Leslie Quick founded Simon Quick in 2004. He began his career in 1975 as the fourth employee of Quick and Reilly Inc., the first New York Stock Exchange (NYSE) member to offer discount stock brokerage to the investing public. During his 28 years with the firm, he served in many capacities. He was a key member of the management team that built the branch network, started and grew a major clearing firm, acquired and ran a major NASDAQ market making firm, made many acquisitions of NYSE specialist firms and built one of the industry’s first electronic internet trading platforms. Mr. Quick was the company liaison for Quick and Reilly in 1983 when it offered stock to the public and became listed on the NYSE. Mr. Quick completed his tenure as Chairman of Fleet Securities, Inc. in 2003 after Fleet Bank had acquired Quick and Reilly Group, Inc. in 1998.

Mr. Quick has served on many industry boards and committees, including the NYSE Hearing Board, the Board of Governors of the Chicago Stock Exchange, the Board of Directors of the Securities Industry Association and District Committee #10 of the NASD. Currently, Mr. Quick is Chairman of the board for Big Brothers Big Sisters of Hudson, Essex & Union Counties, he also serves on the boards of the Bishop's Finance Council for the Diocese of Metuchen and the Finance Council for Our Lady of Perpetual Help. He serves on the Investment Committees for the Diocese of Metuchen, St. Mary's Abbey/Delbarton, and the Franciscan Friars of the Holy Name Province. He also served as the Chairman of the Campaign for the Heart at Morristown Memorial Hospital and is a Trustee for the Foundation for Morristown Medical Center. Mr. Quick sits on the Order Friar Minors Finance Committee in Rome, Italy and St. Patrick's Cathedral in New York City. He served on the Board of Trustees for St. Bonaventure University for 25 years and was named a Trustee Emeritus in 2015.

Mr. Quick earned a BBA in Finance from St. Bonaventure University, which awarded him an honorary doctorate degree. He is a recipient of the Ellis Island Medal of Honor and the Flame of Charity's Man of the Year award. 

Les Quick and his wife Eileen reside in Bernardsville, New Jersey. They have four grown children.