Pinsent Masons | 154,182 followers on LinkedIn. Pinsent Masons is a multinational law firm with a reputation for delivering high-quality legal advice rooted in its deep understanding of the sectors and geographies in which our clients operate. Our expertise is recognised globally. In recent years we have achieved more tier 1 rankings in The Legal 500 UK guide than any other firm, and been counted among the most innovative law firms in Europe and Asia Pacific by the Financial Times.