Manufacturing in Union County, South Dakota

As of JUL 2026, FactoryRegistry lists 22 manufacturing facilities in Union County, South Dakota, sourced from EPA, OSHA and Census records.

FACILITIES

CITIES

TOP INDUSTRY

Machinery Manufacturing

7 facilities

Cities

North Sioux City (7)Alcester (3)North Sioux City (3)Dakota Dunes (3)Elk Point (3)Beresford (1)Beresford (1)Elk Point (1)

Top industries

Machinery Manufacturing (7)Food Manufacturing (5)Wood Product Manufacturing (2)Computer and Electronic Product Manufacturing (2)Transportation Equipment Manufacturing (2)Miscellaneous Manufacturing (2)

Facilities

Thermo Bond Buildings LLC

Elk Point, SD

ACTIVE321992EMP 100-499

Midwest Magnetic Components, INC

Alcester, SD

LIKELY ACTIVE334416EMP 20-99

Alkota Cleaning Systems INC

Alcester, SD

LIKELY ACTIVE333912

Custom Truck One Source - Elk Point

Elk Point, SD

LIKELY ACTIVE336212EMP 20-99

LIKELY ACTIVE333111EMP 100-499

Hanger Prosthetics & Orthotics East INC

LIKELY ACTIVE311111EMP 20-99

Prince Manufacturing Corporation-North Sioux City Campus

North Sioux City, SD

LIKELY ACTIVE333995EMP 20-99

ProForm Fabrication, LLC

Beresford, SD

LIKELY ACTIVE333241EMP 20-99

Sterling Computers Corporation

North Sioux City, SD

LIKELY ACTIVE334111

Zanfel Laboratories, INC

Dakota Dunes, SD

LIKELY ACTIVE325611

Ace Sign Displays, INC.

Dakota Dunes, SD

UNVERIFIED339950

Alkota Cleaning Systems INC

Alcester, SD

UNVERIFIED333912

Consumer Supply - North Sioux

Interbake Foods, INC.

Thermo Bond Buildings, INC.

Elk Point, SD

UNVERIFIED321992

Tops Products Beresford

Beresford, SD

UNVERIFIED322230