Clients

While clients may initially find themselves drawn to ERRG for our broad range of capabilities, they continue to rely on us for our responsiveness, resourcefulness and proven commitment to client service.

Federal

  • Bureau of Land Management
  • Environmental Protection Agency
  • Fairchild Air Force Base
  • National Park Service
  • Naval Facilities Engineering Command – Southwest Division
  • The Department of the Navy
  • United States Army Corps of Engineers
  • United States Coast Guard
  • United States Forest Service

State/Local

  • California Integrated Waste Management Board
  • California Department of Toxic Substances Control
  • City & County of San Francisco
  • County of San Bernardino
  • East Bay Municipal Utility District
  • Ross Valley Sanitation District
  • San Jose Water Company

Commercial

  • Abbott Laboratories
  • Aerojet
  • The Boeing Company
  • Lennar
  • PG&E
  • San Francisco International Airport
  • Sempra Energy
  • Southern California Edison
  • The Presidio Trust

Engineering Firms

  • AECOM
  • AMEC
  • Battelle
  • CH2M Hill
  • Ecology & Environment
  • Environmental Chemical Corporation
  • Environmental Quality Management
  • Fugro West, Inc.
  • Geomatrix
  • Golder Associates
  • Hart Crowser
  • MACTEC, Inc.
  • Malcolm Pirnie, Inc.
  • McWong Environmental & Energy Group
  • MWH
  • Parametrix
  • Parsons
  • SAIC
  • Shaw Environmental
  • STANTEC
  • Tesoro/Avon Remediation Team
  • Tetra Tech
  • TN and Associates
  • Treadwell & Rollo
  • URS Corporation