# Licensed Private Detective Agency licences in Illinois — the register — idfpr

> 423 active Licensed Private Detective Agency licences in Illinois, by county.

## Active Licensed Private Detective Agency licences in Illinois

423 active licences carry this exact IDFPR category — the 105th most numerous of the 115 with a page here, across 47 counties.

### What this licence is

**Licensed Private Detective Agency** is one of the 264 licence categories
the Illinois Department of Financial and Professional Regulation issues, under
the Detective Board. Practising a regulated profession without a current
licence is an offence in Illinois, which is why IDFPR publishes this register
for the public to check.

**6** of the 423 active licences in this category carry at
least one disciplinary action in IDFPR's file — 1.4%.

This site publishes that count and no more. It never names who,
and never says why: in Illinois a licence can be suspended for unpaid state
taxes, child support arrears or a defaulted student loan, none of which says
anything about how someone does their job. The detail is on IDFPR's own record
and on an individual entry here, which has no address a search engine can
reach. [Why that line is drawn there](/discipline.md).

### Where these licences are held

| County | Active licences | Share |
|---|---|---|
| [Cook](/county/cook.md) | 187 | 44.2% |
| [Dupage](/county/dupage.md) | 40 | 9.5% |
| [Will](/county/will.md) | 25 | 5.9% |
| [Kane](/county/kane.md) | 19 | 4.5% |
| [Lake](/county/lake.md) | 18 | 4.3% |
| [Sangamon](/county/sangamon.md) | 12 | 2.8% |
| [Mchenry](/county/mchenry.md) | 6 | 1.4% |
| [Saint Clair](/county/saint-clair.md) | 5 | 1.2% |
| [Peoria](/county/peoria.md) | 4 | 0.9% |
| [Madison](/county/madison.md) | 4 | 0.9% |
| [Missouri](/county/missouri.md) | 3 | 0.7% |
| [Winnebago](/county/winnebago.md) | 3 | 0.7% |
| [Adams](/county/adams.md) | 3 | 0.7% |
| [Kankakee](/county/kankakee.md) | 3 | 0.7% |
| [Logan](/county/logan.md) | 2 | 0.5% |
| [Washington](/county/washington.md) | 2 | 0.5% |
| [Georgia](/county/georgia.md) | 2 | 0.5% |
| [Florida](/county/florida.md) | 2 | 0.5% |
| [Ogle](/county/ogle.md) | 2 | 0.5% |
| [Stephenson](/county/stephenson.md) | 1 | 0.2% |
| [Macon](/county/macon.md) | 1 | 0.2% |
| [Monroe](/county/monroe.md) | 1 | 0.2% |
| [Boone](/county/boone.md) | 1 | 0.2% |
| [Wisconsin](/county/wisconsin.md) | 1 | 0.2% |

