Proofpoint Ranked 143 on Silicon Valley 2014 List of Top 150 Companies

April 21, 2014

SUNNYVALE, Calif. – April 21, 2014. Proofpoint, Inc., (NASDAQ: PFPT), a leading security-as-a-service provider, is ranked 143 on the 2014 Silicon Valley's Annual SV 150 list, which tallies the sales of the top Bay Area technology companies and reveals key trends in the region's booming technology industry. 

SiliconValley.com, backed by the San Jose Mercury News, issues this ranking annually and attributes Proofpoint's growth on the list this year to its enterprise offering, which hits two hot spots in the software sector, cloud and security. Because of the company's successful 2012 public offering and rapid growth in 2013, Proofpoint ranked within the top 150 for two years in a row.

Chief Executive Officer Gary Steele credits Proofpoint's overall success to its global security industry thought leadership and use of innovative cloud-based technologies to provide superior protection for customers. 

"We are constantly growing our business through strategic personnel hires, successful partnerships, and fine tuning our knowledge and expertise of the evolving threat landscape, all of which have contributed to our success in Silicon Valley," Steele said. "Targeted cyber-attacks represent a significant threat to businesses of all kinds, and our industry success can be attributed to the company's cutting edge technology and groundbreaking research efforts. We are honored to be recognized alongside other exceptional companies on the SV 150 list this year."

For more information regarding the list, please click on this link: http://www.siliconvalley.com/SV150/ci_25548370/

About Proofpoint, Inc.
Proofpoint Inc. (NASDAQ:PFPT) is a leading security-as-a-service provider that focuses on cloud-based solutions for threat protection, compliance, archiving and governance, and secure communications. Organizations around the world depend on Proofpoint's expertise, patented technologies and on-demand delivery system to protect against phishing, malware and spam, safeguard privacy, encrypt sensitive information, and archive and govern messages and critical enterprise information. More information is available at www.proofpoint.com

### 

Proofpoint is a trademark of Proofpoint, Inc. in the U.S. and other countries. All other trademarks contained herein are the property of their respective owners.