Staff and Board


Gina Ciganik

Gina CiganikChief Executive Officer, is building upon Healthy Building Network’s 15 successful years, and leading the organization into the next chapter. Healthy Building Network is poised to grow and scale its mission impact.

Gina envisions a day when the built environment contributes to the health of all people, especially communities of limited means who have the greatest health disparities and highest chemical exposures. She is nationally recognized for advancing policy initiatives and producing healthy and ultra-high-performance affordable housing. She is an experienced executive and community development leader with a proven track record of providing creative solutions to complex real estate, housing policy, and community health issues. 

Gina was previously Senior Advisor for Housing Innovation, creating and leading HBN's healthy materials expansion into the affordable housing sector with the HomeFree initiative.

Prior to joining HBN, she spent 18 years at a Minneapolis-St Paul area affordable housing development organization as the Vice President of Housing Development. Gina led the development of thousands of affordable housing units, culminating in the construction of The Rose, a 90-unit apartment in downtown Minneapolis that set a new national standard for healthy materials use in affordable housing.

Gina can be reached at gciganik-at-healthybuilding-dot-net.

Melissa Coffin

Melissa CoffinOperations Manager, is responsible for leading the development of various research projects, including the Building Products Library of the Pharos system, and work with partnering organizations around the expansion of green building approaches in the affordable housing community. Melissa works with the HBN research team to identify the composition of various building products and materials, and engages with manufacturers to expand HBN’s understanding of industry practices. Melissa also serves as Quality Manager, and is responsible for maintaining the organization’s Quality Management System. Melissa is well versed in the assessment, comparison, and selection of alternative chemicals and materials. She holds degrees in Ecology and Environmental Technology, Environmental Studies, and holds a Master of Arts in the Economic and Social Development of Regions.

Melissa can be reached at mcoffin-at-healthybuilding-dot-net.

Michel Dedeo

Michel Dedeo, Chemist, is responsible for leading the development of the Pharos Project's Chemical and Material Library. Michel received his doctoral degree from UC Berkeley and has worked on material health issues with the Green Science Policy Institute, Perkins+Will, GreenScreen for Safer Chemicals, and the UC Berkeley Center for Green Chemistry.

Michel can be reached at mdedeo-at-healthybuilding-dot-net.
Oakland, CA

Sarah Gilberg

Sarah Gilberg, Developer, has worked with HBN since 2006, beginning as Administrative Assistant and later as Accounting Associate before taking on her current position. She now works with the Chief Information Officer on the Pharos Project, the HBN website, social media and other technology and communications needs for HBN and Pharos. Sarah holds a BA in biology from Carleton College and an MBA from George Washington University.

Sarah can be reached at sgilberg-at-healthybuilding-dot-net.
Washington, DC

Larry Kilroy

Larry Kilroy, Chief Technology Officer, is responsible for leading HBN's Open Data Initiatives, including product development of the Pharos Project, Portico, and the Chemical Data Commons, building on his previous portfolio overseeing the organization's technology needs including website development, database management, online communications, and virtual office operations. Larry has extensive experience in sophisticated database development. In addition, Larry developed strategies for creating and engaging social activist networks as Senior Manager for On-Line Communications at NetAid. Currently, Larry is leading the product development of the Pharos on-line system.

Larry can be reached at lkilroy-at-healthybuilding-dot-net.
Washington, DC

Tom Lent

Tom Lent, Policy Director, has spent over 35 years working on the environmental impact of buildings, materials, and energy in the private sector and with public interest groups.  Tom oversees  Pharos rating criteria and the Chemical and Material Library, and provides support in product category development and product scoring review. He recently headed the HPD Collaborative Pilot Committee that developed the Health Product Declaration Standard. Tom previously helped coordinate development of the Green Guide for Health Care (GGHC), the US Green Building Council's LEED for Healthcare and the Sustainable Bioplastic Guidelines. He has provided leadership in development of the Enterprise Green Communty Guidelines, and has co-authored a wide range of studies of the comparative health and environmental impact of floorings, plastics and other building materials and sits on a variety of standards setting committees for indoor air quality and safer materials.

Tom can be reached at tlent-at-healthybuilding-dot-net.

