| Administrative Controls Management, Inc. |
Advanced Power |
| Aerial Hydraulic Repair, Inc. |
Altec Industries, Inc. |
| American Energy Services, Inc. |
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 |
Dig-It, Inc. |
| 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 |
Irby Utilities |
| Jennings Strouss & Salmon, PLC |
Juhl Energy, Inc. |
| 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 |
Nighthawk |
| Nokia |
Northland Securities |
| 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 |
