| Business | Phone |
| E-Lab 3352 128th Ave, Holland 49424 | (616) 399-6070 |
| Environmental Partners 305 Hoover Blvd 200, Holland 49423 | (616) 928-9130 |
| Est Testing Solutions 25 E Washington Ave, Holland 49423 | (616) 546-3902 |
| Liquid Industrial Waste Svc 11325 E Lakewood Blvd, Holland 49424 | (616) 396-5994 |
| Equity Resource Environmental 5792 143rd Ave A, Holland 49423 | (269) 751-6024 |