Best Private Investigators near Magnolia, TX

1 of these agencies is based in Magnolia; the others serve Magnolia from towns including Houston (36 mi), Conroe (17 mi) and Spring (24 mi).

3 open 24/7 · 13 open weekends · 19 rated 4.5+ · 14 show a license

Data verified October 15, 2026

Safesecure 360

Safesecure 360

(12)
  • Team
  • Company
  • Leadership
“Id rank Safe Secure360 in the good if not great column simply because the communication is great, and they treat you like you are a part of the team from day one.”
Licensed
In Business Since 2010
6110 FM 1488, Magnolia, TX
i
CRS Process Servers

CRS Process Servers

(49)
  • Price
  • Affidavits
  • Stars
“Very detailed got to work as soon as I inquired about the service and very professional I definitely recommend Ryan he's top notch and would definitely use him again.”
BBB Rating: A+
In Business Since 2017
Spring, TX · 24 mi from Magnolia
i
My Armor Services

My Armor Services

(23)
  • Company
  • Officer
  • Transport
“What's more is that the officers were so calm, compassionate and encouraging to me, and extremely patient and caring for my son, who was outright disrespectful to them and put up a fight.”
Emergency Services
In Business Since 2011
Free Initial Consultation
Houston, TX · 36 mi from Magnolia
i
International Specialized Investigations

International Specialized Investigations

(25)
  • Company
  • Service
  • Job
“I was in over my head on a case in Ecuador & International Specialized Investigations not only taught me valuable information but went beyond their due diligence to help me find the information I needed to move forward on my case.”
Licensed
In Business Since 2015
The Woodlands, TX · 14 mi from Magnolia
i
Tri-Star Investigations & Process Service

Tri-Star Investigations & Process Service

(6)
“Through the up's and down's for young businessmen of 14 years ago and having a prior business relationship with Marc in Utah, I would strongly recommend to anyone in Texas needing security or investigations work to contact Marc Maier and his busines...”
Licensed
In Business Since 2020
Conroe, TX · 17 mi from Magnolia
i
Tim D. Wilson Investigations

Tim D. Wilson Investigations

Licensed
In Business Since 2005
Free Initial Consultation
Hempstead, TX · 16 mi from Magnolia
i

The 24 agencies on this page are the private investigators listed for Magnolia, 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: Magnolia, TX

21 of the 24 agencies on this page have a rating, from 4.2 to 5.0 across 505 reviews; 4 have 50 or more reviews and 19 are rated 4.5 or higher. When clients rate these agencies on specific qualities, they most often praise professionalism (97%), responsiveness (76%) and quality (57%). The topics that come up most in reviews of the agencies on this page are "communication" and "price". 3 are open around the clock; 13 are open on Saturdays and 5 on Sundays. The services the agencies on this page list most often on their websites are background investigations (2), criminal defense (2), executive protection (2), private investigation (2) and process service (2). 14 show a license on their websites and 1 has a BBB rating of A or A+. 17 have ten or more years of experience, the longest 33 years. 4 offer urgent consultations and 5 offer a free initial consultation. We have a website on file for all 24 of the agencies on this page; 23 publish a contact page and 15 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.

Which investigators listed for Magnolia describe their work online?

All 24 agencies on this page have a website on file. Those pages are where an agency states its license, the kinds of investigation it takes on, and whether it works mainly for attorneys, for companies or for private clients. That last point changes how a report gets written.

Advanced Investigative & Screening Solutions

Advanced Investigative & Screening Solutions

(49)
  • Information
  • Exam
  • PI
“Very interesting conversation when you cannot get the police to help you after a grand theft Auto case with a side of ten years of harassment and defamation and no restitution”
Licensed
In Business Since 1999
Transparent Fees & Pricing
Houston, TX · 36 mi from Magnolia
i
GPI Defense

GPI Defense

(44)
  • Team
  • Individual
  • Working
“The team is very professional and very helpful we had a small get together and we're very helpful keeping us safe and the environment under control would definitely want them to keep patrolling the area.”
Licensed
In Business Since 2017
Free Initial Consultation
Spring, TX · 24 mi from Magnolia
i
Leatherneck Investigations

Leatherneck Investigations

(28)
  • Honest
  • Divorce
  • Results
“I had a deadline to meet and if it wasn't for his help I would not have got the information I needed to proceed with a positive outcome on a case I have been working on for almost 2 years.”
Emergency Services
In Business Since 2014
Free Initial Consultation
Spring, TX · 24 mi from Magnolia
i
Gradoni & Associates

Gradoni & Associates

(40)
  • Information
  • Communication
  • Number
“Twice I've had yo use Gardoni and Associates and both times they were successful in less than 24 hours when process servers and constables couldn't get the job done.”
Licensed
In Business Since 1993
Accepts All Major Credit Cards
Houston, TX · 36 mi from Magnolia
i
Atlas Security & Investigations

Atlas Security & Investigations

(15)
  • Company
“She treated her supervisors and colleagues with respect (especially me), but she would never associate with anyone who did not exhibit similar good values and morals.”
In Business Since 2015
Houston, TX · 36 mi from Magnolia
i
Metropol Security Services

Metropol Security Services

Emergency Services
In Business Since 2010
Houston, TX · 36 mi from Magnolia
i
AMS Investigations

AMS Investigations

(4)
“I was given excellent service and I highly recommend this firm!!!”
BBB Accredited
In Business Since 2004
Humble, TX · 32 mi from Magnolia
i
Prime Investigations and Legal Services

Prime Investigations and Legal Services

(12)
  • Communications
  • Law
“Worked hard to find a solution and they generally cared about me.”
Licensed
In Business Since 2021
Transparent Fees & Pricing
28 mi from Magnolia
i
Invictus Security and Investigations

Invictus Security and Investigations

(2)
“Experienced and invested.”
Licensed
In Business Since 2020
Conroe, TX · 17 mi from Magnolia
i
Thomas Polygraph Services

Thomas Polygraph Services

(4)
“I drove over an hour and a half just to use him because he was the only examiner in Houston who really took the time to answer my questions on the phone.”
In Business Since 2008
Conroe, TX · 17 mi from Magnolia
i
Texas Polygraph Services

Texas Polygraph Services

(4)
“He proved my innocence!”
In Business Since 2005
Conroe, TX · 17 mi from Magnolia
i
US Security Investigations

US Security Investigations

(2)
“Good customer service”
In Business Since 2017
Houston, TX · 36 mi from Magnolia
i
Morris Investigations

Morris Investigations

(5)
“A no nonsense approach to getting the job done quick and efficient.”
Licensed
In Business Since 1999
Transparent Fees & Pricing
34 mi from Magnolia
i
Checkmate Investigative Field Services

Checkmate Investigative Field Services

(1)
“Professional and will get the job done.”
Free Initial Consultation
In Business Since 2011
Spring, TX · 24 mi from Magnolia
i
Markham Investigations

Markham Investigations

Licensed
In Business Since 2010
Spring, TX · 24 mi from Magnolia
i
Resultquest

Resultquest

Licensed
In Business Since 2014
Conroe, TX · 17 mi from Magnolia
i
Asset Locate Services

Asset Locate Services

Licensed
Houston, TX · 36 mi from Magnolia
i
Kelmar Global

Kelmar Global

Licensed
In Business Since 2014
Emergency Services
21 mi from Magnolia
i

Why these companies made our list

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