For over 50 years, Master Security has provided outstanding security services for state and federal government agencies and private enterprises. Established in 1957 as Master Detective Agency, the company originally earned a reputation for its detective work. In 1985, we became Master Security to better reflect the nature of the companies diversified security operations. We specialize in the security business. That’s our only business, and that’s the reason for our continued growth. Experience, commitment, innovation, and follow-through always characterize Master Security’s performance. Our personalized and responsive approach to security management guarantees you will receive outstanding service in a close working partnership to accomplish your mission.
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Master Security Questions
The Master Security annual revenue was $69.6 million in 2026.
Carlos Martínez is the CEO of Master Security.
188 people are employed at Master Security.
Master Security is based in Hunt Valley, Maryland.
The NAICS codes for Master Security are [56, 561].
The SIC codes for Master Security are [73, 738].
Top Master Security Employees
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Carlos Martínez
CEO at Master Security
Madrid, ES -
Ron Holland
Owner at Master Security
Beaverton, OR, US3 -
Christina Hughes
Accounting Manager at Master Security
Cockeysville, MD, US13 -
Myah Savage
Security Officer at Master Security
Owings Mills, MD, US21 -
Suneesh Kv
Operations Manager at Master Security
United Arab Emirates1 -
Clarence Nichols
Armed Security Officer at Master Security
Baltimore, MD, US43 -
Muideen Lawal
Oracle Database Administrator at Master Security
Rosedale, MD, US2
