Cornerstone Environmental, A Tetra Tech Company, is an engineering consulting and field service firm dedicated to providing services to the solid waste industry and commercial, industrial, and agricultural clients throughout the nation.

The firm was founded in 2006 by industry leaders who have helped to develop and shape solid waste, energy, and environmental technologies over the past 30 years. The entire Cornerstone organization shares a common vision – to serve its clients with energy, integrity, and innovation.

Cornerstone’s staff is a team of professionals recognized nationally for their environmental expertise. Our mission is to provide the highest quality environmental, solid waste engineering, field service, construction management and professional services, from project conception to completion.