Gold Coast Investigations is a provider of high quality, cost effective attorney support services as well as Investigative services in the Chicago area. We are fully licensed and insured with all the requirements of the state of Illinois. Our professional Investigators and in-house staff will provide you with a quick turnaround, constant communication, and accurate information. By enlisting the services of Gold Coast, you are getting over 25 combined years of experience in infidelity investigation in Chicago. You can feel confident that your cases are being handled by a professional staff.

Serviced Areas

  • The Greater Chicago Area

Contact Details

  Person Gold Coast Investigations
  City Chicago, IL
  Zip Code 60634
  Address 3656 N. Pacific
  Phone Number (773) 677-3855

Business Representative

Gold Coast Investigations


John Hillmann is a veteran investigator learning the trade as a Violent Crimes Detective in Chicago. For over 18 years John has conducted numerous highly complex investigations receiving many department awards for his efforts. John is a graduate of Loyola university where he received a business degree. After learning the trade, John shifted his efforts to private investigations where he has become highly skilled in domestic investigations of all sorts. John primarily directs his effort towards surveillance for infidelity and other domestic cases. John has successfully documented numerous cases of infidelity which have been used by clients to confirm their suspiciouns or aid in divorce proceedings.

  • I would not recommend this business
  • None
  • All.

Really bad service, he always was busy to work in my case, no sources to find information, I ended finding the info myself, bad service.

Value for moneyI expected more, really bad service, no comunication.
Service & supportLack of interest on working my case, hard to reach.
Overall ratingFair