| Company | Location | Certifications | License # |
|---|---|---|---|
| Brian Karr | Vinton, IA | Inspector | 8907 |
| David Weber | Vinton, IA | Inspector | 11627 |
| Justin Hendryx | Mount Auburn, IA | Inspector | 7179 |
3 companies in the Iowa DNR Certified Onsite (Time-of-Transfer) Inspector List are based in Benton County as of 2026-07-23. Companies based elsewhere in Iowa also commonly serve the county.
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