Keystone Law Group plc is a technology-enabled, full-service law firm listed on the AIM market of the London Stock Exchange that provides bespoke legal advice to businesses and individuals through a network of over 400 experienced lawyers operating via proprietary technology and flexible working practices. The firm offers a comprehensive range of legal services including banking and finance; capital markets; commercial contracts; commercial property; construction and projects; corporate; corporate investigations; data protection; dispute resolution; employment; EU and competition law; expatriate tax and legal services for US nationals; family and matrimonial; fraud and financial crime; global mobility tax service; immigration; insurance; intellectual property; international arbitration; investment funds and management; licensing; mediation and ADR; pensions and incentives; planning and environment; probate and estate planning; professional discipline and regulatory; property litigation; residential property; restructuring and insolvency; tax; and technology. Founded in 2002 and headquartered at 48 Chancery Lane in London, United Kingdom, Keystone Law primarily operates in the UK with services extending to clients worldwide across more than 50 industry sectors. In November 2025, the firm strengthened its capabilities by appointing 18 new partners across key practice areas such as intellectual property, corporate, employment, technology, commercial property, aviation, immigration, planning, banking and finance, and property litigation, enhancing its expertise in sectors including aviation finance, brand protection, renewable energy, digital regulation, and planning law.