Best Private Investigators in Crystal Lake, IL

The highest-rated Private Investigator & Detective companies out of 200 vetted & reviewed in the Crystal Lake area.

Gazelle Process & Investigations

Gazelle Process & Investigations

(17)
  • Price
  • Team
  • Company
“Gazelle Process & Investigations was very thorough in serving the legal papers that were assigned to his company.”
Emergency Services
In Business Since 2020
Licensed
8600 US-14 Suite 205C, Crystal Lake, IL
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Confidential Protective Services

Confidential Protective Services

(21)
  • Patient
  • Instructor
  • Communication
“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 Crystal Lake Area
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Lazzara Detective Services

Lazzara Detective Services

“Lazzara Detective Services Inc. is comprised of a team of highly skilled and experienced private investigators. Our team has a diverse background in law enforcement, military, and private investigation. We utilize the latest technology and techniques...”
In Business Since 2023
246 Forestview Dr, Crystal Lake, IL
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Executive Protection Investigative Consultants

Executive Protection Investigative Consultants

Security Contractor Services, Personal Services, Disaster Response Services
“Gun violence and terrorist attacks are making headlines across the nation. No individual or institution is safe from a possible attack. Executive Protection Investigative Consultants, LLC makes it our business to train individuals and future security...”
In Business Since 2016
Licensed
Serving Crystal Lake Area
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Capital Security & Investigations

Capital Security & Investigations

Accepts All Major Credit Cards
In Business Since 2003
Licensed, BBB Rating: A+
Serving Crystal Lake Area
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Viper Detective Agency

Viper Detective Agency

(1)
“Sally keeps you updated throughout the process.”
In Business Since 2004
Serving Crystal Lake Area
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Detectives.com

Detectives.com

Corporate Intelligence Investigations, Process Service, Litigation Support
“Do you need the services of a Private Detective? Simply call us at STRICTLY CONFIDENTIAL. Our network of X-FBI Agents, Law Enforcement Personnel and Security Specialists are pre-screened and qualified to serve your immediate needs at affordable price...”
In Business Since 1997
Licensed
Serving Crystal Lake Area
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LWM Research

LWM Research

(1)
“This company can safely transport people and property anywhere in the U.”
In Business Since 2014
NRA Certified
Serving Crystal Lake Area
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SCS & Associates

SCS & Associates

Workers' Comp, Backgrounds, Missing Persons
“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 Crystal Lake Area
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The Debugging Experts

The Debugging Experts

Family Law / Divorce Attorney Services, Business / Corporate Services, Personal Services
In Business Since 2006
Free Initial Consultation
150 E Beech Dr Unit 122, Schaumburg, IL
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Hertog & Associates

Hertog & Associates

“Last fall (2015) I stood at the Daley Center computers trying to find an important witness. After running through all my usual sources I was near the end of my rope – he wasn't dead, he wasn't on the street, he wasn't in the Cook County Jail, the Dep...”
In Business Since 2001
Serving Crystal Lake Area
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American Sentinel

American Sentinel

, , Guarding Services
“American Sentinel is founded on the principles of truth, honor, and integrity. The sentinel is a watchman, a guardian, and soldier whose discipline and mindful eye keep those they protect safe. We live these values and use it to guide us through our ...”
In Business Since 2020
Serving Crystal Lake Area
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Hogan Investigative Services

Hogan Investigative Services

(3)
“Very professional.”
In Business Since 2013
Licensed
Serving Crystal Lake Area
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Valle Security Services

Valle Security Services

(1)
“Great employer to work with very flexible schedule they will work with and give u all the hours that u need, management very professional and very polite, been working with them for couple months now and hopefully I move up with this company best com...”
In Business Since 2009
800 E Northwest Hwy, Palatine, IL
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Northshore Process Legal Support Services

Northshore Process Legal Support Services

(31)
  • Affidavit
  • Company
  • Communication
“The best process server around, North Shore gets the job done quickly and effectively while constantly keeping you informed about where you are in the process.”
Emergency Services
In Business Since 1997
Licensed, BBB Rating: A+
Serving Crystal Lake Area
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R7 Investigations

R7 Investigations

“R7 is dedicated to providing accurate information to each client in a timely and cost-effective manner. R7 believes in communicating effectively with every client. Prior to the acceptance of a case, we provide an assessment of the probability of succ...”
Emergency Services
In Business Since 2019
Licensed, BBB Rating: A+
1519 N Lewis Ave, Waukegan, IL
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Special Solutions

Special Solutions

(8)
BUG Sweeps Tscm, Theft Investigations, Martial Infidelity
“Investigator Kelley was amazing and really came through assisting with my situation.”
Emergency Services
In Business Since 2015
Coupons & Offers
Licensed
Serving Crystal Lake Area
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Scoutlogic Pre-Employment Background Screening

Scoutlogic Pre-Employment Background Screening

(15)
  • Reports
  • Responsive
  • Employers
“We are fortunate enough to have Chip as our sale representative and he is truly wonderful, any time we need anything he is there to assist along with other members of Scout Logic.”
Transparent Fees & Pricing
In Business Since 2016
Free Initial Consultation
Licensed
Serving Crystal Lake Area
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TK Consulting Agency Group

TK Consulting Agency Group

(11)
  • Instructor
“What a Great teacher I learned so much during the course that I didn't know like proper posture and firearm safety and the true meaning of having a CCW I recommend this class to everyone!!!”
Emergency Services
In Business Since 2022
Licensed
Serving Crystal Lake 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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3 Kings Private Security

3 Kings Private Security

(8)
  • Vehicle
“These guys are awesome and will come back every time I need car needs Positive Punctuality, Quality, Professionalism, Value Services Electrical repair, Electrical, Oil change”
Locally Owned & Operated
30+ Years Experience
Emergency Services
5701 75th St, Kenosha, WI
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Firefly Investigations

Firefly Investigations

(1)
“I'm more than happy with the results I received and to be honest it was 100% more than anticipated!”
In Business Since 2021
4623 75th St #4286, Kenosha, WI
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Foresight Investigative Services

Foresight Investigative Services

(6)
Corporate Investigations, Asset Investigations, Infidelity Investigations
“The investigator is extremely knowledgeable, thorough, and highly professional.”
In Business Since 2023
Licensed
Serving Crystal Lake 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 Crystal Lake Area
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Private Detective Services in Crystal Lake, IL Cost Estimates

Minimum cost
$300
Maximum cost
$9500
National Average
$1200
Avg Per Hour Rates
$125
$700
$2000
Typical price range is based on 389 cost profiles
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Average Cost $1200
Minimum cost $300
Maximum cost $9500
Avg Per Hour Rates $125

Typical range $700 to $2000 is based on 389 cost profiles.

Why these companies made our list

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