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Holwell Shuster & Goldberg

United States (National)

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Quick facts
Partners

19

Other qualified practitioners

62

Total number of lawyers

81

Key practice areas
Insurance
Top 20 Trial Law Firms
Dispute resolution
Top Boutiques
Commercial
Firm overview

Holwell Shuster & Goldberg LLP is one of the nation’s most influential and respected litigation boutiques. Known for its ability to try high-impact commercial disputes with the greatest financial and legal stakes, and the quality of its legal scholarship and writing, the firm selectively draws talent trained at the finest law schools, clerkships, and firms. Notably, two-thirds of HSG’s partners and associates have served as clerks on domestic or international courts. HSG’s ranks include four former U.S. Supreme Court clerks.

Benchmark Litigation named HSG General Commercial Firm of the Year (2025), New York Law Firm of the Year three times since its founding (2016, 2024, and 2025), and a Top 10 Boutique (since 2017). Beyond recognition by Benchmark Litigation, HSG lawyers have been recognized consistently for their excellence by Chambers USA, The American Lawyer, Bloomberg Law, Legal 500, and in other rankings and publications.

Representing both plaintiffs and defendants, HSG serves as lead counsel for clients such as Visa, Chubb, HSBC, and government-owned pension funds in a range of disputes, and is particularly well known for:

Complex Commercial Disputes: HSG represents clients in a wide range of complex commercial disputes, both purely domestic and multi-jurisdictional, and is currently national trial counsel on some of the country’s largest and most high-profile cases, including for Chubb in nationwide opioid coverage litigation. The firm recently secured a $101 million jury verdict against Walmart in a lawsuit alleging the company wrongfully cancelled its contract to purchase personal protective equipment during the pandemic, and a jury verdict finding Boeing liable for $81.3 million for misappropriating trade secrets related to the development of electric and hybrid-electric aircraft. Its clients include, among others, multinational corporations, financial institutions, hedge funds and private equity funds, family-owned businesses, and directors of public companies.

Financial Markets & Securities Litigation: HSG lawyers have been involved in numerous landmark financial markets cases, representing, among others, banks, hedge funds, private equity funds, foreign governments, trustees, and other market participants. The firm established itself as a pioneer in RMBS ‘putback’ litigation, resolving billions of dollars in losses from the Great Recession. And the firm has taken the lead on innovative “cost-of-insurance” litigation in the Southern District of New York and other federal courts around the country.  

Distressed Debt Litigation.  HSG has also been at the forefront of litigation relating to high-profile liability-management exercises (LMEs) that have been challenged in court.  HSG represented both PetSmart and Travelport in cases concerning LMEs undertaken by those companies. More recently, HSG is representing a group of lenders challenging Serta’s 2020 uptiering transaction—and recently secured a front-page victory on appeal, which declared that the uptiering violated the credit agreement; HSG also was trial counsel for certain first lien noteholders that participated in a debt transaction undertaken by Incora. HSG’s clients recently secured a complete win on appeal based on the trial record.  

Antitrust Litigation: In addition to the firm’s ongoing representation of Visa in multi-district litigation involving hundreds of billions of dollars in claimed damages, the firm’s lawyers have represented Comcast, Raytheon, the NBA, General Re, Saudi Refining, Inc., Valve, and other clients in major antitrust litigation and governmental reviews. On the plaintiffs’ side, the firm recently represented Valassis, a MacAndrews & Forbes portfolio company, in a jury trial against News Corp.

Appellate Litigation: With its roster of former judges and Supreme Court clerks, the firm brings to the appellate process a unique understanding of how judges approach decision making. Whether in litigating an appeal or framing trial disputes in anticipation of appeal, HSG has the benefit of Judge Holwell’s experience as a district judge and designated circuit judge, Justice James McGuire’s service as a New York trial court and appellate court judge, and the insights offered by former U.S. Supreme Court clerks Vincent Levy, Daniel Sullivan, Gregory Dubinsky, and Jack Millman, along with other HSG attorneys who served as law clerks in federal courts of appeals.  

The group’s recent results underscore its range: a unanimous victory at the U.S. Supreme Court on a procedural question; major wins in the Fifth and Ninth Circuits on a “landmark” restructuring case and a multi-million dollar trade secrets verdict, respectively; the invalidation in a New York state appellate court of a statute (enacted in 1787) relating to the ability to sue judges monetarily; and the complete reversal of a bankruptcy court ruling in a closely-watched dispute arising out of a liability-management exercise.

Transnational Litigation: The firm has represented numerous clients in matters with transnational dimensions, including creditors against foreign sovereigns in disputes over defaults of their debt, to international arbitrations to Section 1782 proceedings. The firm’s lawyers have also represented various foreign sovereigns and state-owned entities in a variety of matters and have significant international arbitration experience. As just one example, the firm challenged across multiple fora the termination of power contracts worth more than a billion dollars, alleging breach of contract by the Angolan government and tortious interference by General Electric.

Investigations/Monitorships: Bringing to bear the firm’s considerable judicial experience, HSG lawyers handle criminal and regulatory enforcement investigations, as well as independent monitorships brought about by consent decrees, settlements, or otherwise. As one example, Judge Holwell, with the assistance of HSG, acted as an independent monitor engaged by a large financial institution pursuant to an agreement between the institution and the Securities and Exchange Commission.


