Dr Ben Caldecott is the founding Director of the Oxford Sustainable Finance Group. He currently serves on the IPCC as Coordinating Lead Author for finance as part of Working Group III in the Seventh Assessment Report.

He has more than fifteen years of boardroom experience as a non-executive director across listed companies, leading financial institutions, public bodies, and charities. He is the only external member of the Board Sustainability Committee of DBS Bank, Southeast Asia’s largest bank, having joined in 2022. Since 2022 he has also been a Trustee of the RSPB, Europe’s largest conservation charity. The same year Ministers appointed him to the Adaptation Committee of the UK Climate Change Committee, the statutory body created under the Climate Change Act 2008.

He is Chair of the Advisory Group for the International Transition Plan Network (ITPN), a coalition of governments and regulators developing global norms for credible climate transition plans.

Marisa Drew was appointed Chief Sustainability Officer (CSO) for Standard Chartered Bank on 1 July 2022.

During her 39-year career in financial services, Marisa has held numerous leadership roles. She worked at Merrill Lynch in Investment Banking from 1992 until she joined Credit Suisse in 2003 to lead Leveraged Finance Origination and ultimately ran EMEA Investment Banking and Capital Markets. In 2017, Marisa moved into the field of sustainability as CEO of the Impact Advisory and Finance Group for Credit Suisse and ultimately served as the bank's inaugural CSO. 

Marisa currently serves on several boards and advisory panels, including as a NED of NASDAQ listed Liberty Global and AIM listed Agronomics as well as the ReOcean Fund advisory council backed by HSH Prince Albert's Monaco Foundation. She further serves as an advisory board member of the City of London Corporation and on the Monetary Authority of Singapore's Sustainable Finance Advisory Panel. Marisa’s external activities also include serving on High Level Climate and Oceans panels for the World Economic Forum and the UN and a charitable UK Advisory Board role for Room-to-Read.  Amongst other previous roles, Marisa has served on the advisory boards of the Aspen Institute UK, the Milken Institute Center for Strategic Philanthropy and the FCA Markets Practitioners Panel.

In 2025, Marisa was recognised by CNBC as one of 50 female Changemakers who materially influenced business globally in the prior year.  In 2024, she was recognised by Time Magazine as one of top Global Climate Leaders and by Futuri/o as one of the top European CSOs. In 2022, Marisa was recognised by Sustainability Magazine as one of the Top 10 CSOs of a Global Corporation. She has also been recognised by the BBC as one of the Most Powerful Women in Britain and by Fortune Magazine as one of the 50 Most Powerful Women in International Business.

Dr Arunabha Ghosh is an internationally recognised public policy expert, author, columnist, and institution builder. He is the founder-CEO of the Council on Energy, Environment and Water, one of the world’s 20 best climate think-tanks.

Arunabha advises governments, industry, civil society, and international organisations around the world. He currently serves on Government of India’s G20 Finance Track Advisory Group and advises the Sherpa Track for India’s G20 Presidency in 2022-23. In 2022, the UN Secretary-General appointed him to the High-level Expert Group on the Credibility and Accountability of Net-Zero Announcements by Non-State Actors.

Dr Ghosh is currently Vice-Chair of the UN Committee for Development Policy, and is a member of several international expert advisory groups: Global Commission on the Economics of Water; High-Level Group of Economists, constituted by the French president for the One Planet Lab; and the High-Level Consultative Group for the U.S. Department of State’s Energy Transition Accelerator.

Nili Gilbert, CFA, CAIA, is the Vice Chairwoman of Carbon Direct, a leader in scaling carbon management into a global industry through investment, science, and client advisory.

She is also Chair of the David Rockefeller Fund Investment Committee, Independent Board Director of Brookfield Asset Management, Senior Advisor at Boston Consulting Group, a member of the Clinton Global Initiative Advisory Council and the Harvard Salata Institute Advisory Board, and Chair of the Glasgow Financial Alliance for Net Zero’s Advisory Panel.

With a focus on global macroeconomic investment and forecasting, Nili previously Co-Founded Matarin Capital, growing the firm into one of the largest women-owned asset managers in the U.S. She Co-Chairs the Milken Institute Geo-Economics Leadership Network, serves on the World Economic Forum Global Future Council and the Bretton Woods Committee, and has served in committee chair and advisory roles as a permanent member of both the Council on Foreign Relations and the Economic Club of New York.

Nili is honored among Barron’s 100 Most Influential Women in U.S. Finance and TIME100 Climate. Her TED Talk has received nearly 2 million views. She has also been recognised as a World Economic Forum Young Global Leader, LinkedIn “TopVoice” in Finance, Entrepreneur of the Year by the National Association of Securities Professionals, Bloomberg BusinessWeek “One to Watch”, and awarded with a Bellagio Center Residency by the Rockefeller Foundation.

Nili received her BA, magna cum laude, from Harvard University, her MBA from Columbia Business School, where she was a Toigo Fellow, and she has completed programs in leadership and sustainability at Oxford and Stanford Universities.

Yiran serves as Director at the National Climate Change Secretariat (NCCS) under the Prime Minister’s Office, where she oversees the development and coordination of Singapore's climate mitigation and transition policies towards achieving net zero emissions.

Prior to NCCS, Yiran held various appointments at the Ministry of Trade and Industry, first as Deputy Director of the Strategic Planning unit to chart the direction of Singapore's economic development, then as Special Assistant to the Minister for Trade and Industry and Head of the New Energies Office driving Singapore's efforts in developing low-carbon energy sources.

Yiran also held appointments at the Ministry of Transport, supporting the transition of Singapore's public bus system from a privatised to a contracting model, and at the Ministry of Education working on policies relating to Singapore's public universities.

