551 Fifth Avenue
Suite 300
New York, NY 10176

PRESS RELEASE

ABM INDUSTRIES ANNOUNCES 2011 FOURTH QUARTER AND FULL-
YEAR FINANCIAL RESULTS

Company Posts Record Revenues of $4.2 Billion; Meets EPS Guidance; Raises Dividend

		Quarter Ended												Year Ended
(in millions, except per share data)		October 31,								Increase				October 31,								Increase
(unaudited)		2011				2010				(Decrease)				2011				2010				(Decrease)
Revenues		$	1,081.3			$	901.4				20.0	%		$	4,246.8			$	3,495.7				21.5	%
Net cash provided by continuing operating activities		$	74.2			$	67.8				9.4	%		$	156.8			$	140.7				11.4	%
Income from continuing operations		$	18.2			$	21.4				(15.0	)%		$	68.7			$	63.9				7.5	%
Income from continuing operations per diluted share		$	0.33			$	0.41				(19.5	)%		$	1.27			$	1.21				5.0	%
Net income		$	18.0			$	21.8				(17.4	)%		$	68.5			$	64.1				6.9	%
Net income per diluted share		$	0.33			$	0.41				(19.5	)%		$	1.27			$	1.21				5.0	%
Adjusted income from continuing operations		$	20.4			$	22.6				(9.7	)%		$	75.0			$	70.5				6.4	%
Adjusted income from continuing operations per diluted share		$	0.37			$	0.43				(14.0	)%		$	1.39			$	1.34				3.7	%
Adjusted EBITDA		$	51.3			$	47.9				7.1	%		$	184.0			$	155.9				18.0	%

(This release refers to non-GAAP financial measures described as “Adjusted EBITDA”, “Adjusted Income from Continuing Operations”, and “Adjusted Income from Continuing Operations per Diluted Share” (or “Adjusted EPS”). Refer to the accompanying financial tables for supplemental financial data and corresponding reconciliation of these non-GAAP financial measures to certain GAAP financial measures.)

NEW YORK, NY — December 13, 2011 — ABM Industries Incorporated (NYSE:ABM) today announced financial results for the fiscal 2011 fourth quarter and full year. Revenues for the fourth quarter of fiscal year 2011 reached a record $1.08 billion, a 20% increase compared to fourth quarter of fiscal year 2010 revenues of $901.4 million, driven primarily by acquisitions. Income from continuing operations for the quarter was $18.2 million compared to $21.4 million for the fourth quarter of fiscal year 2010, primarily reflecting the impact of increased labor expense from one additional workday as

well as higher taxes from the reduced availability of employment-based tax credits compared to the year-ago quarter. Net cash flow from continuing operations for the fourth quarter of fiscal year 2011 increased 9.4% to $74.2 million. For the full year, the Company reported a 21.5% increase in revenues to $4.2 billion compared to $3.5 billion for fiscal year 2010, driven by acquisitions. Income from continuing operations increased to $68.7 million, or $1.27 per diluted share, compared to $63.9 million, or $1.21 per diluted share, for the 2010 fiscal year. Adjusted income from continuing operations increased to $75.0 million, or $1.39 per diluted share, compared to $70.5 million, or $1.34 per diluted share, in fiscal year 2010.

Fourth Quarter Results

“Even in the face of continuing economic headwinds, ABM continues to deliver strong results,” said Henrik Slipsager, president and chief executive officer, ABM Industries. “The businesses we acquired helped drive a record $1.08 billion in quarterly revenues, our fourth consecutive quarter with revenues in excess of $1 billion and a 20% increase compared to the year-ago quarter. All four Divisions produced higher revenues year-over-year as the successful integration of the companies we acquired continues to help drive overall top line growth and increased profitability for the Company. Income in the quarter was impacted by the increased labor expense from one additional workday and higher taxes compared to the year-ago quarter. We achieved net cash flow from continuing operations of $74.2 million, a 9.4% increase compared to the fourth quarter of 2010.”

For the quarter, Janitorial revenue increased by 1.4% year-over-year while operating profit declined 8.4%, driven by higher labor costs resulting from the additional workday. Engineering revenues grew by 149.0% over the 2010 fourth quarter and profits by 41.4%, primarily reflecting the contributions of Linc. Parking revenues were 19.3% higher than the year-before quarter and profits were up by 11.2%, driven by results from the L&R acquisition. Security increased revenues by 3.1% while profit fell by 6.8%, primarily the result of price compression.

