| Rank | Previous Rank | Company | Local Executives | # Employees | Founded Locally | Services |
|---|---|---|---|---|---|---|
| 1 | 1 | TriState Security & Patrol Services Inc. | Mitch Wiese, general manager | 86 | 1991 | Guard service (armed and unarmed), patrol service, security consulting, special events security |
| 2 | 3 | Sioux Merchant Patrol & Security Service Inc. | David Kearney, CEO and president | 52 | 1950 | Night patrol service, armored car service, station guards |
| 3 | 2 | Dakota Security Systems Inc. | Eric Yunag, president and CEO | 48 | 1976 | Consulting, design, project management, installation, systems integration, training, monitoring, maintenance contracting and ser |
| 4 | 4 | Midwest Alarm Co. | Larry McMillen, president | 30 | 1967 | Burglar and fire alarm system installation and service, access control, closed-circuit television |
| 5 | 5 | Sioux Falls' Finest Security & Protective Services | Jerry James, owner | 16 | 1998 | Stationary and patrol security guard service, civilian and executive protection, self-defense services, escort services, investi |
| 6 | 6 | Safe-N-Secure | Bryan Peters, owner | 15 | 1997 | Alarm and surveillance system installation, service and monitoring |
| 7 | Automatic Building Controls | Monte Dumke | 13 | 1986 | Fire alarms, clock systems, nurse call, security, access control, batteries, intercom/sound, CCTV/cameras | |
| 8 | Confidential Investigations Risty Risty and Risty | Elliott Lee Risty, owner | 12 | 1977 | Investigations and body guard services | |
| 9 | 7 | Foss Communications & Security Inc. | Jason Foss, owner | 12 | 1997 | Alarm and surveillance system installation and monitoring, card access systems |
| 10 | 8 | Ban-Koe Systems Inc. | Dan Daley, sales and engineering manager | 8 | 1982 | Video surveillance, intrusion security, fire alarm, security door access, intercom paging, engineered sound, time and attendance |
| 11 | 9 | Automatic Security Co. Inc. | Bill Perkins, president | 7 | 1957 | Fire, security, door entry and camera systems and service |
| 12 | 10 | Electro Watchman Inc. | Mark Olson, regional manager | 7 | 1987 | Security, fire access systems; closed-circuit television; patient wandering systems; monitoring |
| 13 | 3D Security Inc. | Troy Anderson, owner | 6 | 2006 | Burglar and fire alarm and surveillance system equipment, installation, service and monitoring; bank security equipment |
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