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Browse the Top 17 Private Investigators Serving Pennsylvania

See what 17 private investigators serving Pennsylvania, including Harrisburg, Horsham and Philadelphia, offer for personal and business investigations. Read available client feedback, explore business profiles and contact professionals that match your requirements.
Carnegie (1)
Collegeville (1)
Harrisburg (2)
Horsham (2)
Imperial (1)
Jersey Shore (1)
Kennett Square (1)
Lancaster (1)
Monongahela (1)
Norristown (1)
Philadelphia (2)
Pittsburgh (1)
Reading (1)
Stroudsburg (1)
4 reviews
A+ Investigations & Protection
Emergency
4 reviews
Our team includes former law enforcement and military professionals with specialized investigative training
Trusted private investigators offering surveillance, background checks, and security services in Pennsylvania and New York. Experienced team with law enforcement backgrounds delivers discreet, court-ready results.
Infidelity Investigations People Locating Criminal Investigations
Website (484) 930-0995 Call Profile
1 review
Mains Investigative Services, LLC
25 Years
Open 24/7
1 review
Missing Person, Unsolved Homicides, Surveillance, Internal Investigations, Wrongful Arrests
Renowned cold case investigators with 20+ years solving unsolved crimes. Author of investigative textbook and featured TV expert. Founder of AISOCC bringing closure to families nationwide.
Cold Case Investigations Forensic Analysis Criminal Profiling
Profile
Not rated yet
Cassels & Associates LLC
Not rated yet
Why we're the best choice Extensive experience and training Thorough, timely investigations Worldwide contacts Cost effective solutions Free first call consultation Honesty, integrity, confidentiality
(855) 374-8800 Call Profile
8 reviews
MON Valley Detective Bureau LLC
38 Years
Emergency
8 reviews
Experienced team with 31 years in private investigation and security.
Mon Valley Detective Bureau offers professional private investigation and security services in Monongahela, PA. Trusted since 1988 for discreet, reliable solutions to personal and business cases.
Security Guard Services Criminal Investigations Background Checks
(724) 483-5110 Call Profile
4n6PI
6 Years
Emergency
2 reviews
4n6PI
6 Years
Emergency
2 reviews
We offer over 10 years of experience in cybersecurity and digital forensics.
Digital forensics, forensic collection, and eDiscovery for attorneys and companies in Collegeville and Greater Philadelphia. Not a private investigation agency.
Cybersecurity Data Forensics Private Investigation
(484) 848-7376 Call Profile
Not rated yet
The Browning Group
17 Years
Emergency
Not rated yet
We combine 61+ years of law enforcement and military experience with modern investigative techniques.
Professional private investigations, security services, and process serving in Harrisburg, PA. The Browning Group offers licensed, insured solutions with 24/7 availability and nationwide coverage.
Private Investigations Security Guard Services Process Serving
(800) 939-2978 Call Profile
Not rated yet
Shinkowsky Investigations
24 Years
Emergency
Not rated yet
We offer over 20 years of experience in private investigations and security services.
Shinkowsky Investigations offers professional private investigation, security services, and process serving in Harrisburg, PA. Licensed and experienced since 2002, serving clients statewide.
Background Investigations Civil Investigations Corporate Investigations
(717) 540-0631 Call Profile
Not rated yet
Stumar Investigations
Not rated yet
We have over 35 years of experience in private investigation and litigation support.
Stumar Investigations offers private investigative and litigation support services for legal and corporate clients. Expertise in insurance fraud, surveillance, intellectual property, and family law matters since 1987.
Insurance Claims Investigation Surveillance Services Background Investigations
(800) 355-1199 Call Profile
Not rated yet
CIA Security & Patrol
Not rated yet
We bring over 41 years of investigative experience.
With over 41 years of experience and a 98% success rate, we locate missing persons, kidnapped children, and biological families worldwide.
Missing Persons Investigations Biological Family Searches Cold Case Murder Investigations
(610) 388-1776 Call Profile
Not rated yet
Endeavor Investigations
Emergency
Not rated yet
We offer 25 years of investigative experience with a proven track record.
Endeavor Investigations offers discreet, professional investigative services for insurance fraud, domestic cases, and corporate needs in Horsham, PA. With 25+ years of experience and MBE/DBE certifications.
Surveillance Domestic Investigations Insurance Investigations
(888) 204-1870 Call Profile