- Mc Bain Power Station
- Mc Caffrey Mcgovern Electric
- Mc Callum Enterprise I LTD
- Mc Cone Electric
- Mc Cone Electric Co-Op Inc
- Mc Cook Electric Co-Op Inc
- Mc Cook Public Power Dist Rea
- Mc Crowry Electric Co
- Mc Daniel's Electric
- Mc Donough Power Cooperative
- Mc Grath Light & Power
- Mc Gregor Light Plant
- Mc Henry Electric Inc
- Mc Kenna Electric Inc
- Mc Kenzie Electric Co-Op Inc
- Mc Kenzie Electric Coop Inc
- Mc Kenzie Electric Coop Inc
- Mc Kinney Electric Co
- Mc Laughlin Electric
- Mc Lean Electric Co-Op Inc
- Mc Lean Electric Coop
- Mc Lennan County Electrc Co-Op
- Mc Lennan County Electric Inc
- Mc Minnville Electric System
- Mc Naughton-Mc Kay Electric Co
- Mc Naughton-Mc Kay Electric Co
- Mckenzie Electric Cooperative
- Mdu Resources Group Inc
- Meade County RECC
- Meade County RECC General
- Meade County Rural Elec Corp
- MEAG Power
- Meag Power
- Mecklenberg Electric Co-Op
- Mecklenburg Electric Co-Op
- Mecklenburg Electric Co-Op
- Mecklenburg Electric Coop
- Mecklenburg Power Station
- Medina Electric Co-Op Inc
- Medina Electric Co-Op Inc
- Medina Electric Cooperative
- Medina Electric Cooperative
- Medina Electric Cooperative
- Medina Electric Cooperative
- Meeker Co-Op Light & Power
- Meeker Cooperative Light Assn
- Mehl Electric
- Member Services Dept
- Membership Corp Of America
- Menard Electric
- Mendota Biomass Power LTD
- Meridian Power Corp
- Merit Energy Co
- Merit Energy Co
- Meriwether Lewis Elec Co-Op
- Meriwether Lewis Elec Co-Op
- Meriwether Lewis Electric
- Meriwether Lewis Electric Coop
- Meriwether Lewis Electric Coop
- Merjo Electric Corp
- Merle's Electric Svc
- Merrimack Station
- Methuen Falls Hydroelectric Co
- Metlakatla Power & Light
- Metrius Electrical Svc
- Metro Electric Co
- Metro Electric Co
- Metro Electric Svc Inc
- Metrocrest Electric
- Metropolis Towers
- Miami-Cass COUNTY Remc
- Michael Alberico Electric Co
- Michael Cook Electric
- Michigan Electric Cooperative
- Michigan South Central Power
- Mid American Energy Co
- Mid American Energy Co
- Mid American Energy Gas
- Mid American Power
- Mid Atlantic Independent Power
- Mid Ohio Energy Co-Op Inc
- Mid South Electric
- Mid State Elec Co-Op Inc After
- Mid-Atlantic Electric
- Mid-Carolin Electric Co-Op
- Mid-Carolina Electric Co-Op
- Mid-Continent Power Co
- Mid-South Electric Co-Op Assn
- Mid-South Synergy
- Mid-Yellowstone Electric Co-Op
- Middle Georgia Electric
- Middle Georgia Electric Corp
- Middle Georgia Electric Corp
- Middle Kuskokwin Electric Coop
- Middle Tenn Electric Co-Op
- Middle Tenn Electric Co-Op
- Middle Tenn Electric Mbrshp
- Middle Tennessee Electric
- Middle Tennessee Electric Corp
- Middle Tennessee Electric Corp
- Middle Tennessee Electric Corp
- Middleboro Electric Station
- Middleboro Gas & Electric
- Middlesex Generating Co LLC
- Midland Electrical Corp
- Midohio Energy Cooperative
- Midstate Electric
- Midwest Electric
- Midwest Electric
- Midwest Electric Co-Op Inc
- Midwest Electric Inc
- Midwest Electric Membership
- Midwest Electric Membership Co
- Midwest Electric Membership Co
- Midwest Energy Cooperative
- Midwest Energy Cooperative
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Energy Inc
- Midwest Fluid Power Co Inc
- Midwest Generation
- Midwest Generation
- Midwest Hydro
- Midwest Iso
- Midwest Power For Gas Svc
- Midwest Power Systems
- Miesner Electric Co
- Milbrandt Electric
- MILFORD Power
- Mill Creek Hydro Project
- Mille Lacs Electric Coop
- Millenium Power
- Millenium Power Svc Inc
- Millennium Design & Consltng
