Exhibit 99.1

CISCO REPORTS THIRD QUARTER EARNINGS

SAN JOSE, Calif. — May 13, 2020 — Cisco today reported third quarter results for the period ended April 25, 2020. Cisco reported third quarter revenue of $12.0 billion, net income on a generally accepted accounting principles (GAAP) basis of $2.8 billion or $0.65 per share, and non-GAAP net income of $3.4 billion or $0.79 per share.

“During this extraordinary time, our priority has been supporting our employees, customers, partners and communities, while positioning Cisco for the future,” said Chuck Robbins, chairman and CEO of Cisco. “The pandemic has driven organizations across the globe to digitize their operations and support remote workforces at a faster speed and greater scale than ever before. We remain focused on providing the technology and solutions our customers need to accelerate their digital organizations.”

GAAP Results

Reconciliations between net income, EPS, and other measures on a GAAP and non-GAAP basis are provided in the tables located in the section entitled “Reconciliations of GAAP to non-GAAP Measures.”

“We executed well in Q3 in a very challenging environment, delivering strong margins and non-GAAP EPS growth,” said Kelly Kramer, CFO of Cisco. “The resiliency that we have been building into our business model is paying off, with software subscriptions now at 74% of our software revenue, up 9 points year over year. We are focused on driving long-term profitable growth while delivering shareholder value.”

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COVID-19 Pandemic Response

We have been focused on helping our employees, customers, partners and communities.

Employees

Customer and Partners

Communities

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Financial Summary

All comparative percentages are on a year-over-year basis unless otherwise noted.

Q3 FY 2020 Highlights

Revenue — Total revenue was $12.0 billion, down 8%, with product revenue down 12% and service revenue up 5%. Revenue by geographic segment was: Americas down 8%, EMEA down 7%, and APJC down 9%. Product revenue was led by growth in Security, up 6%. Infrastructure Platforms was down 15% and Applications was down 5%.

Gross Margin — On a GAAP basis, total gross margin, product gross margin, and service gross margin were 64.9%, 63.7%, and 67.7%, respectively, as compared with 63.1%, 62.0%, and 66.3%, respectively, in the third quarter of fiscal 2019.

On a non-GAAP basis, total gross margin, product gross margin, and service gross margin were 66.6%, 65.8%, and 68.9%, respectively, as compared with 64.6%, 63.7%, and 67.3%, respectively, in the third quarter of fiscal 2019.

Total gross margins by geographic segment were: 67.8% for the Americas, 65.7% for EMEA and 63.5% for APJC.

Operating Expenses — On a GAAP basis, operating expenses were $4.4 billion, down 6%, and were 36.4% of revenue. Non-GAAP operating expenses were $3.8 billion, down 9%, and were 31.8% of revenue.

Operating Income — GAAP operating income was $3.4 billion, down 3%, with GAAP operating margin of 28.5%. Non-GAAP operating income was flat at $4.2 billion, with non-GAAP operating margin at 34.9%.

Provision for Income Taxes — The GAAP tax provision rate was 19.4%. The non-GAAP tax provision rate was 20.0%.

Net Income and EPS — On a GAAP basis, net income was $2.8 billion, a decrease of 9%, and EPS was $0.65, a decrease of 6%. On a non-GAAP basis, net income was $3.4 billion, a decrease of 2%, and EPS was $0.79, an increase of 1%.

Cash Flow from Operating Activities — $4.2 billion for the third quarter of fiscal 2020, a decrease of 2% compared with $4.3 billion for the third quarter of fiscal 2019.

Balance Sheet and Other Financial Highlights

Cash and Cash Equivalents and Investments — $28.6 billion at the end of the third quarter of fiscal 2020, compared with $33.4 billion at the end of fiscal 2019.

Deferred Revenue — $18.6 billion, up 7% in total, with deferred product revenue up 17%. Deferred service revenue was up 1%.

Remaining Performance Obligations — $25.5 billion at the end of the third quarter of fiscal 2020, up 11%.

Capital Allocation — In the third quarter of fiscal 2020, we returned $2.5 billion to shareholders through share buybacks and dividends. We declared and paid a cash dividend of $0.36 per common share, or $1.5 billion, and repurchased approximately 25 million shares of common stock under our stock repurchase program at an average price of $39.71 per share for an aggregate purchase price of $981 million. The remaining authorized amount for stock repurchases under the program is $10.8 billion with no termination date.

Acquisitions

In the third quarter of fiscal 2020, we closed the acquisition of Exablaze, a privately held designer and manufacturer of advanced network devices aimed at reducing latency and improving network performance.

