Olga Ponomarenko and Irina Bratishkina Join Cohen & Gresser in London

Cohen & Gresser is pleased to welcome Olga Ponomarenko as a partner in its London office, joined by Irina Bratishkina as an associate. Together, they bring extensive experience advising clients on complex cross-border mergers and acquisitions, co-investments, equity capital markets transactions, and strategic corporate matters. Prior to joining the firm, Olga was a partner at Latham & Watkins, and Irina was an associate at Cleary Gottlieb Steen & Hamilton.

Olga represents private equity sponsors, sovereign wealth funds, multinational corporations, and financial institutions across a wide range of industries, including technology, energy, financial services, consumer, and infrastructure. She is particularly known for her work on multi-jurisdictional transactions, co-investments, sophisticated carve-outs and joint ventures, sanctions compliance matters, and large-scale corporate reorganizations. Her practice spans Europe, the CIS region, the Middle East, and beyond, reflecting a truly international client base.

Irina is a private equity and M&A lawyer with experience advising private equity sponsors, sovereign wealth funds, international corporations, and private investors on complex cross-border transactions. Her practice focuses on mergers and acquisitions, corporate restructurings, exits, and strategic investments across a range of sectors, including advising on transaction execution, regulatory considerations, and related compliance 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. “They bring a highly complementary combination of cross-border transactional experience, elite client service, commercial judgment, and deep familiarity with complex, multi-jurisdictional matters. Their addition reflects our continued growth trajectory and enhances our ability to support clients navigating multi-jurisdictional deals and evolving regulatory environments.”

“I am delighted to join Cohen & Gresser and to be part of such a dynamic and internationally focused platform,” said Olga. “The firm’s strength in cross-border matters and its collaborative culture provide an excellent environment to continue growing our practice and serving clients on their most complex and strategic transactions. Irina and I look forward to collaborating with colleagues across all our offices to deliver seamless, commercially focused advice.”

Olga and Irina join Cohen & Gresser’s London office at a time of continued growth for the firm’s international corporate practice, further reinforcing its capabilities in cross-border M&A, co-investments, capital markets, and strategic investments.

About Cohen & Gresser’s Corporate Group

Operating across its offices in New York, Paris, Washington, D.C., London, and Dubai, Cohen & Gresser advises clients on a broad range of domestic and cross-border corporate matters, including mergers and acquisitions, capital raising, fund formation, corporate governance, and regulatory compliance.

The firm represents public and private companies, private equity, growth equity, venture capital, and hedge funds and their managers, sovereign entities, family offices, and investment banks. Cohen & Gresser has experience in emerging markets and regularly counsels clients across a wide spectrum of industries, including technology, financial services, media, professional services, infrastructure, renewables, energy, healthcare, consumer products, manufacturing, real estate, and hospitality.

In addition, the firm serves as outside general counsel to a number of privately held companies, providing strategic, practical guidance across the full lifecycle of their businesses.

Contact Olga
oponomarenko@cohengresser.com
+44 (0) 20 8037 2327

Contact Irina
ibratishkina@cohengresser.com
+44 (0) 20 8036 9404

Media Contact
Laura Kucera
lkucera@cohengresser.com
+1 212 707 1338