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Metering Service Providers

The following list of registered Metering Service Providers (MSP) are the only organizations authorized to undertake the registration of metering installations for operation in the wholesale electricity market.

Metering Service Providers must satisfy the requirements in the Market Rules, associated Manuals, and Procedures:

​​MSP No.Name of Organization​​Address​Name of ContactPhone No. Fax No.
​​MSP1001​CRU Solutions Inc.​180 Whiting Street
Ingersoll, ON
N5C 3B5
Jurgen van Dijken          


T: 519-485-6038
Ext 405
F: N/A
​MSP1002​Meter Services Peterborough Inc.​2245 Keene Road, P.O. Box 4125, Station Main,
Peterborough, ON
K9J 6Z5
​Terry McConnell


​T: 705-748-9301
Ext 1279
F: 705-743-5988
​MSP1003​Rodan Energy Solutions Inc.​165 Matheson Blvd. East, Suite 6
Mississauga, ON
L4Z 3K2
​Gary Nunes


​T: 905-625-9900
Ext 231
F: 905-625-4307
​MSP1004​Toronto Hydro-Electric System Ltd.​500 Commissioners St.
Toronto, ON
M4M  1B4
​Robert Cappadocia           


​T: 416-542-3478
F: N/A
​MSP1010​Hydro One Networks Inc. (MSP)​255 Matheson Boulevard West
Mississauga, ON
L5R 3G3

​Peter Mitskos

​T: 905-755-3808
F: 905-755-3803
​MSP1014​Hydro Ottawa Limited (MSP)​3025 Albion Road N
P.O. Box 8700
Ottawa, ON
K1G 3S4
Steve White


​T: 613-738-5499
Ext 147
F: 613-738-5499
Ext 7457
​MSP1015​Horizon Utilities Corporation​55 John St. North
Hamilton, ON
L8R 3M8
​Rob Henschel


​T: 905-317-4597
F: 905-522-8373
​MSP1016​Waterloo North Hydro Inc. (MSP)​526 Country Squire Road
P.O. Box 640
Waterloo, ON
N2J 4A3
​Herbert Haller


​T: 519-888-5568
F: 519-885-4524
​MSP1019Enwin Utilities Ltd.​​4545 Rhodes Drive
Windsor, ON
N9A 5T7
​Mark Pearce
​T: 519-251-7300
Ext 238
F: 519-251-7320
​MSP1022​PowerStream Inc. (MSP)​161 Cityview Boulevard
Vaughan, ON
L4H 0A9
​Eddie Augusto


​T: 905-532-4433
F: 905-532-4562
​MSP1023​Oshawa PUC Services Inc.​100 Simcoe Street South
Oshawa, ON
L1H 7M7
​Roger Ersil


​T: 905-723-4626
Ext 5242
F: 905-723-3248
​MSP1025​Thunder Bay Hydro Utility Services Inc.​37 Front Street
Thunder Bay, ON
P7A 8B2
​James Mann


​T: 807-343-1037
F: 807-343-1192
​MSP1026​Great Lakes Power Limited (MSP)​243 Industrial Park Crescent
Sault Ste. Marie, ON
P6B 5P3
​Jim Deluzio


​T: 705-256-4500
F: 705-256-4557
​MSP1031​N-Sci Technologies Inc.​633 Albert Street East, Sault Ste. Marie, ON P6A 2K5​Robert Reid


​T: 705-941-1199
F: 705-253-4350
​MSP1033​Horizon Energy Solutions Inc.​55 John St. North
Hamilton, ON
L8R 3M8
​Rob Henschel


T: 905-317-4597
F: 905-522-8373

​MSP1034​Essex Power Services Corporation​2199 Blackacre Drive,
Suite 2
Oldcastle, ON
N0R 1L0

​Sheldon Tracey


T: 519-946-2000
Ext 252
F: 1-866-291-5317

​MSP1035​Bluewater Power Distribution Corporation​855 Confederation St.  Sarnia, ON
N7T 7L6
​Mark Vanderheide

​T: 519-337-8201
Ext 2234
F: 519-332-3878



Inclusion of a metering service provider on this list confirms only that the metering service provider has been determined, in accordance with the registration process described in appropriate Market Rules and Market Manuals. IESO otherwise makes no, and expressly disclaims any, representation or warranty as to the character, financial integrity, relative quality or other attribute of a metering service provider included on this list.