| Business | Phone |
| A C Klopf Inc 524 S Franklin St, Saginaw 48607 | (989) 754-0403 |
| Abc Plumbing & Heating 5672 Dixie Hwy, Saginaw 48601 | (989) 777-2263 |
| Advanced Heating & Ac 2134 Brockway St, Saginaw 48602 | (989) 790-9127 |
| Advantage Heating & Cooling 509 Maple St, Saginaw 48602 | (989) 799-7283 |
| G W Heating & Air Conditioning 1905 N Michigan Ave, Saginaw 48602 | (989) 753-8476 |
| Technical Building Alliance 3167 Enterprise Dr, Saginaw 48603 | (989) 797-3933 |
| Schark Heating & Cooling 5954 Swan Creek Rd, Saginaw 48609 | (989) 781-1480 |