The largest law firms and legal practices in the United Kingdom, measured by total annual revenue, lawyer headcount, and global partner count, include the elite "Magic Circle" firms—such as Clifford Chance, Allen & Overy (A&O Shearman), Freshfields Bruckhaus Deringer, Linklaters, and Slaughter and May—alongside massive international commercial giants like DLA Piper, CMS, and Eversheds Sutherland. These institutions generate hundreds of millions or billions of pounds annually advising global corporations and financial institutions.