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: 703.478.0205
General Email:
Membership Phone: 866.682.2729 x7080
Membership Fax: 703.708.7060
Membership Email:


Press/Media Inquiries: 866.682.2729 x7086 or


Staff Directory

Executive Office

David Lewis, Executive Director
866.682.2729 x7061

Siobhán McMahon, CAE, Chief Operations Officer
866.682.2729 x7076

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

Angela Tombul, Executive Assistant and 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


Lorie Grooms, CMP, Events Specialist
866.682.2729 x7087


Allison Barton-Kramer, Director of Certification
866.682.2729 x7079


Molly Barrie, Director of Recognition Programs
866.682.2729 x7075

Susan G. Lambert, Recognition Programs Manager
866.682.2729 x7067


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

Julie Stout-Matthews, Manager of eLearning
866.682.2729 x7077

Garrett Johnston, Education Coordinator
866.682.2729 x7066


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

Theresa Boulware, Membership Manager
866.682.2729 x7080

Susan Anderson, Member Engagement Manager
866.682.2729 x7097

Marketing & Communications

Amanda Bow, Director of Marketing & Communications
866.682.2729 x7086

Rachelle Perez, Graphic Designer
866.682.2729 x7084

Annie Henderson, Marketing & Communications Manager
866.682.2729 x7074

Beau Castro, Digital Marketing Coordinator
866.682.2729 x7068

Patricia George, Editor, School Business Affairs 

Finance & Administration 

Melissa Williams, Accounting & Office Manager
866.682.2729 x7071