Contact Us

Email us
Phone: +1.678.367.0981
Fax: +1.240.547.1795

Headquarters Address

International Society of Arboriculture
270 Peachtree Street NW
Suite 1900
Atlanta, GA 30303
United States

Mailing Address

International Society of Arboriculture
PO Box 191
Annapolis Junction, MD 20701
United States

Who We Are
Who We Are Our Leaders Headquarters Directory

To reach staff by phone, please dial (USA) +1.678.367.0981 and their three-digit extension.

Administration

Caitlyn Pollihan
CEO and Executive Director
Email Caitlyn Pollihan
Ext. 201
Crystal Johnson
Governance and Administration Executive Assistant
Email Crystal Johnson
Ext. 230

Credentialing Services

Luana Vargas
Director of Credentialing Services
Email Luana Vargas
Ext. 213
Lucia Coghlan
Credential Services Manager
Email Lucia Coghlan
Ext. 241
Tabitha Schwartz-Norris
Credentialing Partner and Operations Manager
Email Tabitha Schwartz-Norris
Ext. 206
Lukas Alfen
Publication and Documentation Lead
Email Lukas Alfen
Ext. 255
Lauren Curran
Examinations Development Manager
Email Lauren Curran
Ext. 260
Robin Williams
Credentialing Operations Lead
Email Robin Williams
Ext. 260
Niko Young
Credentialing Operations Specialist
Email Niko Young
Ext. 244
Samantha Ramirez
Credential Services Specialist
Email Samantha Ramirez
Ext. 205
Imani Berry
Examinations Development Lead
Email Imani Berry
Ext. 243
Yelena Mears
Lead Customer Service Specialist
Email Yelena Mears
Ext. 237
Shaylyn Davis
Customer Service Specialist
Email Shaylyn Davis
Ext. 247

Educational Products and Services

Jamie Vidich
Director of Educational Products and Services
Email Jamie Vidich
Ext. 203
Tara Costanzo
Outreach and Education Lead
Email Tara Costanzo
Ext. 235
Owen Barnes
Instructional Designer
Email Owen Barnes
Ext. 252
Rebekah Holtzclaw
Editorial Assistant
Email Rebekah Holtzclaw
Ext. 218
Lindsey Mitchell
Managing Editor
Email Lindsey Mitchell
Ext. 204
Avery Lewis
Editorial and Publishing Specialist
Email Avery Lewis
Ext. 228
Chericka Ashley
Educational Products and Services Manager
Email Chericka Ashley
Ext. 226
Neal Yates
EPS Support Specialist
Email Neal Yates
Ext. 233

Financial Services

Fred Harroway
Director of Financial Services
Email Fred Harroway
Ext. 221
Karen Lacatell
Accounting Specialist
Email Karen Lacatell
Ext. 219
Brenda Rose
Accounting Specialist
Email Brenda Rose
Ext. 222
Randy Ramirez Guzman
Accounting Clerk
Email Randy Ramirez Guzman
Ext. 248

Human Resources and People Services

Chastity Austin
Director of HR and Compliance Services
Email Chastity Austin
Ext. 215
Eric Marsh
Technology and Project Manager
Email Eric Marsh
Ext. 209

Marketing and Event Services

Alice Bagley
Director of Marketing and Communications
Email Alice Bagley
Ext. 208
Jessica Carroll
Partner Relations Manager
Email Jessica Carroll
Ext. 212
Paige Taylor
Marketing Specialist
Email Paige Taylor
Ext. 227
Abigail Murphy
Communications Specialist
Email Abigail Murphy
Ext. 225
Kenya Miles
Marketing Specialist
Email Kenya Miles
Ext. 239
Amanda Marisko
Event Planner
Email Amanda Marisko
Ext. 210
Kathryn Campbell
Event Services Assistant
Email Kathryn Campbell
Ext. 253

Member Services

Matt Vieson
Director of Member Services
Email Matt Vieson
Ext. 223
Henry Miller
Compliance and Ethics Specialist
Email Henry Miller
Ext. 229
Reyuna Johnson
Membership Specialist
Email Reyuna Johnson
Ext. 231
Katie Branch
Component Specialist
Email Katie Branch
Ext. 217