Jonathan M. Ciriello



(215) 665-2732

(215) 665-2013

Jon is an experienced commercial litigator focusing his practice primarily on construction law. He counsels and represents project owners and developers, contractors, and design professionals in all stages of construction projects, including contract formation/negotiations, project management, pre-suit investigation and development of potential claims, and litigation of claims in state and federal trial and appellate courts across the country. Jon’s practice includes public and private projects, agency appeals, and alternative dispute resolution in the form of arbitrations and mediations relating to traditional vertical construction, as well as some of the largest linear infrastructure and energy projects in the United States. In addition to traditional breach of contract actions and extracontractual claims, Jon regularly handles claims and issues relating to performance and payment bonds, insurance, and mechanics’ liens.

Jon also serves the Philadelphia community through his pro bono work, working with the Philadelphia Volunteers for the Indigent Program (VIP).

Jon earned his undergraduate degree from Hamilton College where he was a two-year captain of the varsity men’s basketball team. Jon then earned his law degree, cum laude, from Villanova University’s Charles Widger School of Law. While earning his law degree, Jon was a judicial intern to The Honorable Michael M. Baylson of the U.S. District Court for the Eastern District of Pennsylvania.



More Than 200 Cozen O’Connor Attorneys Named Best Lawyers and Ones to Watch By The Best Lawyers In America

August 20, 2020

Best Lawyers selected 201 Cozen O’Connor lawyers from 23 of the firm’s nationwide offices for inclusion in the 2021 edition of The Best Lawyers in America© (Copyright 2020 by Woodward/White, Inc., of Aiken, SC).


  • Villanova University School of Law, J.D., cum laude, 2014
  • Hamilton College, B.A., 2011

Awards & Honors

Reader’s Choice Best Lawyer in Delaware, 2015

Best Lawyers in America "Ones to Watch" 2021

  • New Jersey
  • Pennsylvania
  • U.S. District Court -- Eastern District of Pennsylvania
  • U.S. District Court -- Middle District of Pennsylvania

Philadelphia Youth Basketball “PYB,” Member

NextGen, Committee Member

Pennsylvania Bar Association, Member

New Jersey Bar Association, Member

Philadelphia County Bar Association Young Lawyers Division