South Dakota Private Security Companies
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Black Hills Patrol
Citibank Security Sioux Falls SD
Dakota Knights Security Mission SD
G4S Secure Solutions North America Sioux Falls, SD
Empire Mall Security Sioux Falls SD
Gateway 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-Ford Ranger
Security Contracting Service Mission, SD (Agency is defunct)
Signal Security Sioux Falls, SD
SMP Security Services
Special Ops Security Chevy Silverado
Tri-State Security Sioux Falls SD
Wackenhut Security Sioux Falls SD