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 |
|---|---|---|---|
| Air & Water Factor | Official tester listed by Phoenix and also carried on Mesa and Avondale utility rosters for the metro cluster. | Officially listed across multiple Phoenix-metro utility tester lists. | 2026-04-05 |
| American Backflow and Fire Prevention, Inc. | Official tester listed by Chandler and Mesa and also present on Scottsdale's utility tester roster. | Officially listed across multiple Phoenix-area utility tester lists. | 2026-04-05 |
| Next Protection | Official Mesa tester list entry | Officially listed on the Mesa tester PDF | 2026-04-04 |