A1A Private Investigations
“My roommate was unresponsive and we needed a way to find his family members so they could make decisions concerning his health care.”
Best Private Investigators in San Antonio, TX
15 agencies listed · 13 in San Antonio · 5 open 24/7 · 9 open weekends · 11 rated 4.5+
Data verified October 21, 2026
Velma's Investigation Services
“Velma provided quick and informative background checks, helping me to find the most suitable tenant for my rental property.”
Aces Private Investigations
“I know I can always count on them to be courteous, professional and help me get the results I need right away.”
Reveles Intelligence Group
“Within 24 hours they were able to properly address a personal matter that another individual failed to resolve after weeks of having the same tasker.”
MY Texas PI
“Eugene butler thank you for helping investigate you were effective at your job 👍”
Kelmar Global
“They have done an outstanding job for me for over 20 years.”
The 15 agencies on this page are the private investigators listed for San Antonio, 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: San Antonio, TX
13 of the 15 agencies we list are based in San Antonio; the other 2 serve San Antonio from Selma (14 mi). 12 of the agencies on this page have a rating, from 4.2 to 5.0 across 449 reviews; 3 have 50 or more reviews and 11 are rated 4.5 or higher. 5 are open around the clock; 9 are open on Saturdays and 7 on Sundays. 11 show a license on their websites and 1 has a BBB rating of A or A+. 10 have ten or more years of experience, the longest 33 years. 5 offer urgent consultations; 5 offer a free initial consultation and 2 are family- or locally-owned. 1 has Spanish-speaking staff. We have a website on file for all 15 of the agencies on this page; 14 publish a contact page and 8 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 San Antonio 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.
Ran-Gar Security Solutions
“I have been using them for my Security needs and they are always available.”
Exhibit A Computer Forensic Investigations
“He did not simply tell us what we wanted to hear—he followed the evidence and explained both what could and could not be supported by the forensic findings.”
Linus Investigations and Consulting
“Thank you so much for the great job you do”
Jeanette Hunt & Associates
“She is the best Certified Forensic Document Examiner there is.”
Worley General Investigations
Peden Investigations
Crockett Global Group
Radiance Investigations
“Radiance investigation are heartfelt investigators that really care about you and the truth!”
Gallant Computer Investigative Services
“Easy to work with, incredibly knowledgeable, and above all honest.”
Why these companies made our list
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