Campbell, Calif. – October 10, 2007 – Rainmaker Systems, Inc. (NASDAQ: RMKR), a leading provider of sales and marketing solutions combining hosted application software and execution services, today announced that it has been named to Deloitte and Touche's prestigious Technology Fast 50 Program for Silicon Valley, a ranking of the fastest growing technology, media, telecommunications, and life sciences companies in the region. Rankings are based on the percentage revenue growth over five years from 2002-2006.

Rainmaker's 2006 revenue was $48.9 million, an increase of 338% from 2002.

"Being named a Deloitte Technology Fast 50 Program award winner is a tremendous honor for us," said Michael Silton, Rainmaker's CEO. "This prestigious award is a testament to our long-term partnerships with our clients and the value we add through our unique, fully-integrated combination of hosted technology, data and expertise. We look forward to continuing to develop and deploy innovative solutions as we grow our business in the years ahead."

"Deloitte's Silicon Valley Technology Fast 50 companies have shown the strength, vision and tenacity to succeed in today's very competitive technology environment," said Mark Jensen, partner and national director, Venture Capital Services, Deloitte & Touche LLP. "We applaud the successes of Rainmaker and acknowledge it as one of the very few to accomplish such a fast growth rate over the past five years."

To qualify for the Silicon Valley, Technology Fast 50 award, companies must have had operating revenues of at least $50,000 in 2002 and $5,000,000 in 2006, be headquartered in Silicon Valley, and be a company that owns proprietary technology or proprietary intellectual property that contributes to a significant portion of the company's operating revenues; or devotes a significant proportion of revenues to the research and development of technology. Using other companies' technology or intellectual property in a unique way does not qualify.

Companies from the 16 regional Technology Fast 50 programs in the United States and Canada are automatically entered in Deloitte's Technology Fast 500 program, which ranks North America's top 500 fastest growing technology, media, telecommunications and life sciences companies. For more information on Deloitte's Technology Fast 50 or Technology Fast 500 programs, visit www.fast500.com.

About Rainmaker
Rainmaker Systems, Inc. delivers sales and marketing solutions, combining hosted application software and execution services designed to drive more revenue for our clients. Our Revenue Delivery Platform^SM combines proprietary, on-demand application software and advanced analytics with specialized sales and marketing execution services. Rainmaker clients include large enterprises in a range of industries, including computer hardware and software, telecommunications, and financial services industries. For more information visit www.rmkr.com or call 800-631-1545.

NOTE: Rainmaker Systems, the Rainmaker logo, Sunset Direct and Contract Renewals Plus are registered with the U.S. Patent and Trademark Office. All other service marks or trademarks are the property of their respective owners.
 
This press release contains forward-looking statements regarding future events. These forward-looking statements are based on information available to Rainmaker as of this date and they assume no obligation to update any such forward-looking statements. These statements are not guarantees of future performance, and actual results could differ materially from current expectations. Among the important factors which could cause actual results to differ materially from those in the forward-looking statements are general market conditions, unfavorable economic conditions, our ability to execute our business strategy, our ability to integrate acquisitions without disruption to our business, the effectiveness of our sales team and approach, our ability to target, analyze and forecast the revenue to be derived from a client and the costs associated with providing services to that client, the date during the course of a calendar year that a new client is acquired, the length of the integration cycle for new clients and the timing of revenues and costs associated therewith, our client concentration given that we are currently dependent on a few significant client relationships, potential competition in the marketplace, the ability to retain and attract employees, market acceptance of our service programs and pricing options, our ability to maintain our existing technology platform and to deploy new technology, our ability to sign new clients and control expenses, the possibility of the discontinuation and/or realignment of some client relationships, and the financial condition of our clients businesses, and other factors detailed in the Company's filings with the Securities and Exchange Commission, including our filings on Forms 10-K and 10-Q.