New York Office

800 Third Avenue
New York, New York 10022

New York

Founded in 2002, Cohen & Gresser’s New York office serves as the firm’s headquarters.

Our New York office is particularly strong in securities litigation and arbitration, international arbitration, regulatory investigations, patent litigation, and M&A transactions.  Our lawyers regularly handle complex litigation, investigations, and transactions for major financial institutions and Fortune 500 companies throughout the world. Our attorneys have been recognized in a wide range of publications, including Chambers, The Legal 500, and Benchmark Litigation, and half of our attorneys have been named as New York Super Lawyers or Rising Stars.

We work closely with the lawyers in our other offices on cross-border litigation, investigations, and transactions, and we regularly assist international clients doing business in the United States on a wide range of U.S. legal and regulatory matters.

International law firm Cohen & Gresser represented Sierra Space Corporation, a commercial space company that is building and delivering the infrastructure and systems required for the future of space travel, in its record-breaking $1.4 billion Series A financing round. The private funding round represents the largest aerospace and defense capital raise in the world in 2021 and the second-largest private capital raise of all time in the aerospace and defense sector. Leading global investors including General Atlantic, Coatue, and Moore Strategic Ventures, along with private equity funds managed by firms including Black Rock and AE Industrial Partners and various family offices, all participated in the transaction. Cohen & Gresser served as counsel to our client Sierra Space on all aspects of the transaction. “We are proud of the opportunity to assist Sierra Space in this groundbreaking transaction to support the future of space travel,” said Jeffrey M. Bronheim, lead partner on the engagement for Cohen & Gresser. The Cohen & Gresser team was led by Jeffrey M. Bronheim, Bonnie J. Roe, and Daniel H. Mathias, with assistance from associates Winnifred A Lewis and Georgia Moorhouse. C&G partners Nicholas J. Kaiser (tax), Ronald F. Wick (antitrust), and David F. Lisner (litigation) provided additional support. Read Sierra Space Corporation’s press release here.
International law firm Cohen & Gresser has once again been ranked by Global Investigations Review (GIR) as one of the leading law firms in the world for cross-border investigations. The GIR 100, an independent guide to the world’s best firms for investigations, recognized C&G for its major victories on behalf of high-profile individuals and companies and its strong network of prominent lawyers in key jurisdictions around the globe.

GIR recognized the U.S. team’s deep bench of “former attorneys from New York’s famed prosecution offices,” and its “impressive work for corporates” in recent years. The guide also highlights the firm’s international reach, calling attention to C&G’s “strong practice in France” and the rapid development of its London office, which it describes as having “grown from strength to strength” with the recent addition of Richard Kovalevsky QC.

GIR also shortlisted C&G for the Most Important Court Case of the Year award for the significant victory on behalf of KBR Inc. at the UK Supreme Court. It is the second time in four years that C&G has been named a finalist for this award. The firm was previously recognized in 2018 for securing the dismissal with prejudice of a high-profile FCPA case brought by the U.S. Securities and Exchange Commission.

The GIR 100 is based on submissions from law firms and extensive research, and honors the top 100 firms around the world that handle sophisticated government-led, internal, and cross-border investigations.

U.S. News – Best Lawyers have once again recognized Cohen & Gresser among the Best Law Firms in the United States. As a testament to the firm’s capabilities and experience, the 2022 guide has honored Cohen & Gresser with multiple Tier 1 rankings in the New York region.

Cohen & Gresser has been nationally ranked as a Best Law Firm in two practice areas – Criminal Defense: White Collar and Commercial Litigation.

Additionally, the firm has been recognized in New York as a Best Law Firm in four practice areas – Criminal Defense: White-Collar, Product Liability Litigation – Defendants, Commercial Litigation, and Litigation – Securities.

The U.S. News – Best Lawyers “Best Law Firms” rankings are based on a rigorous evaluation process that collects data from clients, professional references, and attorneys currently recognized as Best Lawyers.

View the complete results of C&G’s rankings.

