November 7, 2025
Craig C. Martin, Chairman, Americas, and Sara Tonnies Horton, Co-Chair of Willkie’s IP Litigation Practice Group, have been named to the 2025 Irish Legal 100, an annual series recognizing leaders in the law of Irish descent.
Craig, a member of Willkie’s Executive Committee, is widely recognized as a “courtroom to boardroom” lawyer who represents clients in their most important strategic, reputational and economic matters in virtually every substantive area of the law. In addition to excelling as a first-chair trial lawyer, Craig regularly counsels corporate boards and provides legal and business advice to the Fortune 100, family offices and private investors on transactions globally. Craig launched Willkie’s Chicago office in 2020 and has established it as a market leader, growing it into a multidisciplinary team of approximately 110 lawyers.
Sara Tonnies Horton is recognized among the leaders of the patent bar and has extensive experience in complex disputes before trial courts across the country, the Federal Circuit, and the Patent Trial and Appeal Board. She has represented clients in disputes involving a variety of technologies including pharmaceuticals, polymers, packaging, alloys, and food manufacturing. In addition to patent matters, Sara has tried antitrust, actuarial malpractice, anti-dumping and transshipment, and other types of cases to juries. Sara serves as co-chair of the Amicus Committee of the PTAB Bar Association, teaches trial advocacy at Harvard Law School, and is an active member of the Richard Linn American Inn of Court.
Craig has been named to the Irish Legal 100 every year since 2021, and this is the third year in a row Sara has been recognized.
The Irish Legal 100, founded in 2008 by the Irish Voice newspaper, honors top lawyers, members of the judiciary and legal scholars of Irish descent. The honorees were recognized at an event at the residence of the Ambassador of Ireland to the United States in Washington, D.C.
View the 2025 Irish Legal 100 here.
Craig, a member of Willkie’s Executive Committee, is widely recognized as a “courtroom to boardroom” lawyer who represents clients in their most important strategic, reputational and economic matters in virtually every substantive area of the law. In addition to excelling as a first-chair trial lawyer, Craig regularly counsels corporate boards and provides legal and business advice to the Fortune 100, family offices and private investors on transactions globally. Craig launched Willkie’s Chicago office in 2020 and has established it as a market leader, growing it into a multidisciplinary team of approximately 110 lawyers.
Sara Tonnies Horton is recognized among the leaders of the patent bar and has extensive experience in complex disputes before trial courts across the country, the Federal Circuit, and the Patent Trial and Appeal Board. She has represented clients in disputes involving a variety of technologies including pharmaceuticals, polymers, packaging, alloys, and food manufacturing. In addition to patent matters, Sara has tried antitrust, actuarial malpractice, anti-dumping and transshipment, and other types of cases to juries. Sara serves as co-chair of the Amicus Committee of the PTAB Bar Association, teaches trial advocacy at Harvard Law School, and is an active member of the Richard Linn American Inn of Court.
Craig has been named to the Irish Legal 100 every year since 2021, and this is the third year in a row Sara has been recognized.
The Irish Legal 100, founded in 2008 by the Irish Voice newspaper, honors top lawyers, members of the judiciary and legal scholars of Irish descent. The honorees were recognized at an event at the residence of the Ambassador of Ireland to the United States in Washington, D.C.
View the 2025 Irish Legal 100 here.
