In accordance with ASC 260-Earnings Per Share, for purposes of computing the basic and diluted weighted average shares, results for both 2009 and 2008 have been adjusted prior to June 1, 2009 to reflect the bonus element associated with the Company’s June 2009 common stock rights offering. A summary of these retroactive changes is available on the Investor Relations section of Deltek’s website.

Conference Call Information

Deltek will host a conference call at 5:00 p.m. Eastern Time today to discuss the Company’s third quarter results. To access this call, dial 1-877-381-6419 in North America and 1-706-643-9496 outside North America. No password is required to join the call. The conference call also can be accessed through the Investor Relations section of Deltek’s website ( http://investor.deltek.com). Those unable to participate in the live call may hear a replay through November 5, 2009 by dialing 1-800-642-1687 in North America and 1-706-645-9291 outside North America (pass code: 35743831). The replay also will be available through November 5, 2009 on Deltek’s website.

About Deltek

Deltek (Nasdaq: PROJ) is the leading provider of enterprise applications software designed specifically for project-focused businesses. For more than two decades, our software applications have enabled organizations to automate mission-critical business processes around the engagement, execution and delivery of projects. More than 12,000 customers worldwide rely on Deltek to measure business results, optimize performance, streamline operations and win new business. For more information, visit www.deltek.com.

Use of Non-GAAP Financial Measures

This press release and the related conference call described above contain certain non-GAAP financial measures, including non-GAAP net income, non-GAAP operating income and margin and adjusted EBITDA.

The Company defines non-GAAP net income as GAAP net income before the net-of-tax impact of stock-based compensation, expenses associated with the Company's 2005 recapitalization, amortization of acquired intangible assets and restructuring charges. Non-GAAP operating income and margin is defined as GAAP operating income before the pre-tax impact of stock-based compensation, expenses associated with the Company's 2005 recapitalization, amortization of acquired intangible assets and restructuring charges. Adjusted EBITDA is defined as GAAP net income before interest expenses (net of interest income), provision for income taxes, depreciation, amortization, stock-based compensation, expenses associated with the Company's 2005 recapitalization and restructuring charges.

The Company believes that the presentation of these non-GAAP financial measures provides useful information to its investors and lenders because these measures allow for more accurate comparisons of operating results from period-to-period, enhance the overall understanding of the Company's financial performance and provide greater insight into the prospects for the Company's ongoing business operations. Moreover, the Company also believes it is appropriate to exclude costs associated with restructuring charges because these charges are excluded from management’s assessment of the Company’s operating performance and are not related to the Company’s ongoing business operations. In addition, the Company excludes the items from EBITDA described above in its calculations to determine compliance with its debt covenants and to assess its ability to borrow additional funds to finance or expand its operations.

The Company believes that by reporting these measures, it provides insight and consistency in its financial reporting and presents a basis for comparison of its business operations between current, past and future periods. In addition, the measures provide a basis for the Company to compare its financial results to those of other comparable publicly traded companies and are used by management to plan and forecast its business.

Non-GAAP financial measures should not be considered as a substitute for, or superior to, measures of financial performance which are prepared in accordance with U.S. GAAP and may be different from non-GAAP financial measures used by other companies. Investors are encouraged to review the reconciliations of our GAAP to non-GAAP net income and adjusted EBITDA, which are set forth below.

Forward-Looking Statements

This press release and related conference call contain forward-looking statements that involve substantial risks and uncertainties. You can identify forward-looking statements by words such as "anticipate," "believe," "could," "estimate," "expect," "intend," "may," "plan," "should," "will," "would" or similar words. You should consider these statements carefully because they discuss our plans, targets, strategies, prospects and expectations concerning our business, operating results, financial condition and other similar matters. We believe that it is important to communicate our future expectations to our investors.

There may be events in the future, however, that we are not able to predict accurately or control. Our actual results may differ materially from the expectations we describe in our forward-looking statements. Factors or events that could cause our actual results to materially differ may emerge from time to time, and it is not possible for us to accurately predict all of them. Before you invest in our common stock, you should be aware that the occurrence of any such event or of any of the additional events described as risk factors in the Company's filings with the Securities and Exchange Commission could have a material adverse effect on our business, results of operation and financial position. Any forward-looking statement made by us in this press release or related conference call speaks only as of the date on which we make it. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise, except as required by law.