Exhibit 99.1

Contacts:
Elise Caffrey Investor Relations iRobot Corp. (781) 430-3003 ecaffrey@irobot.com		Matt Lloyd Media Relations iRobot Corp. (781) 430-3720 mlloyd@irobot.com

iRobot Reports Record Third-Quarter Financial Results
Exceeds Expectations; Increases 2011 Outlook

BEDFORD, Mass., October 25, 2011 — iRobot Corp. (NASDAQ: IRBT), a leader in delivering robotic technology-based solutions, today announced its financial results for the third quarter ended October 1, 2011.

	•		Revenue for the third quarter of 2011 increased 28 percent to $120.4 million, compared with $94.2 million for the same quarter one year ago. Revenue for the first nine months of 2011 increased 17 percent to $334.7 million from $287.0 million last year.
	•		Net income in the third quarter of 2011 was $14.1 million, compared with $7.0 million in the third quarter of 2010. For the first nine months, net income was $29.6 million, up from $18.5 million a year ago. Net income included a one-time tax benefit of $3.5 million in the third-quarter and nine-month periods in 2011. Net income for the third-quarter and nine-month periods in 2010 included a one-time tax benefit of $2.3 million.
	•		Quarterly earnings per share grew by 85 percent to $0.50, compared with $0.27 in the third quarter last year. Nine-month earnings per share grew to $1.06, up from $0.70 in 2010. EPS included a one-time tax benefit of $0.12 in 2011 and $0.09 in 2010.
	•		Adjusted EBITDA for the third quarter of 2011 was $20.2 million, or 17 percent of revenue, compared with $11.5 million, or 12 percent of revenue, in the third quarter of 2010. Adjusted EBITDA for the first nine months of 2011 was $51.7 million, compared with $37.6 million for the same period a year ago.

“Our third quarter and year-to-date results were excellent across all measures and far exceeded our expectations,” said Colin Angle, chairman and chief executive officer of iRobot. “Due to strong performance by both divisions and our expectations for the fourth quarter, we are increasing our full-year 2011 expectations for the second time this year.”

Business Highlights

•		International home robot business continued to perform well in long-term markets as it lays the groundwork to enter new markets. In Q3, international home robot revenue grew 56 percent over Q3 2010 and comprised 75 percent of total home robot revenue.
•		During the third quarter, Government and Industrial Robots division revenue grew 21 percent, and it received delivery orders totaling $51 million, primarily for delivery of PackBot and SUGV robots.
•		Operating cash flow was $25 million in Q3 2011, due to record net income and reduced inventory levels, compared with $10 million in the third quarter last year. Cash and investments totaled $145 million, up $38 million from Q3 last year.

iRobot Corporation
8 Crosby Drive, Bedford, MA 01730-1402 • 781.430.3000 • Fax 781.430.3001 • www.irobot.com

•		Research and development expense increased 45 percent in Q3 2011 and 58 percent in the first nine months year over year.
•		Driven by expectations for a reduction in government-funded research in 2012, iRobot implemented a reduction in force in the Government and Industrial Robots division in the fourth quarter.

Financial Expectations

Management provides the following expectations with respect to the fourth quarter ending December 31, 2011.

Q4 2011:
Revenue		$130 — $135 million
Earnings Per Share			$0.26 — $0.30
Adjusted EBITDA		$16 — $18 million

Management raises its expectations for the full year ending December 31, 2011.

Fiscal Year 2011:		Current				Prior
Revenue		$465 — $470 million				$460 — $470 million
Earnings Per Share		$	1.32 — $1.36			$	1.04 — $1.10
Adjusted EBITDA		$67 — $69 million				$62 — $64 million

Third-Quarter Conference Call

iRobot will host a conference call tomorrow at 8:30 a.m. ET to discuss its financial results for the third fiscal quarter and outlook for 2011 financial performance. Pertinent details include:

		Date: Time: Call-In Number: Passcode:		Wednesday, October 26, 2011 8:30 a.m. ET 617-597-5394 14810709

A live, audio broadcast of the conference call will also be available at http://investor.irobot.com/phoenix.zhtml?c=193096&p=irol-irhome. An archived version of the broadcast will be available on the same website shortly after the conclusion of the live event. A replay of the telephone conference call will be available through November 2, and can be accessed by dialing 617-801-6888, passcode 71428742.

