Stephen Rosen > Cooley (UK) LLP > London, England > Lawyer Profile

Cooley (UK) LLP
22 Bishopsgate

Living Wage

Stephen Rosen photo

Work Department

Emerging Companies
Life Sciences
Mergers & Acquisitions
Venture Capital
Private Equity


Stephen Rosen is a partner in our London office. Stephen’s experience is in acting for high growth companies, investors, entrepreneurs and management teams on corporate transactions with particular expertise on company sales and purchases, mergers and acquisitions and private equity and venture capital financings across a range of industry sectors. Stephen also regularly acts for spin outs, VC funded companies and well known investors in the life sciences sector.

Clients have said that Stephen is “incredibly smart and switched on” and “can be tough when required but is also calm and fair” and “he stands out for his tenacity and ability to deliver practical solutions when problems arise.” Further comments include “Stephen was acting on the other side to us and we were so impressed we asked him to help us on our next deal.”


Prior to joining Cooley in 2016, Stephen was at Olswang where he was previously Head of Corporate, London and Head of Private Equity and Venture Capital and a partner for 14 years.


  • Chester College of Law
    LSF, 1993
  • University of Leeds
    LLB, 1992

Lawyer Rankings

London > Corporate and commercial > M&A: lower mid-market deals, £50m-£500m

Variously praised for their ‘incredible work ethic, broad capabilities, and deep bench‘, Cooley (UK) LLP is highly rated for a multifarious sector focus that includes tech, life sciences, consumer goods, education, and media. Stephen Rosen chairs the London team, handling the full gamut of corporate transactions for a host of spin-outs, VC-funded ventures, and life sciences investors. Recent M&A highlights for ‘go-to’ London managing partner Justin Stock include financial services and online gaming deals, while the ‘outstanding’  Michal Berkner ‘s expertise in cross-border deSPACs and reverse mergers sees her advising on numerous strategic transactions across the worlds of consumer tech, biotech, and healthcare. Ben Shribman draws superlative praise from clients for his VC-backed M&A credentials.

London > Corporate and commercial > Private equity: transactions - mid-market deals (up to £250m)

(Hall of Fame)

Stephen RosenCooley (UK) LLP

Cooley (UK) LLP is well-known for its work in the technology sector, with the firm’s London private equity group acting for management teams and tech-focused PE houses on a range of transactions. The practice has a particular niche in advising on matters at the intersection of venture capital and private equity, such as co-investments between VC and PE funds. Stephen Rosen leads the team, as well as the overall corporate practice. He works alongside Ben Shribman, who is ‘skilled, expert, calm and accommodating’ and advises sponsors and portfolio companies on deals.

London > TMT (technology, media and telecoms) > Fintech

Cooley (UK) LLP handles the full gamut of issues that arise within the fintech sector, with a specific focus on private equity and venture capital investments. The practice, fronted by Stephen Rosen, is also recommend for handling data protection and cybersecurity issues for fintech clients. Other key names within the team include Guadalupe Sampedro, Chris Coulter and Ryan Naftulin.