Year in Review

Slipsager added: “The successful integration of Linc was one of the year’s highlights and we are proud that, as promised, Linc was slightly accretive to ABM’s earnings in fiscal 2011, excluding acquisition costs. For the year, each Division generated higher year-over-year revenues and profitability. On operating profit, Engineering grew by more than 45%, reflecting the contribution of Linc. Janitorial grew revenues and operating profit over 2010, despite the additional workday, higher state unemployment insurance expense and increased fuel costs for the year. As a result of our continued focus on our long-term strategy, we achieved an 18% increase in adjusted EBITDA to $184 million for the year, which reflects a doubling of adjusted EBITDA in the past four years, despite one of the worst economic periods in history.”

“From a cash-flow perspective, we achieved one of our strongest fiscal years — including $156.8 million in cash flow from continuing operations,” said executive vice president and chief financial officer James Lusk. “Also, we reduced borrowings since the Linc acquisition by more than $150 million to $300 million at October 31, 2011, and lowered our adjusted EBITDA leverage ratio to approximately 1.6x from 2.5x.”

Slipsager concluded: “We ended the year well-positioned as we have leveraged our acquisitions to increase sales, expand our service capabilities and extend our market reach. We look forward to the 2012 fiscal year to continue executing on our long-term strategic plans and launching new initiatives to drive future growth in key vertical markets.”

Dividend

The Company also announced that the Board of Directors has declared a first quarter cash dividend of $0.145 per common share — which is a 4% increase — payable on February 6, 2012 to stockholders of record on January 5, 2012. This will be ABM’s 183^rd consecutive quarterly cash dividend.

Guidance

Given the continuing macro-economic conditions, the Company is estimating that full fiscal year 2012 income from continuing operations per diluted share will be in the range of $1.26 to $1.36 and adjusted income from continuing operations per diluted share, for the same period, will be in the range of $1.40 to $1.50. Fiscal year 2012 will have one extra day compared to fiscal 2011, which will occur in the 2012 third quarter and is expected to impact earnings per diluted share by $0.04 to $0.05. In addition, the effective tax rate for fiscal year 2012 is expected to be in the range of 39% to 41%, from 35% in fiscal year 2011.

Earnings Webcast

On Wednesday, December 14, at 9:00 a.m. (EST), ABM will host a live webcast of remarks by president and chief executive officer Henrik Slipsager and executive vice president and chief financial officer James Lusk. A supplemental presentation will accompany the webcast and will be accessible through the Investor Relations portion of ABM’s website by clicking on the “Presentations” tab.

The webcast will be accessible at: http://investor.abm.com/eventdetail.cfm?eventid=106581

Listeners are asked to be online at least 15 minutes early to register, as well as to download and install any complimentary audio software that might be required. Following the call, the webcast will be available at this URL for a period of 90 days.

In addition to the webcast, a limited number of toll-free telephone lines will also be available for listeners who are among the first to call 877-664-7395 within 15 minutes before the event. Telephonic replays will be accessible during the period from two hours to seven days after the call by dialing 855-859-2056 and then entering ID #34160866.

Earnings Webcast Presentation

In connection with the webcast to discuss earnings (see above), a slide presentation related to earnings and operations will be available on the Company’s website at www.abm.com and can be accessed through the Investor Relations section of ABM’s website by clicking on the “Presentations” tab.

About ABM Industries Incorporated

ABM Industries Incorporated (NYSE:ABM), which operates through its subsidiaries (collectively “ABM”), is a leading provider of integrated facility services. With fiscal 2011 revenues of approximately $4.2 billion and nearly 100,000 employees, ABM provides commercial cleaning and maintenance, facility engineering, energy efficiency, parking and security services for thousands of commercial, industrial, government and retail clients across the United States and various international locations. ABM’s business services include ABM Janitorial Services, ABM Facility Services, ABM Engineering Services, Ampco System Parking and ABM Security Services. For more information, visit www.abm.com.

