| AEROSPACE | Western Summit | POWER/UTILITY |
| Aerojet | Yeager/Skanska | Bechtel |
| Boeing | Calpine | |
| JPL | MANUFACTURING | Duke Energy |
| Lockhead-Martin | Anheuser Busch | Fluor |
| Rocketdyne | Kimberly Clark | Los Angeles DWP |
| Rockwell | Miller Brewery | Southern California Edison |
| U.S. Air Force | National Molasses | Southern California Gas |
| Oroweat | Southern California MWD | |
| CHEMICAL | Proctor & Gamble | |
| Dow Chemical | Uniroyal | TRANSPORTATION |
| Liquid Carbonics | Caltrans | |
| Union Carbide | MARINE | |
| U.S. Borax | Evergreen Terminals | WATER PIPELINE |
| Port of Long Beach | MWD - Etiwanda | |
| CONRACTORS | Port of Los Angeles | SFPUC - San Joaquin |
| American Bridge | Port of San Diego | |
| Archer Western | SSA Terminals | WATER TREATMENT |
| Bechtel | U.S. Navy, Long Beach | Bakersfield, CA |
| Brinderson | U.S. Navy, San Diego | Chandler, AZ |
| CBI | Chino, CA | |
| CDM | OFFSHORE | Clark County, NV |
| Colich & Sons | Chevron | Las Vegas, CA |
| Connelly Pacific | Thums | Los Angeles, CA |
| Fluor | Monterey, CA | |
| Griffith | PETROLEUM | Morro Bay, CA |
| Jacobs Engineering |
ARCO-BP | Orange County SD, CA |
| Kiewit Infrastructure |
Chevron | Phoenix, AZ |
| Kiewit Power | Equilon | Riverside Regional, CA |
| McCarthy | Exxon/Mobil | San Jose, CA |
| Pacific Mechanical | Four Corners Pipe Line | San Luis Obispo, CA |
| Parsons | Mobil Pipe Line | Santa Barbara, CA |
| PCL Constructors | Occidental | Scottsdale, AZ |
| Rados, Steve P | ||
| Shea, JF | STRUCTURAL | |
| Sundt | FedEx | |
| Sletten | LA Hangers, CA | |
| Swinerton Builders | Petco Park, CA | |
| Tutor Saliba | Aloha Stadium, HI |
