BOARD OF DIRECTORS
Peter Bond Vice Chair
Peter Bond is a Founder and Co-Managing Partner at Milestone, a New York–based strategic management consultancy. He brings more than 25 years of financial services experience advising senior leadership teams across the investment banking, asset management, fintech, private equity and non-profit sectors on strategy, mergers and integrations, and target operating model transformation. Peter holds Bachelor of Arts degrees in International Relations and Environmental Studies from the University of Pennsylvania.
Wilson D’Souza
Board Member
Wilson D’Souza is a strategic executive leader with extensive experience in technology, product development, and business operations, primarily within the financial services industry. He is the Managing Partner of Reverb Advisors, a Boston-based venture firm focused on early-stage data, AI, and cybersecurity companies. Wilson co-founded Akoya and previously held senior leadership roles at Fidelity Investments, MIT, Merrill Lynch, and PepsiCo, among others.
Michelle Godette
Board Member
Michelle Godette is a senior international development leader and executive attorney with more than 28 years of experience leading programs across Africa, Latin America, Asia, and the Middle East. A retired Senior Foreign Service Officer, she served as a USAID Mission Director and Presidential appointee serving as Peace Corps Regional Director for Africa. She currently serves as Deputy General Counsel for the District of Columbia Department of Buildings. Michelle holds a Bachelor of Arts in French/Pre-Law from Howard University, studied at the University of Caen in France, and earned a Juris Doctor from American University.
Langdon Greenhalgh
President and Founder
Langdon Greenhalgh is the President and Founder of GER³ and CEO of Global Emergency Group. A disaster management expert, he has led humanitarian operations worldwide since 1999, including responses to major natural disasters and complex crises. Langdon holds a Bachelor’s degree from the University of Virginia and a Master’s in Public Policy from Harvard University’s Kennedy School.
Daniel Osorio
Board Member
Daniel Osorio is the Founder and President of Andean Capital Advisors and a seasoned investor with deep experience in emerging markets. He began his career at Salomon Brothers and later served as a Director in Citi’s Emerging Market Fixed Income division. Daniel also serves on the board of the Ubuntu Pathways and brings extensive regional expertise across Latin America.
Team Members
John Stephens
Chief Executive Officer
John Stephens is the Chief Executive Officer of GER³. John brings more than two decades of leadership experience across emergency response, recovery, and long-term development, with a focus on building organizations that deliver practical, community-centered impact in complex environments. He previously served in senior leadership roles at Mercy Corps across Asia, Africa, and the Middle East, led grantmaking for international nonprofits at a philanthropic foundation, and most recently as Chief Executive Officer of The BOMA Project, where he led a period of significant organizational growth and program scale. John has worked extensively with local partners, donors, and governments to support communities affected by disaster and conflict.
Margaret Howard Director of Strategy
Jack Sell Director of Operations
Josephine Fox Manager, Talent Management
Margaret has been part of GER3’s team since its inception in 2017, supporting GER3’s first project in response to Hurricane Matthew in Haiti. With significant program management, coordination, and administrative experience, Margaret has since deployed on a number of GER3’s global response and recovery operations, leading project teams both at the field and at HQ.
In addition to her work with GER3, Margaret has worked with GER3’s sister organization, Global Emergency Group, substantiating her experience in humanitarian operations and supporting a range of humanitarian consulting projects with the American Red Cross, WHO, the Caribbean Public Health Agency, USAID/BHA, UNICEF, and UNHCR. She received her Bachelor of Arts degree at Davidson College where she completed a major in French and Francophone Studies with a minor in Economics.
Jack is Operations Manager at GER3. He is currently based in Kyiv, leading GER3's response to the war in Ukraine. Jack joined the team in August of 2021, deploying to St. Vincent and the Grenadines to lead GER3’s volcano response and recovery projects on the island. Subsequently, Jack managed GER3's Hurricane Dorian reconstruction project in The Bahamas. He is now an integral part of managing GER3's operations both at HQ and in the field.
Jack received a Bachelor of Arts degree in Public Policy and Leadership from the Frank Batten School of Leadership and Public Policy and a Bachelor of Arts degree in Foreign Affairs from the College of Arts and Sciences at the University of Virginia.
With over 30 years of experience in diverse sectors of international humanitarian emergency and development, Jo Fox has significant experience working with various governmental, international, and non-governmental clients on humanitarian projects related to HR and surge management, evaluations and reviews, strategic planning, and training facilitation. Working previously within the Red Cross/Red Crescent Movement and International NGO’s such as Oxfam and Greenpeace at both the field and HQ levels, Jo has worked in emergency response delivery and development, with a focus on HR and capacity building, operational and organizational knowledge management, and media and campaigning including policy, advocacy and strategic mobilization.
Jo grew up in the UK and has a BA Hons., MA in Archaeology and Anthropology from the University of Cambridge.
