For Immediate Release

Deltek Announces Release Date For First Quarter 2010 Results

HERNDON, Va. – April 15, 2010 – Deltek Inc (Nasdaq: PROJ), the leading provider of enterprise applications software and solutions for project-focused businesses, announced today that it will release its first quarter 2010 financial results on Thursday April 29, 2010. The Company will host a conference call at 5:00 p.m. ET to discuss these results.

The dial-in number for the conference call is 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 May 6, 2010 by dialing 1-800-642-1687 in North America and 1-706-645-9291 outside North America (pass code: 68715452). The replay also will be available through May 6, 2010 on Deltek’s website.

About Deltek

Deltek® (Nasdaq: PROJ) is the leading provider of enterprise applications software and solutions 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. Visit www.deltek.com.

Deltek also offers govWin, the industry's only online community dedicated to solving common business problems for government contractors. The govWin network delivers unique and specialized content, offers innovative matching capabilities to establish and manage teaming opportunities, and provides applications to identify, pursue, and win government contracts. Over 12,000 registered members, prime contractors, and small businesses are part of the govWin community. For more information, visit www.govwin.com.

For further information contact:

Media Relations Contact:
Patrick Smith, Senior Director, Public Relations & Analyst Relations, Deltek, Inc.
703.885.9062, PatrickSmith@deltek.com

Investor Relations Contact:
Joe Wilkinson
703.885.9423, joewilkinson@deltek.com