John Mennel

Government and Public Services Strategy & Analytics Leader

Managing Director | Consulting

John Mennel

1919 North Lynn Street

Suite 1500



United States


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John is a Managing Director for Deloitte's Strategy & Analytics practice and is responsible for Deloitte’s relationship with the United States Department of the Interior (DOI) as the Lead Client Service Partner (LCSP). He is also a leader in Deloitte’s Social Impact offering and works with commercial clients in sectors including Life Sciences, Energy & Resources, Technology and others to develop strategies for corporate purpose, corporate social responsibility (CSR), sustainability and others. John started his career with Deloitte in the CIS (Russia) member firm and has also held senior positions in technology and venture capital. His clients have over the years have included International Donor Organizations, major philanthropic foundations and foreign governments. Mr. Mennel holds a Masters of Business Administration (MBA) from the Harvard Business School and a BA from Brown University. He grew up in Dallas, Texas, has lived extensively overseas, and has lived in the Washington, DC suburbs for the past decade.

John Mennel