Oak Park, IL

Popular Cities

Oak Park, IL
Join as a Pro

Best Private Investigators in Oak Park, IL

The highest-rated Private Investigator & Detective companies out of 199 vetted & reviewed in the Oak Park area.

View Profile
Michael J. Brennan Injury & Accident Lawyer

Michael J. Brennan Injury & Accident Lawyer

(46)
Wrongful Death, Workers’ Compensation, Nursing Home Abuse
“Again with that aggressive and very knowledgeable understanding of the law (in my case traffic laws/violations) he was able to get me out what seem to be for sure a traffic fine”
Free Initial Consultation
In Business Since 2002
Emergency Services
Accepts All Major Credit Cards, Check, Cash
16521 S 106th Ct, Orland Park, IL
i
View Profile
Lawrence Ryan Investigations

Lawrence Ryan Investigations

(23)
  • Job
  • Company
“I called him to get some footage from my neighbor and it was the last day the footage was available and he told me that “ we are going make it happen “ thanks to that footage he collected I won my case!”
In Business Since 2016
Emergency Services
Serving Oak Park Area
Featured

When you are looking for a way to get the information that is relevant in your case, hiring an independent private eye may be just what's needed. They can help gather hard evidence and put together pieces of puzzles. Lawrence Ryan Investigations is an industry-leading investigative, research, and cyber-defense services firm. We combine multidisciplinary expertise with cutting-edge technology to gather critical intelligence so our clients can make better decisions and protect their interests. Based in Chicago, with our decades of experience, we have built an international network of resources to provide global investigative reach. We are the best-reviewed private investigation firm in Chicago, IL. We handle issues quickly and quietly. Contact us today to learn your options.

i
View Profile
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 Oak Park Area
i
View Profile
RM Global Security Consultants

RM Global Security Consultants

(1)
“RM Global Security did a fantastic on my security job.”
In Business Since 2019
Licensed
1755 Park St Suite 200, Naperville, IL
i
View Profile
Larsen Forensics

Larsen Forensics

“NOTICE. As of June 30, 2022, Larsen Forensics & Associates, Inc. will be closed after more than a decade in business. All client inquires will be referred to trusted long-time Larsen Forensics Associate”
In Business Since 2006
Free Initial Consultation
Serving Oak Park Area
i
View Profile
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 Oak Park Area
i
View Profile
Chicago Loss Prevention Group

Chicago Loss Prevention Group

“At Chicago Loss Prevention Group, LTD. we have earned our reputation for quality by providing real value in the real world. There is no magic in the security business; superior service is more expensive than inferior service. Though a higher paid, mo...”
In Business Since 1996
Serving Oak Park Area
i
View Profile
Argus Services

Argus Services

What Type of Person am I Hiring?, What is my Competition Doing, and How Will it Affect me?
“Unlike most of our similar competition, Argus Services specializes their investigative services for corporate America, ensuring the utmost competence and skill for our clients.”
In Business Since 1999
Serving Oak Park Area
i
View Profile
Addition Technology

Addition Technology

“Intacs Corneal Implants are a minimally invasive surgical option for individuals with keratoconus who are experiencing intolerance to contact lens and are facing a corneal transplant. Intacs Corneal Implants may be the best possible option to stabili...”
In Business Since 2001
ISO, ISO Certified
Serving Oak Park Area
i
View Profile
Northshore Process Service Network

Northshore Process Service Network

(37)
  • Price
  • Defendant
  • Company
“I have been using them since before COVID and their professionalism, attention to detail, customer service, employees, timeliness, and services are leaps and bounds better than ANY other process server I've used or heard of.”
In Business Since 2002
Emergency Services
Licensed, BBB Rating: A+
208 W Washington St APT 806, Chicago, IL
i
View Profile
Carlson Investigations

Carlson Investigations

(50)
  • Job
  • The Future
  • Sheriff
“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
i
View Profile
Williams & Nickl

