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On-site security
CLEET-certified armed and unarmed officers selected for your facility, people, and operating requirements.
Tulsa & Oklahoma City
Professional security where it matters most.
Certified officers, active supervision, and tailored protection for Oklahoma facilities, organizations, and events.
CLEET-certified officersCustomized security plans25+ years of experience
25+Years serving clients
A+BBB rating
2Oklahoma markets
24/7Security operations
Security services
Protection built around your operation.
Every site carries different responsibilities and risks. Harmon builds the personnel, supervision, and technology plan around yours.
Explore service
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Patrol & asset protection
Visible deterrence, property checks, and responsive patrol coverage built around the risks at your location.
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Surveillance & access
Integrated video monitoring, visitor screening, and access-control support for safer, more accountable sites.
Industries we serve
Security that understands your operation.
A lobby, a construction site, and a manufacturing floor do not need the same security plan. We learn the environment first, then align the people, procedures, and oversight around it.
Site-specific planning with accountable supervision.
01Commercial properties
Professional lobby, access, tenant, and after-hours coverage for high-rises and business facilities.
02Construction sites
Flexible patrol and monitored protection for equipment, materials, and active job sites.
03Government facilities
Accountable officers and clear procedures for municipal buildings and public-facing operations.
04Industrial & manufacturing
Site-aware security for employees, inventory, restricted areas, and complex operating environments.
Every security plan starts with understanding your operation.
Build your coverage planLocal leadership
Serving Oklahoma with accountable, hands-on security.
Office
Tulsa
918-280-9637Office
Oklahoma City
405-708-6545
Why Harmon
Preferred and trusted for more than 25 years.
Harmon's managers directed security operations for Tulsa's Thomas Gilcrease Museum for nearly twenty years. The City of Tulsa also selected Harmon Security Group to provide transportation services for people experiencing mental-health crises—assignments where professionalism, judgment, and accountability matter.
Today, Harmon brings that experience to tailored security programs for government, commercial, industrial, and public-facing operations across Tulsa and Oklahoma City.
Talk with our teamContact Harmon
Let's talk about what you need to protect.
Share a few details and our team will help determine the right personnel, coverage, and next step for your operation.
Need immediate assistance?
918-280-9637