BIS Investigation Services
“Well I heard Iyad has done wonderful work from a friend so I decided to hire him and was very satisfied on how fast service was.”
Best Private Investigators near Southlake, TX
These agencies serve Southlake from nearby bases in towns including Fort Worth, Colleyville and Arlington.
13 agencies listed · 3 open 24/7 · 5 open weekends · 8 rated 4.5+ · 5 show a license
Data verified October 18, 2026
National Special Force
“They personally helped me and resolved my issue very quickly, so I recommend them and would hire them again.”
Tracie Investigations
“The gentleman I was in contact with was very professional, and I got all of the reassurances I needed concerning the person under investigation.”
National Security & Protective Services
“I am wholely appreciative of their patience when I brought forth questions and they took the careful steps of making sure all answers were rather detailed and still brief.”
Stonewall Protection Group
“Each one of them have so much joy despite the 100° weather they are in all day, and they have the best conversations with our campers!”
Red Door Investigations
“Sometimes the situations requiring a PI can be heavy and/or emotional and they treat their clients with kindness.”
The 13 agencies on this page are the private investigators listed for Southlake, TX. 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: Southlake, TX
11 of the 13 agencies on this page have a rating, from 3.1 to 5.0 across 297 reviews; 1 has 50 or more reviews and 8 are rated 4.5 or higher. 3 are open around the clock; 5 are open on Saturdays and 4 on Sundays. 5 show a license on their websites and 1 has a BBB rating of A or A+. Domain records put 7 websites of the agencies on this page at ten or more years old; the oldest dates from 1999. 3 offer urgent consultations and 3 offer a free initial consultation. We have a website on file for all 13 of the agencies on this page; 12 publish a contact page and 10 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.
Do investigators listed for Southlake discuss a case free?
3 of the 13 agencies state that a first consultation costs nothing. Use it to describe the problem and hear whether the work can be done lawfully at all. A straight agency will sometimes tell you on that call that what you want cannot be obtained, which saves you a retainer.
Cluso Investigation
“Each person at Cluso, from owner to the staff researcher, seems to be invested in the success, integrity, and quality of the firm and their customers.”
DNA Security Services
“They were very professional and took the time go over all the aspects of our new security system.”
Purple Mountain Associates
“He was kind and understanding and helped me accomplish what I needed.”
Stiletto Spy & Company Investigations
“No matter how urgent or how complex the case, she always does a great job.”
Tracecraft Special Investigations
Atex Investigation
Hewitt & Cowden Investigations
Why these companies made our list
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