Cohen & Gresser is pleased to announce that 38 of the firm's New York and Washington D.C.­based attorneys have been named to the 2021 Super Lawyers List across a wide range of practice areas. C&G co­founder Mark S Cohen and partners Jonathan S Abernethy and Daniel H Tabak have also been named to the Super Lawyers list of the top 100 lawyers in the New York metropolitan area, and partner Karen H Bromberg has been recognized as one of the top 50 women lawyers in the New York metropolitan area. Super Lawyers ranks outstanding lawyers who have attained a high degree of peer recognition and professional achievement. Only five percent of the lawyers in each state are selected as Super Lawyers, and only 2.5 percent are selected as Rising Stars. Super Lawyers Jonathan S Abernethy: Criminal Defense: White Collar Kwaku Andoh: Mergers & Acquisitions Elizabeth Bernhardt: Business Litigation Thomas E Bezanson: Personal Injury – Products: Defense Colin C Bridge: Criminal Defense: White Collar Karen H Bromberg: Intellectual Property Jason Brown: Criminal Defense: White Collar Damir Cefo: Intellectual Property Litigation Joanna K Chan: Securities Litigation Mark S Cohen: Business Litigation S Gale Dick: Business Litigation Christian R Everdell: Criminal Defense: White Collar Lawrence T Gresser: Business Litigation Oliver S Haker: Business Litigation Johannes Jonas: Mergers & Acquisitions Nicholas J Kaiser: Real Estate Jeffrey I. Lang: Business Litigation Melissa H Maxman: Antitrust Litigation Ellen Paltiel: General Litigation Nathaniel P T Read: Business Litigation Bonnie J Roe: Securities & Corporate Finance Stephen M Sinaiko: Business Litigation C Evan Stewart: Securities Litigation Daniel H Tabak: Business Litigation Scott D Thomson: Business Litigation Alexandra Wald: Business Litigation Ronald F Wick: Antitrust Litigation Rising Stars Luke Appling: Civil Litigation Sharon L Barbour: Criminal Defense: White Collar Drew S Dean: General Litigation William Kalema: Business Litigation Sri Kuehnlenz: Civil Litigation Winnifred A Lewis: Securities Litigation Marvin J Lowenthal: Criminal Defense: White Collar Barbara K Luse: Criminal Defense: White Collar Matthew V Povolny: Business Litigation Benjamin Zhu: Criminal Defense: White Collar
International law firm Cohen & Gresser is pleased to announce that eight of its lawyers have been recognized in the 2022 edition of the Best Lawyers in America. Selection in the 28th edition of the guide is based entirely on peer-review surveys in which tens of thousands of leading lawyers evaluate their professional peers.

Five C&G attorneys have been recognized by their peers as a “Best Lawyer” in their practice areas:

  • Jonathan S. Abernethy – Criminal Defense: White-Collar
  • Thomas E. Bezanson – Commercial Litigation and Product Liability Litigation: Defense
  • Jason A. Brown – Criminal Defense: White-Collar
  • Mark S. Cohen – Criminal Defense: White-Collar
  • Evan Stewart – Litigation – Securities

Three C&G attorneys have been recognized as “Best Lawyers: Ones to Watch” in their practice areas:

  • Sharon L. Barbour – Criminal Defense: White-Collar
  • Winnifred A. Lewis – Commercial Litigation
  • Alexandra K. Theobald – Commercial Litigation

IAM Patent 1000 has recognized Karen H Bromberg as a leading patent professional in its 2021 guide. Published by Intellectual Asset Management (IAM), the ranking “is commonly regarded as the definitive ‘go-to’ resource for those seeking to identify world-class, private practice patent expertise and leading expert witnesses in the US.” In determining the rankings, IAM looks at several factors, including depth of knowledge, market presence, and level of work, as well as positive peer and client feedback.

International law firm Cohen & Gresser has been once again recognized in The Legal 500 United States. The 2021 guide highlights C&G for its financial services strength – emphasizing the firm’s “understanding of complex financial products and the operations of the financial services sector” – and its “extensive experience in jury and bench trials at the federal and state level.”

