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 Annual Backflow Certification & Repair | Official tester entry carried on both Tucson and Marana public tester lists. | Officially listed across Tucson-area utility tester lists. | 2026-04-05 |
| Backflow Prevention Specialties | Official Tucson tester list entry | Officially listed on the Tucson tester PDF | 2026-04-04 |
| Tucson Backflow Testing | Official Tucson tester list entry | Officially listed on the Tucson tester PDF | 2026-04-04 |