Terraphase Engineering Inc. Employee Directory
Environmental ServicesCalifornia, United States51-200 Employees
Terraphase Engineering Inc. is an environmental services firm that delivers cost-effective solutions for complex environmental and engineering challenges. The company emphasizes understanding client needs and works within regulatory frameworks to help projects reach their objectives. Its multidisciplinary team combines engineers, geologists, and scientists to support a comprehensive environmental management approach. The firm is based in Oakland, California. Terraphase has expanded its capabilities through strategic acquisitions, including Robinson Noble, Inc., which brought strengths in environmental characterization and remediation, as well as water resources, water rights, and geotechnical engineering. In 2025 the firm acquired Eolas Environmental, LLC, extending its presence into the Northeast with operations in Connecticut and Massachusetts.
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