Zimmerman Investigative Services
“The most professional, knowledgeable and personable investigator I have spoken to in my search for an answer during a tough time.”
Best Private Investigators near Gloucester, NJ
These agencies serve Gloucester from nearby bases in towns including Philadelphia, PA, Cherry Hill Township and Williamstown.
15 agencies listed · 4 open 24/7 · 7 open weekends · 11 rated 4.5+ · 5 show a license
Data verified October 18, 2026
Felder & Associates Investigations
“Ron is a great detective who provides thorough work and excellent communication.”
New Jersey Investigation
“Helped me get some truth behind my employees who were stealing company time right under my nose !”
OPS Security Group
“Their team members are actually trained for emergencies - and know how to handle all types of situations.”
Sepulveda
Persist Process and Investigations
“Will absolutely use Persist PI in the future and recommend to family and friends.”
The 15 agencies on this page are the private investigators listed for Gloucester, NJ. What each one states about its license, its specialties and the areas it covers comes from its own website; ratings and quotes come from public reviews.
Area overview: Gloucester, NJ
13 of the 15 agencies on this page have a rating, from 4.0 to 5.0 across 350 reviews; 2 have 50 or more reviews and 11 are rated 4.5 or higher. 4 are open around the clock and 7 are open on weekends. 5 show a license on their websites and 1 has a BBB rating of A or A+. Domain records put 13 websites of the agencies on this page at ten or more years old; the oldest dates from 1998. 4 offer urgent consultations and 3 offer a free initial consultation. 1 has Spanish-speaking staff. We have a website on file for all 15 of the agencies on this page; 11 publish a contact page; 11 list a public email and 1 takes bookings online. We count these figures across the agencies on this page; hours and prices change, so confirm the details with the agency before you book.
Do investigators listed for Gloucester discuss a case free?
3 of the 15 agencies state that a first consultation costs nothing. Use it to describe the problem and hear whether the work can be done lawfully at all. A straight agency will sometimes tell you on that call that what you want cannot be obtained, which saves you a retainer.
Maragell
“Had a few issues but the firm worked to resolve them to my liking.”
Valentine & Associates
Selective Subpoena Invstgtv
Carey Investigations
ICU Investigations
“If I had to describe ICU investigations I'd say "best of the best".”
Apple Investigations
“I would recommend this company for anyone who is looking for services being done right!”
B & R Services
“The company is a pleasure to deal with and always looks out for its clients's best interests.”
Private Investigators NJ
Don C. Taylor Associates
Why these companies made our list
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