Professions / Plumbing Contractors
Contractors licensed for plumbing systems — water supply, drainage, gas piping and fixtures.
| State | Licenses | Active |
|---|---|---|
| Washington (WA) | 2,971 | 2,168 |
| California (CA) | 4,326 | 4,123 |
Not separately classified in Oregon in our source (that state licenses this trade through a different board), so this page covers the states whose roster identifies it.
Search plumbing contractors and all classifications by name; the result row shows each license's type so you can confirm the trade.
Searches the live dataset by business or principal name (straight from
/v1/search — nothing here is mocked). A non-match returns an honest empty result.
| Status | Records | Share |
|---|---|---|
| active | 6,291 | 86.2% |
| suspended | 393 | 5.4% |
| expired | 458 | 6.3% |
| inactive | 4 | 0.1% |
| other | 151 | 2.1% |
Where covered plumbing contractors are based.
| City | Licenses |
|---|---|
| Los Angeles | 157 |
| Seattle | 138 |
| Spokane | 119 |
| San Diego | 119 |
| Tacoma | 112 |
| San Jose | 102 |
| Vancouver | 83 |
| Riverside | 71 |
| San Francisco | 70 |
| Puyallup | 60 |
| Sacramento | 57 |
| Auburn | 55 |