Meet The Team

Executive Director, SIPA
Hamna Khan
Hamna is an MIA candidate at Columbia’s School of International Affairs, graduating in the class of 2024. Prior to SIPA, Hamna worked at the U.S. Department of Defense as a Technology and National Security Fellow where she assisted the Joint Personnel Recovery Agency with the Department of Defense’s emergency distress technologies architecture. Preceding this fellowship, Hamna worked at Northrop Grumman for three years as an electrical engineer. Hamna holds a Bachelor of Science degree in Electrical Engineering from the University of California, San Diego.

Co-Director, SIPA
Drew Tomashefsky
Drew is an MPA candidate at the Columbia School of International and Public Affairs, graduating in the class of 2024. Prior to SIPA, he worked for The Home Depot’s corporate office where he managed the company’s alternate and renewable energy portfolio. Drew also has experience in public and private sector politics through internships in the California State Assembly, U.S. Congress, and for The Home Depot’s Government Relations team. He holds a bachelor's degree with honors in Political Science and Public Policy from the University of California, Berkeley.

Co-Director, CBS
Anika Islam
Anika Islam is an MBA candidate at Columbia Business School and an incoming Investment Banking Associate at Morgan Stanley. Previously, she worked in Regulatory Relations at Morgan Stanley, where she managed a variety of regulatory examinations, including those from the SEC, FINRA, CFTC, CME, and state examiners. Anika graduated Summa Cum Laude with a B.A. in Political Science from The City College of New York.

Co-Director, CBS
Tim Lee
Tim is a dual MBA + MIA candidate at Columbia Business School and SIPA in the class of 2023. He has worked in energy as a Summer Associate at Fluence and a Research Assistant for the investment team at Copenhagen Infrastructure Partners. Prior to his studies, Tim worked in private credit at MidCap Financial, investment banking at Kimberlite Group, and real estate at Civic Builders. Tim graduated from the College of William & Mary with a Bachelor of Business Administration, having double-majored in Finance and Government.

Co-Director, CBS
Ugo Nwadiani
Ugo is an MBA candidate at Columbia Business School and a member of the class of 2024. Prior to CBS, he worked across McKinsey & Company's Africa office for three years before joining SEforALL/United Nations in New York where he supported governments on energy policy and capital raising. He also worked with Three Cairns Group as an Investment Associate prior to Columbia, supporting the set up of Allied Climate Partners. Ugo holds a Bachelor of Art degree in Economics and Information Studies from the University of Ghana.

Co-Director, CBS
Ellen Williams
Ellen is an MBA candidate at Columbia Business School, graduating in the class of 2023. Prior to her studies at CBS, Ellen worked as a consultant at Boston Consulting Group, primarily within the firm's Infrastructure, Transport and Cities and Public Sector practices. She has also worked as an energy and infrastructure lawyer at King & Wood Mallesons, the largest global law firm in Asia, and as a policy adviser to an Australian state government. Ellen holds a Bachelor of Arts (Politics) and Bachelor of Laws from Monash University.

Co-Director, CBS
Matthew Shulman
Matthew is an MBA candidate at Columbia Business School, graduating in the class of 2024. Matthew will be interning at JPMorgan Chase & Co in the summer of 2023. Prior to joining CBS, Matthew worked at the Citco Group Limited for three years as a senior analyst and supervisor. Matthew graduated from the
University of Guelph in 2017 with a Bachelor of Commerce.