Cautionary Statement under the Private Securities Litigation Reform Act of 1995

This press release contains forward-looking statements that set forth management’s anticipated results based on management’s current plans and assumptions. Any number of factors could cause the Company’s actual results to differ materially from those anticipated. These factors include but are not limited to the following: (1) our acquisition strategy may adversely impact our results of operations as we may not be able to achieve anticipated results from any given acquisition and activities relating to integrating the acquired business may divert management’s focus on operational matters; (2) we are subject to intense competition that can constrain our ability to gain business, as well as our profitability; (3) any increases in costs that we cannot pass on to clients could affect our profitability; (4) we have high deductibles for certain insurable risks, and, therefore are subject to volatility associated with those risks; (5) we primarily provide our services pursuant to agreements which are cancelable by either party upon 30 to 90 days’ notice; (6) our success depends on our ability to preserve our long-term relationships with clients; (7) our international business exposes us to additional risks, including risks related to compliance with both U.S. and foreign laws; (8) we conduct some of our operations through joint ventures and our ability to do business may be affected by the failure of our joint venture partners to perform their obligations or the improper conduct of employees, joint venture partners or agents; (9) significant delays or reductions in appropriations for our government contracts may negatively affect our business, and could have a material adverse effect on our financial position, results of operations or cash flows; (10) we incur significant accounting and other control costs that reduce profitability; (11) a decline in commercial office building occupancy and rental rates could affect our revenues and profitability; (12) deterioration in economic conditions in general could further reduce the demand for facility services and, as a result, could reduce our earnings and adversely affect our financial condition; (13) financial difficulties or bankruptcy of one or more of our major clients could adversely affect our results; (14) our ability to operate and pay our debt obligations depends upon our access to cash; (15) future declines in the fair value of our investments in auction rate securities could negatively impact our earnings; (16) uncertainty in the credit markets may negatively impact our costs of borrowing, our ability to collect receivables on a timely basis and our cash flow; (17) any future increase in the level of debt or in interest rates can affect out results of operations; (18) an impairment charge could have a material adverse effect on our financial condition and results of operations; (19) we are defendants in a number of class and representative actions or other lawsuits alleging various claims that could cause us to incur substantial liabilities; (20) federal health care reform legislation may adversely affect our business and results of operations; (21) changes in immigration laws or enforcement actions or investigations under such laws could significantly adversely affect our labor force, operations and financial results; (22) labor disputes could lead to loss of revenues or expense variations; (23) we participate in multi-employer defined benefit plans which could result in substantial liabilities being incurred; and (24) natural disasters or acts of terrorism could disrupt services.

Additional information regarding these and other risks and uncertainties the Company faces is contained in the Company’s Annual Report on Form 10-K for the year ended October 31, 2010 and in other reports the Company files from time to time with the Securities and Exchange Commission.

Use of Non-GAAP Financial Information

To supplement ABM’s consolidated financial information, the Company has presented income from continuing operations, as adjusted for items impacting comparability, for the fourth quarter and full year of fiscal years 2011 and 2010. The Company also presents guidance for fiscal year 2012, as adjusted. These adjustments have been made with the intent of providing financial measures that give management and investors a better understanding of the underlying operational results and trends as well as ABM’s marketplace performance. In addition, the Company has presented earnings before interest, taxes, depreciation and amortization and excluding discontinued operations and items impacting comparability (adjusted EBITDA) for the fourth quarter and full year of fiscal years 2011 and 2010. Adjusted EBITDA is among the indicators management uses as a basis for planning and forecasting future periods. The presentation of these non-GAAP financial measures is not meant to be considered in isolation or as a substitute for financial statements prepared in accordance with generally accepted accounting principles in the United States. (See accompanying financial tables for supplemental financial data and corresponding reconciliations to certain GAAP financial measures.)

Contact:

Investors & Analysts:		David Farwell		Media:		Tony Mitchell
		(212) 297-9792				(212) 297-9828
		dfarwell@abm.com				tony.mitchell@abm.com

###

Financial Schedules

ABM INDUSTRIES INCORPORATED AND SUBSIDIARIES

CONDENSED CONSOLIDATED INCOME STATEMENT INFORMATION (UNAUDITED)

		Quarter Ended October 31,								Increase
(In thousands, except per share data)		2011				2010				(Decrease)
Revenues		$	1,081,343			$	901,373				20.0	%
Expenses
Operating			959,592				803,719				19.4	%
Selling, general and administrative			82,356				58,783				40.1	%
Amortization of intangible assets			5,975				3,113				91.9	%
Total expenses			1,047,923				865,615				21.1	%
Operating profit			33,420				35,758				(6.5	)%
Income from unconsolidated affiliates, net			1,130				—			NM		*
Interest expense			(3,328	)			(1,098	)			203.1	%
Income from continuing operations before income taxes			31,222				34,660				(9.9	)%
Provision for income taxes			(13,040	)			(13,222	)			(1.4	)%
Income from continuing operations			18,182				21,438				(15.2	)%
(Loss) income from discontinued operations, net of taxes			(134	)			368			NM		*
Net Income		$	18,048			$	21,806				(17.2	)%
Net Income Per Common Share — Basic
Income from continuing operations		$	0.34			$	0.42				(19.0	)%
(Loss) income from discontinued operations, net of taxes			—				—			NM		*
Net Income		$	0.34			$	0.42				(19.0	)%
Net Income Per Common Share — Diluted
Income from continuing operations		$	0.33			$	0.41				(19.5	)%
(Loss) income from discontinued operations, net of taxes			—				—			NM		*
Net Income		$	0.33			$	0.41				(19.5	)%

