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Staff & Board

Amanda Brien – Operations and Committee Manager

Amanda Brien has spent the last several years managing HPDC’s Technical Committee and numerous Technical Sub-Groups while providing operational and strategic support to the HPDC team. Amanda is experienced across many aspects of standards-setting and is specialized in technology focused committee management, tools, and membership.

Elizabeth Day – Membership Coordinator

Elizabeth Day joined the Health Product Declaration Collaborative’s team in 2020 and manages the day-to-day operations of HPDC’s membership program. She has experience driving growth and retention strategies across a diverse portfolio of member-based organizations. Elizabeth Day is a recent graduate of Merrimack College in Business Administration, Marketing, and Communications & Media.

John Geyer – Director, Manufacturer, Ecosystem and Information Technology Programs

John Geyer joined HPDC in May 2016.  He facilitates the Manufacturing Advisory Panel (MAP) and Ecosystem Partners. He also has responsibility for HPDC information technology and the HPDC Builder application.  Prior to his work with HPDC, Mr. Geyer has had 28 years of diverse industry experience as a senior project manager in various industries, ranging from aerospace manufacturing and construction to information systems and software development. His career has been driven by a desire to improve human productivity through the application of technology and systematic process improvement methodologies.  He has consistently worked to bring together all members of a work team, from shop floor to executive management, with the belief that real solutions must reflect the knowledge, experience, and requirements of each stakeholder. His academic degrees are from Western Michigan University and the University of Virginia and he has extensive professional training in Project Management, Lean Manufacturing, and Quality Systems.  He is a certified Project Management Professional and ISO 9001/AS9100 Lead Auditor.

Millali Marcano – Manager, Technical Support

Millali Marcano joined HPDC in February 2016. Millali is a Product Manager with over 6 years of experience in material ingredients reporting and product transparency. She provides technical support to building product manufacturers working on creating HPDs and guidance to the AEC community when evaluating HPDs eligibility for green building projects. Millali is a graduate of Universidad Simon Bolivar and Tufts University in Materials Engineering and Engineering Management.    

Isabella Mendoza – TSG and Membership Support

Tristan Roberts – Director, Technical and Education Programs

Tristan Roberts is responsible for leading staff support for HPDC’s Technical Committee, education programs, and the evolution of the HPD Open Standard. Mr. Roberts is a leader in the advancement of green building practices. Prior to joining HPDC in May 2018, he was part of BuildingGreen, Inc.  for eleven years, where he most recently served as Chief Strategy Officer, moderating and leading the community development of LEEDuser forum which supports over 10,000 users. He is the author of hundreds of articles and in-depth reports on building industry trends and technologies, and is a frequent speaker and educator in the areas of green building and sustainable design. His objective stance and focus on practical tools has earned him the trust of a wide spectrum of stakeholders in the industry, including architects, sustainability professionals, manufacturers, and nonprofit groups. Mr. Roberts has taught sustainability and building science at the Boston Architectural College.

Paula Schaper – Marketing Director

Paula Schaper is a seasoned marketing professional who brings her 35-year career experience in authentic branding, economic development and community building to the mission of HPDC. Paula oversees HPDC strategic communications including key messaging, membership engagement, graphic design, social media and content creation. For the last 20 years, she has managed her own marketing company WestWordVision, helping private sector companies, nonprofit organizations, municipalities and economic regions recognize and use their authentic character assets as the basis for collaborative, sustainable communication, decision-making and action. 

Joel Ann Todd – Senior Advisor 

Joel Ann Todd joined HPDC in May 2015 as Director, Technical and Education Programs. She now serves as Senior Advisor to HPDC. Prior to HPDC Ms. Todd has been involved in green buildings and sustainability issues for more than 25 years. She began her work on green buildings in 1989, directing preparation of materials reports for the American Institute of Architects’ Environmental Resource Guide for which she developed a streamlined life-cycle assessment methodology.  She has volunteered with the U.S. Green Building Council since its early days, as Vice Chair of the Technical and Scientific Advisory Committee, as Vice Chair and Chair of the LEED Steering Committee, and currently as Co-Chair of the Social Equity Working Group.  Joel has published technical papers as well as articles for lay audiences and has been an invited speaker at conferences around the world.  She was a co-author of the recent USGBC publication, Better Building Materials: Understanding Human Health and Environmental Attributes.  She currently serves as a peer reviewer for Building Research and Information and has served on Scientific Committees for several international conferences. Joel has also developed education and training programs on green buildings, sustainability, life-cycle assessment, LEED, and other topics and serves as a Pro-Reviewer for USGBC’s education program.

Helene Tum – Committee Support

Helene Tum joined the HPDC team in November 2019 and supports the operations of the HPDC Technical Sub-Groups. She has expertise in managing a diverse range of technically focused committees, working groups, and Boards. Helene is a graduate of Bentley University in Management.

Wendy Vittori – Executive Director

Wendy Vittori joined the Health Product Declaration Collaborative as Executive Director in May 2015.  An accomplished business executive, Ms. Vittori most recently was founder and principal consultant of Vittori Consulting LLC, which provides executive counsel on innovative approaches for strategic management and organization performance to organizations in the private, public and non-profit sectors.  In this capacity she was engaged with the HPDC as a strategic advisor from its inception.  Ms. Vittori was a recipient of the Women in Sustainability Leadership Award in 2017.  Previously she was a senior executive with both the Intel and Motorola corporations, where she led a variety of businesses in the computer hardware, software and systems industry, and was engaged in the leadership of open industry standards.  She began her career as a software engineer.  She serves on several non-profit boards, focused on the economic development of the Arizona-Sonora region, and is an associate faculty member at the Non-Profit Management Institute of the ASU Lodestar Center for Philanthropy and Nonprofit Innovation.  Ms. Vittori is a graduate of Harvard College, received her MBA from Northeastern University and was a doctoral candidate at the Harvard Business School.

HPD Collaborative – 2021 Board of Directors




Term Ending

Amanda Kaminsky

Building Product Ecosystems



Gail Vittori

Center for Maximum Potential Building Systems

Vice Chair


Tim Cole

Cole Collaborative



Robin Guenther

Perkins & Will



Jane Abernethy




John Amatruda

Vidaris, Inc.



Rand Ekman




Heather Henriksen

Harvard University



Tyler Krehlik




Josée Lupien




Mike Manzi

Bora Architects



Lona Rerick




Rachelle Schoessler Lynn




Margaret Whittaker

ToxServices LLC



Dennis Wilson




Newly-appointed Emeritus HPDC Members:

Jean Hansen, HDR

Jean is a founding HPDC Board member who has served as HPDC Secretary and Executive Committee member. She currently serves as the acting Secretary.

Susan Kaplan, HLW

Susan is a founding HPDC Board member who has served as HPDC Secretary and Executive Committee member.

Anthony Ravitz, Google

Anthony is a founding HPDC Board member.