Hire Private Investigation in Baltimore, Maryland 2026 — Companies & Prices

What does a private investigator do?

Licensed private investigators handle the fact-finding side of security: physical and video surveillance, background checks and due diligence, fraud and infidelity investigations, skip tracing to locate hard-to-find people, and often process serving. The value is evidence gathered lawfully and documented well enough to be used in an insurance claim, a courtroom or a private decision. In Baltimore, the final cost also depends on local context — such as maryland's largest security market and talent pool — so it pays to request a tailored proposal and compare several licensed providers.

Do private investigators need a license?

Yes — PI work is one of the most tightly regulated parts of the security industry. In California an investigator or agency holds a BSIS Private Investigator license; in Illinois, a Private Detective license through IDFPR; other states run comparable boards. This matters directly to the client: evidence gathered by an unlicensed operator, or gathered unlawfully, can be worthless in court and expose you to liability. Always confirm the license is current. When hiring in Baltimore, confirm the provider knows the local environment and challenges such as cargo and container-yard theft.

What license do security guards in Baltimore need?

Maryland regulates security differently from California: rather than issuing a card to each individual guard, the Maryland State Police (MSP) Licensing Division licenses the security guard agency — the company must hold a current MSP Security Guard Agency license (and a Private Detective Agency license for investigative work), with numbers in the MSP format like "24PLU-SGPD…". Guards are registered and background-checked through their licensed employer, and armed officers must additionally be certified to carry and hold the required Maryland handgun (wear-and-carry) permit. Always confirm the agency's MSP license before hiring.

What port and industrial security demand exists in Baltimore?

The Port of Baltimore and its surrounding industrial and logistics belt drive heavy demand for site guards, gate and dock access control, overnight yard and container-lot patrol, and cargo-theft prevention. As a major East Coast port and distribution point, Baltimore generates significant supply-chain security work, so a provider with real port, rail-yard and warehouse experience is the right fit for these sites.

How do I find private investigation companies in Baltimore?

On HireSecurityNow.com you can search and compare licensed private investigation companies in Baltimore. Review each company's profile, check the services they offer and request free quotes. Our directory lets you filter by city and service type to quickly find the best available options.

Private Investigation in Baltimore, Maryland

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A C ROMAN AND ASSOCIATES, INC.

A-CHECK AMERICA, INC. DBA A-CHECK GLOBAL

AABO, LLC

ADVANCED TECHNOLOGY INVESTIGATIONS, INC

ADVANCING REAL CHANGE INC.

AIC COMPANIES LLC

ALLEN INVESTIGATIVE SERVICE LLC

ALLIED UNIVERSAL SECURITY SERVICES

ARIC, INC

ARON SECURITY INC.

AS SURVEILLANCE LLC

BLACKWATER INVESTIGATIONS

BLOUNTS PRIVATE INVESTIGATION AGENCY LLC

CENTENNIAL PROTECTION GROUP, LLC

COGNIZANCE PROTECTION COMPANY LLC

COMMAND INVESTIGATIONS LLC

DAVIS INVESTIGATIONS LLC

DEFENDER ONE LLC

DELTA ASSOCIATED INVESTIGATIONS, INC.

DIGISTREAM VIRGINIA, INC.

DS PRIVATE INVESTIGATION

DUNBAR SECURITY SOLUTIONS INC.

EAST COAST INVESTIGATIONS, INC

ELITE INVESTIGATIONS, LLC

EVENT TACTICAL LLC

EXECUTIVE INVESTIGATIVE REPORTS

FEDERAL SECURITY SERVICES GROUP USA

FIRE CAUZE LLC

FORT GREEN DEFENSE, LLC.

GENESIS 1 SECURITY AGENCY LLC

GLOBAL INVESTIGATIVE & SECURITY SOLUTIONS LLC

GOLD GUARD SECURITY LLC

IGLOBAL SECURITY GROUP LLC

INSIGHT GLOBAL, LLC

INVESTIGATIVE CONSULTING AND SERVICES INC.

JP INVESTIGATIVE GROUP

KWIK PROTECTIVE SERVICES LLC

LAPRADE SERVICE GROUP LLC

M PROTECTION CONSULTING

M4 SECURITY, LLC

MCGEE'S INVESTIGATIONS

MERGE INVESTIGATIONS INC.

MWR INVESTIGATIONS INC

MYLES DAVIS PROTECTIVE SERVICES, LLC.

NEFCO FIRE INVESTIGATIONS

ORGANIZED INVESTIGATION SERVICE

PHOTO FAX, INC.

POLICE PROTECTIVE SERVICES LLC

Frequently asked questions