Directory
The SEAM ecosystem
Accredited professionals, certified buildings, and verified activities — the growing network advancing social equity in the built environment.
Gia T Tejeda
Hetvi Vora
BranchPattern
Pittsburgh, PA
Atlas Turner
O'Brien 360
Seattle, WA
Valerie Oliver
GB Shades
Rockville, MD
Tsz Wai Edward Wan
JLL
Hong Kong
Jayne Lee
Partner Energy
Sacramento, CA
Monica Wentz
Turner Construction Company
Tebogo "Tebby" Modisagape
Val Interiors
Shane Gring
Chief Operating Officer
Shane builds the operations behind certifications. As Chief Operating Officer at SEAM, he leads the systems, infrastructure, and execution that turn the SEAM Standard into a scalable global program. He helps mission-driven organizations translate ambitious standards into the operational backbone that makes them real — from credentialing workflows to partner ecosystems. His experience spans more than a decade in the certification and membership space, including roles with the U.S. Green Building Council and the International WELL Building Institute.
Leadership
Jennifer Webb
Verdani Partners
Los Angeles, CA
Max Kriegsfeld
JLL (Vanguard account)
Phoenix, AZ
Rebecca Ballard
Rooted Communities
Washington, DC
Yun Loy Yap
JLL
Susan Glass
JLL
Rainey Shane
CEO / Co-Founder / Board Chair
Rainey Shane is Chief Executive Officer and Executive Director of SEAM, Inc., a nonprofit organization that specializes in embedding social equity in commercial real estate through the Social Equity Assessment Method (SEAM) Standard and certification framework. As co-founder, she played a central role in developing the standard itself — a framework that addresses the social impacts of commercial real estate projects, much like LEED addresses climate change, with the aim of minimizing negative impacts while maximizing opportunities for positive, sustainable outcomes that contribute to long-term systemic change in diversity, equity, inclusion, human rights, and prosperity. Before launching SEAM as a standalone nonprofit, Rainey served as Director of Social Sustainability for North America at JLL, where she led the firm's social sustainability consulting services and aligned commercial real estate projects with clients' social sustainability goals. Prior to that, she established and grew the Adaptive Reuse practice for JLL's Project and Development Services in the Southeast Central region — a foundation that continues to shape her approach to social impact work, given how closely the two disciplines connect. Rainey brings 15+ years of commercial real estate experience, predominantly in adaptive reuse, to her leadership of SEAM. Her work has earned recognition through ULI Atlanta's Women's Leadership Initiative "The Leaders" cohort, an award based on career achievements, community outreach, and mentorship within the industry, and she was recently selected to the 2026 class of the Georgia Tech Alumni Association Board of Trustees. Beyond her professional work, Rainey is passionate about anti-trafficking and combatting modern slavery, and serves as a Rescue Team Operator on child trafficking and forced labor rescue missions — lived experience that gives her perspective on social equity an unusual depth and urgency.
Leadership
Nancy Larson
JLL
Atlanta, GA
Wendy Cooper
Peach Rooted Strategies
Christian Huynh
JLL
Hong Kong
Becca Timms
Jamestown
Atlanta, GA
Melina Gorrebeeck
SEAM Europe Regional Director
Melina builds the science behind better places. As CEO of LAMMP, she helps HR professionals, architects, developers, investors, and governments design buildings and communities that go beyond functionality — working at the intersection of psychology, sociology, neuroscience, and the built environment to create spaces that genuinely enhance well-being, resilience, and social cohesion. Her mission is to redefine the value of real estate not just in financial terms, but through its measurable social impact. As Regional Director for SEAM Europe, she leads the expansion of SEAM Certification™ and the SEAM AP credential across the European market.
Leadership
Jennifer Beyer
IMEG Corp
Seattle, WA
Joel Ann Todd
Health Product Declaration Collaborative
Lindsay Brown
Swinerton
Chris Pirschel
Chief Marketing Officer
Chris builds the brands behind certifications. As Chief Marketing Officer at SEAM, he leads marketing, communications, and growth — driving awareness and adoption of SEAM Certification™ and the SEAM AP credential worldwide. He helps mission-driven organizations sharpen their voice, grow their audiences, and turn complex standards into clear, compelling stories. His experience spans more than a decade in the certification and membership space, including roles with the International WELL Building Institute and the Oncology Nursing Society.
Leadership
Curtis Stewart
UL Solutions
Chicago, IL
Lina Daniel
JLL
Taidgh McClory
THM Advisors
Boston, MA
Stephen Rich
Sellen Construction
Eva Lo
JLL
Hong Kong
Alexandra Bull
JLL
New York, NY
Phuong Tran
JLL
Tim Wedemeyer
JLL
Alex Demestihas
Board Member
Alex Demestihas is co-founder of SEAM, the world's first social impact certification, accreditation, and membership program for commercial real estate. Alongside fellow co-founder Rainey Shane, Alex launched SEAM as a 501(c)(3) nonprofit to provide a roadmap for developers, property owners, and occupiers to maximize positive social impact through the built environment — positioning the standard as a complement to green building programs like LEED, with a framework that aligns to the UN Sustainable Development Goals. Alex brings more than 15 years of commercial real estate experience spanning multi-family and large corporate headquarters to SEAM's mission. He recently completed a decade-long tenure as Managing Director for JLL's Project and Development Services group in Atlanta, where he led teams responsible for constructing multiple Fortune 500 headquarters that have reshaped the Atlanta skyline — including projects for Norfolk Southern, Invesco, Inspire Brands, NCR, and Warner Media. He has since moved on to North Avenue Partners, continuing his focus on strategy and execution for complex real estate projects. Earlier in his career, Alex served as a Construction Manager at Jamestown, LP, providing construction oversight on capital improvement and tenant improvement projects, and previously held a project management role at CBRE supporting CBRE Global Investors' Atlanta portfolio. A longtime civic leader in Atlanta's real estate community, Alex is a graduate and former Co-Chair of the Urban Land Institute's Center for Leadership and a member of ULI. He holds a Bachelor of Science in Building Construction from the Georgia Institute of Technology and an MBA from Georgia State University's J. Mack Robinson College of Business, and is a LEED Green Associate. He was named to Real Estate Forum's "50 Under 40" in 2018. Alex is passionate about causes involving human rights and focuses his volunteer efforts on immigration rights.
Leadership
Karin Miller
Brightworks Sustainability
New York, NY
Rachael Guerrero
Swinerton
Atlanta, GA
Susan Kaplan
HLW
New York, NY
Gerlinda Grimes
Jamestown
Easthampton, MA
Lonna Babu
Ayers Saint Gross
Baltimore, MD
Jaida Holbrook
JL Sustainability
Bruce Thomson
Board Member
Global lead at S&P Global Ratings for integrating social factors, risks, and insights into sustainable finance analyses, credit ratings, and research, with prior experience advising the world's most recognizable brands on social performance and supply chain strategy and partnering with asset managers overseeing $150B+ AuM on ESG due diligence and investment stewardship.
Leadership
Christian Mayer Garcia
JLL
Chicago, IL
Anna Fredlander
Hoare Lea
Edinburgh, UK
Terena Campagna
Chief Experience Officer
CXO at SEAM, leading the experience of accredited professionals worldwide. Co-led the development and launch of the SEAM AP credential and continues to coach the global AP community in applying the standard to strengthen community outcomes and long-term asset value.
Leadership
Patricia Raicht
CBRE
Become a SEAM AP
Join the growing network of practitioners leading social equity certification in the built environment.
Learn about the AP Credential