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1818 Library Street Suite 500

Reston, Virginia 20190

Email: Seangagen@GrassrootsSG.com
Tel: 703-956-3037

For any general inquiries, please fill in the following contact form:


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Sean Gagen is a principal at Grassroots   SG, LLC.  Sean has worked as an organizer, campaign manager, advocacy strategist, recruiter, executive director, and adjunct professor since 1992.  Sean has developed nationally-recognized organizing techniques & programs that are built on teaching people to engage targeted groups of voters or . . .


Sean Gagen, Principal

Organizing Programs That Make the Winning Difference





  • Alabama Democratic Party

  • American Coming Together

  • Arizona Democratic Party

  • Boone County "Putting Kids First" MO, 2011

  • BOWL PAC (Oregon)

  • Russ Carnahan for Congress (MO)

  • Russ Carnahan for Lt. Governor (MO)

  • Center for Progressive Leadership (PA)

  • Charlie Dooley for St. Louis County Executive (MO)

  • Colorado Democratic Party

  • DCCC

  • Democratic Gain

  • Earnings Tax Campaign St. Louis City 2011

  • Forward Omaha

  • Francis Slay for Mayor of St. Louis 2011

  • Houston Mayor Field IE (2015) for Sylvester Turner

  • Human Rights Campaign Camp Equality

  • Jim Suttle for Mayor of Omaha

  • Jose Menendez for State Senate (TX)

  • Kansas Democratic Party

  • Kansas Democratic Party Coordinated

  • Kentucky Democratic Party (Steve Beshear for Gov. 2011)

  • Labor Council for Latin American Advancement

  • Lee County Democratic Party

  • Missouri Democratic Party

  • Missouri Unity Table 2013

  • Montgomery County Democratic Committee (PA)

  • Moving America Forward (NM)

  • Nebraska Democratic Party

  • New England Grassroots Environmental Fund

  • New Jersey Democratic Party

  • New Jersey Workers Families Alliance

  • New York State Senate Caucus 2014

  • Pacific Resource Partnership

  • Participation 2000

  • Protect Our Local Schools, Ballot Measure 2015

  • Sierra Club

  • South Dakota Democratic Party

  • St. Louis County "Putting Kids First" 2009

  • Tennessee Democratic Party

  • Texas Democratic Party

  • Texas Together

  • Tom Suozzi for Congress NY-03  (Primary 2016)

  • We are Wisconsin

  • Wellstone Action!