Peter Warker
Safety & Security Coordinator
Cabell Crowder
Marketing
Coordinator
Pete is the Safety & Security Coordinator at GER3. He joined the team in July of 2022. Pete served 36 years in the U.S. military and seven years as an International Safety and Security Advisor for USAID’s Bureau of Humanitarian Assistance. He has led organizations in size from 500 to 3,000 personnel in deployed environments. Pete has worked in 30 countries in combat, training, and humanitarian operations. Pete’s first response for GER3 was as the Country Director for a Winterization Project in Ukraine.
In addition to his work at GER3, Pete works with GER3’s sister organization Global Emergency Group as a Training Facilitator.
Pete has a Bachelor of Science degree from the U.S. Naval Academy, a Master of Science in Management from University of Saint Mary in Leavenworth KS, and Master of Strategic Studies from the U.S. Army War College.
Cabell is GER3’s Marketing Coordinator, having joined the team in 2023 as an operations intern. Cabell is pursuing a double major in Foreign Affairs and Economics and the University of Virginia’s College of Arts and Sciences. She also recently completed an international relations program at the London School of Economics.
Nickles Saintil
Project Manager, The Bahamas
Based in The Bahamas, Nick has supported a number of GER3's relief and recovery programs in response to Hurricane Dorian. He is currently leading GER3's home rehabilitation project in Abaco, focusing on supporting most vulnerable homeowners and building back better.
Nick has worked in the construction field for over five years and has strong experience in project planning, implementation and maintenance throughout The Bahamas. With a diverse skillset, he has held numerous leadership positions throughout the construction and building field, and more recently in the NGO sector where he has led a variety of programs focused on the reconstruction and recovery efforts for affected families in Abaco after Hurricane Dorian.
Nick is a licensed builder throughout the Commonwealth of The Bahamas and studied economics and the University of The Bahamas.
Calley Bilgram Program Lead, Los Angeles
Hanna Tsvihun
Local Project Director, Ukraine
Anna Grace Calhoun
Ukraine Representative
Calley Bilgram is Program Lead for Los Angeles at GER³, bringing extensive experience in disaster response and community resilience. She has guided complex, community-centered programs in crisis-affected regions, with a focus on strategy, partnerships, and operational delivery. Her background spans international development, capacity building, and long-term recovery. Calley holds an MSc in Transition Management and dual bachelor’s degrees in Business Management and German.
Anna is GER3's Local Project Director in Ukraine. She joined the GER3 team in 2022 as part of GER3's relief and recovery work in Ukraine. Based in Kyiv, Anna represents GER3 and supports the development of local partnerships and overall coordination of GER3's local recovery programming. Anna completed a Master’s Degree in International Law from the Taras Shevchenko National University of Kyiv.
Anna Grace is based in Kyiv as GER3's Ukraine Representative, providing leadership for its range of relief and recovery work. Previously, she served as a Field Coordinator for Global Emergency Group on the Bureau for Humanitarian Assistance Support Contract, where she was responsible for project management, monitoring and evaluation and operational support to field monitoring teams in Ukraine and across Africa. She has also worked on human rights litigation and research in South Africa and taught data science and software engineering courses to college students. Anna Grace holds bachelor’s degrees in Computer Science and Leadership & Public Policy from the University of Virginia.
Dmytro Rudnichenko
Construction Supervisor, Ukraine
Olha Makarenko
Program Officer, Ukraine
Nataliia Alfimova
Monitoring and Evaluation Specialist, Ukraine
Veronika Shaposhnyk
Construction Supervisor, Ukraine
Olha Yudina
Kherson Field Assistant, Ukraine
Dmytro Rudnichenko joined GER3 team in 2022 as Construction Supervisor. His main responsibilities are project planning and construction supervision for the rehabilitation and reconstruction of households and social facilities in Ukraine.
Dmytro graduated from Kyiv National University of Construction and Architecture and has 6 years experience as construction manager.
Olha joined the GER3 team in 2023 as Program Officer in Ukraine, focusing primarily on the winterization program in particular Chernihiv, Sumy, Kyiv oblasts.
She has had more than 10 years of experience in the field of jurisprudence and significant work experience in the sphere of urban development and architecture.
In 2012, Olha received a Master's degree in law enforcement and law at the National University of the State Tax Service of Ukraine in Kyiv region.
Nataliia joined GER3 in 2024 as a Monitoring and Evaluation Specialist. In 2022, she began to work in the humanitarian sphere after seven years in agribusiness. Nataliia says this switch was driven by the desire to help others at the beginning of the Ukraine war, as she has first hand experience as an IDP. She joined GER3 for its flexibility, young team, and variety of projects.
Nataliia graduated from Zaporizhzhia National University with accounting and auditing degrees.
Veronika is a Construction Specialist for GER3 and joined the company in April, 2024. Veronika is responsible for project planning and construction supervision for the rehabilitation and reconstruction of Ukraine. She has twelve years of construction experience.
Veronika graduated from Dnipro Institute of Infrastructure and Transport in 2012.
Olha joined GER3 in June, 2024 as a Field Assistant in the Kherson region. She has over three years of experience in HR and personal management, having worked ten years in the overall sector. Russia’s invasion of Ukraine drove Olha to turn to humanitarian work to help aid her fellow countrymen.
Olha received her bachelor’s degrees from Kharkiv National University of Radio Electronics.
