Colorado Chapter Staff & Board of Directors

Samantha Tillner

Executive Director

Contact me for membership and general requests.

Zane Kaugare

Senior Project Manager

Contact me for the Denver Christkindlmarket and cultural projects.

Grace Deibert

Project Assistant

Barbara Wittmann

President, GACC-CO
CEO, IT Zeitgeist

Paul Maricle

Vice President
Castle Lantz Maricle, LLC

Gregor Vogrin

Vice President
Syngroup Management Consulting LLC

Samantha Tillner

Secretary
GACC Colorado Chapter

Peter Einsle

CO Chapter President

Dr. Samuel Gage

Industrial Decarbonization Consultant
Energetics

Stefan Garbade

Tripp Lake

Partner
Lewis, Brisbois, Bisgaard & Smith LLP

Thomas Mayr

Managing Director
F/LIST USA

Peter Sehl

Director of Sales, Mining
Beumer

Markus Thamm

Chadwick V.R. Williams

Employing Broker/Owner
Denver Real Estate Professionals