GBI Staff

Green Building Initiative (GBI) is backed by a dedicated, professional staff that is committed to helping create sustainable, healthy, and resilient buildings for all.

Vicki Worden

Entrepreneur, sustainability professional, and now as President & CEO of the Green Building Initiative (GBI), an international nonprofit dedicated to improving the impact of buildings on climate and society, Vicki Worden has supported a myriad of industries, corporations, government agencies, and international nonprofits progress sustainability goals while increasing ROI. In an age of great change in the […]


Nina Armstrong

Nina Armstrong

In her role as Associate Director of Market Development, Nina provides market development support by establishing and maintaining relationships with national corporate portfolio managers and other portfolio managers, and community members. She represents GBI at various national conferences by attending, presenting at, and hosting booths as well as identifying speaking and sponsorship opportunities to increase […]


Megan Baker

As Vice President of Engagement, Megan Baker is responsible for development and implementation of GBI’s global marketing and communications strategies. She joined GBI in 2017 and held roles in client services, business development, and education before rising to her current role in 2023. Megan is a passionate advocate for increasing accessibility of sustainable, healthy, and […]


Emily Bowers

Emily Bowers

As Senior Director of State & Local Affairs, Emily works with state and local government entities, as well as interested policymakers, to provide resources and support in the shared pursuit of reducing climate impacts in the built environment. By working closely with local decision makers to open markets to GBI tools, Emily ensures that communities […]


Nilesh Bansal

Nilesh Bansal

As the Vice President, Sustainable Buildings and Program Innovation, Nilesh’s primary focus is on spearheading program development and collaborating with team members to shape the organization’s long-term strategic vision, particularly in alignment with GBI’s sustainability goals. Prior to this role, Nilesh served as the Director of Sustainability at a leading tech startup where he led […]


Christopher Binder

In his role as Sr. Manager of Policy and Engagement, Christopher supports GBI’s advocacy efforts with state and local decision-makers, works to open new markets to GBI’s tools and educational offerings, and provides highly detailed project management and administration for building certification projects. Christopher has a strong foundation in customer service and possesses an in-depth […]


Anna Bushee

Anna comes to GBI with a background in non-profit educational association management, customer service, and direct caregiving. She graduated Cum Laude from the University of Massachusetts with a bachelor’s in Communication and a minor in Anthropology. In her role as Senior Manager of Client Services and Engagement, Anna provides highly detailed project management and administration […]


Kate Callahan

Kate Callahan

As Senior Director of Client Services and Engagement, Kate supports GBI’s Client Services team to ensure the delivery of exceptional project management and educational offerings. She works directly with project teams evaluating sustainability objectives and pursuing Green Globes certification and Guiding Principles Compliance verification, providing expert assistance and guidance. Additionally, Kate works closely with the […]


Adam Feiszli

As Director of Technology & Operations, Adam leads the development and maintenance of GBI’s custom-built assessment platforms, providing user-friendly and collaborative tools for the green building community. He also drives data analytics initiatives to generate operational insights and oversees internal technology systems to enhance workflows and efficiency for GBI’s staff. Adam brings to GBI four […]


Elizabeth Fjerstad

In her role as Associate Director of HR & Administration, Elizabeth provides support to a variety of services with GBI, including managing our day-to-day HR operations, finance and administration programs, assisting with general inquiries, and various other administration programs. She comes to GBI with experience in both customer service and human resource administration. Elizabeth holds […]


Anthony Garcia

In his role as Senior Manager of Business Intelligence & Engagement, Anthony provides highly detailed project management and administration of building certification projects, assists with general inquiries, and develops and delivers educational training. Anthony comes to GBI with experience in multifamily and student housing, financial services, and customer service. He holds a bachelor’s degree in […]


Anthony Guerra

Anthony Guerra

As Senior Director, AEC Quality Assurance & Technical Content, Anthony contributes to the development of GBI standards, programs, and resources and he performs reviews on both building assessment reports and GBI assessment processes. His experience and expertise as a design professional provides the GBI community with additional technical support to assist with realizing sustainability goals […]


Amryl Jenkins-Brooks

As Director, Finance & Administration for GBI, Amryl supports GBI’s clients, leadership, and team members. Prior to GBI, Amryl worked for 20 years in the office equipment technology industry, where she was able to obtain experience in general administration, office management, human resources, accounting, and sales support. Her experience in change management has taught her […]


