| Business | Phone |
| Portland Mechanical Contractor 2000 Se Hanna Harvester Dr, Portland 97222 | (503) 656-7400 |
| Triad Mechanical 2133 N Argyle St, Portland 97217 | (503) 289-9000 |
| Ap Enterprises 7806 Ne Airport Way, Portland 97218 | (503) 528-2815 |
| Thermal Mechanical Inc 4548 N Albina Ave, Portland 97217 | (503) 282-6131 |
| Total Mechanical Inc 2410 Se 10th Ave, Portland 97214 | (503) 239-8121 |
| Harder Mechanical Contrs Inc 2148 Ne M L King Blvd, Portland 97212 | (503) 281-1112 |
| Heathen Mechanical Llc 8900 Ne 4th Ave, Portland 97211 | (503) 283-2250 |
| Markman Inc 9955 Se Ash St, Portland 97216 | (503) 255-9923 |
| Mc Kinstry Co 12021 Ne Airport Way # G, Portland 97220 | (503) 331-0234 |
| Interstate Mechanical Inc 2609 Se 6th Ave, Portland 97202 | (503) 233-7171 |
| Island Mechanical Inc 2515 N Hayden Island Dr, Portland 97217 | (503) 285-8510 |
| Jrt Mechanical 1422 Sw 11th Ave, Portland 97201 | (503) 227-2933 |
| Howard Mechanical 7115 Sw Spruce St, Portland 97223 | (503) 892-8722 |