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Exhibit 24
Power of Attorney
KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Nicolas Papadopoulo and François Morin as his or her true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign Arch Capital Group Ltd.’s Annual Report on Form 10-K for the year ended December 31, 2025 and any and all amendments and supplements thereto, and to file the same with the Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his substitute or substitutes, may lawfully do or cause to be done by virtue hereof.

Signature
Title
Date
/s/ Nicolas Papadopoulo
Chief Executive Officer (Principal Executive Officer)
February 26, 2026
Nicolas Papadopoulo
/s/ François Morin
Executive Vice President and Chief Financial Officer (Principal Financial Officer and Principal Accounting Officer) and Treasurer
February 26, 2026
François Morin
/s/ John M. Pasquesi
Chair of the Board
February 26, 2026
John M. Pasquesi
/s/ John L. Bunce, Jr.
Director
February 26, 2026
John L. Bunce, Jr.
/s/Francis Ebong
Director
February 26, 2026
Francis Ebong
/s/ Laurie S. Goodman
Director
February 26, 2026
Laurie S. Goodman
/s/ Daniel J. Houston
Director
February 26, 2026
Daniel J. Houston
/s/ Moira Kilcoyne
Director
February 26, 2026
Moira Kilcoyne
/s/ Eileen Mallesch
Director
February 26, 2026
Eileen Mallesch
/s/ Alexander Moczarski
Director
February 26, 2026
Alexander Moczarski
/s/ Brian S. Posner
Director
February 26, 2026
Brian S. Posner
/s/ Neal Triplett
Director
February 26, 2026
Neal Triplett
/s/ John D. Vollaro
Director
February 26, 2026
John D. Vollaro