### Some of the 423 active licences

*Licensed Private Detective Agency, alphabetical*

| Name | Licence | County | First issued | Expires |
|---|---|---|---|---|
| 1St American Investigative Agency | [117001385](/search.md) | Cook | 2007 | 2029 |
| 221B Partners Pllc | [117001844](/search.md) | Cook | 2020 | 2029 |
| 24/7 Process Service & Investigations Inc | [117001616](/search.md) | Dupage | 2012 | 2029 |
| A 1 Process Serving Of Illinois Inc | [117000677](/search.md) | Cook | 1991 | 2026 |
| A Closer Look Investigations Llc | [117001456](/search.md) | Madison | 2008 | 2029 |
| A-1 Detective Agency Llc | [117001638](/search.md) | Lake | 2012 | 2029 |
| A-Mayesing Security Inc. | [117001864](/search.md) | Kane | 2021 | 2029 |
| Abacus Research Inc | [117001516](/search.md) | Will | 2010 | 2026 |
| Abc Legal Services Inc | [117001765](/search.md) | Washington State | 2017 | 2026 |
| Accord Detective Agency Inc | [117000127](/search.md) | Cook | 1984 | 2026 |
| Accord Protection Corporation | [117001963](/search.md) | Cook | 2026 | 2029 |
| Accurate Background Llc | [117001726](/search.md) | — | 2015 | 2026 |
| Acumen Probe Llc | [117001088](/search.md) | Cook | 2001 | 2029 |
| Adp Screening And Selection Services Inc | [117001563](/search.md) | — | 2011 | 2026 |
| Advance Critical Asset Protection Inc. | [117001940](/search.md) | Dupage | 2025 | 2029 |
| Advanced Investigations & Security Inc. | [117001832](/search.md) | — | 2019 | 2029 |
| Advanced Investigative Services Inc | [117000899](/search.md) | Washington | 1996 | 2029 |
| Advantage Surveillance Llc | [117001842](/search.md) | — | 2020 | 2029 |
| Aeroshield Inc | [117001809](/search.md) | Cook | 2018 | 2026 |
| Affordable Investigations | [117001782](/search.md) | — | 2017 | 2029 |
| Albany & Washburne Inc | [117001661](/search.md) | Cook | 2013 | 2026 |
| Alias Intelligence Inc | [117001929](/search.md) | Cook | 2024 | 2026 |
| All Metro Security Inc | [117001449](/search.md) | Saint Clair | 2008 | 2029 |
| All-American Investigators | [117001075](/search.md) | Cook | 2000 | 2026 |
| Allied Universal Compliance And Investigations, Inc | [117000920](/search.md) | Cook | 1997 | 2029 |
| Allpoints Security And Detective Inc | [117001284](/search.md) | Cook | 2005 | 2026 |
| Alpine Group Midwest | [117001787](/search.md) | Lake | 2017 | 2029 |
| Am Legal Services Inc | [117001626](/search.md) | Cook | 2012 | 2029 |
| Amanah Security And Investigation'S Group Pllc | [117001950](/search.md) | — | 2025 | 2029 |
| American Sentinel Inc | [117001777](/search.md) | Cook | 2017 | 2026 |
| Ap Private Detective & Security Agency Ltd | [117001371](/search.md) | Cook | 2007 | 2026 |
| Arc Light Investigative Services Inc | [117001674](/search.md) | Cook | 2013 | 2026 |
| Armored Transport Inc | [117001827](/search.md) | Sangamon | 2019 | 2026 |
| Armour Security Group Pllc | [117001848](/search.md) | Cook | 2020 | 2029 |
| Arms Security Corp | [117001735](/search.md) | Cook | 2015 | 2029 |
| Asap Process Service & Investigations Llc | [117001095](/search.md) | — | 2001 | 2029 |
| Asi Security Inc | [117000436](/search.md) | Cook | 1985 | 2029 |
| August Protective Services Pllc | [117001891](/search.md) | Cook | 2021 | 2026 |
| Axium Consulting Llc | [117001344](/search.md) | Cook | 2006 | 2029 |
| B M Investigations, Pllc | [117001896](/search.md) | Cook | 2022 | 2026 |
| Background Investigative Services Inc | [117001007](/search.md) | Cook | 1999 | 2026 |
| Barrister Investigation & Filing Service | [117000883](/search.md) | Will | 1996 | 2029 |
| Bc Process Inc | [117001846](/search.md) | Will | 2020 | 2029 |
| Beacon International Group Inc | [117001573](/search.md) | Ohio | 2011 | 2029 |
| Bellich Group, Inc. | [117001866](/search.md) | Dupage | 2021 | 2026 |
| Berkeley Research Group | [117001723](/search.md) | Cook | 2015 | 2026 |
| Better Process Serving & Investigations Inc | [117001705](/search.md) | Cook | 2014 | 2026 |
| Bi State Investigative Services Inc | [117001466](/search.md) | Saint Clair | 2009 | 2029 |
