G. Mark Thompson

Marshall Dennehey Warner Coleman & Goggin PC

$ $$$

Market Street 2000
Philadelphia 19103 PA US

As President and CEO of Marshall Dennehey Warner Coleman & Goggin, G. Mark Thompson is responsible for the day to day management and business strategy of the firm which consists of more than 500 attorneys operating out of 20 offices throughout Pennsylvania, New York, New Jersey, Ohio, Delaware and Florida.

He was elected to the position in December of 2017 after serving more than three years on the Executive Committee and a decade on the Board of Directors. He succeeds Tom Brophy who served in the role for 13 years.

Mark is joined by a management team comprised of two other senior executives, a Board of Directors, managing attorneys from every office, practice group supervisors, administrative directors and over 1000 employees who combine their talents to develop and implement the strategies and achieve the objectives of the firm and its clients.

Prior to moving to the firm’s Philadelphia headquarters in 2014, Mark also served as the regional managing attorney for its four Florida offices. A Florida native, it was there he built a reputation as a “go to” attorney advising Fortune 500 clients in high profile, high exposure and often crisis  situations.

During his career he has handled matters that attracted international media attention, are the subject of books, a documentary film and in one instance a hearing before the US House of Representatives in Washington DC, at which Mark represented one of the corporations testifying.

Mark has nearly 30 years experience in the legal profession, is rated AV Preeminent by Martindale Hubble, was recognized in 2006, 2007, 2013 and 2014 as a Florida Super Lawyer and in 2012 as one of Florida’s Legal Elite by Florida Trend magazine.

He is admitted to practice before the Florida Supreme Court, the United States Court of Appeals for the Eleventh Circuit and the United States District Court for the Middle District of Florida. He has tried cases in county, circuit, and federal courts and argued before the District Courts of Appeal. In 2012 he also became licensed to practice in Pennsylvania.

Prior to attending law school, Mark spent two years working as an insurance  adjuster. The experience continues to inform his understanding of the critical needs of claims professionals.


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Market Street 2000
Philadelphia 19103 PA US
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