Advisory Board New York

Ibrahim is a bright, playful spirit who authentically reflects and acts on bold questions. His artful blending of idealism and spiritual commitment with pragmatic application has led him into government, public administration, parenthood, and media. His unique voice has helped elevate the environmental vision of Islam, the spiritual opportunity of parenting, and the cultural and political side of sports and the ethical imperative when considering decisions about how we manage land, waters, and open space. 

Mr. Daykin serves as President and Partner of Magnitude Capital, an alternative investment manager based in New York. He joined Magnitude in 2009 having previously worked at Goldman, Sachs & Co. in New York and London. He began his career in London with the D. E. Shaw group. 

Craig Dessen is currently Managing Director at Roundtable Investment Partners, a private investment partnership founded in 2006 by a group of successful and experienced entrepreneurs, executives and investors. Previously, he served as Vice President of Post Rock Advisors, and as a Financial Analyst for Arrow Electronics, Inc., an international technology equipment and services company.

Jennifer Geiling is a senior executive with two decades of experience leading organizations, teams, and initiatives in public, nonprofit and private sectors. She currently serves as Deputy Director of Procurement Operations, Policy and Partnership with The City of New York, Mayor's Office of Contract Services.  

Vanessa Barboni Hallik is the founder and CEO of Another Tomorrow, an end-to-end sustainable apparel company and platform for discovery and action committed to transparency and a circular economy. She is also an investor in early-stage companies with strong ESG commitments and potential to catalyze positive change. Vanessa serves on the Advisory Boards for Harvard's Carr Center for Human Rights Policy and the Trust for Public Land. 

Steven G. Horowitz served as Chief Legal and Risk Officer at Open Space Institute, based in New York through July 2020. At OSI he focused on land conservation, environmental mitigation, climate change and a wide range of resiliency activities. He retired in 2018 after many years as a partner of Cleary Gottlieb where he regularly represented U.S. and international commercial and investment banks, foreign and domestic institutional investors, property owners and corporations in their real estate matters.

Sarah Jackson is a Principal of Spinnaker Ventures.

Jennifer Jones works at The Rockefeller University (a biomedical research institute in New York City) as Director of Creative Content and Grants Management in the Development Office. This unwieldy and wholly accurate professional title means that she spearheads the creation of original content that helps to tell research stories to an external audience. She also helps manage grants to the university’s scientists. Jennifer works in a multitude of forms and on a variety of platforms, including print, film, and web.

Vincent Lee, PE, LEED AP, ENV SP is an Associate Principal in Arup with over 20 years of experience in sustainable development, green infrastructure and integrated water resource management. His civil and environmental engineering background has enabled him to implement water-resilient cities and communities across the world. He has been instrumental in developing integrated water management plans for new cities in the Asia and the Middle East.

Elizabeth (Beth) A. Maher is a retired Learning Disabilities Specialist who is now focused fundraising for a number of non-profit organizations.

Philip G. Meeks is Executive Vice President and President of Spectrum Business Enterprise at Charter Communications. In his role, Mr. Meeks oversees all commercial operations, marketing and strategy and sales for Spectrum Business Enterprise, which provides enterprise-grade Internet, networking, voice, commercial video and managed services to Charter’s largest customers.

Jeanne is the former Commissioner of the NYC Department of Youth and Community Development with significant experience working at the intersection of government, nonprofits and the private sector. As Group Leader at Capalino, Jeanne provides an array of strategic advisory services to help some of the leading non-profits in New York achieve long-term success and sustainability.

Kristen Owen, CFA is an Executive Director at Oppenheimer & Co. serving on the Sustainable Growth and Resource Optimization equity research platform where she focuses on understanding and communicating the financial benefits and investment opportunities in technologies that enable more sustainable agriculture, transportation, and energy industries. As transplant to New York City from Cleveland, Ohio, Kristen is passionate about conservation and democratizing green space, particularly in urban areas. In the city you can find her walking along the Hudson River Greenway, enjoying the orchid collection at the New York Botanical Gardens, or checking out the new stock at the Lego store.

Miles Pincus is an entrepreneur, restaurateur, and historic vessel conservationist. He is a co-founder of signature restaurants Grand Banks, Pilot, and Island Oyster in New York City; and Seaworthy in New Orleans (in partnership with Ace Hotel). Miles also operates Pier 25 Marina, a public marina in lower Manhattan, and Heritage Marine Works, a historic ship restoration facility in Brooklyn.

David Poppe is the president of Giverny Capital Asset Management, LLC. Previously, he spent 20 years at the investment firm Ruane, Cunniff & Goldfarb, LLC. From 2006 until his retirement at the end of 2018, he was a co-manager and director of the firm’s flagship Sequoia Fund. From 2016 to 2018, he served as the firm’s CEO. In 2011, he and a partner were named domestic equity managers of the year by the mutual fund rating service Morningstar. Before joining Ruane in 1999, David had a 12-year career in financial journalism. He’s a former Scoutmaster of his son’s Boy Scout troop and an enthusiastic skier and hiker. He and his wife Cherie Henderson are longtime supporters of TPL’s New York City Playgrounds program. He holds a BA from Columbia University.

Mr. David B. Ragins serves as a Managing Director of Clarion Capital Partners, LLC. He joined the Clarion Capital Partners in 2006. Previously, Mr. Ragins served as an Associate at Seaport Capital Partners from February 2001 to 2006 and was involved in the sourcing and due diligence of new portfolio company investments.

Lisa Sarajian is a retired finance professional, having worked most recently with S & P Global, where she oversaw a credit research team focused on public and private real estate companies. She is an investor, finance consultant and active volunteer with several local, not-for-profit organizations. She is currently pursuing French language studies and course work in gardening and horticulture through the New York Botanical Gardens. Originally from Atlanta, with continued strong ties there, Lisa enjoys living on the verdant and colorful Upper West Side of Manhattan. 

After graduating from Princeton University with a BA in History, Sharon worked in Seoul, Korea at The Korea Herald as a Princeton in Asia Fellow. She then earned an MSt in Modern History from Oxford University and a JD from Georgetown University Law Center. After law school, she served as a law clerk to the Honorable Denny Chin of the United States District Court for the Southern District of New York. She worked as an associate at Simpson Thacher & Bartlett, and served as an Assistant United States Attorney in the United States Attorney's Office for the Eastern District of NY. Sharon is currently the Judicial Assistant to Hon. Denny Chin at the United States Court of Appeals for the Second Circuit. 

Jonathan Wiesner is currently the CEO at the Garrison Institute. Founded in 2003, the Garrison Institute is a non-profit organization which applies the transformative power of contemplation to today’s pressing social and environmental concerns, helping build a more compassionate, resilient future. Working collaboratively with experts in diverse fields, the Institute develops and hosts both in person and virtual programs, produces research and publications, and provides a hub for ongoing learning networks. It has established key initiatives in the fields of ecology, caregiving, education, and organizational leadership.