| ABR Co. | Contractor (Nonresidential) |
| ACCO Engineered Systems | Contractor Association |
| Accutherm Refrigeration | Contractor (Nonresidential) |
| Ace Heating & Air Conditioning, Inc. | Contractor (Residential) |
| Action Air Conditioning, Heating & Solar | Contractor (Residential) |
| Action Duct Cleaning | Contractor (Nonresidential) |
| *Air Conditioning Contractors of America (ACCA) | Contractor Association |
| Air Conditioning Contractors of America (ACCA) - Arizona | Contractor Association |
| Air Conditioning Guys | Contractor (Residential) |
| Air Conditioning Trade Association (ACTA) | Contractor Association |
| Air Conditioning, Heating & Refrigeration NEWS | Media |
| Air Management Industries | Contractor (Nonresidential) |
| *Air-Conditioning, Heating, and Refrigeration Inst. (AHRI) | HVAC Manufacturer Association |
| *Aire Rite AC & Refrigeration | Contractor (Nonresidential) |
| Airsmiths Home Performance | Contractor (Residential) |
| AirTest Technologies | HVAC Manufacturer |
| Air-Tro | Contractor (Nonresidential) |
| All Pro Plumbing Heating & Air | Contractor (Nonresidential) |
| All Seasons Heating & Air Conditioning | Contractor (Residential) |
| AMCA International | Codes & Standards (Association or Jurisdiction) |
| American Commissioning Group, LLC | Third Party Quality Assurance Provider |
| American Mechanical Services (AMS) | Contractor (Nonresidential) |
| American Realty Advisors | Owner/Facility/Property Management Company |
| American Trainco, Inc. | Educator, Trainer |
| Amy Beley Consulting | Energy Efficiency Program Consultant |
| ASHRAE | Engineering Society |
| ASI Controls | HVAC Manufacturer |
| ASI Hastings Heating and A/C | Contractor (Residential) |
| AspenAir | HVAC Manufacturer |
| Barr Engineering | Contractor (Nonresidential) |
| Barrett Consulting Associates | Other Stakeholder |
| Bay Controls | Controls (Manufacturer or Distributor) |
| BELIMO Aircontrols, Inc. | Controls (Manufacturer or Distributor) |
| Bender Dean Engineering | Energy Efficiency Program Consultant |
| Benningfield Group | Energy Efficiency Program Consultant |
| Bes-Tech, Inc. | Controls (Manufacturer or Distributor) |
| Big Ass Solutions | HVAC Manufacturer |
| BJGustavson Consulting | Other Stakeholder |
| BMA Mechanical + | Other Stakeholder |
| BNB Consulting Services | Energy Efficiency Program Consultant |
| Bristol Compressors International | HVAC Manufacturer |
| Brody Pennell Heating, Air Conditioning and Electrical Contractors | Contractor (Residential) |
| Brownson Technical School | Educator, Trainer |
| Build It Green | Energy Efficiency Program Consultant |
| Building Performance Institute, Inc. | Certifying Body |
| BuildingMetrics, Inc. | Energy Efficiency Program Consultant |
| Cal Poly Pomona | Educator, Trainer |
| Cal SMACNA | Other Stakeholder |
| CalCERTS, Inc. | Certifying Body |
| *California Building Officials (CALBO) | Codes & Standards Official (Association or Jurisdiction) |
| California Commissioning Collaborative | Energy Efficiency Organization |
| California Community Colleges | Educator, Trainer |
| *California Energy Commission (CEC) | Government (Other Than CPUC) |
| California Homebuilding Foundation | Research Organization |
| California Living & Energy | Energy Efficiency Organization |
| *California Public Utilities Commission (CPUC) | CPUC |
| *Canoga Park Heating & Air Conditioning | Contractor (Nonresidential) |
| Carrier Corporation | HVAC Manufacturer |
| CDH Energy Corp. | Energy Efficiency Organization |
| CEES-Advisors | Energy Efficiency Program Consultant |
| Center for Sustainable Energy | Energy Efficiency Program Consultant |
| Charles F. Segerstrom, Energy Efficiency Consulting | Energy Efficiency Program Consultant |
| CHEERS | Certifying Body |
| City of Beaumont, CA | Codes & Standards (Association or Jurisdiction) |
