Gregory H. Horowitz | McCarter & English, LLP

For over thirty years, Gregory Horowitz has litigated, mediated, arbitrated, and counseled corporate clients in connection with a wide range of complex commercial insurance coverage disputes. His experience spans matters involving advertising injury, asbestos, bad faith, breast implant, business interruption, crime/fidelity, class actions, construction, Directors & Officers, Errors & Omissions, educators’ legal liability, environmental, intellectual property, product liability, property damage, and personal computer warranty claims, as well as complex finite and captive reinsurance disputes.

Greg is a powerful asset for commercial policyholder clients seeking to favorably resolve their most high-stakes and technically challenging matters. Greg is ranked in 2026 Chambers USA for Insurance in New Jersey (Band 2), with McCarter & English’s insurance practice recognized in Band 1. The firm is known for its notable capabilities in the insurance coverage recovery counseling and litigation space, with an insurance coverage group that regularly excels on behalf of varied corporate policyholder clients.

Clients and peers consistently recognize Greg’s depth of experience and practical approach. As noted by Chambers USA, “Greg is very responsive,” and clients add: “Greg is a very knowledgeable insurance coverage attorney” and “Greg has a lot of experience to pull from and can be trusted to come up with creative solutions.” He has served as a trusted advisor to leading companies across various industries, including Colgate-Palmolive/Mennen, Estée Lauder Company, Educational Testing Service, L Brands, NVR/ Ryan Homes, Hudson’s Bay Company/Saks Fifth Avenue, General Electric Company, 3M Company, American Standard Brands/LIXIL Water Technology, Total S.A., and Toll Brothers, among others, securing reimbursement on hundreds of millions of dollars in losses through creative and relentless advocacy.

In addition to his coverage practice, Greg has successfully represented clients in insurance broker disputes and handled novel international insurance intermediary matters. He has lectured on broker liability issues at the American Bar Association and New Jersey Institute for Continuing Legal Education programs. Greg also regularly counsels clients on additional insured disputes and has co-authored industry articles on the subject, as well as participated in panels addressing related issues.

In addition to his client work, Greg has been actively involved in firm management over the past decade. He also previously served on the Ethics Committee of the New Jersey Supreme Court, District VB (Suburban Essex County).

Regularly represent a Fortune 500 corporation and its affiliates in connection with additional insured coverage claims for bodily injuries allegedly suffered by various claimants at construction sites. Our representation includes counseling and litigation for the client in those instances where matters progress to coverage and/or bad faith disputes .

Following a six-month trial, secured a declaratory judgment entirely in favor of a corporate policyholder conglomerate in a long-running dispute with a former subsidiary regarding more than $1.5 billion in insurance coverage our client had purchased for itself and its subsidiaries as part of a consolidated risk management approach. We went on to successfully defend the win before the Appellate Division, and then before the New Jersey Supreme Court which affirmed our victories and further ordered that costs be paid in our client’s favor.

Secured dismissal of an intermediary in a New Jersey federal court action and related court-ordered mediation arising from a series of complex insurance and reinsurance transactions involving multiple parties and related disputes in Brazil and New York.

Represented a captive of a global petroleum corporation in a New York Commercial Division litigation against defendant insurers over their respective shares of $50 million of total loss coverage for catastrophic damages suffered at an oil platform facility located in Norway’s North Sea after it was struck by a large marine vessel.

Memberships & Certifications