| Business | Phone |
| Custom Perspectives R & D Inc 6915 Adaridge Dr Se, Ada 49301 | (616) 682-2785 |
| Vantage Group Po Box 647, Ada 49301 | (616) 301-8081 |
| Ryan Marketing Group 574 Ada Dr Se, Ada 49301 | (616) 676-3325 |
| Access Business Group Llc 7575 Fulton St E, Ada 49355 | (616) 787-3000 |