Best Private Investigators in Houston

Why These Private Investigators?

Our goal is to connect people with the best local experts. We scored Houston Private Investigators on more than 25 variables across five categories, and analyzed the results to give you a hand-picked list of the best.

Reviewed Curated Top Picks 552 339 20

Our Selection Criteria:

  • 1. Availability

    Consistently approachable and responsive, so customers never feel ignored.

  • 2. Qualifications

    Building customer confidence with licensing, accreditations, and awards.

  • 3. Reputation

    A history of delighted customers and outstanding service.

  • 4. Experience

    Masters of their craft, based on years of practical experience and education.

  • 5. Professionalism

    Providing service with honesty, reliability, and respect.

Read more about our selection process


ACTA-PANNELL, in Sugar Land, is a Houston Metro private detective agency whose staff members are available by phone 24/7. Investigators at the agency use photography and videotaping, undercover surveillance, electronic vehicle tracking, background checks, and other information-gathering techniques. The firm opened in 1969, and it was one of the first detective agencies statewide to become licensed.

Sugar Land, TX 77478


CDI Investigations LLC

CDI Investigations LLC, in Katy, is an investigations firm that specializes in insurance fraud, skip tracing, background checks, criminal defense, surveillance, and civil litigation. Clark Dickensheidt, the firm's founder, owner, and primary investigator, is a 1987 graduate of Western Illinois University, where he studied Law Enforcement with a minor in Security. After several years working with the United States Marshal Service, and then as a private investigator with Equifax Services, he opened CDI Investigations in 1995. It was located in California until 2001, when Mr. Dickensheidt reopened the firm in the Houston Metro.

Katy, TX 77450



Tomball-based E-Investigations is a private investigations agency that specializes in digital forensics, the art of extracting and decipherinng Electronically Stored Information (ESI) from desktops, laptops, smartphones, and other electronic devices. E-Investigations operates multiple offices, in Austin, Houston, Dallas, Lubbock, Lufkin, and Brownsville. For all of its cases, including those involving family law, intellectual property theft, non-compete clauses, fraud, and embezzlement, the team combines these cutting-edge digital investigation techniques with traditional P.I. methods.

Tomball, TX 77377


International Specialized Investigations

International Specialized Investigations is a Houston P.I. agency that can work throughout the state as well as, uniquely, in Mexico. The experienced, multidisciplined team of private investigators is available 24/7 for clients in the Houston Metro, as well as clients living in and around Mexico City. English and Spanish langauge services are available. All investigators at International Specialized Investigations are licensed, and have received training in providing top-notch customer service.

Houston, TX 77062


My Armor Services, Inc.

My Armor Services, Inc. is a Houston private detective agency, providing its services to professionals, students, out-of-state visitors, or stay-at-home parents (to name just some of the clients whom My Armor Services, Inc. has helped over the years). Services include church safety investigations, infidelity investigations, backgroudn checks, and personal protection. Lee Pace is the agency's President and CEO.

Houston, TX 77044


Wrong city? Here are some nearby places: