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Best Private Investigators in Chicago

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1Source Private Investigations logo

1Source Private Investigations

Crown Point, IN 46307
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1Source Private Investigations is a private investigative agency in Crown Point that was founded in 1999 and has experience in many areas of private investigations with emphasis on legal investigations. The agency carries a $1,000,000 in business liability insurance for errors and omissions coverage even though the regulation only requires $100,000. The agency has “2,000 plus hours of courtroom experience”.

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Heritage Investigations and Surveillance logo

Heritage Investigations and Surveillance

Chicago, IL 60602
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Heritage Investigations and Surveillance is a licensed private investigative agency in Chicago with over 33 years experience in the area. The agents are licensed by the state of Illinois and are specially trained to conduct investigations and surveillance regarding marital infidelity and child custody. Other services of the agency are alimony termination, fraud investigations, surveillance services, and GPS tracking in the case of cheating spouses.

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Illinois Investigative Solutions logo

Illinois Investigative Solutions

Naperville, IL 60540
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Illinois Investigative Solutions is a client oriented private investigative agency in Naperville offering a range of services including matrimonial cases, due diligence, criminal, civil, workers compensation, and attorney support. Other services provided by the agency include locating missing persons and technical surveillance counter measures. The owner and chief investigator of the agency was an investigator with the United States Army Criminal Investigation Division Drug Suppression Team, where he was awarded the Army Achievement Medal for his contributions.

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James Joyce Investigations logo

James Joyce Investigations

70 West Madison Street, Chicago, IL 60602
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James Joyce Investigations is a firm of private investigators headquartered in Chicago. The experts at this company are dedicated to helping their clients gather accurate information through their individualized investigative services. They can assist in background investigation, activity checks, criminal record checks, tenant screening, and missing person investigation. James Joyce Investigations has helped attorneys, academic institutions, and government agencies through their discreet techniques. Operatives at this company can also perform cheating/adultery investigations for clients who are doubtful about their partners.

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Lawrence Ryan Investigation logo

Lawrence Ryan Investigation

Oak Lawn, IL 60453
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Lawrence Ryan Investigation is a private investigative agency in Oak Lawn whose “strength is field work.“ The agency’s services include attorney litigation and process support, corporate investigation and risk management, and domestic investigations. The agency brings over 38 years of law enforcement and investigations experience. A client says of the private investigative agency, “I confidently recommend Lawrence Ryan Investigations, Inc. because all my expectations were exceeded.”

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Michael P. Slevnik Private Detective logo

Michael P. Slevnik Private Detective

Hickory Hills, IL 60462
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Michael P. Slevnik Private Detective in Chicago offers criminal defence investigations, missing persons investigations, firearms training, NRA basic pistol courses, covert surveillance, background investigations, and much more. Michael Slevnik is a Certified Illinois Concealed Carry Instructor, an NRA Certified Pistol Instructor, an NRA Certified Rifle Instructor, an NRA Certified Shotgun Instructor, an NRA Personal Protection Inside the Home Instructor, and an NRA Personal Protection Outside the Home Instructor. Mr. Slevnik is also a member of the International Law Enforcement Educators and the Trainers Association.

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Mid-West Protective Service logo

Mid-West Protective Service

Chicago, IL 60641
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Mid-West Protective Service offers an array of protective, investigative and security services in Chicago and opened in 1993. The agency’s services include private investigations, surveillance, polygraph and lie detector exams, bodyguard services, security, eavesdropping, countermeasures, and security consulting. The agency’s president has over 30 years experience in law enforcement, private investigations, and security. The firm is a member of the American Polygraph Association, the Law Enforcement Alliance of America, the National Association of Investigative Specialists, and the National Association of Legal Investigators.

