Discover the best Private Detectives in State of Illinois

Welcome to the list of the best private detectives in the State of Illinois! If you are looking to solve a personal or business problem that requires research and information gathering, you have come to the right place. In our directory you will find the 78 best private detectives in State of Illinois, highly trained and with extensive experience in resolving cases of various kinds.

You will find agencies with detectives who are experts in infidelity investigations, location of people, fraud or industrial espionage, among other sensitive topics. Meet the best private detectives in the State of Illinois and trust their experience to solve your problems efficiently and discreetly.

The best-rated detective agencies are at the top of the list. If you want to know where each one is at a glance, scroll down to the end of our list to see the map with all the agencies geolocated in the State of Illinois area.

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Baker Street Directory cannot guarantee that the professionals and companies listed in the directory have the necessary training and certifications to practice as private investigators. We recommend that you request the corresponding licence of the investigator you are going to hire to verify that he/she can practice the profession.

78 Private Detectives in State of Illinois

5 (188)
Carlson Investigations, Inc
Carlson Investigations, Inc

Carlson Investigations, Inc

See address and contact data
1555 Sherman Ave #306 - 60201, Evanston
+1847-491-9182
4.8 (127)
On Q Professional Investigations
On Q Professional Investigations

On Q Professional Investigations

See address and contact data
3004 W Belmont Ave #1b - 60618, Chicago
+1773-697-4249
5 (110)
Chicago Intel Agency, Ltd.

Chicago Intel Agency, Ltd.

See address and contact data
2364 Essington Rd Suite 504 - 60435, Joliet
+1888-888-8108
4.6 (136)
BioMetric Impressions Elmhurst
BioMetric Impressions Elmhurst

BioMetric Impressions Elmhurst

See address and contact data
188 W Industrial Dr Ste 214B - 60126, Elmhurst
+1833-424-6467
4.8 (76)
KENTECH
KENTECH

KENTECH

See address and contact data
220 N Green St - 60607, Chicago
+1888-749-2432
5 (72)
Krimson Security & Fingerprinting
Krimson Security & Fingerprinting

Krimson Security & Fingerprinting

See address and contact data
15 S Cass Ave #4 - 60559, Hinsdale
+1331-251-6142
4.8 (67)
All County Investigations and Process Serving, Inc.

All County Investigations and Process Serving, Inc.

See address and contact data
164 Division St #105 - 60120, Elgin
+1847-429-1790
4.8 (59)
Kellerman Investigations Ltd

Kellerman Investigations Ltd

See address and contact data
S Main St 60 - 62034, Glen Carbon
(618) 288-6662
4.8 (50)
Northshore Process Service Network
Northshore Process Service Network

Northshore Process Service Network

See address and contact data
208 W Washington St APT 806 - 60606, Chicago
+1312-989-6070
4.4 (55)
Advanced Security Solutions, Inc.
Advanced Security Solutions, Inc.

Advanced Security Solutions, Inc.

See address and contact data
1645 Birchwood Ave - 60018, Des Plaines
+1847-299-0210
5 (24)
Gazelle Process & Investigations

Gazelle Process & Investigations

See address and contact data
8600 US-14 Suite 220B - 60012, Crystal Lake
+1847-752-4450
4.7 (26)
A-1 Detective Agency LLC

A-1 Detective Agency LLC

See address and contact data
33 N County St Ste 507 - 60085, Waukegan
+1773-818-8969
4.7 (24)
Lawrence Ryan Investigations, Inc.
Lawrence Ryan Investigations, Inc.

Lawrence Ryan Investigations, Inc.

See address and contact data
9624 S Cicero Ave - 60453, Oak Lawn
+1312-755-2768
4.9 (23)
Confidential Protective Services
Confidential Protective Services

Confidential Protective Services

See address and contact data
7627 Lake St Suite 206 - 60305, River Forest
+1630-403-8021
5 (20)
RA Private Investigation & Security Inc.
RA Private Investigation & Security Inc.

RA Private Investigation & Security Inc.

