Thursday, April 30, 2015

Tetra Tech Buys Cornerstone Environmental Group

Pasadena-based consulting and engineering firm Tetra Tech said Wednesday that it has acquired Cornerstone Environmental Group, a provider of environmental engineering and consulting firm focused on solid waste markets. Financial details of the buy were not disclosed. Cornerstone Environmental Group had approximately $30M in annual revenues, and 160 employees, according to Tetra Tech.

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