The Servepros
“Jack the Serve Guy was down to earth, straight forward, and confident which was reassuring.”
Best Private Investigators near Upper Marlboro, MD
1 of these agencies is based in Upper Marlboro; the others serve Upper Marlboro from towns including Bowie (10 mi), Edgewater (13 mi) and Greater Landover (7 mi).
3 open 24/7 · 5 open weekends · 8 rated 4.5+ · 2 show a license
Data verified October 16, 2026
Palmer's Courier & Legal Svc.
“She definitely went above and beyond, and I will recommend her to anyone and I will use her services again if needed.”
Lynx Security Group
“The expert trainers relayed an impressive amount of information in a short time.”
Search & Locate Detective Agency
“If you have a current court case and need help, I highly recommend these Investigators!”
WCJ Accident Help
“I've always received support and been connected with exactly what I needed to recover physically and financially as well.”
Grand Mission of Central Avenue Fingerprinting Services
“They always get me right for the right price and they are very professional”
The 10 agencies on this page are the private investigators listed for Upper Marlboro, 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: Upper Marlboro, MD
9 of the 10 agencies on this page have a rating, from 4.2 to 5.0 across 119 reviews; 8 are rated 4.5 or higher. 3 are open around the clock; 5 are open on Saturdays and 3 on Sundays. 2 show a license on their websites and 2 have a BBB rating of A or A+. Domain records put 4 websites of the agencies on this page at ten or more years old; the oldest dates from 1999. 3 offer urgent consultations and 1 offers a free initial consultation. We have a website on file for 9 of the agencies on this page; 8 publish a contact page; 6 list a public email and 1 takes bookings online. 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 Upper Marlboro describe their work online?
9 of the 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.
WE Investigations
“I am very satisfied with the work he does, he was very kind and did it in a professional manner and he was very fast, he was always communicating, and comfortable.”
Kaundre Judicial Services
“I have been working with this company for over a decade and they always get the impossible done.”
Accurate Investigations
Cyinfos
Why these companies made our list
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