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J.W. Montgomery III (Jack)
Of Counsel


(T) +1.412.394.7913
(F) +1.412.394.7959


  • The College of William & Mary (J.D. 1972; Executive Editor, Law Review); University of Virginia (B.A. 1968)

Bar Admissions

  • Pennsylvania

Jack Montgomery's practice focuses exclusively on insurance coverage advice, litigation, and arbitration. He handles insurance coverage litigation in various jurisdictions and national and international insurance arbitrations.

Notable cases include Koppers Co., Inc. v. Aetna (1996) (affirming a $70 million jury verdict against Lloyd's and London companies, subject to a deduction for "share" of settling insurers); Occidental Chemical Corp. v. Hartford (the "Love Canal" insurance coverage dispute); Motorola v. Associated Indem. Corp. (2004) (requiring third-party liability insurers to defend class actions seeking the costs of headsets for cell phone users); PepsiCo, Inc. v. Winterthur Int'l America Ins. Co. (2004) (limiting the scope of a seepage/pollution/contamination exclusion in first-party insurance to environmental damage and not to product contamination); and PepsiCo, Inc. v. Winterthur Int'l America Ins. Co. (2005) (holding that lack of merchantability of a product constitutes "physical damage to tangible property"). Prior to joining Jones Day, Jack was lead counsel in Joy Technologies, Inc. v. Liberty Mut. Ins. Co. (1992) (applying "regulatory estoppel" to bar application of the so-called "pollution exclusion").

As lead counsel, Jack recently tried to conclusion three insurance arbitrations, two in London and one in the United States. He is also representing Transocean in connection with the Deepwater Horizon/Macondo well incident insurance issues. Other representative clients include Occidental Petroleum, Occidental Chemical, GE, GM, Motorola Solutions, PepsiCo, Macy's, and Air Products and Chemicals among others.

Jack regularly serves as an arbitrator in London-based, Bermuda-based, and domestic insurance arbitrations. For 24 years, he has been an adjunct professor at the University of Pittsburgh School of Law, teaching substantive courses on insurance law.

Honors & Distinctions

  • Fellow, American College of Trial Lawyers

    Fellow, American College of Coverage and Extracontractual Counsel

    Member, The American Law Institute

    Listed in the Guide to the World's Leading Insurance and Reinsurance Lawyers (published by the Euromoney Legal Media Group), The Best Lawyers in America, and Pennsylvania Super Lawyers

    Adviser to the ALI on the "Principles of the Law of Liability Insurance" project

    Chambers USA (2017), insurance (nationwide)
J.W. Montgomery Jack