Licensed contractors in Columbia, Washington
52 contractor and trade licences are in force for licensees based in Columbia, ranking it 37 of 38 in Washington. As of October 11, 2026.
52licences in force
50held by companies
2held by individuals
By trade
| Trade | Licences |
|---|---|
| General / home improvement | 43 |
| Plumbing | 2 |
| Electrical | 5 |
| Other trades | 2 |
How this is counted
Each contractor or trade licence in the state register that is in force on the date above is counted once, in the county of the licensee's address. That is where the contractor is based, which is not always where they work. A licence can cover more than one trade, so the trade rows can add up to more than the total. Trades are grouped from the state's own licence types and specialties. No licensee is named on this page.
These counts are free and refresh monthly.
They come straight from each state's licensing register. Other public-record datasets are available now.
Browse datasets →
They come straight from each state's licensing register. Other public-record datasets are available now.
Browse datasets →