| Big River Investigations Inc | [117001308](/search.md) | Adams | 2005 | 2029 |
| Blohm Investment Group Inc | [117001798](/search.md) | Cook | 2018 | 2029 |
| Blue 22 Llc | [117000192](/search.md) | Kane | 1984 | 2026 |
| Blue Eagle Investigations Inc | [117001508](/search.md) | Will | 2009 | 2026 |
| Blue Iron Investigations And Security Pllc | [117001957](/search.md) | Cook | 2026 | 2029 |
| Blue Knight Security Solutions, Pllc | [117001908](/search.md) | Cook | 2023 | 2029 |
| Blue Line Security Solutions Llc | [117001861](/search.md) | Will | 2020 | 2029 |
| Blue Line Solutions Llc | [117001833](/search.md) | Fayette | 2019 | 2029 |
| Blue Star Investigations Inc | [117001675](/search.md) | Mchenry | 2013 | 2026 |
| Blue Star Security Llc | [117001722](/search.md) | Cook | 2015 | 2029 |
| Brewster Investigations | [117000439](/search.md) | Logan | 1985 | 2026 |
| Brian W Stewart & Associates Inc | [117000540](/search.md) | Stephenson | 1987 | 2029 |
| Bright Line Investigations Pllc | [117001938](/search.md) | Cook | 2025 | 2026 |
| Bushue Human Resources Inc | [117001686](/search.md) | Effingham | 2014 | 2029 |
| C Block Inc | [117001655](/search.md) | Winnebago | 2013 | 2029 |
| C J Maresca & Associates Ltd | [117000975](/search.md) | Dupage | 1998 | 2029 |
| Capital Security And Investigations Inc | [117001004](/search.md) | Dupage | 1999 | 2026 |
| Captain'S Security Corporation | [117000386](/search.md) | Lake | 1984 | 2026 |
| Carlson Investigations Inc | [117001360](/search.md) | Cook | 2006 | 2029 |
| Castle Island Investigative Associates Pllc | [117001914](/search.md) | Dupage | 2023 | 2029 |
| Castro Investigations & Consulting Pllc | [117001946](/search.md) | Cook | 2025 | 2029 |
| Celtic Corporation | [117001905](/search.md) | Cook | 2023 | 2026 |
| Central Security Agency, Inc | [117001953](/search.md) | Cook | 2025 | 2029 |
| Chicago Intel Agency Ltd | [117001737](/search.md) | Will | 2016 | 2029 |
| Chicago Intelligence Services Ltd | [117001526](/search.md) | Cook | 2010 | 2026 |
| Chicago Pi Services Group Llc | [117001738](/search.md) | Cook | 2016 | 2029 |
| Chicago Protection Deployment Ltd | [117000957](/search.md) | Cook | 1997 | 2029 |
| Chicago Risk And Casualty Consultants Inc. | [117001656](/search.md) | Cook | 2013 | 2029 |
| Chicago Serve Llc | [117001588](/search.md) | Will | 2011 | 2026 |
| Chicagoland Detective Services | [117001343](/search.md) | Cook | 2006 | 2026 |
| Chicagoland Private Investigation Pllc | [117001933](/search.md) | Cook | 2024 | 2026 |
| Citywide Security Group Inc | [117001676](/search.md) | Cook | 2013 | 2029 |
| Claims Bureau Usa, Inc | [117001328](/search.md) | — | 2006 | 2029 |
| Clark International Inc | [117001803](/search.md) | Cook | 2018 | 2029 |
| Clr Security & Investigation Inc | [117001945](/search.md) | Cook | 2025 | 2026 |
| Cls Enterprises Of Lockport Inc | [117001426](/search.md) | Will | 2008 | 2029 |
| Clutter Investigations Inc | [117001206](/search.md) | Sangamon | 2003 | 2026 |
| Collision Analytics Llc | [117001857](/search.md) | Mchenry | 2020 | 2026 |
| Command Investigations Pllc | [117001919](/search.md) | — | 2023 | 2029 |
| Comprehensive Investigative Services | [117001942](/search.md) | — | 2025 | 2026 |
| Computerized Information Services Inc | [117001044](/search.md) | Cook | 2000 | 2029 |
| Contego Investigative Services Llc | [117001812](/search.md) | — | 2018 | 2026 |
| Continental Investigative Services Llc | [117001720](/search.md) | Franklin | 2015 | 2029 |
| Control Risks Group Llc | [117001741](/search.md) | — | 2016 | 2029 |
| Counter-Intelligence Associates Inc | [117001249](/search.md) | Cook | 2004 | 2026 |
| Countywide Detective Bureau Inc | [117001184](/search.md) | Cook | 2003 | 2029 |
| Coventbridge (Usa) Inc | [117001549](/search.md) | — | 2011 | 2029 |
| Cps Investigations Llc | [117001537](/search.md) | Union | 2010 | 2026 |
| Cra International Inc | [117001795](/search.md) | Cook | 2018 | 2026 |
| Crisis24 Protective Solutions, Inc | [117001824](/search.md) | Cook | 2019 | 2029 |
| Cs Private Security & Detective Company Ltd | [117001909](/search.md) | Cook | 2023 | 2029 |