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Guidance for Q4 FY 2020

Cisco expects to achieve the following results for the fourth quarter of fiscal 2020:

Cisco estimates that GAAP EPS will be $0.57 to $0.62 in the fourth quarter of fiscal 2020.

A reconciliation between the Guidance for Q4 FY 2020 on a GAAP and non-GAAP basis is provided in the table entitled “GAAP to non-GAAP Guidance for Q4 FY 2020” located in the section entitled “Reconciliations of GAAP to non-GAAP Measures.”

Editor’s Notes:

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CISCO SYSTEMS, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(In millions, except per-share amounts)

(Unaudited)

The Consolidated Statements of Operations include the results of the divested Service Provider Video Software Solutions (SPVSS) business for the nine months ended April 27, 2019.

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CISCO SYSTEMS, INC.

REVENUE BY SEGMENT

(In millions, except percentages)

Amounts may not sum and percentages may not recalculate due to rounding.

During the second quarter of fiscal 2019 on October 28, 2018, we completed the divestiture of the SPVSS business. SPVSS business revenue for the nine months ended April 27, 2019 was $168 million.

CISCO SYSTEMS, INC.

GROSS MARGIN PERCENTAGE BY SEGMENT

(In percentages)

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CISCO SYSTEMS, INC.

REVENUE FOR GROUPS OF SIMILAR PRODUCTS AND SERVICES

(In millions, except percentages)

Amounts may not sum and percentages may not recalculate due to rounding.

During the second quarter of fiscal 2019 on October 28, 2018, we completed the divestiture of the SPVSS business. SPVSS business revenue for the nine months ended April 27, 2019 was $168 million.

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CISCO SYSTEMS, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(In millions)

(Unaudited)

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CISCO SYSTEMS, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In millions)

(Unaudited)

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CISCO SYSTEMS, INC.

DEFERRED REVENUE

(In millions)

CISCO SYSTEMS, INC.

DIVIDENDS PAID AND REPURCHASES OF COMMON STOCK

(In millions, except per-share amounts)

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CISCO SYSTEMS, INC.

RECONCILIATIONS OF GAAP TO NON-GAAP MEASURES

GAAP TO NON-GAAP NET INCOME

(In millions)

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CISCO SYSTEMS, INC.

RECONCILIATIONS OF GAAP TO NON-GAAP MEASURES

GAAP TO NON-GAAP EPS

Amounts may not sum due to rounding.

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CISCO SYSTEMS, INC.

RECONCILIATIONS OF GAAP TO NON-GAAP MEASURES

GROSS MARGINS, OPERATING EXPENSES, OPERATING MARGINS, INTEREST AND OTHER INCOME (LOSS), NET, AND NET INCOME

(In millions, except percentages)

Amounts may not sum and percentages may not recalculate due to rounding.

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CISCO SYSTEMS, INC.

RECONCILIATIONS OF GAAP TO NON-GAAP MEASURES

EFFECTIVE TAX RATE

(In percentages)

GAAP TO NON-GAAP GUIDANCE FOR Q4 FY 2020

Except as noted above, this guidance does not include the effects of any future acquisitions/divestitures, asset impairments, restructurings and significant tax matters or other events, which may or may not be significant unless specifically stated.

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Forward Looking Statements, Non-GAAP Information and Additional Information

