About - 405.708.6545


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 Oklahoma City's Will Rogers Airport.

Company Information

Our local offices are located at 100 Park Avenue in Oklahoma City, with satellite offices throughout the central U.S. Harmon Security Group is a security service/systems provider, applying collective experience from the security service and security technology industries into 21st century solutions. Harmon Security Group specializes in providing on-site security personnel for all industries and organizations.

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