This dataset includes 135 thousands contractor licenses registered with Washington State Department of Labor & Industries.
| Contractor Name | Principal | Office Address | Effective Date |
|---|---|---|---|
| Duininck Inc | Duininck, Willis Henry | P O Box 208, Prinsburg, MN 56281 | 2015-01-15 |
| Duininck Bros Inc | P O Box 208, Prinsburg, MN 56281 | 2006-03-30 |