Founded in 1989 by Gary Barnett, the company’s portfolio exceeds 20 million square feet.

[3] According to a survey conducted by The Real Deal, Extell is the most active builder in Manhattan, with at least 11 active projects totalling over five million square feet.

[2][4] Extell is known for kickstarting the "Billionaires' Row" towers below Central Park, and for constructing a number of different buildings on the Upper East Side, in Manhattan.

[5] In 2013, Extell came under fire in the New York Post and Gawker Media for building separate entrances for rich tenants and poor tenants in one or more of their Manhattan high-rise buildings.

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