| Meyer Sound |
| USS-POSCO Industries |
| LeeMAH Electronics, Inc. |
| The Staffing Solutions Group |
| Plastikon Industries |
| Anamet, inc. |
| Rolls-Royce |
| PCC Structurals |
| LLNL |
| United Airlines |
| Rolls-Royce Engine Services |
| Plethora |
| East Bay Municipal Utility District |
| Lawrence Livermore National Laboratory |
| Eby Construction |
| SFMTA |
| EASTBAY Works |
| Celestica |
| Analytical Scientific Instruments |
| NOR CAL METAL FABRICATORS |
| AB&I Foundry |
| KRA |
| Heat and Control |
| Delta Pacific Product |
| PepsiCo/Gatorade |
| Sweitzer Fixtures, LLC |
| Anheuser-Busch Fairfield Brewery |
| Inland Metal Technologies |
| EDWARD KOEHN CO., INC. |
| Emerald Packaging, Inc. |
| Coca-Cola |
| Bishop-Wisecarver Corporation |