General Information

44790 Maynard Square, Suite 200
Ashburn, VA 20147
United States of America
Main Phone: 866.682.2729 (toll free within the US)
Main Fax: 703.708.7060
General Email:
Membership Phone: 866.682.2729 x7080
Membership Fax: 703.708.7060
Membership Email:


Press/Media Inquiries: 866.682.2729 x7065 or


Staff Directory

Executive Office

Siobhán McMahon, CAE, Chief Operations Officer/Interim Executive Director
866.682.2729 x7076

Sabrina Soto, CAE, Chief Business & Leadership Officer
866.682.2729 x7088

Angela Tombul, Executive Assistant & Governance Relations
866.682.2729 x7063

Government & Public Affairs

Elleka Yost, Director of Advocacy
866.682.2729 x7065

Corporate Partnerships

Sabrina Soto, Chief Business & Leadership Officer
866.682.2729 x7088

Mary Kay Hill, Corporate Relationships Manager
866.682.2729 x7089

Rachel Galzerano, Corporate Partnerships Coordinator
866.682.2279 x7083


Lorie Grooms, CMP, Details First LLC Event Planning, acting as Director of Events
866.682.2729 x7087


Allison Barton-Kramer, Director of Certification & Standards Development
866.682.2729 x7079


Susan G. Lambert, Recognition Programs Manager
866.682.2729 x7067


Cristin Watson , Director of Education and Research
866.682.2279 x7086

Julie Stout-Matthews, Manager of eLearning
866.682.2729 x7077

Garrett Johnston, Education Coordinator
866.682.2729 x7066

Anthony Rocco, Online Education Coordinator


Jackie Wallenstein, Director of Membership, Engagement & Outreach
866.682.2729 x7082

Theresa Boulware, Membership Manager
866.682.2729 x7080

Susan Anderson, Engagement & Education Manager
866.682.2729 x7097

Lesley Perez, Membership Outreach Coordinator

Victoria D'Ambra, Membership Recruitment Coordinator

Alisha Giffin, Data Entry Coordinator

Marketing & Communications 

Tim Hutchison, Director of Marketing & Communications
866.682.2729 x 7072

Beau Castro, Marketing & Communications Manager
866.682.2729 x7068

Tahirah Martin, Communications Coordinator
866.682.2729 x7069

Rachelle Perez, Graphic Designer
866.682.2729 x7084

Patricia George, Editor, School Business Affairs 

Finance & Administration 

Melissa Williams, Finance & Administration Manager
866.682.2729 x7071