Best Private Investigators in Northbrook, IL

The highest-rated Private Investigator & Detective companies out of 189 vetted & reviewed in the Northbrook area.

강효흔 공인 탐정 Bruce Kang LPD

강효흔 공인 탐정 Bruce Kang LPD

In Business Since 1998
1901 Raymond Dr, Northbrook, IL 60062
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Hogan Investigative Services

Hogan Investigative Services

(3)
“The service was prompt, professional, and a reasonable price.”
In Business Since 2013
Licensed
Serving Northbrook Area
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Carlson Investigations

Carlson Investigations

(50)
  • Defendant
  • Sheriff
  • Process Server
“I couldn't get my tenant served for months because he kept dodging other process servers but then I hired William and he got inventive and served my tenant in a day.”
In Business Since 2014
Family Business
Licensed
1555 Sherman Ave #306, Evanston, IL
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On Q Professional Investigations

On Q Professional Investigations

(49)
  • Job
  • CCW
  • Instructor
“Instructor Diaz was an extremely knowledgeable instructor who made learning interesting and fun, info was up to date and relevant, I would highly recommend this course to anyone looking to take courses for security or private investigation”
In Business Since 2014
Accepts All Major Credit Cards
3004 W Belmont Ave #1b, Chicago, IL
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Special Solutions

Special Solutions

(8)
Insurance Investigations, Surveillance, Chicago Bodyguard & Executive Protection
“Very satisfied with there professional expertise.”
In Business Since 2015
Coupons & Offers
Emergency Services
Licensed
Serving Northbrook Area
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Scoutlogic Pre-Employment Background Screening

Scoutlogic Pre-Employment Background Screening

(15)
  • Employers
  • Questions
  • Company
“I would highly recommend you work with them and make sure you ask all of your questions and really dig in with them for what your needs are- they are a valuable partner and don't treat you like just another numbered client!”
In Business Since 2016
Free Initial Consultation
Transparent Fees & Pricing
Licensed
Serving Northbrook Area
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Blue Star Security

Blue Star Security

(13)
  • Officer
“Well l like it there it has the hot chocolate in the lobby they have all the cable channels the rooms are nice next door is a burger king and other stores near by the motel price is Good From Monday thru Thursday a bit more on Friday and Saturday”
In Business Since 2022
Licensed
1011 E Touhy Ave # 345, Des Plaines, IL
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U.S. Security and Protective Services

U.S. Security and Protective Services

(3)
“Very professional place well structured i recommend them for their services!!!!”
In Business Since 2012
Emergency Services
2445 W Schubert Ave, Chicago, IL
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Citywide Security Group

Citywide Security Group

(1)
“Because I work there”
In Business Since 2007
Emergency Services
3320 W Foster Ave # 258, Chicago, IL
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International Protective Services

International Protective Services

“INTERNATIONAL PROTECTIVE SERVICES INC. Our Experienced and Highly-Qualified Team are Certified to Provide Basic Security Training, Armed Training, or Concealed Carry Training”
In Business Since 2010
Emergency Services
5901 N Cicero Ave #504, Chicago, IL
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Myers Service

Myers Service

(3)
Missing Persons, Undercover Investigators, Criminal and Civil Investigations
“I spoke to Nerdisa and she was knowledgeable and gracious in answering all of my questions and I had many.”
In Business Since 1998
Licensed
2406 W Fullerton Ave, Chicago, IL
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Courthouse Courier

Courthouse Courier

(6)
“Professionalism from start to finish, expedited services and would definitely recommend them to others, as well as using them again in the future.”
In Business Since 2002
Licensed
1658 N Milwaukee Ave, Chicago, IL
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Marshall Investigative Group

Marshall Investigative Group

(4)
Legal, Internet Presence / Social Media Investigations, Insurance
“From insurance fraud, to workers comp claims, Marshall Investigative Group goes the extra mile to find out critical information about a case.”
In Business Since 2011
Free Initial Consultation
Serving Northbrook Area
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Foresight Investigative Services

Foresight Investigative Services

(6)
Workers' Comp Fraud, Asset Investigations, Infidelity Investigations
“I recently hired Foresight Investigative Services for a sensitive matter, and I couldn't be more impressed with their service.”
In Business Since 2023
Licensed
Serving Northbrook Area
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Forest Security

Forest Security

(15)
  • System
  • DIY
  • Technician
“The cellular coverage in my area changed a year after the alarm was installed FOREST came out immediately and replaced the radio communicator with a new one to account for the cellular service changes in my area which provided uninterrupted protectio...”
5+ Years Experience
Free Initial Consultation
Licensed
Serving Northbrook Area
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H Brown Investigations

H Brown Investigations

(1)
“Harry brown is the most effective investigator i have ever dealt with in all the years of my criminal law practice.”
In Business Since 1999
Serving Northbrook Area
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Chicago PI Services Group

Chicago PI Services Group

(1)
“I might work with them one day!”
In Business Since 2015
Accepts All Major Credit Cards
Cook County, 120 W University Dr suite a, Arlington Heights, IL
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Culper

Culper

“The Culper Spy Ring was the first American intelligence organization during the American Revolutionary War. It was organized in 1778 by Major Benjamin Tallmadge per request of General George Washington and operated on Long Island and New York City. T...”
Emergency Services
Serving Northbrook Area
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Hibernian Strategic Solutions

Hibernian Strategic Solutions

(1)
Services Provided:, Surveillance, Due Diligence
“Our law firm has used Hibernian numerous times for service of process and investigative work.”
In Business Since 2017
Free Initial Consultation
Serving Northbrook Area
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Ginss

Ginss

(1)
“Excellent service and communication.”
In Business Since 2015
Licensed
Bank One Bldg, 1603 Orrington Ave #640, Evanston, IL
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Illinois Protection & Investigation

Illinois Protection & Investigation

Investigations, Compliance Valuation, Security Risk Management
“IPI's team members are either active law enforcement personnel or former compliance professionals who have worked in various capacities conducting multilayered protective and investigative assignments in local, state, and federal agencies. Many of ou...”
In Business Since 2018
Licensed
Serving Northbrook Area
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SCS & Associates

SCS & Associates

Backgrounds, Missing Persons, Consultants
“SCS & Associates, Inc. founded in 1984 and located in the Chicago Illinois area, is a private investigation, asset protection and consulting firm providing high-quality, high-tech informational and investigative services. With unparalleled profession...”
In Business Since 2001
Emergency Services
Serving Northbrook Area
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Detective.com

Detective.com

Identity Theft Investigation, Internet Fraud, Family LAW Investigations
““…Hello, I am interested in contacting Agent S from Detective.com again. He completed a search for my husband and me last November to find our missing daughter. He was successful in locating her in Lubbock, Tx and (…we have a new request). Thank you ...”
In Business Since 1997
Free Initial Consultation
500 Davis St #500, Evanston, IL
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Capital Security & Investigations

Capital Security & Investigations

In Business Since 2003
Accepts All Major Credit Cards
Licensed, BBB Rating: A+
Serving Northbrook Area
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Private Detective Services in Northbrook, IL Cost Estimates

Minimum cost
$300
Maximum cost
$9500
National Average
$1200
Avg Per Hour Rates
$125
$700
$2000
Fair price range is based on 404 cost profiles
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Average Cost $1200
Minimum cost $300
Maximum cost $9500
Avg Per Hour Rates $125

Fair range $700 to $2000 is based on 404 cost profiles.

Why these companies made our list

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