| 3M |
| 3M ESPE |
| Aaxeon Technologies |
| ABB |
| ABB |
| Accurate Measurement Systems, Inc. |
| Advanced Integrated Solutions |
| Advanced Process Services |
| Advanced Service Solutions |
| Aera Energy LLC |
| AES Global |
| AF |
| AKM Consulting Engineers |
| AKM Consulting Engineers |
| Allmetal Manufacturing and Engineering |
| Alpha Wireless Automation |
| Amgen Inc |
| APG Analyzer Systems |
| Applied Metering Technologies, Inc. |
| Applied Technology Group, Inc. |
| ASD Automation |
| ATL |
| B Braun Medical Inc |
| Bachem Inc. |
| Basenine Consulting |
| Baxter |
| Baxter Bioscience |
| Bbraun Medical, Inc. |
| Beckhoff Automation |
| Beijer Electronics, Inc. |
| Belden |
| Brenner Fielder |
| Cal Poly Pomona |
| California State Polytechnic University Pomona |
| California Steel Industries |
| Caltrol, Inc |
| Cameron Measurement Systems |
| Carollo Engineer |
| Cemtek Environmental |
| CH Engineering, Inc. |
| Chevron |
| Chevron Products Co. |
| City of Escondido |
| City of Lomita |
| City of Los Angeles |
| City of Los Angeles DWP |
| City of Los Angeles/ HTP |
| City of Newport Beach |
| City of Riverside |
| City of South Gate |
| City Of Ventura, Water |
| CMC Americas |
| ConocoPhillips |
| ConocoPhillips Pipeline Company |
| Control Engineering Inc |
| Control Microsystems |
| Control Room Group AVI - SPL |
| Control Systems Inc. |
| Controls & Computer Technology Inc. |
| Cosmodyne |
| cpSphere |
| Criterion Automation, Inc. |
| CS-Integration |
| CSU Long Beach/CSU Pomona |
| DCD Company, Inc. |
| Digi International |
| DK/Amans Valve Supply |
| Edison |
| EED |
| Electrical Systems Ltd. |
| Enterprise Automation |
| et Recruiting |
| FANUC Robotics America |
| Fillo Sales Co. LLC |
| Fluidic Systems |
| FluidIQS |
| Fluor Corporation |
| Fluor Enterprise |
| GE Digital Energy MDS |
| Gencon |
| Georg Fischer Signet |
| Gerstung Aerosol |
| GF Signet |
| GM Enterprises |
| H2scan Corp. |
| Halcyon Electric, Inc |
| Hamilto Sundstrand |
| Hinz |
| Honeywell |
| HONEYWELL |
| HRL Labs |
| HUGO M. BERTA |
| Hyperion Treatment Plant, City of Los |
| IET Electric |
| IF Control Systems |
| IMG, Inc |
| InduSoft LLC |
| Industrial Automation Group |
| Industrial Networking Solutions |
| INEOS Olefins & Polymers, Carson Polypropylene |
| Instrument Controls Systems |
| Intelisea |
| InterACT |
| Interface Associates |
| Invensys/Wonderware |
| ITT Neo-Dyn / Conoflow |
| Jacobs |
| JPR Systems |
| J-Q Corporation |
| JRLectronics |
| Keller Williams |
| KELLY ENGINEERING |
| Kimberly Clark |
| KRACO Enterprises, LLC |
| Kyocera Solar, Inc. |
| Kyocera Solar, Inc. |
| L.A. Valves & Automation Inc. |
| LA County Sanitation Districts |
| LA Valves and Automation |
| LACSD |
| LADWP |
| Lehigh Cement |
| Los Angeles County Waterworks |
| Los Angeles Department of Water & Power |
| Los Angeles Dept. of Water & Power |
| Lubricasting Specialties Co. |
| MAGUILAND TRADE INC |
| Mangan, Inc. |
| March Plasma Systems |
| MatrikonOPC |
| Maverick Technologies |
| McJukin Red Man |
| Measurement Control Systems |
| Meggitt Safety Systems |
| Mercury Instruments |
| Metro. Water Dist. of S. Cal. |
| Metropolitan Water District of Southern California |
| Minarik/Southwest |
| Mitsubishi Automation |
| Mitsubishi Electric |
| MK Battery / Deka Unigy |
| Moore Industries |
| Motoronics |
| MOXA |
| Moxa |
| Moxa |
| Moxa Americas, Inc. |
| NEWTECH Resources |
| Oakley, Inc. |
| Oakley, Inc. |
| OE, INC. |
| Olivenhain Municipal Water District |
| OMNI International |
| One Source Distributors |
| Oneil Technologies |
| Orange Coast College |
| Orange County Fire Authority |
| Orange County Sanitation District |
| Pacific Coast Automation, Inc. |
| Pacific Process Systems, Inc |
| Paramount Petroleum |
| Patten Systems, Inc. |
| Phoenix Contact |
| Pilz Automation Safety L.P. |
| Pipeline Software, Inc. |
| Pod Technologies |
| Ponton Industries |
| Praxair |
| Precision Instrumentation Co. |
| Prime Wheel |
| Proctek of California |
| Protech Technologies |
| Pure Automation |
| Quantum Automation |
| RADCO |
| Rio Tinto Minerals |
| RK Controls |
| Rochem Membrane Systems, Inc. |
| SDBC |
| Servomex |
| Siemens Energy, Inc. |
| Sierra Monitor Corp |
| Solar Turbines Inc |
| Solid State Devices, Inc. |
| Southern California Edison Company |
| Southern California Gas Company |
| Spark of Imagination, Inc. |
| Specialize Dairy Service, Inc. |
| SS Innovations |
| Steven Engineering, Inc. |
| Sun Energy, Inc. |
| Sun Engineering Services |
| System Automation and Maintenance Engineering |
| Systems Integrated |
| Technical Heaters, Inc. |
| TechRep Components |
| Telco Electric |
| Tesco Controls |
| The Valve Shop |
| Tim-co/Cal RF |
| TNT Industrial Supply |
| TransRobotics |
| Trimax Systems, Inc |
| TSC Safety |
| TSC Safety |
| UCLA Anderson |
| Uniloc |
| University of California, San Diego |
| Valve & Automation Solutions |
| Victor Valley Wastewater RA |
| Virgin Automation |
| VVWRA |
| WaterHammer Inc |
| WESCO Distribution Inc |
| West Control Solutions |
| Western Municipal Water District |
| Western Power Systems |
| Western Switches & Controls, Inc. |
| WHA Systems |
| Wilson |
| WTCS |
| Wunderlich-Malec Engineering |
| Xyntek, Inc. |
| Yorba Linda Water District |
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