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2026 Ranking

Best Security Companies in Chicago

Ranking of the best private security companies in Chicago, Illinois. The order prioritizes verified state licensing, track record and verified reviews; profile views and recommendations only fine-tune the order.

Verified state license Real user views 224 companies in Chicago

We're still gathering recommendations and verified customer reviews in Chicago. In the meantime, the order is based on license status and profile views.

Top-ranked companies in Chicago

  1. 1
    2S

    2W SECURITY, PLLC

    State Licensed
    Chicago
    Security Guards
    Get quotes in Chicago
    Licensed
  2. 2
    3P

    360 PROTECTION SERVICES

    State Licensed
    Chicago
    Security Guards
    Get quotes in Chicago
    Licensed
  3. 3
    AP

    A PLUS SAFETY, INC

    State Licensed
    Chicago
    Security Guards
    Get quotes in Chicago
    Licensed
  4. 4
    AS

    A-ALERT SECURITY SERVICES INC

    State Licensed
    Chicago
    Security Guards
    Get quotes in Chicago
    Licensed
  5. 5
    AG

    AA GILGABS CORP.

    State Licensed
    Chicago
    Security Guards
    Get quotes in Chicago
    Licensed
  6. 6
    AD

    ACCORD DETECTIVE AGENCY INC

    State Licensed
    Chicago
    Security Guards
    Get quotes in Chicago
    Licensed
  7. 7
    AS

    ACES SECURITY INC

    State Licensed
    Chicago
    Security Guards
    Get quotes in Chicago
    Licensed
  8. 8
    AK

    ACTION K-9 SECURITY INC

    State Licensed
    Chicago
    Security Guards
    Get quotes in Chicago
    Licensed
  9. 9
    A&

    ADDISON & ASSOCIATES SECURITY LTD

    State Licensed
    Chicago
    Security Guards
    Get quotes in Chicago
    Licensed
  10. 10
    AS

    ADMIRAL SECURITY SERVICES INC

    State Licensed
    Chicago
    Security Guards
    Get quotes in Chicago
    Licensed

All state licensed security companies in Chicago

224 companies with a verified, active state license, ranked by track record and reputation. All checked against official license records.

  1. 11ADVANCE CRITICAL ASSET PROTECTION INC. State Licensed· Security Guards
  2. 12ADVANCED SECURITY SOLUTIONS INC State Licensed· Security Guards
  3. 13AESIR PROTECTIVE GROUP, INCORPORATED State Licensed· Security Guards
  4. 14AF SECURITY SERVICES, INC. State Licensed· Security Guards
  5. 15AIRTIGHT SECURITY LLC State Licensed· Security Guards
  6. 16ALLIANCE SECURITY SERVICES INC State Licensed· Security Guards
  7. 17ALLPOINTS SECURITY AND DETECTIVE INC State Licensed· Security Guards
  8. 18ALPHA7 PROTECTIVE SERVICES PLLC State Licensed· Security Guards
  9. 19AMANAH SECURITY GROUP PLLC State Licensed· Security Guards
  10. 20AMERICAN HERITAGE PROTECTIVE SERVICES INC State Licensed· Security Guards
  11. 21ANDY FRAIN SERVICES INC State Licensed· Security Guards
  12. 22ARMOUR SECURITY GROUP PLLC State Licensed· Security Guards
  13. 23ARMS SECURITY CORP State Licensed· Security Guards
  14. 24ASI SECURITY INC State Licensed· Security Guards
  15. 25BEAR SECURITY GROUP, PLLC State Licensed· Security Guards
  16. 26BEARS SECURITY PLLC State Licensed· Security Guards
  17. 27BENFORD PROTECTION GROUP LLC State Licensed· Security Guards
  18. 28BLEUMETHIEUS PLLC State Licensed· Security Guards
  19. 29BLIND JUSTICE INVESTIGATION AND SECURITY SERVICES, INC. State Licensed· Security Guards
  20. 30BLUE 22 LLC State Licensed· Security Guards
  21. 31BLUE IRON INVESTIGATIONS AND SECURITY PLLC State Licensed· Security Guards
  22. 32BLUE KNIGHT SECURITY SOLUTIONS, PLLC State Licensed· Security Guards
  23. 33BLUE STAR SECURITY LLC State Licensed· Security Guards
  24. 34CASCADIA GLOBAL SERVICES X, INC. State Licensed· Security Guards
  25. 35CELTIC CORPORATION State Licensed· Security Guards
  26. 36CENTRAL SECURITY AGENCY, INC State Licensed· Security Guards
  27. 37CENTURION INVESTIGATIONS AND SECURITY INC State Licensed· Security Guards
  28. 38CERBERUS SECURITY PLLC State Licensed· Security Guards
  29. 39CHICAGO PROTECTION DEPLOYMENT LTD State Licensed· Security Guards
  30. 40CHICAGO RISK AND CASUALTY CONSULTANTS INC. State Licensed· Security Guards
  31. 41CHICAGO SECURITY INCORPORATION INC State Licensed· Security Guards
  32. 42CHICAGO SECURITY PREMIER LLC State Licensed· Security Guards
  33. 43CITYWIDE SECURITY GROUP INC State Licensed· Security Guards
  34. 44CLARK INTERNATIONAL INC State Licensed· Security Guards
  35. 45CLR SECURITY & INVESTIGATION INC State Licensed· Security Guards
  36. 46CRISIS24 PROTECTIVE SOLUTIONS, INC State Licensed· Security Guards
  37. 47CS PRIVATE SECURITY & DETECTIVE COMPANY LTD State Licensed· Security Guards
  38. 48CULPER INC State Licensed· Security Guards
  39. 49DANMARK SECURITY LLC State Licensed· Security Guards
  40. 50DARPIS SECURITY INC State Licensed· Security Guards
See the remaining 174 licensed companies in the directory

