Capital Investigation Services (CIS Austin) is a veteran-owned, licensed private investigation agency serving the entire state of Texas. Our mission is simple: uncover the truth, deliver reliable results, and protect your interests with absolute discretion.

Founder and Chief Investigator, Dennis Marrero is a Peace Officer in the State of Texas. Throughout his law enforcement career Dennis worked investigations involving, sexual assault, robbery and theft, complex narcotics investigations, money laundering investigations, and crime scene investigations. Dennis has accumulated thousands of hours in education and training and has successfully worked and assisted on investigations for local, State, and Federal agencies.

Dennis is trained with specialties ranging from cheating spouses to criminal defense investigations, insurance fraud investigations, and background checks investigations. Regardless of your case, our firm understand the importance of your case and the sensitive issues surrounding confidentiality and conducting discreet investigations.

Founded in 2019, Capital Investigation Services is proudly licensed by the Texas Department of Public Safety. We’ve built a trusted reputation by assisting individuals, law firms, corporations, and insurance companies with accurate, fast, and ethical investigations.

We understand the sensitivity and urgency behind every case. Whether it’s infidelity, asset recovery, missing persons, or legal evidence gathering — our team is committed to providing accurate results while respecting your privacy at every step.

Contact CIS Austin for a no-obligation, confidential consultation. Let’s discuss your needs and create an investigative strategy tailored to your situation.