Sarah Pickell

Sarah Pickell, Financial Manager, is responsible for the fiscal management of HBN and the Institute for Local Self-Reliance (ILSR). Sarah came to HBN via The Institute for Local Self-Reliance, a group for whom she continues to provide financial services. Having spent the previous 16 years with The Judge David L. Bazelon Center for Mental Health Law, Sarah brings over 20 years of financial and administrative expertise to HBN.

Sarah can be reached at spickell-at-healthybuilding-dot-net.
Washington, DC


Susan Sabella

Susan Sabella, Chief Operating Officer, brings extensive experience in environmental campaigning to HBN. Susan spent 13 years working for Greenpeace USA as the Antarctic Campaigner and Oceans Program Director. Most recently, Susan worked for seven years as a founding administrator in charge of business and operations at the Capital City Public Charter School in Washington, DC.  Susan subsequently served on Capital City's Board of Trustees as President, Vice President and Treasurer for an additional seven years.

Susan can be reached at ssabella-at-healthybuilding-dot-net.
Washington, DC

Teresa Skaar

Teresa Skaar, Executive Assistantprovides logistics support to senior staff, and is a member of HBN's affordable housing team. She serves as liaison between the HBN management team, Senior Advisors, and Board of Directors, as well as between HBN senior staff and external collaboration partners. She oversees special projects at the direction of senior staff, and performs other duties as assigned by the Executive Director. Teresa brings a diverse background to her position, having spent seven years as an office and marketing manager in the architectural industry, and five years in the affordable housing industry, working in both development and property management. 

Teresa can be reached at tskaar-at-healthybuilding-dot-net.

Rebecca Stamm

Rebecca Stamm, Researcherworks with the team at HBN to conduct vital building materials research.  She has a B.S. from Rose-Hulman Institute of Technology and M.S. from Purdue University where she studied Chemical Engineering with a focus on materials.  Rebecca has worked extensively in materials development and testing, quality control, and certification, including more than three years in the building materials industry.  She is excited to be a part of the HBN team's important work to improve the health and safety of buildings. 

Rebecca can be reached at rstamm-at-healthybuilding-dot-net.

Jon Stavis

Jon Stavis, Developer, has been consulting with HBN since 2015.  He works closely with the rest of the Development team on architecting, building, and maintaining HBN’s technologies including the Virtual Round Table, Data Commons, HPDC Builder, and HBN’s development infrastructure.  In the past, Jon has built enterprise systems and worked with early stage companies in many sectors including finance, angel investing, food, wellness, forensics, certificate authorities, and GIS. 

Jon can be reached at jstavis-at-healthybuilding-dot-net.

Peter Sullivan

Peter Sullivan, Research Associate, provides administrative and research assistance from our Vermont office. His daily responsibilities range from ground-level chemical research to handling intra-organization logistics. He holds a self-designed BA from Marlboro College in environmental politics with a focus on appropriate technology and humanistic critiques of the built environment.

Peter can be reached at psullivan-at-healthybuilding-dot-net.


Jim Vallette

Jim Vallette, Research Directorworks to understand and explain industry’s impacts on people and the planet. He has tracked materials like toxic waste, illegally-harvested timber and fish, and ozone-depleting chemicals, around the world. His findings have supported major global policy developments like the Basel Convention ban on toxic waste trade and national and international finance bans on overseas fossil fuel extraction. Over the past decade, Jim has helped to develop the Healthy Building Network’s groundbreaking research on how building materials are made, and what the impacts are on building occupants, construction workers, fenceline communities, and the global environment. 

Jim can be reached at jvallette-at-healthybuilding-dot-net.


Bill Walsh

Bill Walsh, Founder and President of the Board of Directors, has provided the long-term vision for the Healthy Building Network since February 2000. Previously he coordinated the Energy, Forest and Toxic Campaigns of Greenpeace USA and held staff attorney positions with the U.S. Public Interest Research Group and the Institute for Public Representation of Georgetown University Law Center. He holds a JD from Northeastern University School of Law and LLM in Public Interest Advocacy from Georgetown University.

Bill can be reached at bwalsh-at-healthybuilding-dot-net.




