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Marshall Agency
“This security team has brought much comfort to the members and team members at our current facility, and will do whatever it takes to ensure a safe yet enjoyable experience.”
Best Private Investigators near Pasadena, TX
3 of these agencies are based in Pasadena; the others serve Pasadena from Houston (17 mi), League City (12 mi) and Brooklyn, NY (1412 mi).
6 open 24/7 · 13 open weekends · 20 rated 4.5+ · 12 show a license
Data verified October 15, 2026
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Commando EPI
“Honestly out of all the security companies in Pasadena, Texas I found Nothing beats the piece of mind knowing my property and family is protected.”
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Appropriate Protection Solutions
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Stealth Investigations
- Money
- Scam
- Fee
“They were very professional and took the time to recover the money that was out there that was mine also they kept me up to date what was going on we did check reviews before we gave them any information and Allyson Stevens was great to work with wha...”
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Aces Private Investigations Houston
- Information
- PI
- Company
“Astonishing is all I can say,; very professional,; very thorough,; the services were beyond approach getting the job completed in a timely manner,; this is the best Private investigations I've had the pleasure of working with,; I rate my services 10🌟...”
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Powerhouse Discovery
- Team
- Industry
- Brochures
“We look forward to continuing our partnership with Powerhouse Discovery for future projects, as their exceptional team and outstanding service have undoubtedly earned our trust and loyalty.”
The 24 agencies on this page are the private investigators listed for Pasadena, TX. What each one states about its license, its specialties and the areas it covers comes from its own website; ratings and quotes come from public reviews.
Area overview: Pasadena, TX
23 of the 24 agencies on this page have a rating, from 3.9 to 5.0 across 642 reviews; 5 have 50 or more reviews and 20 are rated 4.5 or higher. When clients rate these agencies on specific qualities, they most often praise professionalism (98%), responsiveness (82%) and quality (70%). The topics that come up most in reviews of the agencies on this page are "communication", "price" and "results". 6 are open around the clock; 13 are open on Saturdays and 11 on Sundays. 12 show a license on their websites and 1 has a BBB rating of A or A+. Domain records put 11 websites of the agencies on this page at ten or more years old; the oldest dates from 1996. 6 offer urgent consultations; 6 offer a free initial consultation and 1 is family- or locally-owned. We have a website on file for 23 of the agencies on this page; 19 publish a contact page and 18 list a public email. We count these figures across the agencies on this page; distances are straight-line, and hours and prices change, so confirm the details with the agency before you book.
Why are investigation agencies outside Pasadena shown here?
3 of the 24 agencies have an address in Pasadena. The others come from other towns. Investigators travel to the subject, so an office one county over is rarely the issue. State licensing is the thing to check.
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Powerhouse Forensics - Digital Forensics Experts
- Team
“I have been relying on Gary and his team at Powerhouse Forensics for various digital investigations and computer forensics services for over 3 years now.”
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Praetorian Protective Services Corporation
- Job
- Company
- Responsive
“PPSC went above and beyond the call of duty by not only attempting service multiple times on a defendant who was deliberately evasive but also performing additional searches which eventually located a third residence where Defendant was successfully ...”
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Janissary
“Thank you Nathan and Dennis for being my family away from family during my career transition.”
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Frizell Group International
“Best place for off duty police officers and investigations”
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Finley Enterprises
“🙏🏾xpozher boutique galleria was blessed to have met such a professional and knowledgeable dream team in technology!”
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EM Investigations
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Jfiu | Joint Fugitive Investigations Unit
“They will go out of their way to provide the right services to their clients.”
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Meyer Defense
- Security
- Stars
- Ethical
“Their extensive experience and resourcefulness were evident as they navigated complex situations with ease, always keeping me informed and updated throughout the process.”
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Texas Investigative & Process Solutions
“She always lets me know where she is at in the process of my matter and even responds to my messages after work hours.”
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Research World Unlimited
“I have a tremendous amount of respect for the owner of this company.”
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Morris Investigations
“Morris got the job done fast and easy, he helped me solve my problems with no other issues.”
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Cardinal Investigations, TX DPS License C28590201
“Thorough and very responsive to questions and concerns during entire investigation.”
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Court Records Research
“I have been using Court Records Research for over 3 1/2 years.”
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Barry Investigations
“I received details regarding arrests, liens and hot checks, traffic violations, businesses, homes and vehicles owned, plus known associates.”
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Advanced Investigative & Screening Solutions
- Course
- Price
- PI
“I have spent thousands of hours on surveillance during my previous 30 years as a federal criminal investigator, and the methods taught here are spot on for the preparation and performance of a variety of surveillance issues one will encounter.”
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Panoramic Investigations
- Information
- Money
- Review
“He literally pulled over on the side of the road (he was driving when I called) and found the contractors home address and texted it to me immediately.”
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Gradoni & Associates
- Job
- Work
- Number
“Carroll hired a private detective to investigate my claims, I thought he was just trying to raise my legal bill, but when the investigator came to court and testified on my behalf, with evidence that they got from God knows where, I knew the light wa...”
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Houston Process Servers
- Company
- Documents
- Price
“I've been around Process Servers in the past and was familiar with their knowledge in the judicial areas so I located them online and was able to find Houston Process Servers who ALSO offers in-jail notarizations!”
Why these companies made our list
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