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Senior Director & Global Head of APCO Impact

Denielle Sachs is an impact strategist with over two decades of experience building organizations, boards and coalitions from the ground up, designing culture and thought leadership strategies that ignite movements, and leading special projects for Fortune 500 businesses. She is a builder of initiatives, businesses and coalitions, applying user-centered design, systems analyses and futures forecasting to ensure stress-tested and durable strategies guided by all stakeholders. She serves as a senior director and global head of APCO Impact, an advisory group that sits within APCO and supports clients across business, government and philanthropy.

Denielle was the founder and global head of The Tembo Group, a leading social advisory firm, which she established in 2015 and was acquired by APCO in 2020. Denielle, previously spent seven years as the director of social impact for McKinsey & Company, where she led the firm’s first global corporate citizenship strategy and helped build what is now and its first program, focused on youth unemployment.

Earlier in her career, Denielle served as an advance lead at The White House, worked in a number of social sector organizations and as a corporate social responsibility, policy and communications expert at several premier agencies, both in the United States and abroad, including APCO from 2006-2008.

She currently sits on several boards and advisory councils, including for the Resolution Project, Breakout Foundation and Nexus Global, which is the largest network of next-gen philanthropists.

Denielle holds a master’s degree in international development from the School of Oriental and African Studies and a bachelor’s degree in international politics from New York University.