Penny Bonda

Penny Bonda, FASID, NCIDQ, LEED Fellow, has been an active participant in the green building industry since its early stages and has pioneered the development of many of the accepted practices and recognized standards that have defined the sustainability movement.  She is the founding chair of the U.S. Green Building Council committee for LEED Commercial Interiors and the ASID Sustainable Design Council, and is a principal developer of REGREEN, the USGBC/ASID green residential renovation and interior remodeling program. Though trained as an interior designer, and popularly referred to as the “mother of green interiors” Penny’s expanded expertise includes green business practices, materials evaluation and application, training, leadership, and messaging. She is a founding partner of Ecoimpact Consulting, an exciting collaboration offering companies sustainable strategies for better business. Penny is a Fellow of the USGBC and a Fellow and past president of the American Society of Interior Designers. She is the recipient of ASID’s 2007 Designer of Distinction award and the 2003 USGBC Leadership Award and was named to the National Register of Peer Professionals for GSA’s Design Excellence Program.  Her published works include the highly regarded Sustainable Commercial Interiors and Sustainability Matters, written with the General Services Administration. She serves as chair of HBN's Board of Directors. 

Brophy Christensen

Brophy Christensen is a partner in O'Melveny's San Francisco office and co-chair of the Capital Markets Practice. Brophy has extensive experience representing issuers, underwriters, and investors in a wide range of public and private equity and debt offerings and exchange offers, including initial public offerings, high-yield debt financings and convertible offerings. These transactions have involved companies in a variety of businesses, including those in financial services and banking, life sciences, REITs, semiconductors, computers, electronics, software, entertainment, and telecommunications. Brophy regularly advises investment banking clients on securities law-related matters and corporate clients on general corporate matters, including corporate governance, securities, and Sarbanes-Oxley matters.

Brophy also represents buyers, sellers and financial advisors in connection with public and private strategic transactions, including mergers, stock and asset acquisitions, joint ventures, spin-offs, and recapitalizations.

He serves as treasurer of the HBN Board of Directors.

Mary Davidge

Mary Davidge is the Director of Google's Real Estate & Workplace Services. Mary Davidge and her team are responsible for helping to define the design vision for Google's campus-scale real estate projects. Her team works with Google's senior business leaders as well as design & engineering partners to translate this design strategy into innovative work environments that align with Google's culture and help employees perform at their best every day.

Mary was recognized as a Living Building Challenge Hero in 2012, and also named a LEED Fellow in 2014. Additionally, Mary is a founding member of the Health Product Declaration Collaborative Board and serves on the Cradle to Cradle Products Innovation Institute Certification Standards Board. 

Robin Guenther

Robin Guenther, FAIA, LEED Fellow, Robert Wood Johnson Culture of Health Leader, is a Principal at the architecture firm, Perkins+Will, and a Senior Advisor at Health Care Without Harm.  Robin’s innovative healthcare projects have been published nationally and internationally. Healthcare Design magazine named her the “#1 Most Influential Designer in Healthcare” in 2010.  In 2012, Fast Company included her as one of the “100 most creative people in business.” She led the Mazzetti-Perkins+Will team, one of two winning entrants in the Kaiser Permanente Small Hospital Big Idea Competition. Robin is increasingly at the intersection of health care architecture and sustainable policy and participates in a wide range of advocacy initiatives while continuing to practice. She co-coordinated the Green Guide for Health Care, served on LEED for Healthcare committee, and is releasing the second edition of “Sustainable Healthcare Architecture,” with Gail Vittori in May 2013. In 2005, she received the Center for Health Design’s Changemaker Award for her leadership and innovation in the design of healing environments. 

She serves as immediate past chair of HBN's Board of Directors. 

Amanda Kaminsky

Amanda Kaminsky is the Founder of Building Product Ecosytems. Previously the Sustainable Construction Manager for The Durst Organization in New York City, Amanda collaborated with Construction Management, Contractors, Manufacturers, and Design Consultants to optimize materials and systems design, procurement, and handling in construction and ongoing operations. She focused on 1.5 million square feet of new residential and mixed-use development in Manhattan, alongside The Durst Organization's existing 12 million square feet.

Amanda has been involved in New York City development since 2000 when she began work with Studio Petrarca on four new townhouses with geothermal heating and cooling on Reade Street in Lower Manhattan. She then collaborated on the schematic design of The Bank of America Tower at One Bryant Park with Architects CookFox before being hired directly by The Durst Organization in 2004 as Sustainable Construction Manager for the office building's core and shell, theatre, and office interior. Onsite, she integrated 200 Contractors into strict sustainability practices and worked closely with them and their supply chains to realize ambitious building procurement and performance goals. Amanda continues to work with various project teams to manage sustainable procurement. She has a B.A. in Architecture from UVA, and is Vice Chair of the Health Product Declaration Collaborative Board, which oversees the HPD open standard format for reporting transparent building product content and associated health data.

