South Dakota Private Security Companies
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Black Hills Patrol-Rapid City, SD (Agency Defunct)

Citibank Security-Sioux Falls, SD

Dakota Knights Security-Mission, SD (Agency Defunct)

G4S Secure Solutions-North America Sioux Falls, SD

Empire Mall Security-Sioux Falls, SD

Gateway Security-Sioux Falls, SD (Agency Defunct)

Metro-Rural Security-Sioux Falls, SD

Monument Health Security-Rapid City, SD

Mountain States Security-Rapid City, SD

Sanford Hospital-Sioux Falls, SD

Securitas Security-Sioux Falls SD

Security Contracting Service-Mission, SD (Agency is defunct)

Signal Security-Sioux Falls, SD

SMP Security Services-Sioux Falls, SD

Special Ops Security-Rapid City, SD

Tri-State Security-Sioux Falls, SD

Wackenhut Security-Sioux Falls, SD