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Prominent Investigations
- Communication
- Information
- Job
“Very professional highly recommended this guy is amazing!!!”
Best Private Investigators near Warren, MI
2 of these agencies are based in Warren; the others serve Warren from towns including Clinton Twp (9 mi), Detroit (9 mi) and Livonia (19 mi).
9 open 24/7 · 15 open weekends · 15 rated 4.5+ · 4 show a license
Data verified October 18, 2026
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AJP Enterprises
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Eye Spy Detective Agency
- Needs
- Phone
- Information
“I've known the owners of the Eye Spy Detective Agency for several years now and they are undoubtedly the best at what they do to assist their customers and clients with any issues that need to be resolved and or addressed...”
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ICU Investigations
“Icu investigations gave us superb results, kept in contact with us many times in a day and night regarding our case, and got the results we needed for our case!”
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TMH Security Service
- Schedule
- Bosses
- Employed
“TMH Security great company pays weekly gives overtime if wanted excellent vehicles to use free uniform good pay and affordable health care plan for the employees.”
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H&R Process Serving
- Job
- Company
“Our office is out of state from where this Process Server is based but they were able to work with us to get things done through a time difference and the pandemic.”
The 24 agencies on this page are the private investigators listed for Warren, MI. 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: Warren, MI
21 of the 24 agencies on this page have a rating, from 4.0 to 5.0 across 383 reviews; 3 have 50 or more reviews and 15 are rated 4.5 or higher. When clients rate these agencies on specific qualities, they most often praise professionalism (96%), responsiveness (79%) and quality (68%). 9 are open around the clock; 15 are open on Saturdays and 13 on Sundays. The services the agencies on this page list most often on their websites are background checks (3), surveillance (3), alive & well checks (2), private investigation (2) and process service (2). 4 show a license on their websites and 3 have a BBB rating of A or A+. Domain records put 19 websites of the agencies on this page at ten or more years old; the oldest dates from 1999. 9 offer urgent consultations; 1 offers remote or virtual consultations; 1 offers payment plans and 5 offer a free initial consultation. 1 has Spanish-speaking staff. We have a website on file for 22 of the agencies on this page; 19 publish a contact page and 16 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 Warren shown here?
2 of the 24 agencies have an address in Warren. 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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Quest Research Group
“Very professional, and always gets results.”
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Metro Protective Services
- Security Company
- Job
“Sam at Metro Protective Services was super helpful; responded to my inquiry in a timely and professional manner and quoted me a fair price for exactly what I requested.”
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Advantage Investigations and Research
- Solid
- Information
- Company
“As a professional investigator with 25 years in the business, I can say that this is one of the most professional companies I have had the pleasure of working with.”
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Metro Detective Agency
- People
- Evidence
“I've contacted a few private investigation companies in the past but none of them compare to the reliability of Metro detective agency The job was done in a timely manner at a great price.”
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Eastern District Investigations
“With Joe's years of experience and key relationships, he and his team have the capability to provide additional support in each of those areas to ensure a seamless transition and 100% resolution to my case.”
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Atlas Investigations & Research
“You both went above and beyond in helping in my child custody case success.”
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Background Check Central
“Very professional team who always helps with large background request to keep it flowing smooth as possible.”
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ASG Investigations
- Information
“Within a day of contacting Dan Klimek, he went to work investigating our issue, maintained both full transparency with regard to what we should expect and constant communication, and then proceeded to complete the job very quickly and competently.”
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Pyro Technical Investigations
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Drexel Hereford
- Letter
“I was a seventy-year-old widower living tenuously on social security and a quickly dwindling IRA when I received, out of the blue, a letter from Pam Hedman of Drexel Hereford.”
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Sherlock Investigations
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Jackson Services - Private Investigations
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RCT Forensic and Valuation Services
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JRM Investigative Services
“Very professional owner of company.”
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Securiteam Protection Services
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Insite Investigations
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Jane Doe Investigations
- Company
- Questions
- Team
“Jane did a awesome job, from the first time I called until my case was finished she always made sure my concerns were listened too and everything was done to make sure the case was perfect.”
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ACS Professional Investigations
“Listened carefully to my issue and made excellent recommendations to resolve my issue.”
Private Detective Services in Warren, MI Cost Estimates
Minimum cost
$359
Maximum cost
$11338
National Average
$1433
Avg Per Hour Rates
$150
$836
$2387
Average price range is based on 325 cost profiles
Why these companies made our list
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