Official list entries
Authority-first tester table
Use the governing authority list first. Provider profiles and sponsor routing remain secondary to the official approval context.
| Full name | License notes | Company or label | Review date |
|---|---|---|---|
| #1 Backflow Pros | Official tester listed on Greeley's certified tester PDF and Fort Collins' certified tester page for the Northern Colorado corridor. | Officially listed across Greeley and Fort Collins tester rosters. | 2026-04-05 |
| AJ's Backflow Testing | Official tester listed on Greeley's certified tester PDF and Fort Collins' certified tester page for the Northern Colorado corridor. | Officially listed across Greeley and Fort Collins tester rosters. | 2026-04-05 |
| Fort Collins Backflow Service | Official Fort Collins certified backflow tester entry. | Officially listed on the Fort Collins certified tester page. | 2026-04-05 |