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Browse the Top 13 Private Investigators Serving Maryland

See what 13 private investigators serving Maryland, including Gaithersburg, Towson and Bel Air, offer for personal and business investigations. Read available client feedback, explore business profiles and contact professionals that match your requirements.
Bel Air (1)
Centreville (1)
Easton (1)
Gaithersburg (2)
Keedysville (1)
Ocean City (1)
Rockville (1)
Silver Spring (1)
Stevensville (1)
Towson (2)
Upper Marlboro (1)
10 reviews
Israeli Tactical School
15 Years
10 reviews
Train with former Israeli Shin Bet and U.S. Secret Service instructors
Master executive protection skills with Israeli Tactical School's immersive training programs. Learn CQB tactics, live-fire drills, and covert operations from former Secret Service and special forces instructors in Florida, Pennsylvania, and Poland.
Executive Protection Training Close Quarters Battle (CQB) Firearms Instruction
Website (202) 674-7255 Call Profile
Not rated yet
PXP Security & Investigation
Not rated yet
Our owner has 10 years of experience with the Baltimore City Police Department.
PXP Security offers expert private investigation and cyber security services in Maryland, specializing in computer forensics and asset searches.
Private Detective Body Guard Cyber Security
Website (401) 200-5773 Call Profile
6 reviews
Target Investigations
34 Years
6 reviews
We offer 30+ years of investigative experience with law enforcement backgrounds.
Target Investigations offers expert private investigation services in Gaithersburg, MD, specializing in asset searches, background checks, and more. Trusted for over 30 years with an A+ BBB rating.
Asset Searches Background Investigations Child Custody
(301) 258-1150 Call Profile
3 reviews
Global Investigative Services
33 Years
3 reviews
We have over 28 years of experience in background screening services.
Trusted background screening services for businesses since 1993. Global Investigative Services offers criminal checks, drug testing, and credential verification with fast turnaround and compliance expertise.
Criminal Background Checks Drug Testing Reference Verification
(301) 589-0088 Call Profile
2 reviews
National Background
30 Years
2 reviews
We have over 25 years of experience in background screening since 1996
Trusted background screening services for businesses seeking reliable hiring solutions. National Background offers secure, compliant, and efficient screening tools tailored to your organizational needs.
Background Screening Drug Screening Instant Criminal Database
(410) 604-6200 Call Profile
6 reviews
Absolute Investigative & Security Services
38 Years
Emergency
6 reviews
We offer 30+ years of combined law enforcement expertise from retired police professionals
Trusted Maryland security and investigative services since 1988. Licensed experts in 24/7 security guard deployment, private investigations, and FBI-certified digital fingerprinting. Serving businesses and individuals statewide.
Security Services Fingerprinting Private Investigations
(410) 420-6923 Call Profile
4 reviews
Patriot Security Group
22 Years
Emergency
4 reviews
We employ USG-cleared personnel with 20+ years of operational experience
Patriot Security Group offers global investigative and security services including corporate investigations, threat assessment, and executive protection. Serving Annapolis, MD and international clients since 2004.
Corporate Investigations Criminal Investigations Security Consulting
(202) 922-6309 Call Profile
Not rated yet
R L Oatman & Associates
37 Years
Not rated yet
We offer over 30 years of experience in executive protection and risk assessment.
Trusted leader in executive protection services and training since 1989. Specializing in risk assessments, EP training, and security consulting for Fortune 500 companies and high-profile individuals.
Executive Protection Training Risk Assessments Security Consulting
(410) 494-1126 Call Profile
Not rated yet
Hewett & Associates
40 Years
Not rated yet
We offer 35+ years of investigative experience since 1986
Trusted private investigation services in Maryland and West Virginia since 1986. Expertise in surveillance, accident reconstruction, and legal process service across the eastern US.
Private Investigations Accident Reconstruction Process Service
(301) 432-5009 Call Profile
Not rated yet
CSI Services
Not rated yet
We possess combined 50 years of investigative experience.
CSI Services provides professional, bonded private investigative services and evidence gathering for civil and criminal matters in McDaniel, MD.
Background Investigations Surveillance Traffic Accident Reconstruction
(410) 763-6868 Call Profile