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we deliver peace of mind


OSS Inc. is a contract security company with over 45 years of guard experience. We provide fully uniformed, unarmed security guards who protect and monitor your industrial facility, commercial office space or corporate entity.

Our contract security guard officers are trained in various crime deterrent measures, surveillance techniques and emergency procedures. With over 2,000 trained security guards on staff, OSS Inc. is considered one of the largest private security companies in the United States.

Security Licenses:

  • Ohio Department Private Investigator Security Guard Services: From the Ohio Department of Homeland Security
  • Commonwealth of Pennsylvania Private Detective License: Through Butler County
  • New York Department of State Division of Licensing Services

Feel safe knowing our security guards:

  • Patrol your property
  • Guard your entryways
  • Sign in/out authorized personnel
  • Log in/out visitors & inventory
  • Escort customers & employees to their cars
  • Check locks of common area doors, windows & gates
  • Are EMT trained & CPR certified

OSS has a reputation for performance, service and value. We provide only the very best in corporate security guard services, we put a premium on customer service, and our prices are very competitive versus other private security companies. A strict set of standards for hiring only the best and most capable security personnel, along with our site-specific security officer training programs, ensure:

  • The prevention of unauthorized visitors
  • The removal of potential hazards
  • The presence of a first responder in cases of emergency

"One of the top 40 security guard service companies in the nation."

Locally Owned

Family Owned & Operated


"...I have found your Operations Mgr. to be keenly aware of security vulnerabilities and issues. I know when I advise him of a concern it will be addressed with the customer in mind. I am impressed that he follows up on issues that he is aware of. Recently, I was approached by another security company about guard contract opportunities and quite frankly, were it not for him, I would have inquired further."

-- Forum Health, Youngstown, OH


"...We have experienced the professional services of OSS Inc. since January 2009 and found them courteous, reliable and responsive. They quickly respond to emergency situations that arise and have been able to maintain a stable, trained staff. We would recommend OSS Inc. to all who would inquire."

-- Eaton Center Building, OH

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Corporate Headquarters:  2529 Elm Road NE, Warren, OH 44483  |  888-500-4677  |  P: 330-372-1163  |  F: 330-372-6992  |  info@osscompanies.com

Serving Ohio, Pennsylvania & New York  |  Other Locations:  Cleveland, OH  |  Columbus, OH  |  New York, NY  |  Pittsburgh, PA

2015 OSS Inc.  |  Maintained by Cassidy Advertising & Consulting LLC & Belstar Media