She serves as secretary of HBN's Board of Directors. 


David Rapaport

David Rapaport has been a sustainability thought leader for more than 30 years spanning the business, non-profit and government sectors. He is Vice President of Earth and Community Care for Aveda, where he works across the business to help drive the pioneering prestige beauty company’s mission to care for the world and strive for environmental leadership and responsibility. Before coming to Minnesota to join Aveda in April 2013, he served the Governor of Vermont overseeing recovery from Tropical Storm Irene, the largest disaster to hit the state in almost a century. Dave has previously held several leadership positions with green household care products pioneer, Seventh Generation, and his experience also includes business and project development in the renewable energy industry. Before joining the business world, Dave spent two decades in the public policy arena in roles such as Executive Director of the Vermont Public Interest Research Group and various senior staff positions with the environmental organization, Greenpeace, including directing their national work on toxic chemicals and pollution prevention. He has been an adjunct professor at the University of Oregon and has worked as a consultant to UNICEF and other international agencies on issues related to sustainable development, waste management, sanitation and marine pollution. 


George Salah

George Salah has since 2013 been the Chairman & CEO of Apparent, Inc., a technology energy company, providing products and services to maximize the performance of renewable energy assets and the creation of the smart grid. Previously George had served as the Director of Real Estate and Workplace Services at Google Inc. responsible for real estate and facilities worldwide. Joining the company in 1999, he and co-founders Larry Page and Sergey Brin created the company's famous culture as their employee base grew from 35 to over 50,000, from a small 4,000 square foot office in Palo Alto to 20 million square feet of office space in 125 cities in 55 countries. Prior to Google, Salah was an Executive of Oracle's Real Estate group and has 32 years of corporate real estate and construction management experience. He has demonstrated expertise in managing the hyper growth of large-scale organizations. Throughout his career, Salah has been focused on energy efficient design and developing spaces optimized to support the health and well-being of people and the environment. Salah also served on the Board of the International Living Future Institute (ILFI).

He serves as vice chair of HBN's Board of Directors 

Linda Sorrento

Linda Sorrento, FASID, IIDA, LEED Fellow. Linda leads the National Academy of Environmental Design (NAED) as its Executive Director. The NAED provides the leadership for multidiscipline expertise and research on issues such as climate change, resource depletion, and energy security.

Linda is a consultant to the General Services Administration creating web tools to empower government or private sector users to identify cost-effective green building and procurement strategies for improved environmental performance. In addition, she’s on the development team for Sphere E, a web-tool that uses product LCAs as the basis for measuring, verifying, and reporting the environmental impacts of products.

Linda was the Senior Director of Education for the U.S. Green Building Council (USGBC). While there, she initiated strategic relationships with leading industry organizations to advance the Council’s mission of market transformation through high-quality green education. Linda’s projects have included the development of the REGREEN® residential remodeling guidelines in partnership with the American Society of Interior Designers (ASID) and the green jobs initiative. Linda joined the USGBC in 2004 as the Director of LEED for Commercial Interiors. In this role, she led the development and market implementation of the LEED for Commercial rating system that focuses on high performance green tenant spaces.

Prior to joining USGBC, Linda practiced as a corporate interior designer for 29 years. During that time, Linda was an assistant professor at George Washington University and Northern Virginia Community College where she focused on human behavior and environmental design.

Linda serves on the boards of Marymount University and Northern Virginia Community College and is a past member of the ASID National Board of Directors. She has received a number of honors including fellowship in ASID. She holds a bachelor’s degree in interior design from Syracuse University and a master’s degree in interior design from Marymount University.

Bill Walsh
Bill Walsh, Founder and President of the Board of Directors, has provided the long-term vision for the Healthy Building Network since February 2000. Previously he held leadership positions with Greenpeace USA and staff attorney positions with the U.S. Public Interest Research Group and the Institute for Public Representation of Georgetown University Law Center. He holds a JD from Northeastern University School of Law and LLM in Public Interest Advocacy from Georgetown University. In 2012, Bill shared the US Green Building Council's Leadership in Advocacy with HBN Policy Director, Tom Lent.

Tags: none