| Business | Phone |
| Airtech Mechanical 4444 Monroe St, Toledo 43613 | (419) 292-0074 |
| Comech Inc 3820 Canada Southern Ave, Toledo 43612 | (419) 476-7171 |
| Dimech Services Inc 5505 Enterprise Blvd, Toledo 43612 | (419) 727-0111 |
| Dunbar Mechanical Inc 2444 Monroe St, Toledo 43620 | (419) 243-2868 |
| Dunbar Mechanical Inc 2806 N Reynolds Rd, Toledo 43615 | (419) 537-1900 |
| Shepherd Mechanical 5011 N Summit St, Toledo 43611 | (419) 726-2326 |
| Hank's Plumbing & Heating Co 6725 W Central Ave, Toledo 43617 | (419) 843-2224 |
| Reeder Mechanical Equipment Co 105 Broadway St, Toledo 43602 | (419) 244-8300 |
| Industrial Power Systems Inc 410 Ryder Rd, Toledo 43607 | (419) 531-3121 |