Katy Johnson

As Senior Manager of Client Services and Engagement, Katy plays a crucial role in overseeing complex building certification projects with meticulous care and precision. She also assists in the standards and development process as well as GBI’s DEIB initiatives. With over a decade of experience in customer service, specializing in administration and project management, Katy […]


Joe Kurle

Joe Kurle

As the Director of Digital Marketing & Brand Strategy, Joe supports marketing, communications, and creative production across all channels to promote GBI’s mission and support it’s stakeholders. With over 8 years of experience in nonprofit communications, digital marketing, and content production, Joe advances green building and climate change solutions with engaging storytelling. He has previously […]


Emily Marx

As Associate Director of Standards and Program Support, Emily manages and collaborates with volunteer subject matter experts to obtain consensus on technical requirements for GBI’s ANSI Standards. She also works closely with the Client Services team and Green Globes Assessors to create, update, and manage many of GBI’s certification questionnaires. Emily has fifteen years of […]


Jenniffer Mata

In her role as Senior Manager of Client Services and Engagement, Jen provides highly detailed project management and administration of building certification projects, assists with general inquiries, and develops and delivers educational training. Jen comes to GBI with ten years of bilingual experience in customer service in both the private and public sectors. She has […]


Jenna Morgan Hamilton

Jenna is a Washington, D.C.-based leader with more than 20+ years of experience in the buildings and construction sector and significant expertise in public and governmental affairs. As Vice President of National Affairs for GBI, Jenna conducts outreach and education on green building issues with GBI’s growing list of national customers and stakeholders as well […]


GBI Senior Vice President Jenna Middaugh

Jenna Middaugh

As Chief Operating Officer, Jenna Middaugh oversees GBI’s day-to-day operations, leads its senior team, and supports the CEO in governance and strategic planning.  In 2023, Jenna became the association’s first-ever recipient of the Chair’s Award for Meritorious Service. The Award recognized her commitment to GBI’s mission and her successful leadership of a 5-year effort to […]


Sara Rademacher

As Senior Vice President of Programs & Operations, Sara Rademacher drives development of GBI’s ANSI Standards and delivery of its programs and services worldwide. She is a skilled relationship builder, fostering GBI’s continued growth in the US and Canada and its global expansion into Central & South America, Europe, the Middle East, and beyond. Sara […]


Halley Sizemore

Halley Sizemore

Halley comes to GBI with a robust background in advising, client services, andenvironmental project management. She graduated Cum Laude from the University of NorthCarolina Wilmington with a bachelor’s degree in environmental science. In her role as Manager of Client Services and Engagement, Halley is responsible for detailedproject management and administration of building certification projects. She […]


Annie Snyder

Annie Snyder

As Director of Education & Events, Annie works with the engagement team to develop and coordinate the Green Building Initiative’s calendar of events, including webinars, GBI hosted events and conferences. She oversees the end-to-end professional credential training development and serves as the lead production project manager for webinars and other online trainings. Annie also establishes […]


Micah Thomas

Micah Thomas

Micah Thomas is a valued content expert who advances development of GBI’s user-friendly assessment tools and rating systems. As the Compliance Specialist, Micah implements refinements and improvements following periodic updates to GBI’s Green Globes and federal Guiding Principles Compliance programs. Micah’s knowledge of green building approaches is highly valued and he shares his expertise through […]


Adam Wellen

In his role as Senior Director of Membership and Community, Adam supports GBI’s mission by engaging with GBI members and maintaining the platforms which enable them and their organizations to collaborate, share, and learn. Adam comes to GBI with a background in membership association management, customer service, and project management. He graduated with a bachelor’s […]


Lauren Wibe

As Associate Director of Sustainability Programs, Lauren drives sustainability programs forward through research and development. Prior to this role, Lauren served as a civil servant at NASA managing the sustainability and air quality programs for the Ames Research Center. She received her bachelor’s degree in civil engineering from Iowa State University in 2019.  She was […]


Tori Yattaw

As Vice President of Finance & Administration, Tori Yattaw is responsible for the overall leadership of finance and human resources. With 20 plus years of experience in public, private, and nonprofit corporations, she has deep roots in compliance and reporting and also understands the importance of relationship building in organizational success. Tori joined GBI in […]