SERVING HOUSTON: The Woodlands, Sugarland, Baytown, Pasadena, Spring, Cypress, Katy, Galveston, Huntsville, College Station.

SAN ANTONIO: Kerrville, New Braunfels, Seguin, Alamo Ranch.

AUSTIN: San Marcos, Bastrop, Dripping Springs, Marble Falls, Georgetown, Manor.

DALLAS, FORT WORTH: Waxahachie, Denton, McKinney, Terrell, Weatherford, Arlington, Grand Prairie, Plano.

PLUS: Beaumont, Temple, Corpus Christi, Waco, Victoria

Our subsidiary company International Specialized Investigations can handle investigative services across the United States, Europe, and Latin America.

INVESTIGATIVE EXPERTISE

Texas Special Investigations Agency delivers trusted, results-driven investigative services tailored to your unique needs. Whether you’re facing a complex legal matter, insurance fraud, background checks, or sensitive surveillance, our experienced team brings the precision, discretion, and professionalism required to protect your interests. With every case, we provide clear answers, actionable intelligence, and peace of mind—because when the truth matters, TSIA is who you can count on.

Accredited, Experienced, Dependable

Former Sheriff’s Deputy, surveillance instructor, firearms instructor, ISI Academy PI Instructor, trial prep expert, jury selection strategist.

Former federal agent, intelligence specialist, IDF soldier, corporate investigations, and engineer.

Licensed claims adjuster in 13 states, insurance fraud investigator, fire & theft specialist, structural examiner, scene recreation specialist.

US Navy veteran, criminal investigations expert.

Carrie Smith – Private Investigator, Forensic Auditor

Kenny Grom – Private Investigator, Digital Forensics

Amanda Huffman – Private Investigator, Surveillance & Intelligence Expert

David Cruz – Legal Expert

Amit Patel – Private Investigator, Behavioral Expert

OUR TESTIMONIAL

Our Customer Reviews

Jim Sorrensen

Pan Am Global Svc

These guys rock, they were very detailed, and were able to solve a major issue for me. I definitely recommend them, it’s worth the money, and it gave me peace of mind.

Nicole Henry

If you needed extensive surveillance and intelligence work done and TSIA really got the job done, if you use anyone else, you’re wasting your money and time.

Adam Corval

We use TSIA extensively to complete detailed background and verification checks on prospective employees which helps us lower our risk and ensure our company provides superior services to our customers.

D. Osterman

Learn about what we’re doing.

Insert Reports