Ranking methodology

The order reflects real, verifiable signals that are hard to manipulate. Companies with a verified state license appear first; within that group we prioritize the best-reviewed (verified reviews) and the most established according to official records. Profile views and community recommendations only fine-tune the order — a couple of votes can't move positions. For each company we show exactly which signals back its position.

  • State license — we verify each active license against state licensing boards like California BSIS and Illinois IDFPR. Licensed companies appear first.
  • Real profile views — how many people viewed the company's profile over the last 30 days.
  • Community recommendations — user votes with anti-fraud controls (fingerprint dedup).
  • Verified customer reviews — customer rating and review volume, when available.

Looking for more options in Chicago?

Browse the complete directory with all 224 private security companies listed in Chicago, filter by service type and compare pricing.

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Security services in Chicago

Security Guards en ChicagoArmed Security Guards en ChicagoMobile Patrol en ChicagoEvent Security en ChicagoExecutive Protection en ChicagoCorporate Security en ChicagoWarehouse & Industrial Security en ChicagoResidential & HOA Security en ChicagoConstruction Site Security en ChicagoAlarm Monitoring en ChicagoVideo Surveillance & CCTV en ChicagoFire Watch Services en ChicagoSecurity Consulting en Chicago

More about private security in Chicago

Directory of ChicagoAll security companies, with search and pagination.State Licensed in ChicagoOnly companies with an active state license.
See all security companies in Illinois

Frequently asked questions

What are the best private security companies in Chicago?
Top companies in Chicago include 2W SECURITY, PLLC, 360 PROTECTION SERVICES, A PLUS SAFETY, INC, A-ALERT SECURITY SERVICES INC, AA GILGABS CORP., based on their active state license and the volume of profile views and community recommendations on HireSecurityNow. The order updates continuously based on these signals.
How is the ranking of security companies in Chicago determined?
Companies with a verified, active state license appear first, checked against official licensing board records like California BSIS and Illinois IDFPR. Within that group, the order reflects real profile views over the last 30 days, community recommendations (with anti-fraud controls) and verified customer reviews when available.
Are the ranked companies state licensed?
We verify each company's license status against official state licensing board records. Each company's profile shows its license number and status when it holds an active license.
How do I hire one of these companies in Chicago?
You can get free quotes from any company in the ranking: open its profile, submit a quote request with your requirements and you'll receive proposals directly. All quotes are free and come with no obligation.
How many security companies are listed in Chicago?
Our directory lists 224 companies in Chicago, Illinois. You can browse the complete list in the Chicago security companies directory.