D aniel Feffer is a Brazilian billionaire and a member of the family that controls Suzano, one of the world's largest pulp and paper producers. He is the grandson of the company's founder, Leon Feffer, who started the business in 1924. Daniel, along with his brothers David, Jorge, and Ruben, represents the third generation of the family to be involved in the company.

Suzano is a global leader in the production of eucalyptus pulp, a key raw material for paper and tissue products. Daniel has served on the company's board of directors for many years, helping to guide its strategic direction. He has been a key figure in the company's major strategic moves, including its massive merger with its domestic rival Fibria, which created the undisputed global leader in hardwood pulp. His wealth is derived from his family's controlling stake in this powerful and publicly traded commodities giant.