See address and contact data
2935 S Halsted St - 60608, Chicago
+1312-489-8867
5 (16)
Dominion Investigations LLC
Dominion Investigations LLC

Dominion Investigations LLC

See address and contact data
4501 W Deyoung St - 62959, Marion
+1618-992-2592
3.8 (26)
Big River Investigations Inc

Big River Investigations Inc

See address and contact data
437 N 9th St - 62301, Quincy
+1217-228-9114
3.8 (28)
A P Private Detective & Security Agency

A P Private Detective & Security Agency

See address and contact data
17084 Winchester Ave - 60429, Hazel Crest
+1708-335-3500
4.5 (17)
Forest Security, Inc.
Forest Security, Inc.

Forest Security, Inc.

See address and contact data
2720 N Thatcher Ave - 60171, Elmwood Park
+1708-452-2000
4.8 (16)
Kevin W McClain Investigations
Kevin W McClain Investigations

Kevin W McClain Investigations

See address and contact data
202 S Broadway - 62801, Centralia
+1618-532-1152
4.8 (16)
Uthe Investigations & Process Service PLLC
Uthe Investigations & Process Service PLLC

Uthe Investigations & Process Service PLLC

See address and contact data
2314 Illinois Rte 59 #204 - 60586, Plainfield
+1815-577-9988
4.5 (17)
Chicagoland Detective Services
Chicagoland Detective Services

Chicagoland Detective Services

See address and contact data
4425 W Irving Park Rd - 60641, Chicago
+1773-355-1691
4.5 (16)
Krimson Investigations And Process Service, LLC
Krimson Investigations And Process Service, LLC

Krimson Investigations And Process Service, LLC

See address and contact data
15 S Cass Ave - 60559, Hinsdale
+1630-822-2237
3.8 (20)
Fact Finders Group, Inc
Fact Finders Group, Inc

Fact Finders Group, Inc

See address and contact data
4747 Lincoln Hwy Ste 300 - 60443, Matteson
+1708-283-4200
4.7 (14)
​Veri-Fi Investigative Services
​Veri-Fi Investigative Services

​Veri-Fi Investigative Services

See address and contact data
5885 E, Cir Dr E STE 180 - 13039, Cicero
+1800-620-0312
4.7 (14)
Great Lakes Professional Investigations, LLC
Great Lakes Professional Investigations, LLC

Great Lakes Professional Investigations, LLC

See address and contact data
1212 S Naper Blvd #119 - 60540, Naperville
+1630-394-2110
5 (12)
Rockford Detective & Security Agency

Rockford Detective & Security Agency

See address and contact data
631 N Longwood St - 61107, Rockford
+1815-282-2822
3.7 (20)
ScoutLogic Pre-Employment Background Screening
ScoutLogic Pre-Employment Background Screening

ScoutLogic Pre-Employment Background Screening

See address and contact data
111 Barclay Blvd Ste 212 - 60069, Lincolnshire
+1800-693-2709
4.7 (14)
D&S Private Detective, Inc.
D&S Private Detective, Inc.

D&S Private Detective, Inc.

See address and contact data
4900 S Becker Dr - 61607, Creve Coeur
+1309-647-8560
4.9 (12)
Blue Star Security LLC
Blue Star Security LLC

Blue Star Security LLC

See address and contact data
1011 E Touhy Ave # 345 - 60018, Des Plaines
+1708-669-7470
4.4 (14)
Theodore Polygraph Services

Theodore Polygraph Services

See address and contact data
4415 Harrison St # 206A - 60162, Hillside
+1708-449-5020
4.2 (10)
Live Scan Illinois/FIRM Systems

Live Scan Illinois/FIRM Systems

See address and contact data
9405 Bormet Dr Suite #1 - 60448, Mokena
+1708-478-6457
3.9 (11)
Special Solutions

Special Solutions

See address and contact data
5 E College Dr - 60004, Arlington Heights
+1847-803-6922
4.5 (10)
Verify Investigations - Private Detective and Investigator Service
Verify Investigations - Private Detective and Investigator Service

Verify Investigations - Private Detective and Investigator Service

See address and contact data
1655 S Blue Island Ave - 60608, Chicago
+1312-204-7184
3.5 (11)
Wilcorp Consultants LLC - License Private Investigators and Process Servers
Wilcorp Consultants LLC - License Private Investigators and Process Servers

Wilcorp Consultants LLC - License Private Investigators and Process Servers

See address and contact data
Bellerive Commons II, 955 Executive Pkwy Dr Apt 221 - 63141, Creve Coeur
+1314-226-9885
3.5 (11)
ETS Intelligence, LLC
ETS Intelligence, LLC

ETS Intelligence, LLC

See address and contact data
10 N Martingale Rd Suite 400 - 60173, Schaumburg
+1847-886-2455
5 (7)
Richart Detective Agency

Richart Detective Agency

See address and contact data
5725 S Archer Ave - 60638, Chicago
+1773-645-7996
4.5 (8)
Krimson Security & Fingerprinting, Inc.
Krimson Security & Fingerprinting, Inc.

