Tetra Tech, Inc

Parent Company Tetra Tech, Inc
Contact Jim Wu
(Vice President, Corporate Finance and Treasurer)
3475 East Foothill Boulevard, Pasadena, 91107-6024, California, United States
Tel: (626) 470-2323
Company Background

Tetra Tech is a leading provider of high-end consulting and engineering services for projects worldwide. With 20,000 associates working together, Tetra Tech provides clear solutions to complex problems in water, environment, sustainable infrastructure, and renewable energy. We are Leading with Science® to provide sustainable and resilient solutions for our clients.

UK branch offices


International offices


Global group staff 21000
Global environmental services staff 20000
Global environmental consulting staff 17450
UK group staff 2550
UK environmental services staff 2400
UK environmental consulting staff 1650
Work Area Details

Environmental consultancy

  • Air quality
  • Climate change & energy
  • Contaminated site assessment/remediation
  • Ecological/wildlife services
  • Impact assessment
  • Environmental risk & due diligence
  • Environmental management & compliance
  • Environmental noise & vibration
  • Sustainability strategy & ESG
  • Waste management/circular economy
  • Water quality & resource management
  • Other services