| City of Clovis | Government (Other Than CPUC) |
| Clean & Green HVAC | Distributor |
| Clean Energy Horizons | Energy Efficiency Program Consultant |
| CLEAResult | Energy Efficiency Program Consultant |
| ClimaCheck Sweden AB | Controls (Manufacturer or Distributor) |
| Climate Pro Mechanical | Contractor (Nonresidential) |
| CLW Enterprises | Energy Efficiency Program Consultant |
| Comfort Advisors Energy Upgrades | Contractor (Residential) |
| Comfort Air, Inc. | Contractor (Nonresidential) |
| Comfort Climate Control, Inc. | Contractor (Residential) |
| Comfort Institute | Educator, Trainer |
| Comfy Heating & Air Conditioning Inc. | Contractor (Residential) |
| Conserva Alliance | Other Stakeholder |
| Contracting Business.com Magazine | Media |
| Contractors Are Us | Contractor Association |
| Contractors State License Board | Government (Other Than CPUC) |
| ContractorSelling.com | Educator, Trainer |
| Cooper Oates Air Conditioning | Contractor (Nonresidential) |
| County of Sonoma | Government (Other Than CPUC) |
| Creek Construction, Inc. | Contractor (Nonresidential) |
| Cumming Corporation | Energy Efficiency Program Consultants |
| DAGustavson Consulting | Energy Efficiency Program Consultants |
| Daikin Applied | HVAC Manufacturer |
| Danfoss | HVAC Manufacturer |
| Daniel Jones Consulting | Energy Efficiency Program Consultants |
| Davis Energy Group | Energy Efficiency Organization |
| Decision Analyst, Inc. | Other Stakeholder |
| Delivered Efficiency Opus | Other Stakeholder |
| Delmar, Cengage Learning | Educator, Trainer |
| Delocorp Heating and Air | Contractor (Residential) |
| Dial One Sonshine Plumbing, Heating & Air Conditioning | Contractor (Residential) |
| DNV GL Energy | Energy Efficiency Organization |
| DuctTesters, Inc. | Other Stakeholder |
| E3 NorCal | Energy Efficiency Program Consultant |
| EcoFactor | Energy Efficiency Organization |
| Ecology Action | Educator, Trainer |
| Efficiency First California | Contractor Association |
| *Efficiency Power | Other Stakeholder |
| El Camino College | Educator, Trainer |
| Electric & Gas Industries Association (EGIA) | Contractor Association |
| Electronic Power Research Institute | Energy Efficiency Organization |
| EMCOR Mesa Energy | Contractor (Nonresidential) |
| Emerson Climate Technologies | HVAC Manufacturer |
| Enalasys Corporation | Third Party Quality Assurance Provider |
| Encompass | Distributor |
| EnerGtech Experts | Energy Efficiency Program Consultants |
| Energuy | Third Party Quality Assurance Provider |
| Energy Analysis Technologies | Educator, Trainer |
| Energy Cloud Inc | Energy Efficiency Organization |
| Enpowered Solutions | Energy Efficiency Organization |
| EWC Controls | Controls (Manufacturer or Distributor) |
| Ezenics, Inc. | Other Stakeholder |
| FAMCO | HVAC Manufacturer |
| Ferguson Enterprises / AirCold Supply Division | Distributor |
| Field Diagnostic Services, Inc. | Third Party Quality Assurance Provider |
| Fieldpiece Instruments | HVAC Manufacturer |
| Galawish Consulting & Associates | Energy Efficiency Program Consultant |
| General Heating & Air Conditioning, Inc. | Contractor (Residential) |
| Goodheart-Willcox Publisher | Educator, Trainer |
| Goodman Manufacturing | HVAC Manufacturer |
| Green Link Mechanical | Contractor (Nonresidential) |
| Green Mechanical Council | Educator, Trainer |
| *Heating, Air Conditioning, and Refrigeration Distributors International (HARDI) | Distributor Association |
| Henry Bush Plumbing, Heating, Air Conditioning and Home Energy Solutions | Contractor (Residential) |
| HHEA (Healthy Home Environment Association) | Educator, Trainer |
| Home Energy Magazine | Media |
| Honeywell E&ES | Controls (Manufacturer or Distributor) |
| Honeywell Smart Energy | Energy Efficiency Program Consultant |
