| Administrative Controls Management, Inc. |
Advanced Power |
| Aerial Hydraulic Repair, Inc. |
Altec Industries, Inc. |
| American Energy Services, Inc. |
Anixter |
| AZCO Inc |
Baker Tilly |
| Barr Engineering Co. |
Barton Malow |
| Ben F. Thomas Sales Co. |
Bitlyft |
| Black & Veatch |
Border States |
| Century A&E |
The Christman Company |
| CityInsight |
Clarke Energy |
| Collaborative Learning |
Contract Land Staff |
| Commonwealth Associates, Inc. |
CPV Mason Road |
| Crossroads Mobile Maintenance |
CSI Utility Sales |
| CTC Engineering |
Dickinson Wright PLC |
| Eaton: Cooper Power Systems |
Electrical Resources Company |
| ELUS Company |
Emerald Transformer |
| Farabee Mechanical, Inc. |
Firmatek |
| Fishbeck |
Franklin Energy Services LLC |
| Fujitsu Network Communications |
GAR-NET Associates |
| GDS Associates |
Genics Inc. |
| Granger Construction Company |
GRP Engineering, Inc. |
| HDR |
HEK Inc |
| Hydaker-Wheatlake Company |
Jennings Strouss & Salmon, PLC |
| Juhl Energy, Inc. |
Irby Utilities |
| Karoub Associates |
Kent Power, Inc. |
| Kiewit Engineering Group Inc. |
KW Associates |
| Lawson-Fisher Associates, P.C. |
Marshall Energy Center |
| MC Power Companies |
Megger |
| Michigan Cat |
Michigan Electric Cooperative Association |
| Midwest Utility Sales |
Milwaukee Tool |
| Miron Construction |
Mitsubishi Hitachi Power Systems |
| MJ Electric, LLC |
mPower Innovations |
| Nelson Tree Service, Inc. |
NESCO Specialty Rentals |
| Newkirk Electric Associates |
Nokia |
| NTH Consultants, LTD |
Okonite Company |
| Origis Energy USA |
Osmose Utilities Services, Inc. |
| Power Line Supply |
PowerLink Electrical Sales |
| Power System Engineering, Inc. |
Premier Power Maintenance Corporation |
| Renewable World Energies, LLC |
RESCO |
| S & C Electric Co. |
Sargent & Lundy |
| Sawvel and Associates |
Sensus |
| Somes-Nick & Co. |
Spectrum Engineering Corporation |
| The SPE Group |
Spiegel & McDiarmid, LLP |
| SSOE Group |
Sunbelt Solomon Solutions |
| T&R Electric Supply Company |
Tech Products, INC. |
| Terex USA |
Theka Associates Engineering, Inc. |
| Total Electric Power Sales, Inc. |
Utilities Instrumentation Service |
| Utility Consulting Group, LLC |
Utility Financial Solutions |
| Utility Sales and Service |
Varnum Law Firm |
| Versalift Midwest, LLC |
Wartsila North America |
| Woodlyn Sales |
W.W. Williams |
