3TIER included on separate lists from

Deloitte and Puget Sound Business Journal

3TIER®, a global leader in renewable energy information services, today announced its recognition by both Deloitte and the Puget Sound Business Journal in two separate lists that rank companies based on fiscal year revenue growth. This is the third consecutive year that the company has earned this distinction from the Puget Sound Business Journal, receiving a rank of 49th among the top “100 Fastest-Growing Private Companies” in Washington state. This is the first time 3TIER has been ranked on the Deloitte Technology Fast 500™.

“3TIER and the other 2010 Technology Fast 500™ winners forged ahead in a challenging economic environment to realize exceptional growth,” said Phil Asmundson, vice chairman and Deloitte’s US technology, media and telecommunications leader. “Deloitte commends 3TIER for this impressive accomplishment.”

Both rankings are based on fiscal year revenue growth. The Puget Sound Business Journal ranks Washington companies over the last 3 years. The Deloitte Technology Fast 500™, is an annual ranking of the fastest growing technology, media, telecommunications, life sciences and clean technology companies in North America. This year’s award winners were selected based on percentage of fiscal year revenue growth from 2005 to 2009. During the period from 2005-2009, 3TIER grew 366%.

Kenneth Westrick, 3TIER’s founder and CEO, credits successful international expansion and continued product innovation as the drivers behind the growth.

“Our international offices have built a strong reputation for 3TIER outside the US, and they have developed many key relationships which have really established us in the marketplace.” Westrick said, “This translates to increased sales revenue and market share. Our product development and delivery teams have also pushed forward aggressively to provide new offerings to serve the ever-changing renewable energy industry.”

For more than 10 years, 3TIER has helped clients make better decisions about their renewable energy investments. 3TIER uses its expertise about weather and climate to determine how both impact wind, solar and hydro energy resources at specific locations around the world.

3TIER’s suite of products work together to help clients pinpoint the best locations for renewable energy development, assess the long-term resource availability at a site to reduce risk and forecast actual energy production over multiple time periods to promote efficient energy integration. Additionally, 3TIER’s critical resource data often inform regional planning and policy as renewable energy accounts for an ever-greater percentage of the world’s energy production portfolio.

“3TIER has proved itself to be one of the fastest growing tech companies in North America, and we are proud to honor them as one of the 2010 Technology Fast 500™,” said Mark Jensen, managing partner, venture capital services, Deloitte & Touche LLP.

For additional detail on the Technology Fast 500™ including selection and qualifying criteria, visit www.fast500.com.