Edward Perry "Ed" Bass (born ) is a businessman, financier, philanthropist, and environmentalist who lives in Fort Worth, Texas. He financed the Biosphere 2 project, an artificial closed ecological system, which was built between 1987 and 1991. He is the chairman of Fine Line, an investment and venture-capital management firm in Fort Worth, and president of the board of directors of the Sid W. Richardson Foundation, a philanthropic organization. He was listed as #239 on the Forbes 400 list of wealthiest Americans in 2012, with an estimated net worth of $2 billion.