Background investigations
Identity, criminal, civil litigation, employment, and reputational research — analyst-verified, county-level.
Texas· San Antonio
Private Investigator in San Antonio, Texas.
OnTrial provides licensed private investigations and enterprise intelligence in San Antonio, Texas — background investigations, due diligence, asset searches, surveillance, and litigation support for the region's healthcare, business, and legal communities. Analyst-verified, Texas DPS licensed.
Licensed by the Texas DPS (#C31261501). Analyst-verified. Fixed cost per engagement, with rush available on most reports.
- Texas DPS licensed
- Private Investigations Company License #C31261501 Verify →
- 100% veteran & LEO
- Every investigator and analyst a veteran of the U.S. military or law enforcement
- 1,000+
- Reports completed
- Analyst-verified
- Source-cited findings, documented chain of custody with SHA-256 hashed evidence
The work
Investigations we provide in San Antonio.
Due diligence
Pre-transaction diligence on principals, counterparties, and targets — litigation, regulatory, adverse-media, and beneficial-ownership context.
Asset searches & recovery
Real property, vehicles, business interests, accounts, judgments, and cryptocurrency accounts tied to a subject.
Surveillance
Licensed sub rosa surveillance and activity checks, documented as timestamped, evidentiary-grade video.
Litigation investigations
Party and witness workups, witness location and vetting, and evidence capture for civil matters.
Private client
Discreet intelligence for individuals, families, and family offices — vetting, diligence, and reputation work, handled in confidence.
Serving Bexar County
Built for how San Antonio works.
Intelligence, delivered through a secure client portal — with operators in the field when a matter calls for it.
San Antonio pairs a large healthcare and bioscience economy with one of the fastest-growing metros in the country and a busy Bexar County court system. OnTrial supports the region's healthcare and business organizations with executive and vendor diligence, its litigators with party, witness, and asset investigations, and its private clients with discreet personal intelligence.
OnTrial is headquartered in Austin and serves San Antonio and the surrounding Bexar County area. Every finding is verified by an analyst before it reaches you.
Also serving across TexasAll of Texas →Austin →Houston →Dallas →
Typical engagements
What San Antonio clients order.
- Executive and vendor background investigations for healthcare and business organizations
- Litigation investigations before the Bexar County courts
- Sub rosa surveillance and AOE/COE for insurance-defense matters
- Due diligence on principals, counterparties, and targets
- Asset searches, tracing, and post-judgment enforcement
- Discreet private-client and family intelligence
Why the work holds up
Licensed, verified, defensible.
Every finding is sourced and analyst-verified. Every operator is licensed.
Every internal role at OnTrial is held by a veteran of the U.S. military, federal law enforcement, or state / municipal law enforcement — by mandate.
SOC 2 aligned; FCRA, GLBA, and CCPA compliant. AI-governance posture is documented — see AI Governance and Data Security.
OnTrial, LLC is licensed by the Texas Department of Public Safety as a Private Investigations Company (#C31261501).
FAQ
Private investigation in San Antonio, explained.
- Is OnTrial licensed to operate in San Antonio?
- Yes. OnTrial, LLC is licensed by the Texas Department of Public Safety as a Private Investigations Company (#C31261501), which covers San Antonio and Bexar County.
- Do you have investigators in San Antonio?
- Yes. OnTrial is headquartered in Austin and deploys licensed operators across San Antonio and Bexar County; most intelligence work is ordered and delivered directly through the secure client portal.
- What kinds of cases do you handle in San Antonio?
- The full capability set: background investigations, due diligence, asset searches, surveillance, litigation investigations, and discreet private-client work — for companies, law firms, and individuals.
- Does OnTrial handle family law matters in San Antonio?
- Yes, at the direction of counsel. Family law investigations are retained through the attorney of record and cover tracing of community and separate property, lifestyle documentation, and conduct relevant to conservatorship for Bexar County family courts.
- Does OnTrial support insurance defense in San Antonio?
- Yes. Defense counsel, carriers, and TPAs use OnTrial for sub rosa surveillance, claimant backgrounds, and AOE/COE investigations on Bexar County claims. See insurance defense.
- What does a private investigator in San Antonio cost?
- Reports are fixed cost, with no subscription or monthly fees; custom engagements are scoped and quoted at intake. Pricing depends on scope, with rush turnaround available when a matter requires it.
Start an engagement in San Antonio.
Become an OnTrial client and order directly through the secure client portal. No subscription, no monthly fees.