Mark Prentice: Email & Phone Number

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Director of External Relations at The Sheri and Les Biller Family Foundation|Greater Seattle Area, United States

Position:

Director of External Relations at The Sheri and Les Biller Family Foundation

Location:

Greater Seattle Area, United States

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Last updated: 2026-06-13

Updated: 2026-06-13

Found email addresses for Mark Prentice:

Business emails:

m*******e@gpg.com

Personal emails:

m*************e@gmail.com

Found phones for Mark Prentice:

+1-909-***-**70,

+1-520-***-**63

A different Mark Prentice?

Work Experience 17 years

Director of External Relations at The Sheri and Les Biller Family Foundation

Nov 2025 - Current

Founder & President at Union Street Strategies

Jan 2020 - Apr 2026

Communications Director, Mayor Jenny Durkan at City of Seattle

Oct 2018 - Jan 2020

Senior Communications Advisor to Mayor Jenny Durkan at City of Seattle

Jan 2018 - Oct 2018

Senior Communications Strategist for Policy, Impact, and Philanthropy at Vale Group

Nov 2016 - Dec 2017

Communications Director at GIFFORDS

Mar 2014 - Nov 2016

Press Secretary & Speechwriter, Congresswoman Nita Lowey (NY-17) at U.S. House of Representatives

Jan 2013 - Mar 2014

Communications Director at Ron Barber for Congress

Aug 2012 - Dec 2012

Senior Associate, Strategic Communications at Finsbury Glover Hering

Nov 2011 - Aug 2012

Associate at Scoville Public Relations

Aug 2009 - Aug 2011

Communications and Research Fellow at People for Patty Murray

Jun 2010 - Nov 2010

Communications Fellow, U.S. Policy at German Institute for International and Security Affairs

Apr 2009 - Jul 2009

Mark Prentice started working in 2009, then the employee has changed 10 companies and 10 jobs. On average, Mark Prentice works for one company for 1 year 6 months.

Mark is proficient in English and German. Their professional focus is Campaign Plans, Campaign Strategies, and Communications Planning across 3 core areas.

Education

Bachelor of Arts with Honors at Whitman College

Frequently Asked Questions

What is Mark Prentice's email address?

SignalHire found verified email addresses for Mark Prentice, both business and personal. Their business email is m*******e@gpg.com, and personal emails include m*************e@gmail.com.

What is Mark Prentice's phone number?

SignalHire found multiple verified phone numbers for Mark Prentice: +1-909-***-**70, and +1-520-***-**63.

How do I contact Mark Prentice at The Sheri and Les Biller Family Foundation?

You can reach Mark Prentice 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 Prentice's professional background?

Mark Prentice has 17 years of professional experience. They have held roles including Founder & President , Communications Director, Mayor Jenny Durkan, and Senior Communications Advisor to Mayor Jenny Durkan at companies such as Union Street Strategies, City of Seattle, and City of Seattle. Their education includes Bachelor of Arts with Honors from Whitman College.

Is Mark Prentice's contact information up to date?

Yes. Mark Prentice's SignalHire profile was last updated on 13 June 2026, reflecting their current position as Director of External Relations at The Sheri and Les Biller Family Foundation in Seattle, WA, United States.

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