WOBURN, MA, Acquia, the leading provider of commercial solutions for Drupal, has completed a $15 million Series D financing round. Tenaya Capital joined the round, along with significant follow-on participation by existing investors Northbridge Venture Partners and Sigma Partners.

Acquia will use the additional funds to accelerate growth, expand internationally -- particularly in Europe, further invest in sales and marketing, and drive the adoption of Drupal-built websites across the globe. As a result of the new investment, Brian Paul, Managing Partner of Tenaya Capital, will join Acquia's board of directors.

"We are seeing rapid growth at Acquia globally as enterprise demand for social business, web content management and Drupal cloud solutions explodes and fuels our business," said Tom Erickson, CEO of Acquia. "We are grateful for the ongoing support of our investment partners Northbridge and Sigma and are thrilled to have Tenaya Capital join our efforts."

Acquia has made significant progress over the last 12 months growing revenue 225% year over year and tripling its customer base from 550 to more than 1,500 in an eight month period. Its client roster includes some of the world's leading organizations such as Twitter, Al Jazeera, Mercedes-Benz, Stanford University, Intuit, and US Department of Defense. Acquia grew its partner ecosystem from 220 to more than 260 within the last year, adding partners such as VML, Engine Yard, and Alfresco. More than 2% of all web sites in the world are built on Drupal.

"We have invested in Acquia because they possess a number of key ingredients for success -- a top notch management team, impressive market traction and momentum, and unparalleled expertise in a number of important areas including Drupal, social web, and the cloud. Acquia is bringing open source web content management to the enterprise," said Brian Paul, Tenaya Capital. "We believe Acquia is extremely well positioned to exploit a high growth market opportunity."

Acquia empowers enterprises with the open source Drupal social publishing system. Co-founded by Drupal's creator in 2008, Acquia helps customers manage their growth and scale their online properties with confidence. Acquia's products, cloud infrastructure, and support enable companies to realize the full power of Drupal while minimizing risk. For more information, please visit www.acquia.com or call 888-9-ACQUIA.