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These agencies serve Clarkstown from nearby bases in towns including White Plains, Yonkers and New City.
24 agencies listed · 5 open 24/7 · 16 open weekends · 17 rated 4.5+ · 6 show a license
Data verified October 18, 2026
The 24 agencies on this page are the private investigators listed for Clarkstown, 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.
20 of the 24 agencies on this page have a rating, from 3.9 to 5.0 across 264 reviews; 1 has 50 or more reviews and 17 are rated 4.5 or higher. When clients rate these agencies on specific qualities, they most often praise professionalism (80%), responsiveness (75%) and quality (55%). 5 are open around the clock; 14 are open on Saturdays and 14 on Sundays. The services the agencies on this page list most often on their websites are process service (3), surveillance (3), trial preparation (3), investigations (2) and missing persons (2). 6 show a license on their websites. 20 have ten or more years of experience, the longest 39 years. 5 offer urgent consultations; 6 offer a free initial consultation and 1 lists coupons or special offers. We have a website on file for 23 of the agencies on this page; 20 publish a contact page and 19 list a public email. We count these figures across the agencies on this page; hours and prices change, so confirm the details with the agency before you book.
23 of the 24 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.
