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Login
Explore
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- LittleSis
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Features
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This year LittleSis turned 15! Consider becoming a LittleSustainer to help unsure that our movements have the research and tools
we need to win for the long haul. Any amount is greatly appreciated. Donate today.

Marc De Leeuw

Antitrust lawyer, Sullivan & Cromwell

Marc De Leeuw joined Sullivan & Cromwell in 1994 and has been a partner since 2001. His litigation practice includes representing clients in a variety of areas, including intellectual property, securities, antitrust, real estate, contract, bankruptcy and many other commercial matters. Mr. De Leeuw has represented clients before arbitration tribunals, the International Trade Commission, New York and New Jersey state trial and appellate courts, numerous federal district courts and Courts of Appeals and the U.S. Supreme Court. He has participated in trials and arbitration hearings in intellectual property, antitrust, tort and insurance cases. 1992, Columbia Law School, J.D. 1989, University of Rochester, B.S.

Relationships Interlocks Giving Data

Business Positions

Sullivan & Cromwell LLP Sullivan & Cromwell provides legal advice and representation to clients around the world.

• Partner ('94→?)

Donations

Eric Dinallo Former New York State insurance superintendent

• 1 contribution · 250 USD (Aug 13 '10)

Alan Hevesi NY State Assemblyman and Comptroller ('03-'06), banned from public office after pension scandal

• 1 contribution · 200 USD (Oct 7 '02)

Cyrus Vance Jr DA of New York County

• 1 contribution · 100 USD (Feb 27 '13)

Federal Election Campaign Contributions

1 / 5

Hillary Victory Fund

• 2 contributions · 20,000 USD (Jun 20 '16)

Democratic National Committee Governing body for the U.S. Democratic Party

• 2 contributions · 10,250 USD (Jun 20 '16→Feb 28 '17)

Barack Obama 44th President of the United States

• 9 contributions · 5,300 USD (Nov 27 '07→Aug 31 '12)

Hillary Clinton US Secretary of State & NY Senator; 2016 Democratic Presidential candidate

• 2 contributions · 3,700 USD (Aug 9 '06→Jun 23 '15)

Debbie Stabenow US Senator and Representative from Michigan (2001-present)

• 2 contributions · 2,000 USD (Mar 16 '17)

Kirsten Gillibrand US Senator and Representative from New York

• 2 contributions · 2,000 USD (May 2 '17)

Virginia Together

• 2 contributions · 2,000 USD (Mar 3 '17)

Booker Senate Victory

• 2 contributions · 2,000 USD (Jun 5 '18)

Heidi Heitkamp former US Senator from North Dakota

• 2 contributions · 2,000 USD (Sep 25 '17)

Democratic Senatorial Campaign Committee Political Fundraising Committee for Democratic Senatorial Candidates

• 1 contribution · 2,000 USD (Mar 27 '07)

Schools

University of Rochester Private, coeducational, nonsectarian, nonprofit research university

• BS (?→'89)

Columbia Law School

• JD (?→'92)