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MSI Investigative Services logo

MSI Investigative Services

Chicago, IL 60647
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MSI Investigative Services is a private investigative agency in Chicago that has been serving private individuals, attorneys, government, and businesses for over 50 years. The agency’s services include lie detection, cell phone forensics and cellular data recovery, debugging and bug sweeps, computer forensic data recovery, cheating partner, missing persons, surveillance and much more. The agency has an A+, Complaint-free, Accredited Better Business Bureau rating as a testament of high-quality business practices.

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Northshore Process Service Network logo

Northshore Process Service Network

70 West Madison St, Chicago, IL 60602
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Northshore Process Service Network in Chicago, Illinois, is a private investigation firm offering its services to residents and business owners throughout the greater Chicago area. Doing business for more than a quarter-century, the firm offers an array of services, including workplace and theft investigations, surveillance, process service, pre-marital and pre-employment searches and screenings, and judgment recovery. It also takes on insurance claims investigations, juror screenings, activity checks, adultery/cheating investigations, and asset searches.

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ONQ Protection and Investigation Services logo

ONQ Protection and Investigation Services

Chicago, IL 60618
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ONQ Protection and Investigation Services is a private investigative agency in Chicago, founded in 2011 by a former Homeland Security ICE-Investigator with over 10 years experience. The agency’s areas of expertise include child custody, background investigation, witness statement, undercover assignment, electronic debugging, and much more. The agency also offers training courses for concealed carry weapons, firearm training, and a permanent employee registration card security officer course. The agency is a member of NCiSS, NISP, and WAD.

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Robert G. Hanrahan Investigations logo

Robert G. Hanrahan Investigations

Chicago, IL 60611
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Robert G. Hanrahan Investigations is a licensed private investigation firm in Chicago providing complex intelligence gathering services to law firms and businesses as well as private individuals since 1956. The firm’s services include matters such as personal injury, product liability, environmental issues, criminal activity, and trademark infringement, with a major focus on private investigations involving plaintiffs, personal injury attorneys, and asbestos litigation. The firm has over hundred trials to its credit and has assisted attorneys with over $1 billion dollars in settlements or verdicts. In addition, the firm has also photographed and videotaped hundreds of accidents.

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Subrosa Investigations logo

Subrosa Investigations

Glenview, IL 60025
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Subrosa Investigations is a private investigative agency in Glenview offering litigation support to attorneys and insurance companies, enhanced background checks for private equity, fund of funds, hedge funds and institutional investors, pre-employment background checks for multi-national corporations, and intellectual property and trademark enforcement for the retail sector. The agency is a member of the National Council of Investigation and Security Services, the Arizona Association of Licensed Private Investigation and the Special Agents Association.

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VTS Investigations logo

VTS Investigations

Chicago, IL 60611
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VTS Investigations is a premier Chicago private detective, security and process serving agency founded in 1979. The firm has extensive experience dealing with investigative issues such as asset searches, computer forensics, eavesdropping sweeps, litigation support, fraud and theft investigations, and surveillance. The firm is fully insured and licensed for investigative duties in the area. The investigative agency is affiliated with different associations including the World Association of Detectives, the National Association of Legal Investigators, the Associated Detectives of Illinois, and the National Council of Investigation.

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Frequently Asked Questions

Q: How much do private investigators make?

A: According to the U.S. Bureau of Labor Statistics, the annual median wage for private investigators in 2020 was $53,320. Entry-level private investigators with only a high school diploma earn around $30,000, while those with a criminal justice bachelor's degree and over five years of experience make up to $84,000 annually.

Q: How long does it take to become a private investigator?

A: The most direct path for this career is getting a bachelor's degree in criminal justice, which usually takes four years. Then take a one-year internship in an investigative firm to gain hands-on experience. Having done this, you can count yourself as a private investigator.

Q: How do I get a private investigator license?

A: Different states have different regulations and requirements before issuing a license. Some of the most common qualifications include completing a private investigation course, two years of work experience, no previous criminal record, and weapons permit for armed personnel. Private investigators are also regularly tested to ensure the validity of their certification.

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