Client commentary highlights C&G as “a cut above” and “very effective at knowing their audience, staying on message, and telling a persuasive and winning story.”

The Legal 500 has recognized C&G in both the Advice to Individuals category and Advice to Corporates category of the Corporate Investigations and White-Collar Criminal Defense section. The guide notes the practice’s deep bench that “includes former federal and state prosecutors, and former in-house attorneys, many of whom are active litigators, and have unique experience of federal enforcement bodies.”

C&G has also been recognized in the General Commercial Disputes category. The practice stands out for its capacity to handle “a diverse range of commercial disputes across numerous industries, including finance, software, technology and healthcare” and its ability to “handle complex, sophisticated matters in a cost-effective manner.”

For the ninth consecutive year, C&G has been recognized by The Legal 500 in the Securities Litigation: Defense category for its “work on the defense of broker-dealers, investment advisors, hedge funds, and private equity funds in securities litigation and FINRA arbitrations.”

In addition, Mark S Cohen is once again ranked as a “Leading Lawyer” for Securities Litigation: Defense. One client describes Mark as “one of the best trial lawyers I have seen” and goes on to recognize him for his professionalism, responsiveness, excellent judgment, and high-quality work.

Recognized Practices:

  • Corporate Investigations and White-Collar Criminal Defense: Advice to Individuals
  • Corporate Investigations and White-Collar Criminal Defense: Advice to Corporates
  • General Commercial Disputes
  • Securities Litigation: Defense
Recognized Individuals:

Corporate Investigations and White-Collar Criminal Defense General Commercial Disputes Securities Litigation: Defense

International law firm Cohen & Gresser has received high praise in Chambers USA 2021 for its “outstanding service” and dramatic international growth that “further strengthens its handling of cross-border proceedings.” Chambers commentary highlights C&G as one of the “biggest [law firm] innovators of the last forty years” and recognizes the firm’s “red-carpet treatment” for clients and “high-quality lawyers” who are “responsive, knowledgeable and service-oriented.”

Ranked Departments:

  • Litigation: General Commercial: Highly Regarded
  • White-Collar Crime & Government Investigations: The Elite

Ranked Lawyers:

Intellectual Property: Patent Litigation: General Commercial Litigation: Securities White-Collar Crime & Government Investigations

International law firm Cohen & Gresser represented One Day University, an education services provider, in its $5 million sale to CuriosityStream Inc., a leading global factual streaming service and media company. CuriosityStream announced in its release that the acquisition of One Day University “complements and enhances CuriosityStream’s offering of premium factual content and provides additional long-term revenue and promotional opportunities by connecting directly with new audiences in new formats.” One Day University offers access to more than 500 lectures from professors at more than 150 colleges and universities in the U.S., including live in-person events, live-streamed series with Q&A, digital courses, as well as a subscription to on-demand access to a library of hundreds of informative lectures. C&G’s Bonnie J Roe advised One Day University on this sale transaction. Learn more about the deal in CuriosityStream's press release.
Cohen & Gresser represented Imagine Software, a leading global portfolio risk management technology company, in its sale to Francisco Partners, a global investment firm that specializes in partnering with technology and technology-enabled businesses. Francisco Partners has announced that it will combine Imagine Software with the recently acquired TradingScreen to form TS Imagine – a new dynamic end-to-end trading and portfolio management software platform that will be one of the most robust SaaS cloud-based software platforms in capital markets and investment management. The combined company will offer integrated and complete front office solutions, complementary product capabilities, best-in-class technology, global geographic coverage, and deep expertise to investment firms and financial institutions around the world. The C&G team representing Imagine Software in its sale to Francisco Partners included Lawrence T Gresser, Kwaku Andoh, Karen H Bromberg, Bonnie J Roe, Nicholas J Kaiser, Ronald F Wick, Alexandra K Theobald, and Drew S Dean. Learn more about the deal in Francisco Partners’ press release.

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General Inquiries

Managing Partner

Mark S Cohen

800 Third Avenue
New York, New York 10022

+1 212 957 7600 phone
+1 212 957 4514 fax