Krimson Security & Fingerprinting, Inc.

See address and contact data
9003 Murphy Rd 2nd floor - 60440, Bolingbrook
+1331-251-6142
5 (7)
Walden Investigative Group LLC
Walden Investigative Group LLC

Walden Investigative Group LLC

See address and contact data
416 Main St Suite 429 - 61602, Peoria
+1309-696-5541
4 (9)
Security Pro Intel, Inc (SPI)
Security Pro Intel, Inc (SPI)

Security Pro Intel, Inc (SPI)

See address and contact data
7120 Windsor Lake Pkwy #102 - 61111, Loves Park
+1815-637-6950
5 (6)
PCI Investigations
PCI Investigations

PCI Investigations

See address and contact data
444 N Michigan Ave #1200 - 60611, Chicago
+1312-888-0101
5 (6)
Chicago Serve Security Guards
Chicago Serve Security Guards

Chicago Serve Security Guards

See address and contact data
11340 W 159th St - 60467, Orland Park
+1312-878-6404
5 (6)
Vantius
Vantius

Vantius

See address and contact data
875 N Michigan Ave #3100 - 60611, Chicago
+1312-501-4500
5 (6)
Henson Investigations, INC.

Henson Investigations, INC.

See address and contact data
407 Beltline Rd #236 - 62234, Collinsville
+1618-402-4212
4.4 (7)
S A Y F Consulting
S A Y F Consulting

S A Y F Consulting

See address and contact data
2911 N Cicero Ave - 60641, Chicago
+1312-285-0187
3.3 (9)
United Protection Agency, Inc.

United Protection Agency, Inc.

See address and contact data
1634 W 63rd St - 60621, Chicago
+1708-970-8003
5 (5)
Inner Valor Inc
Inner Valor Inc

Inner Valor Inc

See address and contact data
875 N Michigan Ave #3100 - 60611, Chicago
+1312-373-3725
5 (5)
Law Offices of Tracy M. Rizzo, P.C.

Law Offices of Tracy M. Rizzo, P.C.

See address and contact data
30 N La Salle St #2340 - 60602, Chicago
+1312-332-7788
5 (5)
Total Security Management Inc

Total Security Management Inc

See address and contact data
17W220 W 22nd St # 350 - 60181, Lombard
+1630-832-1076
5 (5)
Krimson Security & Fingerprinting
Krimson Security & Fingerprinting

Krimson Security & Fingerprinting

See address and contact data
1800 Nations Dr Suite 117-6 - 60031, Gurnee
+1847-672-8854
5 (5)
Digital Synergy Inc.

Digital Synergy Inc.

See address and contact data
113 Fina Dr A - 61953, Tuscola
+1217-766-8408
3.4 (10)
Stewart & Associates Inc.
Stewart & Associates Inc.

Stewart & Associates Inc.

See address and contact data
308 W State St #175 - 61101, Rockford
+1815-961-0150
2.8 (9)
H. Brown Investigations, Ltd.

H. Brown Investigations, Ltd.

See address and contact data
362 Lake St - 60002, Antioch
+1847-838-1760
3.7 (6)
Barrister Investigations & Filing Service, Inc.

Barrister Investigations & Filing Service, Inc.

See address and contact data
212 N Chicago St - 60432, Joliet
+1815-306-3310
4.4 (5)
A-Fire Extinguisher
A-Fire Extinguisher

A-Fire Extinguisher

See address and contact data
616 S 6th St - 61104, Rockford
+1815-961-8100
4.8 (5)
Chicago Serve Security Guards
Chicago Serve Security Guards

Chicago Serve Security Guards

See address and contact data
1720 S Michigan Ave - 60616, Chicago
+1312-878-6404
5 (4)
Chicago Executive Protection - Secure Options Consulting, LLC
Chicago Executive Protection - Secure Options Consulting, LLC

Chicago Executive Protection - Secure Options Consulting, LLC

See address and contact data
River Point, 444 W Lake St 17th floor - 60606, Chicago
+1866-850-6863
4 (4)
STT Security and Investigations
STT Security and Investigations

STT Security and Investigations

See address and contact data
3800 E Main St C201 - 60174, Geneva
+1800-860-1788
5 (3)
Myers Service, Inc.
Myers Service, Inc.

