Mark Williamson

Mark Williamson: Email & Phone Number

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Lieutenant at Collier County Sheriff's Office|Naples, Florida, United States

Position:

Lieutenant at Collier County Sheriff's Office

Location:

Naples, Florida, United States

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Last updated: 2026-04-23
Updated: 2026-04-23

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Work Experience 26 years

Lieutenant at Collier County Sheriff's Office

Mar 2021 - Current

Homicide Sergeant at Collier County Sheriff's Office

May 2016 - Mar 2021

Career Criminal Sergeant at Collier County Sheriff's Office

Jun 2010 - May 2016

General Crimes Sergeant at Collier County Sheriff's Office

Apr 2006 - Jun 2010

Vice and Narcotics Investigator at Collier County Sheriff's Office

Dec 2002 - Apr 2006

Patrol Deputy at Collier County Sheriff's Office

Mar 2000 - Dec 2002

Mark Williamson started working in 2000, then the employee has changed 5 jobs. On average, Mark Williamson works for one company for 4 years 4 months.

Their professional focus is Budgeting & Forecasting, Conflict Resolution, and Crime Scene Investigations across 3 core areas.

Education

Master of Arts at Barry University

Bachelor of Science at Old Dominion University

Skills

Narcotics Investigations , Budgeting & Forecasting, Evidence Preservation, Defensive Driving, Small Unit Leadership, Mission Commander, Leadership, Undercover, Criminal Law, Criminal Investigations, Crime Scene Investigations, Operational Planning, Interpersonal Skills, Conflict Resolution, Interrogation Techniques, Homicide Investigations, Narcotics Identification, Defensive Tactics

Frequently Asked Questions

What is Mark Williamson's email address?

SignalHire found a verified business email address for Mark Williamson: w*************k@colliersheriff.org.

What is Mark Williamson's phone number?

SignalHire found a verified phone number for Mark Williamson: +1-***-***-8332.

How do I contact Mark Williamson at Collier County Sheriff's Office?

You can reach Mark Williamson through SignalHire by unlocking their verified email and direct phone number (free signup, no credit card needed). SignalHire is the fastest route if you need their contact details immediately.

What is Mark Williamson's professional background?

Mark Williamson has 26 years of professional experience. They have held roles including Homicide Sergeant, Career Criminal Sergeant, and General Crimes Sergeant at companies such as Collier County Sheriff's Office, Collier County Sheriff's Office, and Collier County Sheriff's Office. Their education includes Master of Arts from Barry University, and Bachelor of Science from Old Dominion University.

Is Mark Williamson's contact information up to date?

Yes. Mark Williamson's SignalHire profile was last updated on 23 April 2026, reflecting their current position as Lieutenant at Collier County Sheriff's Office in Naples, FL, United States.

Mark Williamson Namesakes

Name
Company
Position
Mark Williamson
Rogue Creations NZ
Artist
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Mark Williamson
Retired
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