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About Us
EXPERIENCE
Texas Investigation Agency International LLC and Training School
Veteran-Led. Mission-Focused. Results-Driven.
Texas Investigation Agency International LLC (TIAI) is a premier, fully licensed and insured private investigation firm and training institution headquartered in San Antonio, Texas. With over three decades of combined experience across law enforcement, military service, and private-sector investigations, we deliver precision-driven solutions rooted in integrity, strategy, and results.
Established in 2014 by Andrew Angarita, USA (Ret.), TIAI is proudly veteran-owned and operated, reflecting a leadership philosophy forged in discipline, duty, and unwavering commitment to truth.
Our investigative professionals bring a rare depth of insight and operational knowledge to every assignment. Whether navigating complex civil, criminal, corporate, or personal matters, we are equipped to assess your situation with discernment and respond with measured, assertive, and results-oriented strategies.
All TIAI investigators are fully credentialed and licensed by the Texas Department of Public Safety – Private Security Bureau, ensuring compliance, professionalism, and accountability at every stage.
Lic. Numbers: A18895401 | Y07358201
For consultations, case inquiries, or training enrollment:
📧 Email: info@texasinvestigation.agency
📞 Phone: (210) 870-9791
KNOWLEDGE
Put our training, expertise, and decades of investigative experience to work for you.
At Texas Investigation Agency International, we remain at the forefront of evolving laws, investigative methodologies, and forensic technologies. Our unwavering commitment is not only to meet your expectations—but to surpass them.
Whether your case involves fraud, infidelity, missing persons, child custody, asset recovery, surveillance, background investigations, or digital forensics, our licensed professionals bring the precision, discretion, and insight necessary to uncover the truth.
We offer advanced capabilities in forensic accounting, computer and mobile device forensics, and a wide range of specialized investigative services—tailored to your needs with the utmost professionalism and confidentiality.
“The truth will set you free.”
RESULTS
We Understand. We’re Here to Help.
At Texas Investigation Agency International, we recognize that most clients seek our services during times of uncertainty, conflict, or distress. Whether personal or professional in nature, these situations require more than just technical expertise—they demand discretion, empathy, and unwavering dedication.
Our team of seasoned investigators approaches every case with compassion, confidentiality, and urgency. We are committed to delivering accurate, actionable results in a timely manner—saving our clients not only time, but often significant financial and emotional cost.
We pursue answers that only trained, experienced professionals are equipped to uncover. Every case is handled with the highest ethical standards and a resolute commitment to truth—so that you can move forward with clarity and confidence.
You don’t have to face it alone.
We work for you—count on us.
📞 (210) 870-9791
📧 info@texasinvestigation.agency
MEMBER
PROFESSIONAL, EXPERIENCED, CONFIDENTIAL
Texas Investigation Agency International Tel 210 870 9791
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Texas Investigation Agency International LLC.
15202 Wingstar San Antonio, Texas US 78253
