| Wayne Marthaller Heating & Air 1300 E Main St (541)776-9828 | Groth-gates Heating & Sheet 218 Nw 12th St 5412658636 | W W Metal Fab 2200 Se Mailwell Dr 5035130590 |
| Design Systems 133 SW 2nd Ave # 304 (503)241-0615 | A-Ace Westside Appliance PO Box 1857 (503)649-9926 | Thermal Mechanical Inc 4548 N Albina Ave (503)282-6131 |
| Oregon Commercial Heating PO Box 1080 (503)829-9670 | Ballinger Refrigeration & Appliance 315 West 3rd Street (541)296-2422 | P & L Johnson Mechanical Inc 441 30th St (503)325-2180 |
| Smith Heating & Air Cond 13150 Clackamas River Dr 5032275550 | RS Heating 1123 Meadowview Ct (503) 657-4137 | Mountain House Heating & Cooling Po Box 447 (541)549-3423 |
| Madras Heating and Air Conditioning 1550 SW Highway 97 (541) 475-2200 | Douglas County Refrigeration 739 Curry Rd (541)672-7207 | Reliable Heating 27091 Old Holley Rd 5413678706 |
| Suzlon Wind Energy Corp 1001 Sw 5th Ave 5039463345 | American Heating Inc 5035 Se 24th Ave 5032394600 | Southern Oregon Engineering 4556 Cloudcrest Dr (541)776-2428 |
| Universal Hvac Inc 5033296183 | NW Natural - Water Heater Sales & Installations 309 East 2nd Street (541)296-2229 | Griffin Mechanical 1048 Pennoyer Ave (541)942-8339 |
| Skyline Sheet Metal 1535 Nw Sundial Rd # 100 5036691156 | Dependable Refrigeration 325 Tech Way (541)479-6535 | Kennedy Fuel 6868 Crater Lake Hwy (541)779-1515 |
| Larsell Mechanical Serv Inc 815 1st Ave E (541) 926-2321 | 72 Degrees Heating & Ac 18825 Willamette Dr 5036550556 | Pacific Air Comfort Heating & Air Conditioning 1440 NE Dee St (541) 440-0103 |
| Tecogen Tecochill Thermo Power 2245 NW 111th Ave (503)641-1768 | NW Natural - Water Heater Sales & Installations 309 East 2nd Street (541)296-2229 | Class A Heating & Cooling 27550 SE Highway 212 (503) 663-7114 |
| Plumbing And Mechanical Contractors 8600 Sw Saint Helens Dr 5036827919 | Advanced Entry Systems 1904 Southeast Ochoco Street (503)462-5200 | Boiler & Combustion Service Inc 9350 NE Halsey St (503) 256-5845 |
| M D Hunt Construction Po Box 617 (541) 544-2111 | Eagle Heating & A/C 1236 NE 160th Ave (503) 810-3019 | Air Quality Inc Po Box 2916 5036559022 |
| Kizer Sheet Metal PO Box 181 (503)472-2313 | Birchfield Heating & Air Conditioning Inc 3511 Pacific Boulevard Southwest (541)926-1374 | Neudorfer Engineers Inc 1500 NE Sandy Blvd # 1 (503)235-8924 |