| Business | Phone |
| Jamark Laboratories 4477 E Paris Ave Se, Grand Rapids 49512 | (616) 971-3204 |
| Van Andel Institute 333 Bostwick Ave Ne, Grand Rapids 49503 | (616) 234-5000 |
| Safety Tex Products 1050 Keneberry Way Se, Grand Rapids 49506 | (616) 949-6815 |
| Research & Technology Inst 301 Fulton St W, Grand Rapids 49504 | (616) 771-6800 |