| A-TEC Energy | 2011 |
| American Efficient | 2018 |
| Applied Energy Group | 2019 |
| Bidgely | 2018 |
| Bradford White Corporation | 2019 |
| Cadmus | 2004 |
| CLEAResult | 2013 |
| Daikin North America LLC | 2019 |
| DNV GL | 2005 |
| E Source | 2010 |
| Edison Foundation Institute for Electric Innovation | 2009 |
| Elevate Energy | 2017 |
| Emerson Commercial & Residential Solutions | 2019 |
| EMI Consulting | 2015 |
| Energy Education Council | 2007 |
| Energy Insight, Inc. | 2015 |
| Energy Management Solutions, Inc. | 2019 |
| Energy Solutions | 2017 |
| Evergreen Consulting Group | 2018 |
| Franklin Energy | 2008 |
| Fujitsu General America, Inc. | 2014 |
| Geothermal Exchange Organization (GEO) | 2014 |
| Greenlite | 2019 |
| Group O, Inc. | 2018 |
| Guidehouse | 2003 |
| Honeywell Smart Grid Solutions | 2014 |
| ICF | 2000 |
| ILLUME | 2018 |
| Itron, Inc. | 2009 |
| JadeTrack | 2019 |
| Lennox Industries | 2018 |
| Lime Energy | 2012 |
| MaxLite | 2018 |
| Mitsubishi Electric Trane HVAC US LLC | 2010 |
| Morgan Marketing Partners | 2010 |
| National Energy Foundation | 2015 |
| Nest | 2015 |
| Northwest Energy Efficiency Council (NEEC) | 2008 |
| NTC | 2014 |
| Opinion Dynamics | 2008 |
| Oracle Utilities | 2010 |
| Pearl Certification | 2018 |
| Performance Systems Development (PSD) | 2018 |
| Philips Lighting | 2012 |
| Polyisocyanurate Insulation Manufacturers Association | 2020 |
| Power TakeOff, Inc. | 2017 |
| Resource Action Programs | 2012 |
| Resource Innovations | 2016 |
| Sodexo | 2017 |
| Solutions for Energy Efficient Logistics, LLC (SEEL) | 2012 |
| Staples Energy | 2008 |
| Technical Consumer Products, Inc. | 2005 |
| The National Energy Improvement Fund (NEIF) | 2015 |
| Threshold | 2017 |
| Trane Technologies | 2017 |
| TRC | 2009 |
| Uplight | 2019 |
| Waypoint | 2017 |
| West Monroe Partners | 2014 |
