269 security guard and private security companies in Maryland, built from official state licensing data. Compare by city and request free quotes.
Maryland licenses security and private-detective agencies through the Maryland State Police. Demand spans the Port of Baltimore and its logistics belt, the federal and biotech corridor in the Washington, DC suburbs of Montgomery and Prince George's counties, and major healthcare and research institutions such as Johns Hopkins.
Capital: Annapolis · Mid-Atlantic region.
New to hiring here? Read our guide to Maryland security licensing — who regulates it, armed-guard and firearm rules, and how to verify a license yourself.
Browse the companies in each city across the state.
Hire by service type in Baltimore and the state's main cities.
Ranked by license status, profile views and recommendations.
269 companies
1351 INVESTIGATIONS LLC
9-11 SECURITY AND INVESTIGATION SERVICES LLC
A & D SECURITY CONSULTANTS
A&A SECURITY GROUP INC
AATLAS SECURITY GROUP LLC
ABG INVESTIGATIVE SERVICES INC
ACTIVE UNIVERSAL PROTECTION, LLC.
ADMIRAL SECURITY SERVICES
AHTNA PROFESSIONAL SERVICES INC.
ALLIED UNIVERSAL ENHANCED PROTECTION SERVICES
ALLIED UNIVERSAL EVENT SERVICES A/K/A STAFF PRO INC.
ALLIED UNIVERSAL SECURITY SERVICES
ALPHA PROTECTION SOLUTIONS, LLC.
AMERICAN PROTECTION SOLUTIONS
AMERICAN SECURITY PROGRAMS, INC.
ANJUDE PROTECTIVE SERVICES
APC SECURITY SERVICES INC
ARON SECURITY INC.
ASCENDANT PROTECTIVE SERVICES
AT PROTECTIVE SERVICES
BANKERS BUSINESS MANAGEMENT SERVICES, INC.
BE SECURE LLC TRADING AS MAY SECURITY SERVICES
BEAU SECURITY & INVESTIGATIONS, INC
BELTWAY PROTECTIVE SERVICES INC
BEST CROWD MANAGEMENT INC
BLACKOUT INVESTIGATION AND SECURITY SERVICES, INC.
BLACKSTONE PROTECTIVE SERVICES INC
BLOUNTS PRIVATE INVESTIGATION AGENCY LLC
BLUE STAR SECURITY, LLC
BLUELINE INVESTIGATIONS LLC
BLUELINE SECURITY SERVICE LLC
BOYCE EXECUTIVE PROTECTION LLC
BROSNAN RISK CONSULTANTS LTD
BROWN'S ARMOR SECURITY SERVICES, LLC
Showing the top 48 of 269 companies in Maryland. Browse by city above, or the full national directory.
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