All Out Investigations and Security
“I highly, highly, highly, highly recommended them and plan to use them soon.”
Best Private Investigators near Piscataway, NJ
These agencies serve Piscataway from nearby bases in towns including Union, New Brunswick and Scotch Plains.
10 agencies listed · 2 open 24/7 · 6 open weekends · 7 rated 4.5+ · 4 show a license
Data verified October 18, 2026
Spartan Detective Agency
“They handled my request quickly and the information was accurate.”
Argus Investigative Services
“Helped with specific services pertaining to my situation that exonerated me of wrong doing!”
5-0 Investigations
“They are highly qualified and super sharp at what they do and I highly recommend 5-0 Investigations for all you investigative needs.”
Edge Security & Investigations
Statewide Investigations
“Not only was he professional, but he also showed me compassion and empathy at a time when I needed it the most.”
The 10 agencies on this page are the private investigators listed for Piscataway, 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: Piscataway, NJ
8 of the 10 agencies on this page have a rating, from 4.2 to 5.0 across 166 reviews; 1 has 50 or more reviews and 7 are rated 4.5 or higher. 2 are open around the clock and 6 are open on weekends. 4 show a license on their websites and 2 have a BBB rating of A or A+. 9 have ten or more years of experience, the longest 51 years. 2 offer urgent consultations and 3 offer a free initial consultation. We have a website on file for all 10 of the agencies on this page; 5 publish a contact page; 3 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.
Which investigators listed for Piscataway describe their work online?
All 10 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.
O'Neill Associates
C&C Detective Agency
Safeguard Services
Magnum Investigations
“These situations are never light and therefore it's important to work with someone who respects your case and goes above and beyond.”
Why these companies made our list
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