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 |
|---|---|---|---|
| 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 |
| 4 Peaks Fire Protection | Official Chandler approved testing company entry | Officially listed on the Chandler approved companies page | 2026-04-05 |
| AAA Backflow Testing & Repair LLC | Official Chandler approved testing company entry | Officially listed on the Chandler approved companies page | 2026-04-05 |