Nicholas Usher is a leading international corporate lawyer, with more than 25 years of experience advising a range of clients on M&A and finance transactions, as well as day-to-day corporate activities. He is head of the London office of the international law firm Winston & Strawn LLP. Nicholas led the Winston team awarded "M&A Team of the Year" by Legal Week in 2016. He is also recognised as a leading practitioner in The Legal 500 Mergers & Acquisition section. Additionally, IFLR1000 recognised Nicholas as "highly regarded" within the UK for Capital Markets: Equity and M&A in 2019 and 2020.

Nicholas is recognised as a leading mergers and acquisitions practitioner in the UK and has represented many clients on a variety of mergers and acquisition and securities transactions, including: AAR Corp., Motorola Solutions, Inc., Beam Suntory, Groupon, Inc., Lear Corporation, CPI Card Group, Kellogg Company, Morningstar Inc., UL LLC (Underwriters Laboratories), Federal-Mogul Corporation, and Maximus, Inc.

He represents private equity and venture capital funds with respect to portfolio investments and buyout transactions. His private equity work has included representing Argand Partners, Baird Capital Partners, Century Park Capital Partners, Booth Creek Management Corporation, and Parallel49 Equity.