Rainmaker Expands Lead Development Solution for Global Enterprise
Data Solutions Provider

Extends Pilot Program to Year-Long Contract for Outsourced Sales and Marketing Services

Campbell, Calif. – June 30, 2008 – 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 signed a one year contract for outsourced sales and marketing services, extending and expanding its client relationship with a global leading provider of enterprise data software and solutions. The expanded contract is based on the success of an initial pilot program under which Rainmaker initially provided its lead development services for this Client.

The Client currently leverages Rainmaker’s lead development services to seamlessly extend the reach and effectiveness of its inside sales and marketing efforts. In the process, the Client has gained immediate access to Rainmaker’s experience to accelerate its time to revenue. As part of the agreement, Rainmaker will generate, qualify and develop sales-ready leads for the Client’s outside sales team to close, including all tradeshows, seminars, webinars and inbound web and chat inquiries.

Before selecting Rainmaker’s services, the Client followed a traditional sales model that required its inside sales team to identify and develop leads and convert them to prospects. Transitioning to Rainmaker’s outsourced solutions gives the Client a highly responsive, flexible and scalable inside sales team that has the proven ability to deliver higher conversion rates for sales leads and provide more VP level and senior decision-maker appointments per month.

"This new business agreement represents another strong endorsement of Rainmaker’s fully integrated combination of technology, data and expertise," said Michael Silton, Rainmaker’s CEO. "Our customers trust us to jumpstart their sales by reaching the right targets with the right message at the right time in the sales cycle."

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 PlatformSM 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.rainmakersystems.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.

CONTACT:
Steve Valenzuela
Chief Financial Officer
Rainmaker Systems, Inc.
(408) 626-2439
steve.valenzuela@rmkr.com
  Todd Kehrli or Jim Byers
Investor Relations
MKR Group, Inc.
(323) 468-2300
rmkr@mkr-group.com