Average Common And Common Equivalent Shares
Basic			53,331				52,490
Diluted			54,158				53,369
Dividends Declared Per Common Share		$	0.145			$	0.135

ABM INDUSTRIES INCORPORATED AND SUBSIDIARIES

CONDENSED CONSOLIDATED INCOME STATEMENT INFORMATION (UNAUDITED)

		Year Ended October 31,								Increase
(In thousands, except per share data)		2011				2010				(Decrease)
Revenues		$	4,246,842			$	3,495,747				21.5	%
Expenses
Operating			3,781,264				3,134,018				20.7	%
Selling, general and administrative			324,762				241,526				34.5	%
Amortization of intangible assets			23,248				11,364				104.6	%
Total expenses			4,129,274				3,386,908				21.9	%
Operating profit			117,568				108,839				8.0	%
Other-than-temporary impairment losses on auction rate security:
Impairments recognized in other comprehensive income			—				(127	)		NM		*
Income from unconsolidated affiliates, net			3,915				—			NM		*
Interest expense			(15,805	)			(4,639	)			240.7	%
Income from continuing operations before income taxes			105,678				104,073				1.5	%
Provision for income taxes			(36,980	)			(40,203	)			(8.0	)%
Income from continuing operations			68,698				63,870				7.6	%
(Loss) income from discontinued operations, net of taxes			(194	)			251			NM		*
Net Income		$	68,504			$	64,121				6.8	%
Net Income Per Common Share — Basic
Income from continuing operations		$	1.29			$	1.23				4.9	%
(Loss) income from discontinued operations, net of taxes			—				—			NM		*
Net Income		$	1.29			$	1.23				4.9	%
Net Income Per Common Share — Diluted
Income from continuing operations		$	1.27			$	1.21				5.0	%
(Loss) income from discontinued operations, net of taxes			—				—			NM		*
Net Income		$	1.27			$	1.21				5.0	%

Average Common And Common Equivalent Shares
Basic			53,121				52,117
Diluted			54,103				52,908
Dividends Declared Per Common Share		$	0.565			$	0.540

ABM INDUSTRIES INCORPORATED AND SUBSIDIARIES

SELECTED CONSOLIDATED CASH FLOW INFORMATION (UNAUDITED)

		Quarter Ended October 31,
(In thousands)		2011				2010
Net cash provided by continuing operating activities			74,248				67,787
Net cash provided by discontinued operating activities			905				1,787
Net cash provided by operating activities		$	75,153			$	69,574
Net cash used in investing activities		$	(4,847	)		$	(39,928	)
Proceeds from exercises of stock options (including income tax benefit)			189				5,210
Dividends paid			(7,466	)			(7,101	)
Deferred financing costs paid			(30	)			—
Borrowings from line of credit			145,000				149,500
Repayment of borrowings from line of credit			(210,000	)			(159,000	)
Changes in book cash overdrafts			(11,146	)			(11,711	)
Net cash used in financing activities		$	(83,453	)		$	(23,102	)

		Year Ended October 31,
(In thousands)		2011				2010
Net cash provided by continuing operating activities			156,800				140,746
Net cash provided by discontinued operating activities			3,190				9,118
Net cash provided by operating activities		$	159,990			$	149,864
Acquisition of Linc (net of cash acquired)			(290,253	)			—
Other investing			(17,159	)			(87,860	)
Net cash used in investing activities		$	(307,412	)		$	(87,860	)
Proceeds from exercises of stock options (including income tax benefit)			9,708				11,376
Dividends paid			(29,744	)			(28,152	)
Deferred financing costs paid			(5,021	)			—
Borrowings from line of credit			885,500				448,000
Repayment of borrowings from line of credit			(726,000	)			(480,000	)
Changes in book cash overdrafts			—				(7,935	)
Net cash provided by (used in) financing activities			134,443			$	(56,711	)

