| Business | Phone |
| Concert Information 3300 E Beltline Ave Ne, Grand Rapids 49525 | (616) 361-5496 |
| Info Power 1515 Michigan St Ne, Grand Rapids 49503 | (616) 458-5775 |
| Voyager Information Network 250 Monroe Ave Nw, Grand Rapids 49503 | (616) 224-1400 |
| Tap Shoe Productions 355 Sheldon Blvd Se, Grand Rapids 49503 | (616) 831-0030 |
| Technology Alliances Corp 2705 Reeds Lake Blvd Se, Grand Rapids 49506 | (616) 949-6065 |