Thomas M. O’Brien is President and Chief Executive Officer of State Bank of Long Island and State Bancorp, Inc.  Prior to joining State Bank, O’Brien was President and Chief Executive Officer of Atlantic Bank of New York until its sale in 2006.

O’Brien began his banking career in 1977 at North Side Savings Bank in New York City, where he was appointed CEO at age 33. In 2000, he joined Atlantic Bank of New York as President and CEO and member of its Board of Directors.

O’Brien is an Independent Trustee for Prudential Insurance Company’s $65 billion insurance mutual fund complex, a Trustee for Catholic Healthcare System of New York and the Catholic Healthcare Foundation, Inc., and a Trustee for Niagara University.  He is presently the 1st Vice President of the Society of the Friendly Sons of Saint Patrick in New York, and also founded the Galway Bay Foundation, Inc.

O’Brien holds a B.A. from Niagara University, an M.B.A. from Iona College. His father’s Irish heritage lies in Clare and his mother’s in Galway. O’Brien is married with three children.