About iRobot Corp.

iRobot designs and builds robots that make a difference. The company’s home robots help people find smarter ways to clean, and its government and industrial robots protect those in harm’s way. iRobot’s consumer and military robots feature iRobot Aware^® robot intelligence systems, proprietary technology incorporating advanced concepts in navigation, mobility, manipulation and artificial intelligence. For more information about iRobot, please visit www.irobot.com.

For iRobot Investors

Certain statements made in this press release that are not based on historical information are forward-looking statements which are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. This press release contains express or implied forward-

iRobot Corporation
8 Crosby Drive, Bedford, MA 01730-1402 • 781.430.3000 • Fax 781.430.3001 • www.irobot.com

looking statements relating to, among other things, iRobot Corp.’s expectations regarding future financial performance and growth, anticipated revenue, Adjusted EBITDA and earnings per share for fiscal year 2011 and the fourth quarter of 2011. These statements are neither promises nor guarantees, but are subject to a variety of risks and uncertainties, many of which are beyond our control, which could cause actual results to differ materially from those contemplated in these forward-looking statements. In particular, the risks and uncertainties include, among other things: our ability to operate in an emerging market, the financial strength of our customers and retailers, general economic conditions, our dependence on the U.S. federal government and government contracts, the timing of government contracts and orders, market acceptance of our products, changes in government policies or spending priorities, and competition. Existing and prospective investors are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. iRobot Corp. undertakes no obligation to update or revise the information contained in this press release, whether as a result of new information, future events or circumstances or otherwise. For additional disclosure regarding these and other risks faced by iRobot Corp., see the disclosure contained in our public filings with the Securities and Exchange Commission.

This release includes Adjusted EBITDA, a non-GAAP financial measure as defined by SEC Regulation G. We define Adjusted EBITDA as earnings before interest, taxes, depreciation and amortization, merger and acquisition expenses, restructuring expenses, net intellectual property litigation expenses and non-cash stock compensation. A reconciliation between net income and Adjusted EBITDA is provided in the financial tables at the end of this press release.

iRobot Corporation
8 Crosby Drive, Bedford, MA 01730-1402 • 781.430.3000 • Fax 781.430.3001 • www.irobot.com

iRobot Corporation
Consolidated Statement of Income
(in thousands, except per share amounts)
(unaudited)

		For the three months ended								For the nine months ended
		October 1,				October 2,				October 1,				October 2,
		2011				2010				2011				2010
Revenue
Product revenue		$	109,993			$	85,051			$	304,100			$	257,107
Contract revenue			10,380				9,172				30,632				29,850
Total			120,373				94,223				334,732				286,957
Cost of Revenue
Product revenue			63,670				54,472				177,695				165,897
Contract revenue			6,660				6,494				21,004				21,116
Total			70,330				60,966				198,699				187,013
Gross Margin			50,043				33,257				136,033				99,944
Operating Expense
Research & development			8,948				6,185				25,823				16,375
Selling & marketing			14,553				10,734				40,301				30,959
General & administrative			10,962				8,904				31,659				26,693
Total			34,463				25,823				97,783				74,027
Operating income			15,580				7,434				38,250				25,917
Other income (expense), net			(92	)			299				258				368
Pre-tax income			15,488				7,733				38,508				26,285
Income tax expense			1,436				701				8,955				7,771
Net income		$	14,052			$	7,032			$	29,553			$	18,514
Net income per common share:
Basic		$	0.52			$	0.28			$	1.11			$	0.73
Diluted		$	0.50			$	0.27			$	1.06			$	0.70
Shares used in per common share calculations:
Basic			26,902				25,428				26,568				25,293
Diluted			27,940				26,480				27,823				26,319
Stock-based compensation included in above figures:
Cost of product revenue		$	344			$	310			$	915			$	997
Cost of contract revenue			115				101				365				337
Research & development			162				211				481				488
Selling & marketing			174				240				513				885
General & administrative			1,401				1,079				4,112				3,325
Total		$	2,196			$	1,941			$	6,386			$	6,032

iRobot Corporation
8 Crosby Drive, Bedford, MA 01730-1402 • 781.430.3000 • Fax 781.430.3001 • www.irobot.com

iRobot Corporation
Condensed Consolidated Balance Sheet
(unaudited, in thousands)

