Pacific Southwest has performed work for a variety of clients including federal, state, and local governments, public utilities, private organizations, corporations, and individuals.

A partial list of clients is presented below:

FEDERAL AGENCIES
   Bureau of Land Management
   Federal Energy Regulatory Commission
   U.S. Air Force
   U.S. Army Corps of Engineers
   U.S. Environmental Protection Agency
   U.S. Fish & Wildlife Service
   U.S. Forest Service
   U.S. Navy

STATE GOVERNMENT AGENCIES
   California Department of Fish & Game
   California Department of Transportation
   California State Coastal Commission
   California State Parks and Recreation
   California Coastal Conservancy

EDUCATIONAL INSTITUTIONS
   University of California, Riverside
   University of California, San Diego

CONSERVATION ORGANIZATIONS
   American Plant Life Society
   California Native Plant Society
   Environmental Land Solutions
   The Environmental Trust
   Southwest Wetlands Interpretive Association
   The Wildlands Conservancy

INDUSTRY
   Chilcote, Inc.
   Colucci Brothers Construction
   Daley Corporation
   Dixieline Lumber
   Fargo Industries
   Golf Horizons, Inc.
   Granite Construction Co.
   H.G. Fenton Material Co.
   Kaiser Resources, Inc.
   Nelson & Sloan
   PCL Civil Constructors, Inc.
   Price Company
   The Prudential Company
   RCP Block & Brick
   R.E. Hazard
   Science Applications International Corporation
   Sea World of California
   Signs and Pinnick, Inc.
   Unocal
   Waxie

LEGAL FIRMS
   Best, Best & Krieger
   Luce, Forward, Hamilton & Scripps
   Peterson & Price
   Seltzer, Caplan, Wilkens & McMahon
   Law Offices of Louis E. Goebel

DEVELOPMENT COMPANIES
   Baker Ranch Properties
   Barratt American
   Coto de Caza, Ltd.
   Elfend and Associates
   El Camino Properties
   Expo Development Company, LLC.
   Gatlin Development Co.
   Garratt Group, LLC
   Gateway Ivey Ranch Associates
   Hallmark Communities
   Kaufman & Broad
   Landmark Land Co.
   Los Alisos Development Co.
   McMillin Companies
   Morrison Homes
   Newport National
   Newport Dunes Partnership
   Ohrmund Land Co.
   Palmtag Davis Communities
   Patrick Development
   Peppertree Park, LLP.
   Poway Land Co.
   Reynolds Communities, Inc.
   Shea Homes, LLP.
   Sunroad Enterprises
   Stone Gate Development
   Twin Development
   W. Wolf Industries
   Vintage Communities
   Warmington Reynolds Development Company

LOCAL GOVERNMENT AGENCIES
   Campo Indian Reservation
   Cuyapaipe Indian Reservation
   County of San Diego
   County of San Bernardino
   County of Orange
   County of Riverside
   San Diego Unified Port District
   Western Riverside Council of Governments
   City of Big Bear  
   City of Chula Vista
   City of Encinitas
   City of Escondido
   City of Imperial Beach
   City of Laguna Niguel
   City of National City
   City of Oceanside
   City of Poway
   City of Riverside
   City of San Bernardino
   City of San Diego
   City of San Jacinto
   City of Solana Beach
   City of Temecula
   City of Vista
   San Dieguito River Park Joint Powers Authority

PUBLIC UTILITIES
   Arizona Public Service
   Cal-American Water District
   Crestline Water District
   Eastern Municipal Water District
   Kinder Morgan Energy Partners, L.P. (formerly Santa Fe Pacific Pipeline Partners, Ltd.)
   Lake Arrowhead Community Services District
   Metropolitan Water District of Southern California
   Otay Water District
   Padre Dam Municipal Water District
   Rainbow Municipal Water District
   Rancho California Water District
   Rancho Water District
   Riverside Utilities Department
   San Diego Clean Water Program
   San Diego County Water Authority
   Sempra Energy (formerly San Diego Gas & Electric Company)
   Salt River Project
   San Diego Pipeline Company
   San Diego Water Utilities Department
   Southern California Edison Company
   Sweetwater Authority
   Western Municipal Water District
   Vallecitos Water District
   Vista Irrigation District

ENVIRONMENTAL PLANNING AND ENGINEERING FIRMS
   A. D. Hinshaw & Associates
   Albert A. Webb Associates
   Algert Engineering
   Aqua Terra Engineering
   Black & Veatch
   Boyle Engineering
   Burkett and Wong Engineers
   Chisolm Land Planning
   Coleman Planning Group
   Cotton/Beland/Associates
   Cooper Engineering
   Crew Engineering
   Culbertson, Adams & Associates
   Curtis Scott Englehorn & Associates
   Douglas Wood & Associates
   The Elliott Group
   Enviromine
   Environmental Perspectives
   Galvin Cristilli Architects
   Graves Engineering
   Greiner Engineering
   Group Delta
   Helix Environmental
   J.F. Davidson
   Katagi Environmental Consulting
   Kawasaki, Theilacher, Ueno & Associates
   KEA Environmental
   The Keith Companies
   Keller Environmental Associates
   La Costa Engineering
   Land Planning Consultants
   LSA Associates, Inc.
   Masson Associates
   Moffat & Nichol Engineers
   NBS Lowry
   P & D Consultants
   Pacific Engineering
   Parsons Engineering-Science
   Parsons Brinckerhoff
   Paxton Engineering
   Philip Williams & Associates
   Phillips, Brandt, Reddick
   Piro Engineering
   The Planning Network
   Potter & Associates
   RBF/Sholders & Sanford
   RECON
   Ricci Engineering
   Rick Engineering
   Robert Bein, William Frost & Associates
   San Dieguito Engineering
   Schmidt Design
   Site Design Associates
   SJM Biological Consultants
   Smith, Peroni & Fox
   Snipes-Dye Associates
   Stevens Planning Group
   TRS Consultants
   Tierra Madre Consultants, Inc.
   Tri-Dimensional Engineering
   Ultrasystems Environmental, Inc.
   Urban Design Group
   Wallace, Roberts & Todd
   Willdan Associates
   Woodward-Clyde Associates
   Wunderlin Engineering
   Yvonne Neal Associates
   Zucker Systems

Key Biologists

Douglas W. Allen
R. Mitchel Beauchamp
Cornelius W. Bouscaren
Eric Dugan
Michael U. Evans
Christopher M. Rodriguez
Geoffrey Rogers