About - 918.280.9637


Protecting Valuable Assets

For nearly twenty years The Harmon Group's managers directed security operations for Tulsa's largest city asset, the Thomas Gilcrease Museum... An asset greater than Tulsa's International Airport.

Value-Added Customer Service

Every cost effective security solution we design and implement is custom tailored to the special needs of each individual client. Enhanced security services may include trained and certified, armed and unarmed security guard patrol officers, modern video security camera and CCTV surveillance systems complete with monitoring services, integrated ingress and egress security management or access control systems, on-site security vehicles or security patrol units.

Consulting and Investigation Services

Harmon Security Group addresses a wide range of security-related concerns and issues for clients operating in eastern Oklahoma including:

  • Business integrity solutions
  • Litigation support solutions
  • Workplace violence
  • Brand protection solutions
  • Crisis management
  • Technology risk
  • Network Audits
  • Security surveys
  • Interrogation services

Company History

Roger A. Harmon was President and founder of Harmon Security Group LLC., he is currently retired. Roger is now a consultant for the Harmon Group. Mr. Harmon has vast experience in the security industry, he began his police career more than forty years ago, after a successful tour in the Vietnam War. Utilizing specialized explosives training received while in the U.S. army, Roger was a founding member of the Tulsa Police Department's bomb disposal unit, his experience ranges from explosive mitigation to white collar crime and homicide investigation. Roger Harmon retired from the Tulsa Police Department in 1990 and served as the Director of Security for the Thomas Gilcrease Museum for 19 years. Roger is a graduate of Red Stone Arsenal and the FBI's white-collar crime academy, and he is a CPP (Certified Protection Professional, certification via ASIS (American Society for Industrial Security).