| Culper Inc | [117001631](/search.md) | Cook | 2012 | 2029 |
| D&S Private Detective, Inc | [117001885](/search.md) | Peoria | 2021 | 2029 |
| Darpis Investigations Inc | [117001121](/search.md) | Cook | 2001 | 2026 |
| Dart Investigations Pllc | [117001881](/search.md) | Kankakee | 2021 | 2029 |
| David A Eshoo & Associates Ltd | [117001625](/search.md) | Cook | 2012 | 2029 |
| Davis Bancorp Inc | [117000487](/search.md) | Cook | 1986 | 2026 |
| Dbats Inc Dba Narrow Security | [117001279](/search.md) | Cook | 2004 | 2029 |
| Delorto Mazzola & Assoc Ltd | [117000828](/search.md) | Dupage | 1995 | 2026 |
| Delta Associated Investigations Inc | [117001593](/search.md) | Georgia | 2011 | 2029 |
| Delta Force One Investigations Llc | [117001448](/search.md) | Cook | 2008 | 2029 |
| Detect System Inc | [117000848](/search.md) | Champaign | 1996 | 2026 |
| Digby'S Detective And Security Agency Inc | [117000319](/search.md) | Cook | 1984 | 2026 |
| Digistream Chicago Inc | [117001712](/search.md) | — | 2014 | 2029 |
| Digital Digging Investigations, Pllc | [117001878](/search.md) | Cook | 2021 | 2026 |
| Diligent Detective Agency Ltd | [117001126](/search.md) | Iroquois | 2001 | 2029 |
| Diversified Security And Investigations Pllc | [117001860](/search.md) | — | 2020 | 2029 |
| Dixon Detective Agency Inc | [117001527](/search.md) | Will | 2010 | 2026 |
| Donan Engineering Nc, Pllc | [117001962](/search.md) | — | 2026 | 2029 |
| Due Process Investigations | [117001772](/search.md) | Cook | 2017 | 2029 |
| Durbin Investigations | [117001488](/search.md) | Marion | 2009 | 2026 |
| Dynamic Inquires | [117001628](/search.md) | Cook | 2012 | 2029 |
| Dynamic Safety Llc | [117001223](/search.md) | Lake | 2003 | 2029 |
| E L Johnson Investigations | [117000912](/search.md) | Cook | 1997 | 2026 |
| Edward D Sonne Jr & Associates Inc | [117001047](/search.md) | Cook | 2000 | 2029 |
| Edward R Kirby And Associates Inc | [117000154](/search.md) | Dupage | 1984 | 2029 |
| Edward R Lefevour & Associates Ltd | [117001192](/search.md) | Cook | 2003 | 2029 |
| Efi Global Inc | [117001341](/search.md) | Dupage | 2006 | 2029 |
| Eifs Ltd | [117001320](/search.md) | Cook | 2005 | 2026 |
| Electrotek Consultants Inc | [117001493](/search.md) | — | 2009 | 2029 |
| Elite Private Detective And Security Services Llc | [117001903](/search.md) | Cook | 2023 | 2026 |
| Elite Process Serving And Investigations Inc | [117001199](/search.md) | Will | 2003 | 2029 |
| Ethos Risk Services Llc | [117001759](/search.md) | Cook | 2016 | 2029 |
| Ets Intelligence Llc | [117001585](/search.md) | Cook | 2011 | 2029 |
| Executive Protection Investigative Consultants Llc | [117001709](/search.md) | Lake | 2014 | 2026 |
| Fact Finders Group Inc | [117000893](/search.md) | Cook | 1996 | 2029 |
| Fastpace Process & Investigations Inc | [117001567](/search.md) | Will | 2011 | 2026 |
| Federal Investigation Service Inc | [117000864](/search.md) | Dupage | 1996 | 2026 |
| Final Defense Security, Pllc | [117001923](/search.md) | Cook | 2024 | 2029 |
| Fine Line Group Llc | [117001930](/search.md) | Cook | 2024 | 2026 |
| Fire Tech Inc | [117000596](/search.md) | Macon | 1989 | 2029 |
| Firefly Legal Inc | [117001465](/search.md) | Will | 2009 | 2029 |
| First Advantage Background Services Corp | [117001572](/search.md) | Florida | 2011 | 2029 |
| First Watch Inc | [117001912](/search.md) | Dupage | 2023 | 2026 |
| Five X Five Security Solutions, Pllc | [117001960](/search.md) | Dupage | 2026 | 2029 |
| Forenetics Llc | [117001797](/search.md) | Dupage | 2018 | 2026 |
| Foresight Investigative Services, Inc. | [117001916](/search.md) | Cook | 2023 | 2029 |
| Fox Security Inc | [117001804](/search.md) | Cook | 2018 | 2029 |
| Frasco Inc | [117001650](/search.md) | Dupage | 2013 | 2029 |
| Fraud Detective Investigations Inc | [117001719](/search.md) | — | 2015 | 2026 |
| Frederick Investigations Inc | [117001708](/search.md) | — | 2014 | 2026 |
| Fti Investigations Llc | [117001324](/search.md) | Cook | 2006 | 2026 |

