Granite City, IL9 Private Detectives near you

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Granite City Private Detectives

Browse these private detectives with great ratings from Thumbtack customers in Granite City.

  • 25 years in business
  • 8 hires on Thumbtack
James S.
Verified review

Absolutely great experience with they provided a written contract and started on my case immediately. Within the last 2 days they have obtained the evidence of my wife running around with a co worker. I have the pictures and video to prove it. Excellent company and Randy Carpenter was professional and put me at ease.

  • 21 years in business
  • 1 hire on Thumbtack
Roy M.
Verified review

Michael is a man with a good eye for detail and compassion for others. His reputation is that of a man who takes life serious and cares for all in need.


We are a full-service private investigation firm, located in the heart of Clayton. You can speak directly to a fully licensed and insured private investigator, 24 hours a day. We personally answer the phones; there are no answering service or recordings. We bring 20 years of investigative experience and unlimited resources and contacts to every case we handle. There is no case that is too big or too small; everything is a top priority. From small claims cases to high-profile cases, we offer the same professional integrity and outstanding service, guaranteed. We also offer the best process server program in the Midwest.


Cornerstone Investigations & Intelligence is a full-service, licensed private investigation firm located downtown in St. Louis, MO specializing in surveillance, investigations, protective services and crisis management.


We are excellent process servers in the Midwest area; we serve all of Illinois, except Cook County area, and all of the State of Missouri. We are licensed and insured, and are licensed within the city of St. Louis. We have been hired by law firms who have hired numerous other private investigators, and have used the local sheriff's offices to locate and serve there most difficult cases. We have assisted various law enforcement agencies in locating fugitives and other wanted persons. We are a dedicated full-time detective agency, 24-7-365.


ICS of Missouri offers a complete array of investigations for Missouri, and has private investigators in every major metro area. Whether your case involves fraud, adultery, missing persons, infidelity or extramarital affairs, child custody, background checks, asset searches, surveillance, process service, or any of our other services, ICS of Missouri can find the resolutions you need, in a professional and discreet manner.

  • 15 years in business

We specialize in surveillance, process service, skip trace, defense and criminal investigations, work compensation, locates, photography, court research, witness interviews, and child abduction and custody investigations.


Vernon Nelson is one of the providers who offer infidelity investigations and private detective services. He is available for your needs.


If you are searching for a team in Granite City who will do private eye investigations, consider hiring this firm. This private investigation firm is always available at your convenience.

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