| Cochrane |
Gerry's Enterprises |
| Cochrane |
Polar Air |
| Dryden |
Superior Plumbing & Heating |
| Elliot Lake |
J P Martin Heating Ltd. |
| Kapuskasing |
L R Kennedy Heating |
| Keewatin |
Andy Morrell Mechanical Services Ltd. |
| Kenora |
Parkland Plumbing |
| Kenora |
R K Services |
| Kirkland Lake |
North Star (1984) |
| Lively |
North Shore Residential Plumbing & Heating |
| Mattawa |
Northern Energy Systems |
| Mindemoya |
Pro Gas Energy Services |
| New Liskeard |
Fern Breault Heating & Son |
| New Liskeard |
Packard Plumbing & Heating Ltd. |
| North Bay |
Dave's Heating & Cooling |
| North Bay |
Gerry's Heating |
| North Bay |
K R B Mechanical |
| North Bay |
Noll ClimateCare |
| Oxdrift |
Five Star Heating |
| Powassan |
Burnies Heating And Air Conditioning |
| Sault Ste Marie |
S & T Group |
| Sault Ste Marie |
Superior Home Comfort Ltd. |
| Sault Ste. Marie |
Blue Flame Gas Ltd. |
| Sault Ste. Marie |
Henderson Metal Fabricating Co. Ltd |
| Sault Ste. Marie |
Wardlaw Fuels (Algoma) Inc. |
| South Porcupine |
Tisdale Plumbing & Heating Ltd |
| Sudbury |
Campeau Heating, 1594655 Ontario Limited |
| Sudbury |
Castle Plumbing And Heating |
| Sudbury |
Nauss Plumbing & Heating Inc |
| Sudbury |
Northern Air & Mechanical Inc. |
| Sudbury |
Smania Plumbing, Heating & A/C |
| Sudbury |
Union Energy Inc. |
| Thornloe |
Comfort Heating & Air Cond |
| Thunder Bay |
ABC Gas Services |
| Thunder Bay |
All Temp Heating & Cooling Systems |
| Thunder Bay |
Buhler Mechanical Service Ltd. |
| Thunder Bay |
Excel Sheet Metal Lakehead Ltd. |
| Thunder Bay |
Prestige Home Comfort |
| Thunder Bay |
R H W Enterprises Co. Ltd. |
| Thunder Bay |
Robert's Plumbing & Sheet Metal Inc. |
| Thunder Bay |
Union Energy (North/Western Ontario) |
| Val Caron |
Independent Energy Services |
| Val Caron |
Marcel's Heating & Sheet Metal |
