Best Private Investigators near Dundalk, MD
These agencies serve Dundalk from nearby bases in towns including Baltimore, Towson and Pasadena.
15 agencies listed · 6 open 24/7 · 10 open weekends · 13 rated 4.5+ · 4 show a license
Data verified October 16, 2026
Castle Security Group
Metropolitan Police Protection/Security Services
Constable Court Services
Eyes On Investigations
Mwr Investigations
The 15 agencies on this page are the private investigators listed for Dundalk, MD. 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: Dundalk, MD
14 of the 15 agencies on this page have a rating, from 4.1 to 5.0 across 136 reviews; 13 are rated 4.5 or higher. 6 are open around the clock; 10 are open on Saturdays and 7 on Sundays. 4 show a license on their websites. Domain records put 7 websites of the agencies on this page at ten or more years old; the oldest dates from 2008. 6 offer urgent consultations and 1 lists coupons or special offers. We have a website on file for 12 of the agencies on this page; 9 publish a contact page and 8 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.
Which investigators listed for Dundalk describe their work online?
12 of the 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.