| # | Company name | Role | # of Projects |
|---|---|---|---|
| 1 | Acome | electrical connections | 0 |
| 2 | Adkins Electric, Inc. | electrical connections | 7 |
| 3 | Advanced Support Products, Inc. | electrical connections | 0 |
| 4 | AFC Cable Systems | electrical connections | 1 |
| 5 | Alfred Jensen | electrical connections | 1 |
| 6 | AMP Inc. | electrical connections | 0 |
| 7 | Asco Power Technologies, LP | electrical connections | 0 |
| 8 | Bagby and Russell Electric, Inc. | electrical connections | 1 |
| 9 | Bagby Elevator & Electric Co. | electrical connections | 1 |
| 10 | Brandstetter Schlüsseldienst | electrical connections | 1 |
| 11 | Carolina Products Inc. | electrical connections | 0 |
| 12 | Commercial Light Company | electrical connections | 10 |
| 13 | dhEnergy GmbH | electrical connections | 1 |
| 14 | EDA Elektro Data AS | electrical connections | 5 |
| 15 | Elecnor, S.A. | electrical connections | 0 |
| 16 | Elektroproduktion AB | electrical connections | 2 |
| 17 | Eltecno i Vellinge AB | electrical connections | 4 |
| 18 | Enertec GmbH | electrical connections | 1 |
| 19 | Fränkische Rohrwerke Gebr. Kirchner GmbH & Co. KG | electrical connections | 0 |
| 20 | Gerson Electric Construction Co. | electrical connections | 0 |