William J Mercer

License

Licensed by

Illinois Department of Financial and Professional Regulation

License number

229099143

Status

Active

First issued

February 17, 2026

Expires

February 17, 2029

License holder

William J Mercer

Entity type

Individual

Classifications

• Firearm Control Card (Detective Board) Security & Investigations

More from the license record

Current term began

02/17/2026

Other Illinois licenses under this name

• IL
  William J Mercer

  License 115001355

  Licensed Private Detective
  Active

  Tinley Park, IL

  Expires May 31, 2029
• IL
  William J Mercer

  License 129042200

  Permanent Employee Registration (Detective Board)
  Expired

  Tinley Park, IL

  Expired May 31, 1997
• IL
  William J Mercer

  License 229048734

  Firearm Control Card (Detective Board)
  Expired

  Tinley Park, IL

  Expired Feb 28, 2007
• IL
  William J Mercer

  License 229063413

  Firearm Control Card (Detective Board)
  Expired

  Orland Park, IL

  Expired Mar 2, 2024
• IL
  William J Mercer

  License 230018532

  Original Firearms Training (Detective Board)
  Active

  Tinley Park, IL

  Expires Jan 1, 2099
• IL
  William J Mercer

  License 249000275

  Licensed Fingerprint Vendor (Detective Board)
  Active

  Tinley Park, IL

  Expires May 31, 2029

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