ABM INDUSTRIES INCORPORATED AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEET INFORMATION (UNAUDITED)

		October 31,				October 31,
(In thousands)		2011				2010
Assets
Cash and cash equivalents		$	26,467			$	39,446
Trade accounts receivable, net			552,098				450,513
Prepaid income taxes			7,205				1,498
Current assets of discontinued operations			1,992				4,260
Prepaid expenses			41,823				41,306
Notes receivable and other			52,756				20,402
Deferred income taxes, net			40,565				46,193
Insurance recoverables			10,851				5,138
Total current assets			733,757				608,756
Non-current assets of discontinued operations			216				1,392
Insurance deposits			35,974				36,164
Other investments and long-term receivables			5,798				4,445
Deferred income taxes, net			30,948				51,068
Insurance recoverables			59,759				70,960
Other assets			43,178				37,869
Investments in auction rate securities			15,670				20,171
Investments in unconsolidated affiliates, net			14,423				—
Property, plant and equipment, net			60,009				58,088
Other intangible assets, net			128,994				65,774
Goodwill			750,872				593,983
Total assets		$	1,879,598			$	1,548,670
Liabilities
Trade accounts payable		$	130,464			$	78,928
Accrued liabilities
Compensation			112,233				89,063
Taxes — other than income			19,144				17,663
Insurance claims			78,828				77,101
Other			102,220				70,119
Income taxes payable			307				977
Total current liabilities			443,196				333,851
Income taxes payable			38,236				29,455
Line of credit			300,000				140,500
Retirement plans and other			39,707				34,626
Insurance claims			262,573				271,213
Total liabilities			1,083,712				809,645
Stockholders’ Equity			795,886				739,025
Total liabilities and stockholders’ equity		$	1,879,598			$	1,548,670

ABM INDUSTRIES INCORPORATED AND SUBSIDIARIES

REVENUES AND OPERATING PROFIT BY SEGMENT (UNAUDITED)

		Quarter Ended October 31,								Increase
(In thousands)		2011				2010				(Decrease)
Revenues
Janitorial		$	596,638			$	588,561				1.4	%
Engineering			241,323				96,913				149.0	%
Parking			153,363				128,585				19.3	%
Security			89,747				87,040				3.1	%
Corporate			272				274				(0.7	)%
		$	1,081,343			$	901,373				20.0	%
Operating Profit
Janitorial		$	35,679			$	38,967				(8.4	)%
Engineering			9,214				6,516				41.4	%
Parking			7,458				6,705				11.2	%
Security			2,957				3,174				(6.8	)%
Corporate			(21,888	)			(19,604	)			(11.7	)%
Operating profit			33,420				35,758				(6.5	)%
Income from unconsolidated affiliates, net			1,130				—			NM		*
Interest expense			(3,328	)			(1,098	)			203.1	%
Income from continuing operations before income taxes		$	31,222			$	34,660				(9.9	)%

REVENUES AND OPERATING PROFIT BY SEGMENT (UNAUDITED)

		Year Ended October 31,								Increase
(In thousands)		2011				2010				(Decrease)
Revenues
Janitorial		$	2,380,195			$	2,306,098				3.2	%
Engineering			899,381				382,629				135.1	%
Parking			615,679				469,398				31.2	%
Security			350,377				336,249				4.2	%
Corporate			1,210				1,373				(11.9	)%
		$	4,246,842			$	3,495,747				21.5	%
Operating Profit
Janitorial		$	140,621			$	140,007				0.4	%
Engineering			33,384				22,931				45.6	%
Parking			24,257				22,738				6.7	%
Security			7,968				7,487				6.4	%
Corporate			(88,662	)			(84,324	)			(5.1	)%
Operating profit			117,568				108,839				8.0	%
Other-than-temporary impairment losses on auction rate security:
Impairments recognized in other comprehensive income			—				(127	)		NM		*
Income from unconsolidated affiliates, net			3,915				—			NM		*
Interest expense			(15,805	)			(4,639	)			240.7	%
Income from continuing operations before income taxes		$	105,678			$	104,073				1.5	%

*		Not Meaningful

ABM Industries Incorporated and Subsidiaries
Reconciliations of Non-GAAP Financial Measures
(Unaudited)
(in thousands, except per share data)

