

25
YEARS OF EXPERIENCE

Professionalism & Trust
Professionalism and trust are the foundation of effective investigative work. At every stage, integrity, discretion, and accountability ensure that clients receive reliable results and confident, confidential service. Trust is earned through consistent professionalism—by doing the job right, every time.
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

Surveillance

Community Assurance

Criminal Investigations

Insurance Fraud; Special Investigations

Employment, Residential & Criminal Background Checks

Corporate Investigations & Risk Management
More government agencies and private entities trust us.
We work with the Texas Office of Attorney General, Harris County, private attorneys, special interests groups, corporate entities, and other agencies and communities, public and private.
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.
1,000+
Cases solved
10+
Years of training others
7+
Industry Accreditations
25+
Years of experience
Deep Dive Into Expert Fields
Risk Management to Lower Your Liability and Loss

With extensive experience and in-depth investigative research, we help uncover hidden risks and identify vulnerabilities before they lead to costly consequences. Our proven methods allow us to mitigate exposure to legal liabilities, operational disruptions, financial loss, and reputational damage. By proactively addressing threats and providing clear, evidence-based insight, we equip you to make informed decisions that protect your people, property, and interests.
Insurance Contracted SIU, Special Investigations Unit

We conduct specialized investigations for insurance companies to detect, prevent, and document potential fraud. Our team uses advanced surveillance, background research, and claims analysis to verify the legitimacy of reported incidents. By uncovering inconsistencies and identifying fraudulent activity, we help insurers reduce unnecessary payouts, strengthen claims decisions, and uphold the integrity of their operations. As both licensed claims adjusters and private investigators, we are able to bring additional skills and investigative resources to cases.
Surveillance & Criminal Defense Investigations

Our team conducts superior surveillance and thorough criminal defense investigations to uncover the facts that others may miss. With precision, discretion, and legal insight, we gather critical evidence, verify claims, and identify inconsistencies to support a fair and complete defense. We believe justice must protect everyone, and our work ensures that truth and accountability are upheld in every case we handle.
OUR TEAM
Accredited, Experienced, Dependable
Andres Betancourt
Senior Private Investigator, Director.
Former Sheriff’s Deputy, surveillance instructor, firearms instructor, ISI Academy PI Instructor, trial prep expert, jury selection strategist.
Aviboaz Sharabi
Senior Private Investigator, Director.
Former federal agent, intelligence specialist, IDF soldier, corporate investigations, and engineer.
Mike Kirby
Private Investigator
Licensed claims adjuster in 13 states, insurance fraud investigator, fire & theft specialist, structural examiner, scene recreation specialist.
Ramon Contreras
Private Investigator
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

Texas Special Investigations Agency provided outstanding support on a complex corporate investigation. Their team demonstrated exceptional expertise, professionalism, and discretion from start to finish.
TSIA delivered clear, accurate findings and maintained excellent communication throughout the process. Their thorough analysis and reliable results allowed us to respond swiftly and effectively.

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
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Criminal Defense Investigations Reduce Risk To Defendants
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Strategic Savings: How Private Investigation Firms Help Companies Reduce Loss, Time, and Resource Waste
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Neighborhood Turns To P.I. Firm For Help
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