| 2050 Partners |
2021 |
| AECOM |
2022 |
| AES Indiana |
2003 |
| AIQUEOUS |
2020 |
| Alliance to Save Energy |
2003 |
| AM Conservation Group |
2021 |
| Ameren Illinois |
2010 |
| American Council for an Energy-Efficient Economy (ACEEE) |
2000 |
| American Efficient |
2018 |
| Anura Energy |
2021 |
| Applied Energy Group |
2019 |
| APTIM |
2010 |
| ARCA Recycling, Inc. |
2007 |
| Argonne National Laboratory |
2011 |
| Association of Energy Engineers (AEE) |
2021 |
| BrightLine Group |
2019 |
| British Consulate - General Chicago |
2023 |
| Building Performance Association |
2022 |
| Cadmus |
2004 |
| Calico Energy |
2020 |
| Cascade Energy |
2017 |
| Celia Johnson Consulting |
2018 |
| Center for Energy and Environment |
2004 |
| CenterPoint Energy |
2004 |
| Chicago Bungalow Association |
2018 |
| Citizens Utility Board |
2011 |
| City of Chicago |
2004 |
| City of Cleveland |
2015 |
| City Utilities of Springfield, MO |
2015 |
| CLEAResult |
2013 |
| CMC Energy Services |
2018 |
| Combined Heat and Power Alliance |
2014 |
| ComEd |
2000 |
| Consumers Energy |
2010 |
| Cooperative Educational Service Agency 10 (CESA 10) |
2016 |
| Daikin North America LLC |
2019 |
| Diverse Power Solutions |
2023 |
| DNV |
2005 |
| DTE |
2009 |
| Duke Energy |
2006 |
| E Source |
2010 |
| East Kentucky Power Cooperative |
2012 |
| Edison Foundation Institute for Electric Innovation |
2009 |
| Elevate |
2017 |
| Emerson Commercial & Residential Solutions |
2019 |
| Energy Education Council |
2007 |
| Energy Federation, Inc. (EFI) |
2007 |
| Energy Resources Center at UIC |
2000 |
| Energy Sciences |
2020 |
| Energy Solutions |
2017 |
| Erthe Energy Solutions |
2018 |
| Evergreen Consulting Group |
2018 |
| Evergy |
2016 |
| Franklin Energy |
2008 |
| Fresh Energy |
2018 |
| Frontier Energy |
2017 |
| Fujitsu General America, Inc. |
2014 |
| Future Energy Enterprises, LLC |
2009 |
| GDS Associates |
2009 |
| Geothermal Alliance of Illinois |
2011 |
| Green Home Experts |
2014 |
| Group O, Inc. |
2018 |
| GTI Energy |
2017 |
| Guidehouse |
2003 |
| Home Performance Coalition |
2015 |
| ICF |
2000 |
| Illinois EPA |
2017 |
| ILLUME |
2018 |
| Indiana Office of Energy Development |
2014 |
| Integral Analytics |
2022 |
| Iowa Economic Development Authority |
2014 |
| JadeTrack |
2019 |
| Kandela, a Porch company |
2022 |
| Leidos |
2010 |
| Lennox Industries |
2018 |
| Louisville Gas & Electric Company and Kentucky Utilities (LGE KU) |
2012 |
| MaxLite |
2018 |
| Metropolitan Energy Center |
2020 |
| Michaels Energy |
2011 |
| Michigan Department of Environment, Great Lakes, and Energy |
2006 |
| Michigan Saves |
2018 |
| Mid-West Energy Research Consortium (M-WERC) |
2015 |
| MidAmerican Energy Company |
2006 |
| Minnesota Department of Commerce |
2000 |
| Minnesota Energy Resources Corporation |
2007 |
| Minnesota Power |
2014 |
| Missouri Botanical Garden's EarthWays Center |
2009 |
| Missouri Department of Natural Resources – Division of Energy |
2000 |
| Missouri Energy Initiative |
2014 |
| Mitsubishi Electric Trane HVAC US LLC |
2010 |
| Morgan Marketing Partners |
2010 |
| Mountain Association |
2016 |
| Mulder Consulting, LLC |
2021 |
| National Energy Foundation |
2015 |
| National Energy Improvement Fund, LLC |
2023 |
| Nebraska Energy Office |
2014 |
| Nest |
2015 |
| Nicor Gas |
2012 |
| NMR Group, Inc. |
2018 |
| North Shore Gas |
2010 |
| Northwest Energy Efficiency Council (NEEC) |
2008 |
| NTC |
2014 |
| Office of Energy Policy, Division of Energy Assistance for the Kentucky Energy and Environment Cabinet |
2014 |
| Opinion Dynamics |
2008 |
| Oracle Utilities |
2010 |
| Owens Corning |
2020 |
| PACENation |
2018 |
| Pearl Certification |
2018 |
| Peoples Gas |
2010 |
| Peoria Guild of Black Artists |
2023 |
| Performance Systems Development (PSD) |
2018 |
| Philips Lighting |
2012 |
| Polyisocyanurate Insulation Manufacturers Association |
2020 |
| Power TakeOff, Inc. |
2017 |
| Resource Innovation Institute |
2019 |
| Resource Innovations |
2016 |
| Rheem Manufacturing |
2019 |
| Savant Power |
2021 |
| Savant Systems, Inc. |
2021 |
| SEMCO ENERGY Gas Company |
2014 |
| Senior Services Plus, Inc. |
2023 |
| Shelton Solutions, Inc. |
2023 |
| Skill Demand Energy |
2021 |
| Slipstream |
2019 |
| SM Engineering |
2021 |
| Smart Energy Consumer Collaborative |
2017 |
| Sodexo |
2017 |
| Solutions for Energy Efficient Logistics, LLC (SEEL) |
2012 |
| South Dakota Bureau of Administration, Energy Management Office |
2014 |
| Southern Minnesota Municipal Power Agency |
2004 |
| Spire |
2018 |
| Staples Energy |
2008 |
| Tango Card, Inc. |
2023 |
| Technical Consumer Products, Inc. |
2005 |
| The Climate Registry |
2015 |
| The DesignLights Consortium |
2018 |
| The JPI Group LLC |
2023 |
| Threshold |
2017 |
| Trane Technologies |
2017 |
| TRC |
2009 |
| Uplight |
2019 |
| Upper Peninsula Power Company |
2019 |
| Utility Energy Services |
2021 |
| Utilivate Technologies, LLC |
2020 |
| VEIC |
2015 |
| Verdatek Solutions LLC |
2020 |
| Village of Oak Park |
2018 |
| Walker-Miller Energy Services |
2019 |
| Waypoint |
2017 |
| We Energies |
2019 |
| West Virginia Office of Energy |
2017 |
| Willdan |
2001 |
| Wisconsin Office of Energy Innovation |
2014 |
| Wisconsin Public Service |
2019 |
| WPPI Energy |
2018 |
| Xcel Energy |
2000 |