Yiran graduated from Northwestern University, and holds Master's degrees from Sciences Po and Fudan University.

Ho Tong Yen is the Chief Sustainability Officer and concurrently Managing Director and Head of Corporate Communications at Keppel Ltd. He is also the CEO of Keppel Care Foundation.

He was previously CEO of the Sino-Singapore Tianjin Eco-City Investment and Development Co Ltd in China and before that had held various positions in the Singapore Government, including Press Secretary to then Senior Minister Goh Chok Tong in the Prime Minister’s Office. He had also served as a diplomat at the Permanent Mission of Singapore to the United Nations in New York and the Singapore Trade Office in Taipei.

Tong Yen has a BSc (Economics) from the London School of Economics and Political Science and a Master in Public Management from the National University of Singapore.

Leslie has over 25 years of management experience across entrepreneurship, development, and philanthropy, including ten years developing and growing smallholder farmer businesses across Africa. As Laudes Foundation’s founding CEO, Leslie Johnston leads a team of 50 professionals to deliver – via its 300+ partners - on its mission to accelerate the transition to a green, fair and inclusive global economy. Previously, she headed C&A Foundation as its first Executive Director, repositioning it as a global catalyst to make fashion a force for good. She served as Executive Director of the Argidius Foundation, Deputy Director for TechnoServe in Africa and a management consultant for McKinsey & Company.

Leslie is also an accomplished board director, currently serving on the boards of Impact Europe (formerly the European Venture Philanthropy Association) as Chair, PUR, Fashion for Good BV, Built by Nature Stichting (as Vice Chair), Climate Resilience for All, EAT’s Advisory Board as well as University College London’s Institute for Innovation and Public Purpose Advisory Board. She is also a member of the World Economic Forum’s Global Future Council on Jobs and Frontier Technologies (and previously served on the Global Future Council on the Future of Philanthropy for Climate and Nature.)

Alvin holds concurrent roles at Temasek as a Director, Ecosperity, Sustainability Group and Director, Macro Strategy at Temasek. He leads Ecosperity, Temasek’s flagship sustainability thought leadership and advocacy platform in the former role and co-leads Europe and UK macro coverage in the latter.

Alvin focuses on macro and thematic investing across asset classes. Given Europe’s lead in climate focus, his role has evolved to incorporate climate change. In addition to conceptualizing and executing the firm’s first investment in a green transition-themed equity basket, Alvin co-leads climate scenarios coverage. He has also represented the firm at events including UN PRI in Person as a panelist on climate scenarios.

Prior to the Macro Strategy team, Alvin held corporate finance roles at Temasek and KPMG. He possesses a Bachelor’s Degree in Accountancy (First Class Honours) from Nanyang Technological University under the KPMG scholarship, is a CFA charterholder, and is currently reading a Masters in Sustainability Leadership at University of Cambridge.

Rebecca Mikula-Wright is the Chief Executive Officer of the Asia Investor Group on Climate Change (AIGCC) and Investor Group on Climate Change (IGCC). Rebecca has worked in climate change, sustainability and investment banking for over 20 years in Hong Kong, Europe and Australia.

Rebecca started her career in investment banking working in equity research, credit analysis, commodities and derivatives for groups such as Nomura Securities, BlackRock, Exxon Mobil and JPMorgan. Involvement in early corporate sustainability programs in many of her roles was the catalyst to move into the nascent sustainable finance and investment field in Asia where she led ASrIA (Assoc. for Sustainable and Responsible Investment in Asia) in Hong Kong.

Rebecca is a Board member of Wildlife Conservation International – the umbrella organisation of The Orangutan Project, International Elephant Project and the International Tiger Project, focused on animal and environmental conservation in Indonesia. She has a BA (Asian Studies/Commerce), Dip.Business Administration and speaks conversational Japanese, French and Czech.

Kyung-Ah is Chief Sustainability Officer at Temasek. She is responsible for advancing Temasek's sustainability strategy to climate resilient, net zero portfolio and to enable nature positive and inclusive growth. She also oversees the integration of ESG across Temasek's global portfolio, including new investments and engagements with portfolio companies to deliver long-term sustainable returns.

Kyung-Ah has over two decades of experience in the finance industry, the majority of which was dedicated to building and leading the global environmental markets initiatives at Goldman Sachs and advancing innovative finance solutions to address climate change. She was the head of Environmental Markets and Innovation and a member of the Sustainable Finance Steering Group. She joined Goldman Sachs in Mergers & Acquisitions and worked in Investment Banking in New York and Hong Kong. Prior to Goldman Sachs, she was at McKinsey in South Korea and South Africa.

Kyung-Ah has an MBA from Harvard Business School and a BA from Yonsei University in Korea. She serves on the board of ClimateWorks Foundation and is a non-executive board director of Clifford Capital Holdings. She is a Fellow of the 2023 class of the Finance Leaders Fellowship and a member of the Aspen Global Leadership Network.

In 2024, Naoki Shigetake was appointed as Chief Operating Officer of GX Acceleration Agency (GXA). He also serves as a member of the Japanese government’s GX Execution Committee chaired by former Prime Minister Kishida, contributing to national policy development for decarbonisation and economic growth.

Shigetake began his career at Mitsui & Co., Ltd. in 1982 after graduating from Waseda University with a degree in Political Science and Economics. In 1992, he earned his MBA from the University of Chicago Graduate School of Business and joined Boston Consulting Group (BCG), where he held various leadership roles. He served as Managing Director and Senior Partner until June 2024.

With more than four decades of experience in global business and strategy, Shigetake brings deep expertise to his current role, where he leads efforts to accelerate Japan’s green transformation and foster collaboration between industry and government.