Advanced Investigative & Screening Solutions
“Excellent course, works well when knocking out the CE class every 2 years”
Best Private Investigators near Tomball, TX
These agencies serve Tomball from nearby bases in towns including Spring, Houston and Magnolia.
12 agencies listed · 4 open 24/7 · 8 open weekends · 10 rated 4.5+ · 8 show a license
Data verified October 15, 2026
GPI Defense
“It's very well seen through their actions that they take great pride in what they do in protecting people, property, and venues.”
Gradoni & Associates
“Although the investigation did not yield the results we had hoped for due to the age of the case, I was very impressed with the firm's performance.”
Leatherneck Investigations
“These guys were great in getting the infidelity evidence needed for my divorce case.”
My Armor Services
“All of the officers are kind, professional, and respectful of staff at our hospital and our patients.”
Metropol Security Services
The 12 agencies on this page are the private investigators listed for Tomball, 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: Tomball, TX
10 of the 12 agencies on this page have a rating, from 4.6 to 5.0 across 364 reviews; 3 have 50 or more reviews. 4 are open around the clock; 8 are open on Saturdays and 5 on Sundays. 8 show a license on their websites. Domain records put 10 websites of the agencies on this page at ten or more years old; the oldest dates from 1999. 5 offer urgent consultations and 4 offer a free initial consultation. We have a website on file for all 12 of the agencies on this page; all 12 publish a contact page and 6 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 Tomball discuss a case free?
4 of the 12 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.
Safesecure 360
“We recently worked with SAFESECURE 360 to audit, support, and construct a comprehensive crisis management plan for our school, and we couldn't be more impressed with their professionalism and dedication to safety.”
Checkmate Investigative Field Services
“Professional and will get the job done.”
Markham Investigations
Asset Locate Services
Resultquest
Kelmar Global
Why these companies made our list
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