Cohen & Gresser is an international law firm with offices in New York, Paris, Washington, D.C., London, and Dubai. We have an outstanding record of success in high-stakes and high-profile litigation, investigations, and transactions for our clients, including major financial institutions and companies across the world. Our attorneys have superb credentials, and are committed to providing the efficiency and personal service of a boutique law firm along with the quality and attention to detail that are the hallmarks of the best firms in the world.
The firm has been recognized in a wide range of publications, including Chambers, The Legal 500, Global Investigations Review, Managing IP, U.S. News & World Report’s “Best Law Firms,” Décideurs, and Benchmark Litigation. We have also been named to The National Law Journal’s “Midsize Hot List” and the BTI Client Service A-Team, and over half of our U.S.-based attorneys have been recognized by Super Lawyers.
Olga Ponomarenko and Irina Bratishkina Join Cohen & Gresser in London
Cohen & Gresser is pleased to welcome Olga Ponomarenko as a partner in our London office, joined by Irina Bratishkina as an associate.
Olga and Irina bring extensive experience advising private equity sponsors, sovereign wealth funds, multinational corporates, and financial institutions on complex cross-border M&A, co-investments, and strategic transactions, with particular strength in multi-jurisdictional matters.
“The arrival of Olga and Irina strengthens our corporate capabilities both in Europe and around the world,” said Daniel Mathias, managing partner of the firm’s London office.
Olga Ponomarenko and Irina Bratishkina Join Cohen & Gresser in London
Cohen & Gresser is pleased to welcome Olga Ponomarenko as a partner in our London office, joined by Irina Bratishkina as an associate. Olga and Irina bring extensive experience advising private equity sponsors, sovereign wealth funds, multinational corporates, and financial institutions on complex cross-border M&A, co-investments, and strategic transactions, with particular strength in multi-jurisdictional matters. “The arrival of Olga and Irina strengthens our corporate capabilities both in Europe and around the world,” said Daniel Mathias, managing partner of the firm’s London office. Read more
Cohen & Gresser Featured in the Financial Times on the Future of Private Equity in US Law Firms
“This is a moment of both uncertainty and opportunity,” Lawrence T. Gresser, Cohen & Gresser’s co-founder and managing partner told the Financial Times in a piece examining private equity investment in U.S. law firms and the future of the legal industry.
“One major benefit of the new structure is that the law firm can offer partners equity that will increase in value as the enterprise grows, encouraging partners to think and act in the long-term interest of the firm.”
Cohen & Gresser Featured in the Financial Times on the Future of Private Equity in US Law Firms
“This is a moment of both uncertainty and opportunity,” Lawrence T. Gresser, Cohen & Gresser’s co-founder and managing partner told the Financial Times in a piece examining private equity investment in U.S. law firms and the future of the legal industry. “One major benefit of the new structure is that the law firm can offer partners equity that will increase in value as the enterprise grows, encouraging partners to think and act in the long-term interest of the firm.” Read more
Cohen & Gresser’s Paris Team Recognized in Chambers France 2026
Cohen & Gresser’s Paris White-Collar Crime practice has been recognized in the 2026 edition of Chambers France.
The team is led by Muriel Goldberg-Darmon, managing partner of the Paris office, and includes partner Vincent Desry, counsels Guillaume Guerin and Pierre Wolman, and associate Alix Crocheton, whose collective experience in complex white-collar and regulatory matters plays a key role in the strength and reputation of the Paris practice.
In addition, Vincent has been recognized as “Up and Coming” for White-Collar Crime, reflecting his growing reputation and strong client feedback in this area.
Cohen & Gresser’s Paris Team Recognized in Chambers France 2026
Cohen & Gresser’s Paris White-Collar Crime practice has been recognized in the 2026 edition of Chambers France.
The team is led by Muriel Goldberg-Darmon, managing partner of the Paris office, and includes partner Vincent Desry, counsels Guillaume Guerin and Pierre Wolman, and associate Alix Crocheton, whose collective experience in complex white-collar and regulatory matters plays a key role in the strength and reputation of the Paris practice. In addition, Vincent has been recognized as “Up and Coming” for White-Collar Crime, reflecting his growing reputation and strong client feedback in this area. Read more
Cohen & Gresser Earns Continued Recognition as a Top Global Investigations Firm in the 2025 GIR 100
Cohen & Gresser is honored to again be recognized in Global Investigations Review’s GIR 100, marking the firm’s seventh consecutive appearance in the definitive annual guide to the world’s leading investigations practices.
The 2025 edition highlights the firm’s substantial experience managing complex cross-border matters and its trusted counsel to high-profile individuals, multinational corporations, and financial institutions.
The GIR 100 identifies the top 100 investigations firms globally through comprehensive submissions and rigorous independent research. This year’s guide underscored Cohen & Gresser’s strong global presence and the depth of its investigations capabilities, noting the firm’s proven record in government-led, internal, and multijurisdictional matters.
Cohen & Gresser Earns Continued Recognition as a Top Global Investigations Firm in the 2025 GIR 100
Cohen & Gresser is honored to again be recognized in Global Investigations Review’s GIR 100, marking the firm’s seventh consecutive appearance in the definitive annual guide to the world’s leading investigations practices. The 2025 edition highlights the firm’s substantial experience managing complex cross-border matters and its trusted counsel to high-profile individuals, multinational corporations, and financial institutions. The GIR 100 identifies the top 100 investigations firms globally through comprehensive submissions and rigorous independent research. This year’s guide underscored Cohen & Gresser’s strong global presence and the depth of its investigations capabilities, noting the firm’s proven record in government-led, internal, and multijurisdictional matters. Read more