| HVAC Armor LLC | Other Stakeholder |
| HVAC Consulting Heating & Air Conditioning | Contractor (Nonresidential) |
| HVAC Excellence | Certifying Body |
| HVAC Rater Service | Third Party Quality Assurance Provider |
| HVACR Workforce Development Foundation | Research Organization |
| HVACRedu.net | Educator, Trainer |
| IAPMO | Codes & Standards Official (Association or Jurisdiction) |
| IC Refrigeration | Contractor (Nonresidential) |
| ICF International | Energy Efficiency Program Consultant |
| Indio Cooling & Heating Supply | Distributor |
| Indoor Environmental Services | Contractor (Nonresidential) |
| InfoPlast | Other Stakeholder |
| *Institute of Heating & Air Conditioning Industries (IHACI) | Contractor Association |
| Integrity Mechanical Systems | Contractor (Nonresidential) |
| International Code Council | Codes & Standards Official (Association or Jurisdiction) |
| International Council of Shopping Centers | Owner/Facility/Property Management Association |
| Irvine Company | Owner/Facility/Property Management Company |
| Irvine Valley College | Educator, Trainer |
| Jack in the Box | Owner/Facility/Property Management Company |
| Jane Coombs, CPA | Other Stakeholder |
| *JCEEP | Organized Labor |
| JD Design & Marketing | Other Stakeholder |
| JJATC Air Conditioning and Refrigeration | Educator, Trainer |
| Johnson Controls | HVAC Manufacturer |
| Joule Assets | Other Stakeholder |
| Kahn Air Conditioning, Inc. | Contractor (Residential) |
| Key Marketing Group, Inc. | Other Stakeholder |
| KGS Buildings, LLC | Other Stakeholder |
| Kilowatt Heating, Air Conditioning & Electrical | Contractor (Residential) |
| Lawrence Berkeley National Laboratory | Research Organization |
| *Lennox Industries | HVAC Manufacturer |
| Leucadia Energy Services, Inc. | Energy Efficiency Program Consultant |
| Lincus-Solaris | Energy Efficiency Program Consultant |
| London's Air Conditioning & Heating, Inc. | Contractor (Nonresidential) |
| Los Angeles Department of Water & Power | Publicly Owned Utility |
| Los Angeles Unified School District | Government (Other Than CPUC) |
| Lupson and Associates LLC | Other Stakeholder |
| Management Sciences, Inc. | Energy Efficiency Program Consultant |
| *Marina Mechanical | Contractor (Nonresidential) |
| Mark Bowman Consulting | Other Stakeholder |
| Mark Cherniack, Consultant | Energy Efficiency Program Consultant |
| MAS Service | Contractor (Nonresidential) |
| *Mechanical Air Service, Inc. | Contractor (Nonresidential) |
| Mechanical Systems Design & Consulting | Educator, Trainer |
| Misti Bruceri & Associates | Energy Efficiency Program Consultant |
| MountainLogic, Inc. | Controls (Manufacturer or Distributor) |
| Mt. San Antonio College | Educator, Trainer |
| Munters | HVAC Manufacturer |
| National Air Duct Cleaners Association (NADCA) | Contractor Association |
| *National Comfort Institute | Educator, Trainer |
| National Energy Management Institute (NEMI) | Educator, Trainer |
| National Environmental Balancing Bureau (NEBB) National | Certifying Body |
| *New Buildings Institute | Research Organization |
| NORESCO | Energy Efficiency Program Consultant |
| *North American Technician Excellence (NATE) | Certifying Body |
| North State Building Industry Foundation | Other Stakeholder |
| Northern California / Hawaii NEBB | Certifying Body |
| Northern California Valley Sheet Metal Workers Training Center | Educator, Trainer |
| Pacific Gas and Electric Company (PG&E) | California IOU |
| Pacific Rim Mechanical | Contractor (Nonresidential) |
| Pax-Sun Engineering, Inc. | Other Stakeholder |
| PECO Manufacturing, Inc. | Controls (Manufacturer or Distributor) |
| Pelican Wireless | HVAC Manufacturer |
| Pilgrim Consulting Services | Energy Efficiency Program Consultant |
| Pipe Trades Training Center | Educator, Trainer |
