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Michael J. Brennan Injury & Accident Lawyer

(46)

Understanding
Money
Skills

“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”

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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!”

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.

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Marshall Investigative Group

(4)

“From insurance fraud, to workers comp claims, Marshall Investigative Group goes the extra mile to find out critical information about a case.”

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RM Global Security Consultants

(1)

“RM Global Security did a fantastic on my security job.”

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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”

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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...”

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The 24 agencies on this page are the private investigators listed for Oak Park, IL. What each one states about its license, its specialties and the areas it covers comes from its own website; ratings and quotes come from public reviews.

Area overview: Oak Park, IL

23 of the 24 agencies on this page have a rating, from 3.9 to 5.0 across 943 reviews; 5 have 50 or more reviews and 21 are rated 4.5 or higher. 11 are open around the clock; 15 are open on Saturdays and 13 on Sundays. 8 show a license on their websites and 2 have a BBB rating of A or A+. 18 have ten or more years of experience, the longest 34 years. 11 offer urgent consultations; 6 offer a free initial consultation and 1 is family- or locally-owned. We have a website on file for all 24 of the agencies on this page; 21 publish a contact page; 18 list a public email and 1 takes bookings online. We count these figures across the agencies on this page; hours and prices change, so confirm the details with the agency before you book.

Which investigators listed for Oak Park describe their work online?

All 24 agencies on this page have a website on file. Those pages are where an agency states its license, the kinds of investigation it takes on, and whether it works mainly for attorneys, for companies or for private clients. That last point changes how a report gets written.

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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...”

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Argus Services

“Unlike most of our similar competition, Argus Services specializes their investigative services for corporate America, ensuring the utmost competence and skill for our clients.”

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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...”

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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.”

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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.”

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Williams & Nickl

(48)

Responsive
Private Detective
Regulations

“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.”

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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”

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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.”

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Chicago Executive Protection - Secure Options Consulting

(4)

Premises
Company
Team

“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.”

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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.”

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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.”

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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.”

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U.S. Security and Protective Services

(3)

“Very professional place well structured i recommend them for their services!!!!”

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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”

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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.”

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Citywide Security Group

(1)

“Because I work there”

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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”

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Usia Private Security

(1)

“Excellent service.”

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Average Cost	$1242
Minimum cost	$311
Maximum cost	$9826
Avg Per Hour Rates	$130

Best Private Investigators near Oak Park, IL

Michael J. Brennan Injury & Accident Lawyer

Lawrence Ryan Investigations

Marshall Investigative Group

RM Global Security Consultants

Larsen Forensics

Culper

Area overview: Oak Park, IL

Chicago Loss Prevention Group

Argus Services

Addition Technology

Northshore Process Service Network

Carlson Investigations

Williams & Nickl

On Q Professional Investigations

RA Private Investigation & Security

Chicago Executive Protection - Secure Options Consulting

PCI Investigations

Confidential Protective Services

Lawdog Security & Investigations

U.S. Security and Protective Services

Blue Star Security

Key Chicago Private Investigators

Citywide Security Group

International Protective Services

Usia Private Security

Private Detective Services in Oak Park, IL Cost Estimates

Why these companies made our list

Private Investigators near Oak Park

Popular in Oak Park