Mark Monaghan: Email & Phone Number

Detective at Delaware County PA Office of District Attorney Criminal Investigations Division|Newtown Square, Pennsylvania, United States

Position:

Detective at Delaware County PA Office of District Attorney Criminal Investigations Division

Location:

Newtown Square, Pennsylvania, United States

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Last updated: 2026-07-04

Updated: 2026-07-04

Found email addresses for Mark Monaghan:

Business emails:

m***@aol.com

Personal emails:

m***@aol.com,

m***@atf.gov,

m***@hotmail.com,

m***@gmail.com

Found phones for Mark Monaghan:

+1-520-***-**29,

+1-323-***-**62

A different Mark Monaghan?

Work Experience 17 years

Detective at Delaware County PA Office of District Attorney Criminal Investigations Division

Aug 2022 - Current

Supervisory Special Agent ATF -Retired at Bureau of Alcohol Tobacco and Firearms

Jan 2017 - Aug 2022

Branch Chief Firearms Operation Division at ATF

Nov 2020 - Jun 2021

Liaison Officer at ATF

Sep 2019 - Jun 2021

Criminal Investigator-Special Agent at ATF

Feb 2009 - Jan 2017

Intelligence Officer- Special Agent at ATF

Nov 2013 - Nov 2015

Mark Monaghan started working in 2009, then the employee has changed 2 companies and 5 jobs. On average, Mark Monaghan works for one company for 3 years 8 months.

Their professional focus is Agency Relationship Management, Criminal Investigations, and General Investigations across 3 core areas.

Frequently Asked Questions

What is Mark Monaghan's email address?

SignalHire found verified email addresses for Mark Monaghan, both business and personal. Their business email is m***@aol.com, and personal emails include m***@aol.com, m***@atf.gov, and m***@hotmail.com.

What is Mark Monaghan's phone number?

SignalHire found multiple verified phone numbers for Mark Monaghan: +1-520-***-**29, and +1-323-***-**62.

How do I contact Mark Monaghan at Delaware County PA Office of District Attorney Criminal Investigations Division?

You can reach Mark Monaghan 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 Monaghan's professional background?

Mark Monaghan has 17 years of professional experience. They have held roles including Supervisory Special Agent ATF -Retired, Branch Chief Firearms Operation Division, and Liaison Officer at companies such as Bureau of Alcohol Tobacco and Firearms, ATF, and ATF.

Is Mark Monaghan's contact information up to date?

Yes. Mark Monaghan's SignalHire profile was last updated on 4 July 2026, reflecting their current position as Detective at Delaware County PA Office of District Attorney Criminal Investigations Division.

Mark Monaghan Namesakes

Name

Company

Position

Mark Monaghan

QKM Consult, LLC

Principal EDI Integration Market, Vendor, Product and technology analysis.

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Mark Monaghan

GHD

Senior Engineer

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