Myers Service, Inc.

See address and contact data
2406 W Fullerton Ave - 60647, Chicago
+1888-338-4545
4.3 (4)
Quality Professional Detective & Security Agency
Quality Professional Detective & Security Agency

Quality Professional Detective & Security Agency

See address and contact data
7248 W Benton Dr - 60423, Frankfort
+1815-651-5246
5 (2)
Hurst Investigation Services, Inc

Hurst Investigation Services, Inc

See address and contact data
Lincoln Pl Ct 144 - 62221, Belleville
(618) 310-1500
1.9 (9)
Centurion Investigations & Security Agency

Centurion Investigations & Security Agency

See address and contact data
4246 W 63rd St - 60629, Chicago
+1773-306-2086
2.6 (5)
Arms Security Corporation
Arms Security Corporation

Arms Security Corporation

See address and contact data
824 W Superior St Suite 310 - 60642, Chicago
+1312-868-5250
3.7 (3)
Heintz Polygraph Services

Heintz Polygraph Services

See address and contact data
222 W National Rd - 45377, Vandalia
+1937-581-0150
2.6 (5)
Midwest Professional Invstgtns

Midwest Professional Invstgtns

See address and contact data
1008 Maine St - 62301, Quincy
+1217-224-0757
3.7 (3)
Courthouse Courier Process Servers
Courthouse Courier Process Servers

Courthouse Courier Process Servers

See address and contact data
1 W Old State Capitol Plaza #818 - 62701, Springfield
+1217-528-5997
5 (2)
Hanrahan Private Invstgtns

Hanrahan Private Invstgtns

See address and contact data
4413 Roosevelt Rd #110 - 60162, Hillside
+1708-223-0862
3.7 (3)
Michael A. Jones Private Detective Agency

Michael A. Jones Private Detective Agency

See address and contact data
4101 S Halsted St - 60609, Chicago
+1773-776-6610
5 (1)
Villarreal & Associates Detective Agency Inc.

Villarreal & Associates Detective Agency Inc.

See address and contact data
W Archer Ave 6810 - 60638, Chicago
(888) 421-4204
2 (4)
Pinkerton
Pinkerton

Pinkerton

See address and contact data
190 S LaSalle St UNIT 2100 - 60603, Chicago
+1781-568-8747
1.7 (6)
National Investigations

National Investigations

See address and contact data
24236 S Northern Illinois Dr - 60410, Joliet
+1800-798-5620
2.3 (3)
K A R D Protection Group, Inc.

K A R D Protection Group, Inc.

See address and contact data
121 Fairfield Way - 60108, Bloomingdale
+1866-506-7584
4.5 (2)
All Purpose Polygraph

All Purpose Polygraph

See address and contact data
2422 E Washington St Suite 110 - 61704, Bloomington
+1309-454-5810
3 (2)
Photofax

Photofax

See address and contact data
44W100 US-20 - 60140, Algonquin
+1800-659-9351

How do I select a private detective or a detective agency in State of Illinois?

Choose a private detective or an agency that is licensed, has a good reputation, and has relevant experience for the type of investigation you need. Verify their credentials and check reviews from previous clients to ensure their professionalism and effectiveness.

What types of services does a private detective or detective agency offer?

A private detective or an agency can offer a wide range of services, including surveillance, background checks, locating missing persons, fraud investigation, and more. Make sure the professional or agency has experience in the specific service you need.

Is it legal to hire a private detective or a detective agency in State of Illinois?

Hiring a private detective or a detective agency is legal, as long as they operate within the law. It's important that they comply with all local and national regulations, including data protection and the privacy of the individuals investigated.

How much does it cost to hire a private detective or a detective agency?

The cost can vary significantly depending on the complexity of the case, the duration of the investigation, and the resources required. It's advisable to get a detailed quote and discuss costs before starting any services to avoid surprises.

What should I expect when working with a private detective or detective agency?

You should expect professionalism, discretion, and clear communication. A good detective or agency will keep you informed about the progress of the investigation and will respect legal and ethical boundaries while working on your case.

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