		October 1,				January 1,
		2011				2011
Assets
Cash and equivalents		$	131,662			$	108,383
Short term investments			13,662				13,928
Accounts receivable, net			41,400				34,056
Unbilled revenues			7,899				4,012
Inventory			31,989				27,160
Deferred tax assets			14,013				12,917
Other current assets			12,655				6,137
Total current assets			253,280				206,593
Property, plant and equipment, net			28,886				25,620
Deferred tax assets			6,307				8,338
Other assets			13,453				13,780
Total assets		$	301,926			$	254,331
Liabilities and stockholders’ equity
Accounts payable		$	40,522			$	38,689
Accrued expenses			15,237				15,790
Accrued compensation			15,045				17,827
Deferred revenue and customer advances			2,358				3,534
Total current liabilities			73,162				75,840
Long term liabilities			3,727				3,584
Stockholders’ equity			225,037				174,907
Total liabilities and stockholders’ equity		$	301,926			$	254,331

iRobot Corporation
8 Crosby Drive, Bedford, MA 01730-1402 • 781.430.3000 • Fax 781.430.3001 • www.irobot.com

iRobot Corporation
Consolidated Statement of Cash Flows
(unaudited, in thousands)

		For the three months ended								For the nine months ended
		October 1,				October 2,				October 1,				October 2,
		2011				2010				2011				2010
Cash flows from operating activities:
Net income		$	14,052			$	7,032			$	29,553			$	18,514
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization			2,597				1,918				7,237				5,673
Loss on disposal of property and equipment			3				70				476				117
Stock-based compensation			2,196				1,941				6,386				6,032
Deferred income taxes, net			1,614				(3,867	)			447				(3,867	)
Non-cash director deferred compensation			44				33				126				99
Changes in operating assets and liabilities — (use) source
Accounts receivable			(6,871	)			(661	)			(7,344	)			7,377
Unbilled revenue			135				(221	)			(3,887	)			(703	)
Inventory			2,213				(3,285	)			(4,829	)			(1,563	)
Other assets			(1,763	)			213				(6,572	)			1,010
Accounts payable			7,249				3,909				1,833				5,118
Accrued expenses			1,359				716				(530	)			(315	)
Accrued compensation			1,951				1,964				(2,782	)			(408	)
Deferred revenue			318				54				(1,176	)			(1,885	)
Change in long term liabilities			(123	)			(107	)			143				(322	)
Net cash provided by operating activities			24,974				9,709				19,081				34,877
Cash flows from investing activities:
Purchase of property and equipment			(3,149	)			(1,869	)			(10,357	)			(7,537	)
Purchases of investments			—				(5,050	)			(5,000	)			(30,461	)
Sales of investments			—				11,500				5,000				19,000
Net cash provided by (used in) investing activities			(3,149	)			4,581				(10,357	)			(18,998	)
Cash flows from financing activities:
Proceeds from stock option exercises			801				370				9,398				2,297
Income tax withholding payment associated with restricted stock vesting			(36	)			(5	)			(845	)			(284	)
Tax benefit of excess stock based compensation deductions			347				138				6,002				855
Net cash provided by financing activities			1,112				503				14,555				2,868
Net increase in cash and cash equivalents			22,937				14,793				23,279				18,747
Cash and cash equivalents, at beginning of period			108,725				75,810				108,383				71,856
Cash and cash equivalents, at end of period		$	131,662			$	90,603			$	131,662			$	90,603

iRobot Corporation
8 Crosby Drive, Bedford, MA 01730-1402 • 781.430.3000 • Fax 781.430.3001 • www.irobot.com

Supplemental Information
(unaudited)

		For the three months ended								For the nine months ended
		October 1,				October 2,				October 1,				October 2,
		2011				2010				2011				2010
Revenue: *
Home Robots		$	72,341			$	54,650			$	204,116			$	160,101
Domestic		$	17,961			$	19,818			$	58,415			$	53,077
International		$	54,380			$	34,832			$	145,701			$	107,024
Government & Industrial		$	48,032			$	39,573			$	130,616			$	126,856
Domestic		$	45,930			$	36,013			$	119,509			$	112,624
International		$	2,102			$	3,560			$	11,107			$	14,232
Product		$	37,652			$	30,401			$	99,984			$	97,006
Contract		$	10,380			$	9,172			$	30,632			$	29,850
Product Life Cycle		$	12,286			$	9,060			$	31,606			$	26,649
Gross Margin Percent:
Home Robots			45.1	%			39.7	%			44.9	%			39.0	%
Government & Industrial			36.2	%			29.2	%			33.9	%			29.6	%
Total Company			41.6	%			35.3	%			40.6	%			34.8	%
Units shipped:
Home Robots *			337				308				1,014				889
Government & Industrial			194				186				500				702
Average gross selling prices for robot units:
Home Robots		$	222			$	185			$	203			$	187
Government & Industrial *		$	131			$	115			$	137			$	100
Government & Industrial Funded Product Backlog *		$	28,036			$	34,003			$	28,036			$	34,003
Days sales outstanding			37				29				37				29
Days in inventory			46				57				46				57
Headcount			689				643				689				643

iRobot Corporation
8 Crosby Drive, Bedford, MA 01730-1402 • 781.430.3000 • Fax 781.430.3001 • www.irobot.com

iRobot Corporation
Adjusted EBITDA Reconciliation to GAAP
(unaudited, in thousands)

