South Dakota contractor and trade credentials
The reviewed statewide sources publish separate requirements: Plumbing Commission license types, Electrical Commission electrician licensure, and a Department of Revenue contractor's tax license for described construction services.
Contractor excise-tax license
The Department of Revenue states that a person who enters a contract for construction services, or who constructs, builds, installs, or repairs a fixture to real property, must have a South Dakota contractor's tax license. Current statewide row-level license records are NOT_ACQUIRED. This page does not publish a count of all construction businesses.
Plumbing Commission source lists
The public plumber list is dated July 31, 2026. It reports named licensee rows by the Commission's displayed license type. The source does not expose license identifiers or a current status field; these are source-row observations, not verified counts of active licenses, distinct people, or contractor businesses.
| Source class | Listed name/class rows |
|---|---|
| Plumber | 873 |
| Plumbing contractor | 665 |
| Apprentice plumber | 284 |
| Apprentice plumber 2nd | 231 |
| Apprentice plumber 3rd | 230 |
| Apprentice plumber 4th+ | 343 |
| Apprentice plumber (3rd) | 15 |
| Journeyman plumber | 22 |
| Restricted plumber | 20 |
| Restricted journeyman plumber | 2 |
| Restricted plumbing contractor | 113 |
The separate specialty list is dated February 4, 2026 and includes expiration dates. Most listed dates are June 30, 2026, before this retrieval on October 14, 2026. The source is shown as dated observations; current license status is NOT_ACQUIRED.
| Source class | Listed name/class rows |
|---|---|
| Sewer and water contractor | 373 |
| Sewer and water installer | 253 |
| Sewer and water apprentice | 103 |
| Underground irrigation | 59 |
| Water conditioning contractor | 34 |
| Appliance contractor | 20 |
| Restricted sewer and water | 17 |
| Mobile home contractor | 14 |
| Water conditioning installer | 11 |
| Appliance installer | 8 |
| Mobile home installer | 5 |
| Mobile home apprentice | 5 |
| Water conditioning apprentice | 5 |
| 2nd year sewer and water | 1 |
| 3rd year sewer and water | 1 |
The Small Onsite Waste Water Installer list is dated July 31, 2026. It contains 562 named installer rows, with employer names where supplied. Person and employer fields remain separate; no current-status field or unique business count is supplied.
Other statewide credentials
The Electrical Commission licenses all electricians within the state. A current bulk electrical roster was not acquired. Electrical credentials are not included in the plumbing lists. Specialist construction and trade populations remain separate from contractor excise-tax licensing.
Current row-level electrical credentials, contractor tax-license records, a general-contractor business census, and discipline records are NOT_ACQUIRED. The missing rosters are not zero.
Authoritative sources and clocks
- South Dakota Plumbing Commission: Licensed Plumbers (as of July 31, 2026)
- South Dakota Plumbing Commission: Specialty Licensees (as of February 4, 2026)
- South Dakota Plumbing Commission: Small Onsite Waste Water Installers (as of July 31, 2026)
- South Dakota plumbing licensing information
- South Dakota Electrical Commission
- South Dakota contractors' excise tax license
The listed rows retain the regulator's source class and published clock. Names are not used to merge credentials or connect adverse findings. Plumber, specialty, onsite wastewater, electrical, tax license, disciplinary, and business populations are not added into a combined contractor total.