Updated Sep 2025

Address:
425 Lexington Avenue
New York, NY 10017
Tel:+1 646 837 5151 Web Address:http://www.hsgllp.com
2027 Edition
Commercial
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Insurance
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Top Boutiques
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Linked Reviews
Dispute Resolution
Holwell Shuster & Goldberg continues to distinguish itself as one of the country's premier litigation boutiques, maintaining a formidable presence in New York while earning recognition nationally across commercial litigation, insurance, and trial work. The firm's reputation is built on a combination of sophisticated advocacy, strategic thinking, and an ability to guide clients through some of the most consequential disputes in the market. One client observes that the firm "brings big brains and passionate lawyers to every matter," noting that its lawyers "go deep into the issues that their clients care about and know how to work efficiently as a sophisticated but nimble team." The firm's leadership role in nationwide insurance coverage litigation and its success in high-stakes commercial disputes continue to reinforce its standing among peers and clients alike.

Within the firm's insurance practice, Blair Kaminsky and Daniel Sullivan attract particular acclaim. A peer notes that Sullivan "tends to have the lead role in cases" and praises his ability to "[build] consensus among a large group of people" while remaining highly tactical. Kaminsky likewise earns praise for her courtroom work, with one peer commenting that she "has argued a number of the important motions," describing her as "well-organized" with a notable success rate. A major client is equally enthusiastic, stating that Kaminsky "leads cases with incredible rigor, passion and mastery" and has become "a strong, trusted leader among her peers and clients and the bar." Fellow partner Daniel Horowitz is described by a client as "a grounded listener and a fierce advocate" whose creativity and judgment make him a trusted adviser on particularly complex matters.

These qualities have been on display in the firm's continuing representation of Chubb in a sprawling portfolio of opioid-related insurance coverage disputes involving many of the largest pharmaceutical manufacturers, distributors, retailers, and consultants in the United States. Led by Michael Shuster, Kaminsky, and Sullivan, the team secured significant victories against policyholders including Albertsons, CVS, Mallinckrodt, Publix, Rite Aid, McKesson, and Zogenix, while continuing to help shape developing jurisprudence concerning insurance coverage arising from the opioid crisis. One peer remarks that Holwell Shuster "takes the lead on many of the opioid cases," noting that the firm successfully drives matters forward, achieves consensus among numerous parties, and never loses sight of broader strategic goals.

The firm's insurance capabilities have also expanded into emerging areas of coverage litigation. Kaminsky and Horowitz represent Chubb in disputes arising from social media addiction claims against Meta, Google/YouTube, and Snap. The most notable development came in the Meta litigation, where the team secured procedural victories returning the dispute to Delaware before ultimately obtaining summary judgment that Chubb had no obligation to cover Meta's defense costs in the underlying social media addiction litigation. The matter stands among the earliest significant rulings addressing insurance coverage for claims alleging intentionally addictive product design and highlights the firm's ability to navigate novel legal questions with wide-ranging industry implications.

Outside the insurance arena, Vincent Levy and Scott Danner continue to demonstrate the firm's strength in complex commercial and appellate litigation. The pair secured a landmark victory for aerospace startup Zunum Aero when the Ninth Circuit reinstated in full an $81 million trade secrets verdict against Boeing. The underlying jury verdict found that Boeing had willfully and maliciously misappropriated Zunum's trade secrets, breached contractual obligations, and interfered with a key business relationship. The appellate victory restored one of the most significant trade secrets awards obtained by a startup against a major aerospace company and positioned the case as one of the most consequential trade secret disputes in the aerospace sector.

Levy's appellate work draws particularly strong praise from peers. One source highlights the work of Levy and Jack Millman on a complex appeal, observing that they "broke everything down exceptionally well" and excelled at presenting dense issues in a persuasive and accessible manner. The peer further notes that while less accomplished lawyers might have become lost in the details, the pair effectively balanced mastery of both the broader strategy and the finer points of the case. Clients similarly commend Levy's business-minded approach, describing him as the partner who analyzed the case, directed negotiations, and remained focused on achieving practical results.

The depth of the firm's bench also receives consistent recognition. Matthew Gurgel is praised by both peers and clients for his strategic instincts and command of complex matters. One peer describes him as a lawyer who "rolls up his sleeves," understands intricate details, and appreciates how those details fit into a broader litigation strategy. A client goes even further, remarking that Gurgel "plays ten chess moves ahead of his opponents" and possesses "razor sharp" litigation instincts. Other lawyers earning positive commentary include Prianka Timblo, who a client credits for maintaining excellent communication and remaining closely involved throughout a matter, and Brian Goldman, who was commended for his management of day-to-day case strategy and attention to detail.

Across its practice, Holwell Shuster & Goldberg continues to punch well above its size, combining trial prowess, appellate sophistication, and strategic counseling for clients facing their most important disputes. Whether handling precedent-setting insurance coverage battles, high-stakes antitrust counseling, or headline-grabbing commercial litigation, the firm remains a destination boutique for clients seeking elite advocacy in complex matters.


Updated October 2026
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The landmark $200 billion ruling, secured by the New York boutique, brings two decades of antitrust litigation one step closer to resolution
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