Best Private Investigators near McLean, VA
1 of these agencies is based in McLean; the others serve McLean from towns including Fairfax (8 mi), Washington, DC (10 mi) and Arlington (7 mi).
4 open 24/7 · 7 open weekends · 13 rated 4.5+ · 5 show a license
Data verified October 16, 2026
Stealth Investigative Agency
“I was highly impressed by the knowledge and detailed information provided to me in such a clear manner by Mack.”
Same Day Process
“The speed in the way that their office responds to my needs were exceptional...”
Aliass
“I will say that I'm so happy by the ways things were handle by Hannah, who us one of the employees there.”
MVP Protective Services
“MVP Protective Services is a great company that takes care of all of their clients' needs so they can focus on what's important.”
Maverick Process Service & Investigations
“Brian and his staff are Great, and he will make sure that he will do everything possible to get the job done in a professional and timely manner.”
The 15 agencies on this page are the private investigators listed for McLean, VA. 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: McLean, VA
14 of the 15 agencies on this page have a rating, from 4.1 to 5.0 across 577 reviews; 3 have 50 or more reviews and 13 are rated 4.5 or higher. When clients rate these agencies on specific qualities, they most often praise professionalism (100%), quality (77%) and responsiveness (77%). The topics that come up most in reviews of the agencies on this page are "efficient" and "results". 4 are open around the clock; 7 are open on Saturdays and 6 on Sundays. 5 show a license on their websites and 2 have a BBB rating of A or A+. 11 have ten or more years of experience, the longest 28 years. 4 offer urgent consultations; 5 offer a free initial consultation; 1 is family- or locally-owned and 1 lists coupons or special offers. We have a website on file for all 15 of the agencies on this page; 13 publish a contact page and 11 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 McLean 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.
North Eastern Security Force
“They were very professional over the phone, there was no hassle I just gave them the info they needed and they were there, I cannot recommend this company enough, they are now an easy first choice for me if I ever need to hire security again.”
Associated Investigators
“I used Associated Investigators recently and was pleased with the service.”
K17 Security
“Their professionalism, attention to detail, and commitment to security are commendable.”
Interprobe
“When I required legal documents served promptly, Interprobe exceeded all expectations where another company had faltered.”
Capitol Inquiry
Capitol Process Services
“They are the best, been using Capitol Process for over 2 yeaes.”
Maryland Private Investigations
“Very professional and I highly recommend them to anyone in need of PI services”
Sentry Force Security
“The staff is very knowledgeable and friendly, they also have great sites for both Armed and Unarmed Security Officers.”
Keypoint Government Solutions
Why these companies made our list
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