MDA reports second quarter 2009 results

Summary of Consolidated Results

	Q2-2009	Q2-2008	YTD Q2-2009	YTD Q2-2008
($ thousands, except per common share amounts)
Consolidated revenues	245,794	321,445	517,764	611,882
Net earnings	25,286	13,412	49,708	39,498
Net earnings per common share, basic	0.63	0.33	1.23	0.98
Net earnings per common share, diluted	0.62	0.33	1.23	0.97
Adjusted net earnings1	28,752	25,979	52,345	51,164
Adjusted net earnings per common share, basic	0.71	0.65	1.29	1.27
Adjusted net earnings per common share, diluted	0.71	0.64	1.29	1.25
Weighted average number of common shares outstanding:
(thousands)
Basic	40,455	40,167	40,435	40,234
Diluted	40,625	40,666	40,560	40,820
Average exchange rates:
1 US dollar to Canadian dollar	1.167	1.010	1.206	1.007
1 British pound to Canadian dollar	1.807	1.991	1.797	1.989

Net earnings per share, adjusted for items affecting comparability as set forth in the table below, were 71 cents this quarter compared to 64 cents for the second quarter of 2008. Consolidated revenues were $246 million for the second quarter of 2009 compared to $321 million for the same period a year ago. Revenues were down primarily due to reduced market activity in Information Products.

Reconciliation of net earnings to adjusted net earnings

	Q2-2009	Q2-2008	YTD Q2-2009	YTD Q2-2008
($ thousands)
Net earnings	25,286	13,412	49,708	39,498
Items affecting comparability:
Stock-based compensation expense (recovery)	1,889	(4,724)	5,035	874
Fair value loss (gain) on equity forward contracts	697	15,991	(5,218)	8,924
Restructuring expense	2,416	-	3,549	-
Costs related to terminated divestiture of         Information Systems and Geospatial Services         businesses	-	4,934	-	4,934
Tax on items affecting comparability	(1,536)	(3,634)	(729)	(3,066)
Adjusted net earnings	28,752	25,979	52,345	51,164

MDA’s unaudited consolidated financial statements and management’s discussion and analysis for the three and six months ended June 30, 2009 are available at:
http://www.mdacorporation.com/corporate/investor/financial_reports.cfm

About MDA

MDA provides advanced information solutions that capture and process vast amounts of data, produce essential information, and improve the decision making and operational performance of business and government organizations worldwide.

Focused on markets and customers with strong repeat business potential, MDA delivers a broad spectrum of information solutions, ranging from complex operational systems, to tailored information services, to electronic information products.

MDA employs more than 3,200 people in locations across the United States, the United Kingdom, and Canada. The Company's common shares trade on the Toronto Stock Exchange under the symbol TSX:MDA.

Investor/Analyst Conference Call Today

MDA President and CEO Daniel Friedmann and Executive Vice President and CFO Anil Wirasekara will be available on a Conference Call today, July 29, 2009 at 2:30 p.m. Pacific (5:30 p.m. Eastern) to explain the financial results of the Company and to answer questions.

To participate, dial 1-866-223-7781 in Canada or the United States
In Toronto, dial 416-340-8018

The Conference Call will also be Webcast live and archived at:
http://www.mdacorporation.com/investor/events.cfm

Telephone replay will be available until August 5, 2009 at the following numbers:

Toll free, International, dial 1-800-408-3053
In Toronto, dial 416-695-5800
Pass Code: 5643440

Related Websites:
www.mdacorporation.com.

Forward-Looking Statements

This earnings release and the associated earnings conference call and webcast contains certain forward-looking statements and information, which reflect the current view of MacDonald, Dettwiler and Associates Ltd. (“MDA”) with respect to future events and financial performance. Forward-looking statements generally can be identified by the use of forward-looking terminology such as "may", "will", "expect", "intend", "anticipate", "plan", "foresee", "believe" or "continue" or the negatives of such terms or variations of them or similar terminology. Any such forward-looking statements are based on MDA's current expectations, estimates, projections and assumptions made in light of its experience and its perception of historical trends. Any such forward-looking statements are subject to risks and uncertainties and MDA’s actual results of operations could differ materially from historical results or current expectations. You are referred to the risk factors described in MDA's most recent annual Management's Discussion and Analysis, Annual Information Form and other documents on file with the Canadian securities regulatory authorities, available online at www.sedar.com or www.mdacorporation.com. The forward-looking statements and information contained in this earnings release and the associated earnings conference call and webcast represent MDA’s views only as of today’s date. MDA disclaims any intention or obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, other than as required by law, rule or regulation. You should not place undue reliance on forward-looking statements.

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For more information, please contact:

Wendy Keyzer
MDA External Relations
Telephone: 604-231-2743
E-mail: wendy@mdacorporation.com