Callidus Software Named Company of the Year in Eighth Annual International Stevie Awards (SM)Callidus Nominated in Best Company and Best Product Categories

PLEASANTON, Calif., August 4, 2011 — Callidus Software Inc. (NASDAQ: CALD), the leader in Sales Performance Management (SPM), announced today that the company was named the winner in the "Company of the Year - Computer Software" category in the Eighth Annual International Business Awards. Callidus' Monaco On Demand Suite was named a Distinguished Honoree in the "Best New Product or Service of the Year - Computer Software - New Version" category. The International Business Awards are the only global, all-encompassing business awards program honoring great performances in business.

"We are simply thrilled to be named the company of the year in the software category," said Leslie Stretch, President and CEO. "We have worked hard to make Callidus a great place to work, a great company to buy from and a great business to invest in. We are growing our Software as a Service company at 20% a year in turbulent markets and I attribute this award, our momentum and success to our dedicated people. I am incredibly proud of our world-class team's commitment in building our foundation for long-term success in the SaaS market and I could not be more excited about the future of the company as we continue to make progress."

Recipients of International Stevie Awards trophies were selected from more than 3,000 entries received from organizations and individuals in more than 40 nations. Organizations all over the world are eligible to compete in The International Business Awards, and can enter in any of more than 40 categories from Company of the Year and Best New Product of the Year to Corporate Social Responsibility Program of the Year and Executive of the Year. Honorees were determined through two rounds of judging by close to 200 professionals worldwide.

"Entries to The International Business Awards grew by more than 80% this year, and that illustrates the increasing importance of the IBAs worldwide," said Michael Gallagher, president of the Stevie Awards, presenters of the IBAs. "We congratulate all of the honorees, and we look forward to recognizing them for their achievements at our gala event in Abu Dhabi on 11 October."

Complete lists of honorees and other details are available at www.stevieawards.com/iba.

Callidus Software's award-winning solutions manage the entire sales talent lifecycle from onboarding, to incentives and rewards, to coaching and learning, while providing visibility into operations and financial performance. This gives customers the ability to align their sales force and channel partners with their key business objectives to consistently and reliably execute on sales targets. The software is used by leading companies in a broad range of verticals including high-tech, telecommunications, banking, insurance, and pharmaceuticals. Since its inception nearly 15 years ago, the company has evolved into the most experienced, proven, and reliable SPM vendor in the marketplace. Callidus Software powers more than 2.5 million users across the globe.

About the Stevie Awards

Stevie Awards are conferred in four programs: The American Business Awards, The International Business Awards, the Stevie Awards for Women in Business, and the Stevie Awards for Sales & Customer Service. Honoring organizations of all types and sizes and the people behind them, the Stevies recognize outstanding performances in the workplace worldwide. Learn more about the Stevie Awards at www.stevieawards.com.

Location hosting patron for The 2011 International Business Awards is the Ministry of Foreign Trade of the United Arab Emirates. Premier sponsors include IBM Netezza and Smart Reader® Worldwide. The Korea Business Communicators Association is the national sponsor for South Korea. Localization sponsor of the 2011 Stevie Awards is SDL. Location hosting supporters of the 2011 IBAs include Abu Dhabi Department of Economic Development, Abu Dhabi Chamber of Commerce & Industries, Dana Gas, the Gemological Institute of America and The International Business Times.

About Callidus Software

Callidus Software (NASDAQ:CALD) is the market and technology leader in Sales Performance Management (SPM). Callidus customers gain a competitive advantage by maximizing sales cost efficiencies and driving improvements in sales effectiveness. Our award-winning Software-as-a-Service (SaaS) applications set the standard for performance management of a company’s sales force and channel partners. Over 2 million employees and channel partners have their performance managed by Callidus Software. For more information, please visit www.callidussoftware.com.

© 1997-2011 Callidus Software Inc. All rights reserved. Callidus Software, the Callidus Software logo, TrueComp Manager, ActekSoft and ACom3 are trademarks, service marks, or registered trademarks of Callidus Software Inc. in the United States and other countries. All other brand, service or product names are trademarks or registered trademarks of their respective companies or owners.

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Press Contact:

Rajendran Nair

Callidus Software Inc.

925-251-2255

pr@callidussoftware.com