- Millennium Power Svc Inc
- Miller Electric
- Miller Electric
- Miller Electric Co
- Miller Electric Co
- Miller Electric Co Inc
- Miller Hill Shop
- Miller Power & Hayes
- Milligan Electric Co
- Milton Hydro
- Mine Falls LTD Partnership
- Minfor Power Trane Systems
- Minn Valley Co-Op Light & Pwr
- Minnesota Methane
- Minnesota Methane
- Minnesota Methane
- Minnesota Methane
- Minnesota Methane LLC
- Minnesota Methane Partners
- Minnesota Mrthane
- Minnesota Power
- Minnesota Power
- Minnesota Power
- Minnesota Power
- Minnesota Power
- Minnesota Power
- Minnesota Power
- Minnesota Power
- Minnesota Power
- Minnesota Power
- Minnesota Power
- Minnesota Power Allete
- Minnesota Valley Electric
- Minnesota Valley Electric Coop
- Minnkota Power
- Minnkota Power Co-Op
- Minnkota Power Co-Op Inc
- Minnkota Power Cooperative Inc
- Minnkota Power Diesel Plant
- Miranda Corp
- Mirant
- Mirant Corp
- Mirant Corp
- Mirant Corp
- Mirant Corp
- Mirant Corp
- Mirant Corp
- Mirant Corp
- Mirant Corp
- Mirant Corp
- Mirant Kendall LLC
- Mirant Mid Atlantic Dip
- Mirant New York Inc
- Mirant New York Inc
- Mirant New York Inc
- Mirant Sugar Creek
- Mission Electric Co
- Mission Power House
- Mission Valley Power
- Mississippi County Electric
- Mississippi Power & Light Co
- Mississippi Power & Light Co
- Mississippi Power Co
- Mississippi Power Co
- Mississippi Power Co
- Mississippi Power Co
- Missoula Electric Coop
- Missoula Electric Coop
- Missoula Electric Coop
- Missoula Electrical Coop
- Missoula Electrical Coop
- Missoula Electrical Coop
- Missouri River Energy Svc
- Missouri Rural Electric Co-Op
- Mister Electric
- Mitchell Electric
- Mitchell Electric Corp
- Mitchell Electric Membership
- Mitchell Electric Membership
- MJF Electric
- MJM Electric Co-Op Inc
- MKD Electric
- MKD Electric
- MKS Electric Co
- Mlec
- Modern Concept Enterprises
- Modern Electric Co
- Modern Electric Co
- Modern Electric Co
- Modern Electric Water Co
- Modesto Irrigation District
- Mokena Sales
- Moltech Power Systems
- Moltech Power Systems
- Monhegan Power District
- Monroe City Energy Svc
- Monroe County Electric
- Monroe County Electric Power
- Montana-Dakota Utilities
- Montana-Dakota Utilities
- Montana-Dakota Utilities
- Montana-Dakota Utilities
- Montana-Dakota Utilities
- Montana-Dakota Utilities
- Montana-Dakota Utilities
- Montana-Dakota Utilities
- Montana-Dakota Utilities
- Montana-Dakota Utilities
- Montana-Dakota Utilities
- Monterey Power Co
- Moon Lake Electric
- Moon Lake Electric Assn Inc
- Moon Lake Electric Assn Inc
- Moon Lake Electric Assn Inc
- Moon Lake Electric Assn Inc
- Moonlight Electric Inc
- Moore Electric
- Moore Electric
- Mooreland Light Plant
- Mooresburg Utility District
- Moorhead Public Svc
- Mor-Gran-Sou Elec Co Op Inc
- Mor-Gran-Sou Electric Co-Op
- Mora San Miguel Electric
- Mora San Miguel Electric Co-Op
- Mora-San Miguel Electric Coop
- Mora-San Miquel Electric Coop
- Moreau Grand Electric
- Moreau-Grand Electric
- Moreau-Grand Electric
- Morgan County REA
- Morgan Electric
- Morin Electric
- Morningside Electric
- Morr Power Media
- Morr Power Media
- Morrisville Water & Light Dept
- Morse Electric Inc
- Mos Electric
- Mosbacher Power Group
- Mother's Energy Inc
- Motive Power Development
- Motor & Power Protection Systs
- Motor Technologies-Marathon
- Mount Horeb Electric Utility
- Mount Lassen Power
- Mount Lassen Power
- Mountain Electric Co-Op
- Mountain Electric Co-Op
- Mountain Electric Co-Op
- Mountain Parks Electric
- Mountain Parks Electric Inc
