Stephen Kosmin > Chambers of James Goudie KC and Daniel Stilitz KC > London, England > Barrister Profile
11KBW Offices
11KBW
11 KING'S BENCH WALK
TEMPLE, LONDON
EC4Y 7EQ
England
- Set Profile
- Go to...
Stephen Kosmin
Position
Stephen is highly regarded in administrative and public law, public procurement, financial services, and information and data protection law.
Stephen has considerable experience in complex and high-profile judicial reviews, particularly in commercial and financial services disputes. He appears frequently in the Supreme Court, Court of Appeal and High Court. Recently, he has been instructed by the Prime Minister, various central government departments, local authorities, the Financial Ombudsman, HMRC, the FSCS, and the Bank of England, as well as private clients. Stephen is a member of the Attorney General’s A Panel.
In his procurement practice, Stephen is instructed by both authorities and bidders. Recent cases include James Waste v Essex County Council (concerning modifications to procured contracts), R (Good Law Project) v Prime Minister (a challenge to the award of Operation Moonshot contracts during the pandemic), Alstom v Network Rail (a challenge to the £1.8bn contract for signalling on the East Coast Main Line) and Altiatech v Birmingham City Council (concerning limitation and declarations of ineffectiveness).
Stephen is also a recognised expert in the field of information and data protection law, acting for a range of private and public sector clients on FOIA, GDPR, and DPA issues. Stephen has been instructed on several leading cases concerning mass data breaches, including Prismall v Google and Ticketmaster.
Career
Called to the Bar in 2011. Admitted as an Attorney to the New York Bar, 2011 (currently non-practising).
Lawyer Rankings
London Bar > Administrative law and human rights
(Leading Juniors)Ranked: Tier 4Stephen Kosmin –11KBW
‘A fantastic legal brain, who is sharp on the details and good with strategy and tactics.’
‘A very solid and highly reputable set for administrative law‘, 11KBW‘s team is equally strong in handling complex, high-profile human rights cases, with members appearing before the European Court of Human Rights; Jason Coppel KC counts human rights work as a key pillar of his practice. Joanne Clement KC is ‘a go-to counsel for complex and high-value public law disputes‘ with ‘superb knowledge of human rights‘. At the junior end of chambers, the ‘industrious‘ Christopher Knight represented the Advocate General for Scotland before the Supreme Court in Reference by the Lord Advocate of Devolution Issues under the Scotland Act 1998, involving a devolution reference under Schedule 6 of the Act as to whether the Scottish Parliament had the legislative competence to make provision for a second referendum for independence. Stephen Kosmin is appearing in SSWP v AT, a case concerning whether EU nationals with pre-settled status in the UK are entitled to welfare benefits due to the EU Charter of Fundamental Rights. Clive Sheldon KC, as was, was appointed a High Court Judge in February 2024.
London Bar > Data protection
(Leading Juniors)Ranked: Tier 3Stephen Kosmin – 11KBW ‘Stephen is highly intelligent and has strong analytical skills.’
London Bar > Financial services regulation
(Leading Juniors)Ranked: Tier 3Stephen Kosmin –11KBW ‘Stephen is great to work with. He has tremendous knowledge and is very creative, coming up with strategies that other people wouldn’t think of and that make a big difference.’
London Bar > Public procurement
(Leading Juniors)Ranked: Tier 2Stephen Kosmin – 11KBW ‘Stephen is a natural advocate. He has a strong legal mind and his analysis is crystal clear.‘
London Bar > Local government (including rating law)
(Leading Juniors)Ranked: Tier 3Stephen Kosmin – 11KBW ‘Very bright, extremely well prepared and the safest pair of hands.’