| PIPE Trust Fund | Educator, Trainer |
| Plumbing-Heating-Cooling Contractors | Contractor Association |
| PM Realty Group | Owner/Facility/Property Management Company |
| Proctor Engineering | Other Stakeholder |
| Purdue University | Research Organization |
| Quinn-Murphy Consulting LLC | Educator, Trainer |
| *Refrigeration Service Engineers Society (RSES) | Educator, Trainer |
| Refrigeration Supplies Distributor | Distributor |
| Research Products Corporation | HVAC Manufacturer |
| RESNET | Certifying Body |
| RESSAC Climate Control | Contractor (Nonresidential) |
| Rheem Manufacturing | HVAC Manufacturer |
| Richard Danks Consulting | Other Stakeholder |
| RL Consultants | Educator, Trainer |
| Roltay Inc. | Other Stakeholder |
| *San Diego Gas & Electric (SDG&E) | California IOU |
| San Diego State University | Educator, Trainer |
| Sanborn's West Coast Mechanical | Contractor (Residential) |
| Sawyer's Heating and Air | Contractor (Residential) |
| Sears Holding Corporation | Contractor (Residential) |
| Selby Energy | Educator, Trainer |
| Service All-Stars | Contractor (Nonresidential) |
| Service Roundtable | Contractor Association |
| ServiceWrkx | Contractor (Nonresidential) |
| ServTEC Air Conditioning | Contractor (Nonresidential) |
| Sheet Metal, Air, Rail and Transportation (SMART) Local #104 | Organized Labor |
| Sierra Building Science, Inc. | Educator, Trainer |
| Sigler Wholesale Distributors | Distributor |
| SMACNA - Los Angeles | Contractor Association |
| SMART Local #104 Bay Area SMACNA Training Fund | Educator, Trainer |
| SMART Local #162 | Organized Labor |
| Smith Heating & Air Conditioning, Inc. | Contractor (Residential) |
| *SMUD | Publicly Owned Utility |
| *Southern California Edison (SCE) | California IOU |
| *Southern California Gas Company (SoCalGas) | California IOU |
| Southwest Energy Efficiency Project | Educator, Trainer |
| Specialty A/C Products | Distributor |
| Superior Air | Contractor (Residential) |
| Swinerton Builders | Contractor (Nonresidential) |
| Synergy Companies | Energy Efficiency Program Consultant |
| SynergyNexGen | Educator, Trainer |
| Target | Owner/Facility/Property Management Company |
| Taylor Engineering | Other Stakeholder |
| The Utility Reform Network (TURN) | Other Stakeholder |
| Trane | HVAC Manufacturer |
| Transformative Wave | Controls (Manufacturer or Distributor) |
| TRC Solutions | Other Stakeholder |
| Tre'Laine Associates | Energy Efficiency Program Consultant |
| *TruTech Tools | Distributor |
| UC Berkeley Labor Center | Research Organization |
| UC Davis EEC (Energy Efficiency Center) | Research Organization |
| United Association, Southern California Pipe Trades, District Council 16 | Organized Labor |
| United Technologies Research Center (UTRC) | HVAC Manufacturer |
| University of Nebraska-Lincoln | Educator, Trainer |
| US Air Conditioning Distributors | Distributor |
| US EPA / Energy Star | Government (Other Than CPUC) |
| Valley College | Educator, Trainer |
| Valley Contractors Exchange | Contractor Association |
| Valley Mechanical Corp. | Energy Efficiency Organization |
| Verified, Inc. | Third Party Quality Assurance Provider |
| *Villara Building Systems (formerly Beutler Corporation) | Contractor (Nonresidential) |
| Warm Thoughts Communications | Other Stakeholder |
| *WCEC | Research Organization |
| Weiland Consulting-Training HVAC/R | Energy Efficiency Program Consultant |
| Western Allied Corporation | Contractor (Nonresidential) |
| Willdan Lighting and Electric | Energy Efficiency Program Consultant |
| *Williams Comfort | HVAC Manufacturer |
| XCSpec | Controls (Manufacturer or Distributor) |
| Xencom Systems, LLC | Contractor (Nonresidential) |
| Zodiac HVAC, Inc. | Contractor (Nonresidential) |
| ZONEFIRST | Controls (Manufacturer or Distributor) |