### Other licence categories

- [Registered Agent-In-Charge](/profession/registered-agent-in-charge.md) — 512
- [Other Controlled Substance](/profession/other-controlled-substance.md) — 503
- [Registered Firearm Instructor](/profession/registered-firearm-instructor.md) — 477
- [Licensed Appraiser Ce Course](/profession/licensed-appraiser-ce-course.md) — 462
- [Canine Handler Authorization Card](/profession/canine-handler-authorization-card.md) — 452
- [Registered Social Worker Ce Sponsor](/profession/registered-social-worker-ce-sponsor.md) — 438
- [Licensed Private Security Contractor Agency](/profession/licensed-private-security-contractor-agency.md) — 436
- [Licensed Real Estate Pre-License Course](/profession/licensed-real-estate-pre-license-course.md) — 420
- [Firearm Training Course](/profession/firearm-training-course.md) — 417
- [Licensed Environmental Health Practitioner](/profession/licensed-environmental-health-practitioner.md) — 386
- [Bcent Continuing Education Sponsor](/profession/bcent-continuing-education-sponsor.md) — 382
- [Registered Surgical Assistant](/profession/registered-surgical-assistant.md) — 378
- [Design Firm - Structural Engineering](/profession/design-firm-structural-engineering.md) — 340
- [Licensed Collection Agency Branch Office](/profession/licensed-collection-agency-branch-office.md) — 332

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Página: https://idfpr.pages.dev/profession/licensed-private-detective-agency/
Fonte: Professional Licensing — Illinois Department of Financial and Professional Regulation
Recolha: 2026-08-20