Williams & Nickl

(48)
Social Workers, Psychologists, Agencies, Inspector General and Dhfs
“Williams and Nickl are unparalleled in their knowledge and dedication when it comes to Illinois Concealed Carry Licenses (CCL) and Firearm Owner's Identification (FOID) cards.”
11+ Years Experience
1720 W Division St 2nd Floor, Chicago, IL
i
View Profile
On Q Professional Investigations

On Q Professional Investigations

(49)
  • Know
  • Security
  • CCW
“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 2013
Accepts All Major Credit Cards
3004 W Belmont Ave #1b, Chicago, IL
i
View Profile
RA Private Investigation & Security

RA Private Investigation & Security

(18)
  • Money
  • Matter
  • Company
“Having to sue anyone, especially a former friend, is stressful enough, and after the County Sheriff failed to serve the defendant in my case, I took to Google for a solution.”
In Business Since 2020
Free Initial Consultation
2935 S Halsted St, Chicago, IL
i
View Profile
Chicago Executive Protection - Secure Options Consulting

Chicago Executive Protection - Secure Options Consulting

(4)
Workplace Violence Security, Residential Security Teams, Protective Services
“Beyond their impressive credentials, their adaptability to our ever-evolving daily challenges, from having guards arrive ahead of schedule to staying late for unforeseen events, has been commendable.”
In Business Since 2011
Emergency Services
Licensed
River Point, 444 W Lake St 17th floor, Chicago, IL
i
View Profile
PCI Investigations

PCI Investigations

(4)
“So I can find out a lot if needed but he was able to find out stuff I had no clue about and within hours.”
In Business Since 2020
Free Initial Consultation
Emergency Services
444 N Michigan Ave #1200, Chicago, IL
i
View Profile
Confidential Protective Services

Confidential Protective Services

(21)
  • Money
  • Legal
  • Conceal and Carry
“Instructor Darras was very courteous, professional and has a wealth of knowledge regarding state and federal laws regarding the use of using and carrying firearms.”
In Business Since 2000
Serving Oak Park Area
i
View Profile
Lawdog Security & Investigations

Lawdog Security & Investigations

(34)
  • Respect
  • Owner
  • Team
“The supervisors are there to train you if you are at a new site for the first time, plus you always get your check on time and the best part is there's Opportunity to advance.”
In Business Since 2017
Emergency Services
Accepts All Major Credit Cards
Licensed
10359 S Pulaski Rd, Chicago, IL
i
View Profile
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
i
View Profile
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
i
View Profile
Key Chicago Private Investigators

Key Chicago Private Investigators

(1)
“Jeanne was very thoughtful in her preliminary questioning and then did a great job setting up a strategic plan of action; with excellent follow-through and timely updates.”
In Business Since 2021
Licensed
25 E Delaware Pl, Chicago, IL
i
View Profile
Citywide Security Group

Citywide Security Group

(1)
“Because I work there”
In Business Since 2007
Emergency Services
3320 W Foster Ave # 258, Chicago, IL
i
View Profile
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
i
View Profile
Usia Private Security

Usia Private Security

(1)
Process Serving, Security Services, Executive Protection
“Excellent service.”
In Business Since 2010
Free Initial Consultation
Emergency Services
Licensed
401 N Michigan Ave Suite 1200, Chicago, IL
i

Private Detective Services in Oak Park, IL Cost Estimates

Minimum cost
$311
Maximum cost
$9826
National Average
$1242
Avg Per Hour Rates
$130
$724
$2069
Fair price range is based on 401 cost profiles
Embed on your site

Your Embed Code

Click to copy
Successfully copied!
Average Cost $1242
Minimum cost $311
Maximum cost $9826
Avg Per Hour Rates $130

Fair range $724 to $2069 is based on 401 cost profiles.

Why these companies made our list

Is this page useful? Yes
No
Is there anything wrong with this page?

Private Investigation and Detective Agencies near Oak Park

Popular in Oak Park

, IL
Back To Top