		Quarter Ended October 31,								Year Ended October 31,
		2011				2010				2011				2010
Reconciliation of Adjusted Income from Continuing Operations to Net Income
Adjusted income from continuing operations		$	20,377			$	22,624			$	74,962			$	70,541
Items impacting comparability, net of taxes			(2,195	)			(1,186	)			(6,264	)			(6,671	)
Income from continuing operations			18,182				21,438				68,698				63,870
(Loss) income from discontinued operations			(134	)			368				(194	)			251
Net income		$	18,048			$	21,806			$	68,504			$	64,121
Reconciliation of Adjusted Income from Continuing Operations to Income from Continuing Operations
Adjusted income from continuing operations		$	20,377			$	22,624			$	74,962			$	70,541
Items impacting comparability:
Linc purchase accounting			—				—				(838	)			—
Corporate initiatives and other (a)			(2,924	)			—				(3,252	)			(1,869	)
Insurance adjustments			223				(1,216	)			(856	)			(1,216	)
Litigation and other settlements			355				—				1,402				(5,406	)
Acquisition costs			(780	)			(716	)			(6,092	)			(2,374	)
Total items impacting comparability			(3,126	)			(1,932	)			(9,636	)			(10,865	)
Income taxes benefit			931				746				3,372				4,194
Items impacting comparability, net of taxes			(2,195	)			(1,186	)			(6,264	)			(6,671	)
Income from continuing operations		$	18,182			$	21,438			$	68,698			$	63,870
Reconciliation of Adjusted EBITDA to Net Income
Adjusted EBITDA		$	51,339			$	47,933			$	184,023			$	155,892
Items impacting comparability			(3,126	)			(1,932	)			(9,636	)			(10,865	)
Discontinued operations			(134	)			368				(194	)			251
Income tax			(13,040	)			(13,222	)			(36,980	)			(40,203	)
Interest expense			(3,328	)			(1,098	)			(15,805	)			(4,639	)
Depreciation and amortization			(13,663	)			(10,243	)			(52,904	)			(36,315	)
Net income		$	18,048			$	21,806			$	68,504			$	64,121

(a)		Corporate initiatives for the three months and year ended October 2011 includes the integration costs associated with The Linc Group (TLG). Corporate initiatives for the year ended October 2010 includes: (i) costs associated with the implementation of a new payroll and human resources information system, (ii) the upgrade of the Company’s accounting system, (iii) the completion of the corporate move from San Francisco, and (iv) the integration costs associated with OneSource.

(Continued)

Reconciliation of Adjusted Income from Continuing Operations per Diluted
     Share to Income from Continuing Operations per Diluted Share (Unaudited)

		Quarter Ended October 31,								Year Ended October 31,
		2011				2010				2011				2010
Adjusted income from continuing operations per diluted share		$	0.37			$	0.43			$	1.39			$	1.34
Items impacting comparability, net of taxes			(0.04	)			(0.02	)			(0.12	)			(0.13	)
Income from continuing operations per diluted share		$	0.33			$	0.41			$	1.27			$	1.21
Diluted shares			54,158				53,369				54,103				52,908

ABM INDUSTRIES INCORPORATED AND SUBSIDIARIES
CALCULATION OF ADJUSTED EBITDA LEVERAGE RATIO (UNAUDITED) (in thousands)

LEVERAGE RATIO — Post Linc Acquisition
(1) Outstanding borrowings *		$	452,461
(2) Adjusted EBITDA **		$	184,023
Ratio of (1) to (2)			2.46
LEVERAGE RATIO — October 31, 2011
(1) Outstanding borrowings *		$	300,000
(2) Adjusted EBITDA **		$	184,023
Ratio of (1) to (2)			1.63

*		Outstanding borrowings immediately following the acquisition of Linc on December 1, 2010.
**		Adjusted EBITDA for trailing twelve months as of October 31, 2011 (for comparison purposes).

ABM Industries Incorporated and Subsidiaries
Reconciliation of Estimated Adjusted Income from Continuing Operations per Diluted Share to
Income from Continuing Operations per Diluted Share for the Year Ending October 31, 2012

		Year Ending October 31, 2012
		Low Estimate				High Estimate
		(per diluted share)
Adjusted income from continuing operations per diluted share		$	1.40			$	1.50
Adjustments to income from continuing operations (a)		$	(0.14	)		$	(0.14	)
Income from continuing operations per diluted share		$	1.26			$	1.36

(a)		Adjustments to income from continuing operations are expected to include rebranding costs and other unqiue items impacting comparability.