International Security Services
“Michael will take his time and explained in detail what the course entails and what is required of you.”
Best Private Investigators in Brooklyn, NY
15 agencies listed · 12 in Brooklyn · 3 open 24/7 · 9 open weekends · 12 rated 4.5+
Data verified October 27, 2026
ELK Investigations
“Moe was very helpful in explaining company guidelines and procedures, consult with my attorney, conducted surveillance and presented reports that helped me win my custody battle in New York.”
New York - Private Investigators
“I had a great experience with these private investigators in brooklyn, ny.”
Mossad Investigations & Security Corporation
Ryan Investigative Group
“He helped me in my time of despair concerning by brother's Estate.”
Ifill & Associates
“From the moment I stepped into Ifill's office and met Sherwin Ifill I realized he knows what he's doing, he knows exactly how to help me with my “case” and got all information I needed!”
The 15 agencies on this page are the private investigators listed for Brooklyn, NY. 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: Brooklyn, NY
12 of the 15 agencies we list are based in Brooklyn; the other 3 serve Brooklyn from New York (3 mi) and Staten Island (11 mi). 14 of the agencies on this page have a rating, from 4.2 to 5.0 across 652 reviews; 4 have 50 or more reviews and 12 are rated 4.5 or higher. When clients rate these agencies on specific qualities, they most often praise professionalism (100%), responsiveness (79%) and quality (69%). The topics that come up most in reviews of the agencies on this page are "communication" and "efficient". 3 are open around the clock; 8 are open on Saturdays and 6 on Sundays. 4 show a license on their websites. Domain records put 10 websites of the agencies on this page at ten or more years old; the oldest dates from 2001. 3 offer urgent consultations; 4 offer a free initial consultation and 1 is family- or locally-owned. We have a website on file for all 15 of the agencies on this page; 14 publish a contact page and 10 list a public email. We count these figures across the agencies on this page; distances are straight-line, and hours and prices change, so confirm the details with the agency before you book.
Which investigators listed for Brooklyn describe their work online?
All 15 agencies on this page have a website on file. Those pages are where an agency states its license, the kinds of investigation it takes on, and whether it works mainly for attorneys, for companies or for private clients. That last point changes how a report gets written.
Sapphire Background Check
“Made an appointment and had to wait no more than a couple of minutes to be called in for verification services.”
Detective Zhurba
“I want to express my deep gratitude for the responsibly done work..”
Infotactic Group
“Excellent private investigation company, diligent, professional, delivers results”
Protect-All Security Service
RBA
French Connection Research
American Eagle Investigations
“I would like to thank Dan for helping solve a family dispute.”
First Class Process
“Very professional, they get the job done QUICK!”
Michael McKeever Private Investigator
“Michael's presence during that time Was very supportive,attentive and always had a caring,understanding tone.”
Why these companies made our list
Is this page useful? Yes
No
Is there anything wrong with this page?
