| Business | Phone |
| Michigan Consulting/Enviromntl 1669 S Isabella Rd, Mount Pleasant 48858 | (989) 772-2441 |
| Northern Property Svc 903 E Illinois St, Mount Pleasant 48858 | (989) 775-8456 |
| Prism Analytical Inc 1200 N Fancher Ave, Mount Pleasant 48858 | (989) 772-5088 |