Public record · South Dakota
Union County: 32 companies on record.
The companies the public registers place in Union County, South Dakota, by sector, as DealSTE read them — read 8 Nov 2026. Each opens on its own record page: registration, sites, permits, liens and compliance, each with its register.
| Sector | Companies |
|---|---|
| Manufacturing | 17 |
| Defense and federal contracting | 8 |
| Distribution & wholesale | 2 |
| Healthcare — medical, dental & home health | 2 |
| Sand and gravel | 1 |
| Trades — HVAC, plumbing, electrical, mechanical | 1 |
| Trucking | 1 |
| Company | Sector | City |
|---|---|---|
| InnPro | Manufacturing | Galesburg |
| ProForm Fabrication, LLC | Manufacturing | Winsted |
| Aaladin Industries | Manufacturing | Elk Point |
| Midwest Magnetic Components | Manufacturing | Alcester |
| Squirt Gun Holdings | Manufacturing | Alcester |
| Csd, LLC | Manufacturing | Sioux City |
| Pedersen Machine Inc | Distribution & wholesale | BERESFORD |
| K & K MOBILE STORAGE INC | Trucking, freight & logistics | NORTH SIOUX CITY |
| Prime Physicians Tri Providers LLC | Defense & federal contracting | North Sioux City |
| Three Oaks Construction, INC | Defense & federal contracting | North Sioux City |
| Bill Boyer | Mining & Aggregates | Howarden |
| SIOUX CITY, SD VA COMMUNITY BASED OUT-REACH CLINIC (CBOC) | Healthcare — medical, dental & home health | DAKOTA DUNES |
| UNITYPOINT HEALTH - ST. LUKE'S LABORATORY - DAKOTA DUNES | Healthcare — medical, dental & home health | DAKOTA DUNES |
| Alkota Cleaning Systems INC | Defense & federal contracting | Alcester |
| Ddh LLC | Defense & federal contracting | Dakota Dunes |
| Crown Bakeries - Smyrna | Manufacturing | Philadelphia |
| Custom Truck One Source | Manufacturing | Kansas City |
| ENVIRO SAFE AIR, INC. | Trades — HVAC, plumbing, electrical, mechanical | N SIOUX CITY |
| Fimco Inc. | Manufacturing | North Sioux City |
| Hanger Prosthetics & Orthotics East INC | Defense & federal contracting | Dakota Dunes |
| Hearthside Food Solutions | Manufacturing | McComb |
| Interbake Foods | Manufacturing | North Sioux Cit |
| Interbake foods NSC | Manufacturing | North Sioux City |
| Prince Manufacturing Company | Manufacturing | Mills River |
| Red's All Natural, LLC | Manufacturing | North Sioux City |
| RIVERSIDE TECHNOLOGIES INC | Distribution & wholesale | NORTH SIOUX CITY |
| Rp Constructors LLC | Defense & federal contracting | North Sioux City |
| Showplace Wood Products, Inc. | Manufacturing | Harrisburg |
| Sterling Computers Corporation | Defense & federal contracting | North Sioux City |
| Thermo Bond Buildings | Manufacturing | Brandon |
| Thermo Bonds Buildings | Manufacturing | Elk Point |
| Zanfel Laboratories, INC | Defense & federal contracting | Dakota Dunes |
Every company in the county, with its filings and the people behind it, is read inside DealSTE. Request access.
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