Expert Private Investigators in Central Texas – Over 130 Years of Combined Experience
Special Investigations Group (SIG) is a fully licensed and insured private investigative agency in Central Texas, headquartered in Cedar Park, just outside Austin, TX. With over 130 years of combined investigative experience, our team includes former law enforcement officers, retired federal agents, military veterans, paralegals, insurance investigators, and other experienced professionals.
We serve clients across all of Central Texas with discreet, thorough, and results-driven investigations. Special Investigations Group proudly provides licensed private investigator services across Central Texas, including Austin, Buda, Canyon Lake, Cedar Park, Georgetown, Hutto, Kyle, Leander, Liberty Hill, New Braunfels, Pflugerville, Round Rock, San Marcos, Taylor, and all surrounding communities.
Trusted Texas Private Investigators for Criminal & Civil Cases. At SIG, we specialize in civil and criminal investigations, including but not limited to:
Child custody investigations
Surveillance investigations
Divorce investigations
Cheating spouse investigations
Fraud Investigations
Capital murder investigations
Sex crime investigations
Drug crime defense
Weapons charges
Felony case investigations
Appeals and post-conviction investigations
Missing person investigations
Covert operations
Witness interviews
Discovery and review
and more...
Special Investigations Group proudly maintains a 100% positive client review rating for our investigation services across Central Texas. Clients consistently commend our professionalism, confidentiality, and accurate, detailed reporting. Our commitment to results-driven investigations has earned us a reputation as one of the most trusted private investigation firms in Texas.
From 2011 to 2025, our team worked on more than 90 high-profile felony and capital cases, with over 70% resulting in full dismissals or significantly reduced charges—a clear reflection of our expertise, dedication, and strategic investigative approach.
Who We Serve. We routinely assist:
Private citizens across Texas and the United States
Criminal defense attorneys
Civil attorneys
Judges and prosecutors
Insurance companies
Corporations and small businesses
Whether you’re facing serious criminal charges, a cheating spouse, fighting for custody of your children, or need a background check for business or private purposes, SIG delivers confidential, professional results you can rely on.
Why Choose Special Investigations Group?
When you need answers, trust matters. At Special Investigations Group, we bring decades of experience in delivering professional, confidential, and results-driven private investigation services in Central Texas. Our team of licensed investigators is known for its precision, discretion, and relentless pursuit of the truth. Whether you're dealing with a civil case, infidelity concerns, insurance fraud, background checks, or criminal defense investigations, we tailor each investigation to your unique needs. Clients choose us because we combine cutting-edge investigative tools with a deep knowledge of Texas law, ensuring legal compliance and accurate results. With a 100% client satisfaction rating and a reputation for integrity, Special Investigations Group is the trusted choice for private investigation services in Texas.
Led by Owner/Manager and Licensed, Accredited Continuing Education Instructor Chris Monroe, Special Investigations Group is committed to continuing education and professional development. Every private investigator on our team is required to meet strict annual training standards in areas such as:
Criminal justice and case law
Civil Law
Covert surveillance
Death investigations
Digital forensics
Witness interviews & evidence collection
Background investigations
Accident investigations
Ethics and many more
We understand how stressful and life-altering legal challenges can be—and we fight hard to uncover the truth and get you the evidence you need, for the peace of mind you deserve.
If you’re searching for a private investigator in Austin, Texas, don’t settle for less than the proven team at Special Investigations Group, your Trusted Private Investigator.