A comprehensive list of private detectives and agencies offering professional investigation services in Philadelphia, PA. Read unbiased customer reviews and recommendations of local investigators. 
Philadelphia's premier investigative company, Gill & Associates, Inc., is well known and respected in the legal and investigative communities and has been for over 30 years. We specialize in a multitude of services to fit your investigtive needs and welcome the opportunity to work with you in finding solutions for them.
Samantha Rivera — Very efficient and cost effective. I was updated every step of the way throughout my investigation and felt like the employees
We currently have over twenty years of knowledge in litigation support, and have established a strong foundation of superior service and uncompromising care to detail. Over 80% of our new customers come to us upon referral from satisfied customers. Our work quality and word of mouth have made us one of the major and finest known investigations companies in the Philadelphia area.
Dave C. — This has to be the most UNprofessional operation I have ever come across! I began corresponding with this office sometime
Since its' inception in 1988, Keystone Intelligence Network, Inc. has been providing investigative, security, consultation and training services to private sector, law enforcement and intelligence entities throughout the world. Our firm are licensed Private Detectives in New Jersey and Pennsylvania.
S. G. — I called several times. Left a message. They have not acknowledged.
Licensed in Pennsylvania and New Jersey, Beck Group. is an expert investigative and protective services corporation. We are bonded and fully insured, with one million dollar liability coverage. Additional information concerning licensing and insurance matters is available upon request.
Jasmine Day — If I could give 0 I would; I've called on numerous occasions been hung up on and ignored when all I tried to do was set up
Hopson Associates is a full-service licensed private investigator and security consulting firm with offices in Pennsylvania and New Jersey. Our staff is comprised of former agents of the Drug Enforcement Administration (DEA), the Federal Bureau of Investigation (FBI), Royal Canadian Mounted Police (RCMP) as well as former state, municipal and military law enforcement officers.
Michael F. — Critical: Professionalism, Quality Surprised by shoddy detective work, failing to uncover items that I think a teenager could
D. O. Richardson & Associates is an investigative agency specializing in Insurance Fraud Investigations. Established in Philadelphia in 1990, we are the leader in our field. We have unmatched experience in combating Workers' Compensation and Liability Insurance Fraud. Over the past 30+ years, our investigations have not only saved our clients hundreds of millions of dollars, but have led to many criminal