Contractor Transparency Scorecard
Based on 925 contractor license records associated with Ontario, California, the active license rate is 95.0%.
Overall Grade
A+
Total
925
Active
879
95.0%
Expired
0
0.0%
46 additional records carry other statuses (revoked, pending, suspended, or unspecified).
| License Type | Total | Active | Active Rate | Grade |
|---|---|---|---|---|
| General Building | 229 | 217 | 94.8% | A |
| C10 | 79 | 75 | 94.9% | A |
| C33 | 39 | 37 | 94.9% | A |
| C36 | 30 | 29 | 96.7% | A+ |
| C20 | 29 | 29 | 100.0% | A+ |
| C27 | 21 | 19 | 90.5% | A |
| Low Voltage Systems | 21 | 21 | 100.0% | A+ |
| C39 | 20 | 20 | 100.0% | A+ |
| General Engineering | 18 | 18 | 100.0% | A+ |
| C15 | 17 | 15 | 88.2% | A- |
| Cabinet, Millwork & Finish Carpentry | 17 | 17 | 100.0% | A+ |
| Drywall | 13 | 12 | 92.3% | A |
| C17 | 12 | 10 | 83.3% | B+ |
| D28 | 12 | 10 | 83.3% | B+ |
| A| B | 11 | 11 | 100.0% | A+ |
This scorecard is based on the share of contractor license records tied to Ontario that are currently marked "Active" by the state licensing authority, compared against a fixed grading scale. It reflects public license status data only and is not a measure of workmanship or customer satisfaction.
Browse active, licensed contractors in Ontario, CA on List a Service, or register your own business to get found by local homeowners.