green seal staff

Green Seal’s staff works cohesively towards our mission of creating a more sustainable world by providing scientific research and standards, certification, greening partnerships and other services to businesses and institutions.

Arthur B. Weissman, Ph.D.  President & CEO

Arthur has over 30 years of experience in environmental programs, policy, standards, and enforcement. He has spent over half that time at Green Seal, which he has led for the past fifteen years. In his sustainability work, he has also served as founding chair of the Global Ecolabeling Network and as international convener for ISO standards. Prior to joining Green Seal, he was responsible for developing national policy and guidance for the Superfund program at the U.S. Environmental Protection Agency. He also served as a Congressional Science Fellow and worked for The Nature Conservancy in Connecticut. He holds a Ph.D. from Johns Hopkins University in physical geography and environmental science, a master’s degree in natural resource management from Yale School of Forestry and Environmental Studies, and a bachelor’s degree from Harvard College. His outside interests include family, music, hiking/walking, birding, reading, writing, and thinking. Email: kdanaher [at] greenseal.org 

Mehreteab Masho  Chief Financial Officer

Masho joined Green Seal in 1994. He is in charge of all financial and administrative aspects of the organization’s operations. He has over 30 years of experience in diversified accounting, budgeting, and financial forecasting. Prior to joining Green Seal, Masho held various accounting positions, including controller with Inter Systems Inc., a high-tech government contracting firm. Masho received his M.B.A. from the University of the District of Columbia. Email: mmasho [at] greenseal.org  

Linda H. Chipperfield  Vice President of Marketing & Communications

Linda has over 25 years of experience in creative marketing and guides the brand communication efforts for Green Seal. Prior to joining Green Seal in 2006, she served as Creative Director and Team Leader at Noble Communications, and owned and operated a design and marketing shop in Springfield, Missouri. She earned a B.F.A. in design from Southwest Missouri University and has extensive experience in media communications. Linda serves on the board of directors for the Global Ecolabelling Network and conducts peer reviews of the network members. Linda also served on the executive committee and conservation committee for the Missouri Sierra Club and as a delegate for the regional conservation committee for the National Sierra Club.  Email: lchipperfield [at] greenseal.org

Mark T. Petruzzi  Senior Vice President of Outreach & Strategic Relations

Mark leads Green Seal’s engagement with purchasers, industry groups, trade associations and other external organizations that share Green Seal’s goal of creating a more sustainable marketplace. Over the last 15 years, in his various roles in the Standards and Certification departments, Mark  has conducted research on the life cycle impacts of products and services, developed criteria to address key impacts, and evaluated products and services for compliance with Green Seal’s standards in a wide range of product and service categories. Previously Mark was Vice President of  Green Seal’s Certification Program. He holds a B.S. in mechanical engineering and a M.S. in civil and environmental engineering from The George Washington University.  Email: mpetruzzi [at] greenseal.org

Andrew Beauchamp  Project Coordinator

Andrew joined the Green Seal team in 2007 as an intern and began work full time in 2008 after he graduated from The George Washington University with a B.A. in political science and public policy. Andrew splits his work between the Science and Standards department and the Institutional Greening Program. In the Science and Standards department, he manages stakeholder relations and assists with standard development projects, and in the Institutional Greening Program he leads project development and implementation. Email: abeauchamp [at] greenseal.org

Cerise Bridges  

Certification Specialist

Cerise joined Green Seal in 2009 as an intern with an interest in combining her education and work experiences in hospitality management and environmental policy. She became a staff member in 2010. She provides assistance and expertise to clients pursuing certification of Green Seal’s service-related standards. Originally from the Chicago area, Cerise has spent her adult life in Washington, D.C., where she earned a B.B.A. from Howard University and an M.A. in environmental policy from American University.  Email: cbridges [at] greenseal.org

Nesia Brown  Receptionist  

Nesia joined Green Seal in 2008. She’s responsible for a variety of office work and administrative support. Prior to joining the Green Seal staff Nesia worked in the Office of Legal Counsel at the United States Department of Justice.

Email: nbrown [at] greenseal.org

Liliana Cami  Accounting Associate

Liliana joined Green Seal in 2009 as Accounting Associate responsible for accounts payable, accounts receivable, payroll and other related duties. She came to the United States from Albania in 1991 and has a degree from Albania University with a concentration in Business Administration. Prior to joining Green Seal, she worked for 16 years in an administrative/accounting role in the private sector.  Liliana is enthusiastic about working together to reach Green Seal’s goal of a better, more sustainable world.                     

Email: lcami [at] greenseal.org

Kathryn Danaher  Executive Assistant to the CEO 

Susan has over 15 years of experience in sales and marketing. Prior to joining Green Seal in 2010, she worked as a raw material manager for Procter & Gamble. During her 15 years there, she was a member of many new product launch teams. As a member of the Outreach and Strategic Relations team, Susan is responsible for new business development and client relations. Susan holds a B.S. in business administration from North Carolina Wesleyan College.

Email: sheaton [at] greenseal.org

Watson joined the Certification Team in 2010. He coordinates the application process for certification and assists with Compliance Monitoring reviews. Prior to Green Seal, he worked at B Lab, where he certified B Corporations and handled administrative and finance matters. Watson graduated from Haverford College, receiving a B.A. in growth and structure of cities with an environmental studies concentration. Email: wmillison [at] greenseal.org

 

Mary is director of certification and the technical lead for product certification. Prior to joining Green Seal, Mary worked as a research scientist with the University of Tennessee’s Center for Clean Products and Clean Technologies. Mary has 25 years of experience in environmental research and consulting, with a focus on evaluating the fate and effects of chemicals released to the environment, developing tools for evaluating cleaner products and cleaner technologies, and hazardous waste site remediation. She has a Master of Science degree in environmental engineering from the University of Minnesota and a Bachelor of Science degree in natural resources/water chemistry from the University of Wisconsin-Stevens Point. In her spare time, she enjoys gardening, artwork, and long walks in the woods. Email: mswanson [at] greenseal.org

Brie H. Welzer    Marketing & Communications Associate