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 major provider of high-end consulting and engineering services focused on water, environment, sustainable infrastructure, renewable energy, and international development challenges. The firm’s size and reach bring strength in its Leading with Science® approach to provide sustainable and resilient solutions. Its c27,000 employees have diverse expertise in science, research, engineering, and information technology

UK branch offices


Global group staff 27,000
Global environmental services staff 25,750
Global environmental consulting staff 22,700
UK group staff 2,550
UK environmental services staff 2,400
UK environmental consulting staff 1,650
Work Area Details
  • 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