- Aggreko
- ALTANOVA – a Doble Company
- Altec
- American Vulkan Corporation
- American Wire Group
- Antigua Power Company
- APS Power Solutions LLC
- Bermuda Electric Light Company
- BLU Energy
- Brook Up
- BRUSH Americas
- BWSC
- Caribbean Utilities Company, Limited
- CARILEC Renewable Energy Community
- Classic Controls, Inc.
- Copperweld® Brand Cables
- Domino Highvoltage
- Fiberglass Line Hardware Inc.
- FortisTCI
- Hatch Ltd
- Hendrix/Kerite
- IESCO
- Itron Inc
- Jamaica Public Service Company
- Kinectrics
- K-Line Insulators Limited
- Kokosing Industrial, Inc.
- Koppers Utility & Industrial Products Inc
- Landis+Gyr
- LED Roadway Lighting
- LVP Trading / SHELL LUBRICANTS
- Milsoft Utility Solutions
- Morgan Schaffer – a Doble Company
- MSHS
- Naftex Internacional
- National Renewable Energy Laboratory
- N.V. EnergieBedrijven Suriname
- OHM International Corporation
- Osmose Utilities Services Inc
- Paradoxe Corporation
- Public Utilities Commission
- Radian Research
- Rocky Mountain Institute (RMI)
- Schweitzer Engineering Laboratories
- Soteco International
- Tantalus Systems
- TE Connectivity
- TransTech Energy
- Turbo Systems US Inc
- Wartsila
- Web N.V