Security company licensing in Maryland
Maryland State Police, Licensing Division, Professional Licensing Unit licenses security companies here, but we do not yet carry its roster, so we cannot tell you who is on it.
MSP publish a single agency listing covering 1,040 security-guard-capable agencies with licence number, type and full address. There is no per-record lookup and no status or expiry column — the list is active-only, so a company disappearing from it is the only signal that its licence ended.
Until then, verify a company with the regulator directly, and treat any license number a company gives you as a claim we have not checked.
Check a company at the Maryland State Police, Licensing Division, Professional Licensing Unit lookup →What you can still check
There is a second license, and in Maryland it may be the only one that exists: the guard’s own.
What a guard and a company should hold in Maryland, and how to confirm it →