Sarah Houghton > Mishcon de Reya LLP > London, England > Lawyer Profile

Mishcon de Reya LLP

Work Department

Dispute Resolution - Competition Law


Sarah is a partner in the firm’s dispute resolution department, specialising in UK & EU competition law.

She is experienced in acting for both claimants and defendants in complex, high-profile cases involving competition law based claims or defences. She advises on both strategic and legal issues associated with litigation, such as choice of forum and reputational issues.

Sarah represented Microsoft in its cartel damages claims against Sony, Samsung, Panasonic, Sanyo and LG Chem. Sarah also represented Sainsbury’s in its successful claim against MasterCard, the highest damages recovered in a European competition damages claim.

Sarah has also been advising two former directors of companies involved in separate investigations by the Competition and Markets in the construction and pharmaceuticals sector, for breach of competition warranties and aspects of individual liability. She assists businesses that find themselves under investigation by Competition Regulators, and those concerned about the way their affairs may have been conducted, e.g. attending dawn raids, advising on defence strategies and assessing potential civil liabilities.

Sarah regularly undertakes competition law audits and provides training and compliance materials to businesses. She also advises on the competition law aspects of transactions and commercial agreements, including ways to structure agreements and alter commercial behaviour to minimise competition law risks.


Partner, Mishcon de Reya LLP; Managing Associate, Mishcon de Reya LLP; Associate, DLA Piper UK LLP; Solicitor, Bell Gully


Kings College London (MA, EC Competition Law; University of Auckland, New Zealand (LLB (Hons), B.Com (Economics))

Lawyer Rankings

London > Dispute resolution > Competition litigation

(Leading individuals)

Sarah HoughtonMishcon de Reya LLP

With a standout practice for claimant side competition litigation, Mishcon de Reya LLP is the go-to firm for a number of large UK businesses including Asda, John Lewis and Sainsbury’s. Practice head Sarah Houghton is acting in a claim against BT for a Chapter II Competition Act breach that affected over two million customers, and Ben Lasserson, who ‘goes the extra mile’, has been advising on follow-on damages claims in relation to the Trucks Cartel (and is also leading a privacy opt-out representative action on behalf of a class of 1.6 million individuals against Google and DeepMind Technologies regarding the unlawful transfer of medical records). The competition litigation team also provides an excellent ‘quality of service’ and continues to develop, with associates Zachery O’Brien and Gwen Ballin-Reeler praised at the junior end.

London > Corporate and commercial > EU and competition

Proficient in a range of cross-jurisdictional merger control filings and CMA-driven investigations, Mishcon de Reya LLP is noted for its capabilities in the online and fast-growth tech sectors. The practice is headed up by contentious specialist Sarah Houghton , while the prolific transactional partner  Neil Baylis is a highly experienced adviser to a range of financial services institutes, gaming companies, and trade associations, to name a few.  Managing associate Gwen Ballin-Reeler’s recent instructions encompasses tech, retail, and agriculture.