About Us
Guided by a J.D. perspective. Built for results that hold up.
Led by legal insight, Built for the courtroom
Jasen Armstrong holds a Juris Doctor (J.D.) degree, is not licensed to practice law in Texas, and does not provide legal advice or legal representation. Armstrong Investigations, PLLC provides private investigation services only.
Jasen A. Armstrong, J.D. didn’t come to investigations through a law enforcement background or a security contract. He came through the study of law, and that perspective shapes the way Armstrong Investigations approaches every assignment.
With a Juris Doctor degree and a strong understanding of the rules of evidence, civil procedure, and the documentation standards that matter in legal proceedings, Jasen founded Armstrong Investigations, PLLC to provide professional investigative services that meet the needs of attorneys, businesses, and private clients. His focus is on conducting thorough, objective investigations and delivering clear, well-organized findings that can support informed decision-making.
At Armstrong Investigations, every investigation begins with a clear objective and a methodical plan. Whether the assignment involves process serving, skip tracing, witness interviews, surveillance, or other investigative services, the firm’s emphasis is on accuracy, professionalism, and properly documented results. Rather than offering legal advice or representation, Armstrong Investigations provides factual investigative support that clients and their legal counsel can use as appropriate.
Why The Most Demanding Clients Come To Us
When the stakes are high enough that the investigation itself could determine the outcome, the choice of firm matters more than most people realize until it’s too late.
Legal-Minded, Not Attorney-Referred
Jasen Armstrong's legal background ensures every investigation is conducted with a deep understanding of the rules of evidence and civil procedure.
Technical Depth No Competitor Matches
Our partnership with TCS Consulting and Michael Depew brings 36+ years of accident reconstruction, EDR forensics, and telematics analysis to the table. Most firms can't offer this at any price point.
Evidence Built to Last
Chain of custody isn't a formality here. Every piece of evidence is documented, preserved, and packaged in a way that withstands adversarial scrutiny—because that's the only standard worth working to.
Statewide Reach, National Affiliates
Headquartered in Dallas with reach across Texas and a national affiliate network. Geography rarely limits what we can accomplish for a client who needs results wherever they lead.
Silent Professional Standard
Our operational security is managed as carefully as our evidence files. Our involvement is disclosed only to those who need to know—and our clients never have to explain our presence.
Case Strategy, Not Just Reports
We don't hand off a file and walk away. Our work is informed by the legal or personal strategy it needs to serve—and we communicate accordingly throughout the investigation.
Intelligence that holds up
That’s the standard we set for every engagement. Chain of custody maintained. Evidence gathered within the rules. Files documented in a way that survives cross-examination. If the other side is looking for a reason to exclude our work, they won’t find one.
We serve individuals, families, legal professionals, and corporations across Texas and beyond—and regardless of the case type, the standard never changes.
Dallas-based. Texas-wide. Beyond When Needed
Armstrong Investigations is headquartered in Dallas, Texas—a deliberate base that positions us at the center of one of the country’s most active legal and commercial markets.
Through our strategic affiliation with TCS Consulting and a network of vetted national partners, our effective reach extends well beyond state lines. Wherever the case leads, we can follow—without compromising the quality or continuity of the investigation.
We serve individual clients, family law attorneys, civil litigators, criminal defense counsel, insurance companies, and corporations throughout Texas and across the country.