Springs and Denver, Colorado. Of the 388 employees, 323 are full-time professionals in engineering related disciplines.

The Company believes that its relations with its employees are good. None of the Company’s employees are covered by collective bargaining agreements.

Industry Segments

The Company operates in four business segments:

The Company and ISI Europe build satellite ground systems for command and control, I&T, data processing, and simulation.

Through its wholly owned subsidiary, SAT (acquired August 2000), the Company offers turnkey systems and software for satellite and terrestrial communications signal monitoring.

The Company provides equipment monitoring and control software to satellite operators and the telecommunications industry through its wholly owned subsidiary, Newpoint (acquired January 2002).

Through its wholly owned subsidiary, RT Logic (acquired October 2002), the Company manufactures satellite communications equipment and systems, principally for military applications. This equipment is used in satellite tracking stations, control centers, spacecraft factories, and range facilities.

See Footnote Number 17 of the notes to the Consolidated Financial Statements included elsewhere herein for financial information regarding these segments.

Available Information

The Company’s web site address is www.integ.com.

The Company makes available free of charge on or through its internet web site its annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and amendments to those reports filed or furnished pursuant to Section 13(a) or 15(d) of the Exchange Act as soon as reasonably practicable after the Company electronically files such material, or furnishes it to, the Commission.

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Operations of the Company and its subsidiaries are conducted in leased properties. The Company believes that it has adequate insurance coverage to protect its properties and assets. The following table describes the location, square footage and lease expiration of the Company’s existing facilities:

The Company is from time to time involved in litigation incidental to the conduct of its business. The Company is not currently a party to any lawsuit or proceeding which, in the opinion of management, would be likely to have a material adverse effect on the Company’s business, financial condition or results of operations.

No matters were submitted to our stockholders during the fourth quarter of the fiscal year ended September 30, 2004.

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PART II

The Company’s common stock is traded on the NASDAQ National Market under the symbol “ISYS.” The following table sets forth for the quarters indicated the high and low sales price of the Company’s common stock and the cash dividends paid per share of common stock.