		For the three months ended								For the nine months ended
		October 1,				October 2,				October 1,				October 2,
		2011				2010				2011				2010
Net income		$	14,052			$	7,032			$	29,553			$	18,514
Interest income, net			(214	)			(206	)			(755	)			(572	)
Income tax expense			1,436				701				8,955				7,771
Depreciation			2,388				1,784				6,615				5,261
Amortization			209				134				622				412
EBITDA			17,871				9,445				44,990				31,386
Stock-based compensation expense			2,196				1,941				6,386				6,032
Merger and acquisition expense			30				61				30				132
Net intellectual property litigation expense			(11	)			31				171				71
Restructuring expense			101				—				101				—
Adjusted EBITDA		$	20,187			$	11,478			$	51,678			$	37,621

Use of Non-GAAP Financial Measures

In evaluating its business, iRobot considers and uses Adjusted EBITDA as a supplemental measure of its operating performance. The Company defines Adjusted EBITDA as earnings before interest, taxes, depreciation and amortization, merger and acquisition expenses, net intellectual property litigation expenses, restructuring expenses and non-cash stock compensation. The Company also presents Adjusted EBITDA because it believes it is frequently used by securities analysts, investors and other interested parties as a measure of financial performance.

The term Adjusted EBITDA is not defined under U.S. generally accepted accounting principles, or U.S. GAAP, and is not a measure of operating income, operating performance or liquidity presented in accordance with U.S. GAAP. Adjusted EBITDA has limitations as an analytical tool, and when assessing the Company’s operating performance, investors should not consider Adjusted EBITDA in isolation, or as a substitute for net income (loss) or other consolidated income statement data prepared in accordance with U.S. GAAP. Among other things, Adjusted EBITDA does not reflect the Company’s actual cash expenditures. Other companies may calculate similar measures differently than iRobot, limiting their usefulness as comparative tools. iRobot compensates for these limitations by relying primarily on its GAAP results and using Adjusted EBITDA only supplementally.

iRobot Corporation
8 Crosby Drive, Bedford, MA 01730-1402 • 781.430.3000 • Fax 781.430.3001 • www.irobot.com

iRobot Corporation
Non-GAAP Net Income and Earnings Per Share Reconciliations to GAAP
(in thousands, except per share amounts)
(unaudited)

		For the three months ended								For the nine months ended
		October 1,				October 2,				October 1,				October 2,
		2011				2010				2011				2010
GAAP net income		$	14,052			$	7,032			$	29,553			$	18,514
Less one-time net income tax benefit associated with release of state deferred tax asset valuation allowance			—				(2,259	)			—				(2,259	)
Less one-time net income tax benefit associated with Section 199 deductions and R&D tax credit true-ups			(3,455	)			—				(3,455	)			—
Non-GAAP net income		$	10,597			$	4,773			$	26,098			$	16,255
GAAP net income per common share:
Basic		$	0.52			$	0.28			$	1.11			$	0.73
Diluted		$	0.50			$	0.27			$	1.06			$	0.70
Less one-time net income tax benefit associated with release of state deferred tax asset valuation allowance
Basic		$	—			$	(0.09	)		$	—			$	(0.09	)
Diluted		$	—			$	(0.09	)		$	—			$	(0.08	)
Less one-time net income tax benefit associated with Section 199 deductions and R&D tax credit true-ups
Basic		$	(0.13	)		$	—			$	(0.13	)		$	—
Diluted		$	(0.12	)		$	—			$	(0.12	)		$	—
Non-GAAP net income per common share:
Basic		$	0.39			$	0.19			$	0.98			$	0.64
Diluted		$	0.38			$	0.18			$	0.94			$	0.62
Shares used in Per Common Share Calculations:
Basic			26,902				25,428				26,568				25,293
Diluted			27,940				26,480				27,823				26,319

iRobot Corporation
8 Crosby Drive, Bedford, MA 01730-1402 • 781.430.3000 • Fax 781.430.3001 • www.irobot.com