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Company Profile


Cornerstone, 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. Founded 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.



Service Category:

Air Monitoring and Testing

Brownfields Redevelopment

Civil Engineering

Environmental Due Diligence

Environmental Engineering

Environmental Impact Statements

Environmental Management Systems

Geotechnical Engineering

GIS Services

Hazardous Waste Consulting

Permitting and Regulatory Compliance

Pollution Prevention and Control

Recycling Services

Renewable Energy Consulting

Site Assessment

Site Remediation

Stormwater Management

Wastewater Management