1. Confidential Investigative Services

(708) 293-1012

12607 S Laramie Ave Alsip, IL 60803

2. USA Detective Agency

(708) 361-2872

Orland Park, IL 60462

3. Special Ops Detective Agency

(773) 366-3175

9107 S Michigan Ave Chicago, IL 60619

4. Knorok Detective Agency

(708) 447-9080

8644 Lincoln Dr Lyons, IL 60534

5. Apollo Detective Agency Inc

(708) 824-2503

1440 W 127th St Riverdale, IL 60827

6. Jones Detective Agency

(773) 776-6610

1514 W Garfield Blvd Chicago, IL 60609

7. International Detective and Protective

(773) 253-2383

28 E 112th Pl Chicago, IL 60628

8. Jackson Private Detective

(708) 248-6624

20056 Keystone Ave Matteson, IL 60443

9. Apollo Detective Agency

(708) 489-5300

1440 W 127th St Riverdale, IL 60827

10. Countywide Detective Bureau

(773) 229-0300

5333 S Sayre Ave Chicago, IL 60638

11. AP Private Detective Agency

(708) 922-3500

17100 Ste Dixie Hwy Hazel Crest, IL 60429

12. Star Detective & Security

(773) 874-1900

813 E 75th St Chicago, IL 60619

13. Ap Private Detective Agency

(708) 335-3500

17084 Winchester Ave Hazel Crest, IL 60429

14. Michael A Jones Private Detective

(773) 918-1015

2415 W 79th St Chicago, IL 60652

15. Albany & Washburne Private Detective Agency

(312) 217-8228

Richton Park, IL 60471

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16. Michael A Jones Private Detective

(773) 287-5020

2018 W 69th Pl Chicago, IL 60636

17. Michael P. Slevnik Private Detective Chicago

(708) 233-0211

Po Box 2762 Orland Park, IL 60462

18. Kates Detective & Security Services & Special Even

(773) 436-3910

7810 S Claremont Ave Chicago, IL 60620

19. Menser Security and Detective Training Agency

(773) 568-5344

700 W 119th St Chicago, IL 60628

20. LHL Investments LLC

(773) 341-2550

9421 south Vernon Ave Chicago, IL 60619

21. Investigative Services Agency, Inc

(312) 755-9700

10470 W. 163rd Place Orland Park, IL 60467

22. Msp1 Investigation

(773) 701-6070

10807 S Michigan Ave Chicago, IL 60628

23. Darpis Investigations

(773) 881-4764

10450 S Vincennes Ave Chicago, IL 60643

24. Detectives-Investigators

(708) 645-2779

13917 Oak St Homer Glen, IL 60491

25. Agb Investigative Services

(773) 239-2227

2033 W 95th St Chicago, IL 60643

26. Agb Investigative Service

(773) 966-6136

839 W 79th St Chicago, IL 60620

27. Jmd Defense & Investigations

(773) 614-8747

1447 W 103rd St Chicago, IL 60643

28. International Protection Investigation Corp

(708) 300-2693

5111 Sauk Trl Richton Park, IL 60471

29. Maximum Security & Investigations Agency Inc

(773) 651-1990

601 E 87th St Chicago, IL 60619

30. Jesus Saves Security & Investigations

(773) 980-1111

436 E 109th St Chicago, IL 60628

31. Centurion Investigations Security Agency

(708) 458-4074

5901 W 66th St Chicago, IL 60638

32. Centurion Investigations and Sercurity Angency Inc

(773) 306-2086

4246 W 63rd St Chicago, IL 60629

33. Onq Protection and Investigation Services LLC

(773) 554-8209

106 W Calendar Ave La Grange, IL 60525

34. Tri County Investigations Group

(630) 655-1313

621 Plainfield Rd Willowbrook, IL 60527

35. LawDog Security & Investigations Inc.

(773) 233-5742

10359 S. Pulaski Rd Chicago, IL 60655

We Provide The Highest Quality Security Services!