This release may be deemed to contain forward-looking statements, which are subject to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include, among other things, statements regarding future events (such as continued support of our employees, customers, partners and communities, while positioning Cisco for the future, global customer demand to digitize their operations and support remote workforces at a faster speeds and greater scale and our ability to provide the technology and solutions our customers need to accelerate their digital organizations, our ability to continue to build resiliency into our business model, continued growth of revenue from software subscriptions, our ability to drive long-term profitable growth while delivering shareholder value, and future responses to and effects of the COVID-19 pandemic) and the future financial performance of Cisco (including the guidance for Q4 FY 2020) that involve risks and uncertainties. Readers are cautioned that these forward-looking statements are only predictions and may differ materially from actual future events or results due to a variety of factors, including: the impact of the COVID-19 pandemic; business and economic conditions and growth trends in the networking industry, our customer markets and various geographic regions; global economic conditions and uncertainties in the geopolitical environment; overall information technology spending; the growth and evolution of the Internet and levels of capital spending on Internet-based systems; variations in customer demand for products and services, including sales to the service provider market and other customer markets; the return on our investments in certain priorities, key growth areas, and in certain geographical locations, as well as maintaining leadership in routing, switching and services; the timing of orders and manufacturing and customer lead times; changes in customer order patterns or customer mix; insufficient, excess or obsolete inventory; variability of component costs; variations in sales channels, product costs or mix of products sold; our ability to successfully acquire businesses and technologies and to successfully integrate and operate these acquired businesses and technologies; our ability to achieve expected benefits of our partnerships; increased competition in our product and service markets, including the data center market; dependence on the introduction and market acceptance of new product offerings and standards; rapid technological and market change; manufacturing and sourcing risks; product defects and returns; litigation involving patents, intellectual property, antitrust, shareholder and other matters, and governmental investigations; our ability to achieve the benefits of the announced restructuring and possible changes in the size and timing of the related charges; cyber-attacks, data breaches or malware; vulnerabilities and critical security defects; terrorism; natural catastrophic events; any other pandemic or epidemic; our ability to achieve the benefits anticipated from our investments in sales, engineering, service, marketing and manufacturing activities; our ability to recruit and retain key personnel; our ability to manage financial risk, and to manage expenses during economic downturns; risks related to the global nature of our operations, including our operations in emerging markets; currency fluctuations and other international factors; changes in provision for income taxes, including changes in tax laws and regulations or adverse outcomes resulting from examinations of our income tax returns; potential volatility in operating results; and other factors listed in Cisco’s most recent reports on Forms 10-Q and 10-K filed on February 18, 2020 and September 5, 2019, respectively. The financial information contained in this release should be read in conjunction with the consolidated financial statements and notes thereto included in Cisco’s most recent reports on Forms 10-Q and 10-K as each may be amended from time to time. Cisco’s results of operations for the three and nine months ended April 25, 2020 are not necessarily indicative of Cisco’s operating results for any future periods. Any projections in this release are based on limited information currently available to Cisco, which is subject to change. Although any such projections and the factors influencing them will likely change, Cisco will not necessarily update the information, since Cisco will only provide guidance at certain points during the year. Such information speaks only as of the date of this release.

This release includes non-GAAP net income, non-GAAP gross margins, non-GAAP operating expenses, non-GAAP operating income and margin, non-GAAP effective tax rates, non-GAAP interest and other income (loss), net, and non-GAAP net income per share data for the periods presented. It also includes future estimated ranges for gross margin, operating margin, tax provision rate and EPS on a non-GAAP basis.

These non-GAAP measures are not in accordance with, or an alternative for, measures prepared in accordance with generally accepted accounting principles and may be different from non-GAAP measures used by other companies. In addition, these non-GAAP measures are not based on any comprehensive set of accounting rules or principles. Cisco believes that non-GAAP measures have limitations in that they do not reflect all of the amounts associated with Cisco’s results of operations as determined in accordance with GAAP and that these measures should only be used to evaluate Cisco’s results of operations in conjunction with the corresponding GAAP measures.

Cisco believes that the presentation of non-GAAP measures when shown in conjunction with the corresponding GAAP measures, provides useful information to investors and management regarding financial and business trends relating to its financial condition and its historical and projected results of operations.

For its internal budgeting process, Cisco’s management uses financial statements that do not include, when applicable, share-based compensation expense, amortization of acquisition-related intangible assets, acquisition-related/divestiture costs, significant asset impairments and restructurings, significant litigation settlements and other contingencies, gains and losses on equity investments, the income tax effects of the foregoing and significant tax matters. Cisco’s management also uses the foregoing non-GAAP measures, in addition to the corresponding GAAP measures, in reviewing the financial results of Cisco. In prior periods, Cisco has excluded other items that it no longer excludes for purposes of its non-GAAP financial measures. From time to time in the future there may be other items that Cisco may exclude for purposes of its internal budgeting process and in reviewing its financial results. For additional information on the items excluded by Cisco from one or more of its non-GAAP financial measures, refer to the Form 8-K regarding this release furnished today to the Securities and Exchange Commission.

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Cisco divested its Service Provider Video Software Solutions business (SPVSS) during the second quarter of fiscal 2019 on October 28, 2018. This release includes, where indicated, financial measures that exclude the SPVSS business. Cisco believes that the presentation of these measures provides useful information to investors and management regarding financial and business trends relating to its financial condition and its historical and projected results of operations because the SPVSS business will not be part of Cisco on a go forward basis. Cisco’s management also uses the financial measures excluding the SPVSS business in reviewing the financial results of Cisco.

About Cisco

Cisco (Nasdaq: CSCO) is the worldwide technology leader that has been making the Internet work since 1984. Our people, products and partners help society securely connect and seize tomorrow’s digital opportunity today. Discover more at newsroom.cisco.com and follow us on Twitter at @Cisco.

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