STAMPS.COM’S ENTERPRISE PC POSTAGE SOFTWARE NAMED TO THE SUPPLY & DEMAND CHAIN EXECUTIVE 100

Stamps.com Enterprise Software Is Selected From Among 250 Candidates

LOS ANGELES – July 13, 2009 – Stamps.com® (Nasdaq:STMP), the leading provider of postage online and shipping software solutions to approximately 400,000 customers, today announced that its Enterprise PC Postage® solution has been named to the prestigious Supply & Demand Executive 100. This honor recognizes excellence in transforming companies’ supply and demand chains, streamlining customer processes, delivering consistent service quality, and enabling organizational growth.

Supply & Demand Chain Executive Magazine commented on the award by stating, “The 2009 Supply & Demand Chain Executive 100 are supply chain solutions and service providers that are helping their customers and clients both respond to the downturn and, more importantly, position themselves for growth ahead. Our goal with the ‘100’ is to highlight a broad range of solutions and services targeted at a variety of industries, addressing the needs of companies of varying sizes, and assisting in the transformation of the diverse mix of the functions that make up the supply chain.”

“Being named to the Supply & Demand Chain Executive 100 is a tremendous honor and a validation that we are providing our customers with the most valuable tools today,” said Stamps.com president and CEO Ken McBride. “Stamps.com has a long history of innovation within the mailing and shipping industry, and it is great to be recognized for our contributions towards reducing costs and streamlining processes in large organizations with our Enterprise software.”

About Supply & Demand Chain Executive

Supply & Demand Chain Executive is the executive’s user manual for successful supply and demand chain transformation, utilizing hard-hitting analysis, viewpoints and unbiased case studies to steer executives and supply management professionals through the complicated, yet critical, world of supply and demand chain enablement to gain competitive advantage. Supply & Demand Chain Executive is on the Web at www.SDCExec.com.

About Stamps.com

Stamps.com (Nasdaq: STMP) is a leading provider of Internet-based postage services. Stamps.com’s service enables small businesses, enterprises, advanced shippers, and consumers to print U.S. Postal Service-approved postage with just a PC, printer and Internet connection, right from their home or office. The Company currently has PC Postage partnerships with Avery Dennison, Microsoft, HP, the U.S. Postal Service and others.