SJ Berwin was a law firm that provided a wide array of services such as corporate finance, mergers and acquisitions, finance and financial services, intellectual property, investment funds, litigation, restructuring and insolvency, tax, private equity and real estate. The firm catered to the consumer, energy and infrastructure, life sciences and healthcare, private equity, technology, media and communication sectors. The firm was established in 1982 and is headquartered in London, United Kingdom. The firm was acquired by King & Wood Mallesons on November 1, 2013.