Gusbourne PLC is a UK-based producer and distributor of English sparkling wines, operating through its various subsidiaries. The company owns over 200 acres of vineyards in Kent and West Sussex and has been in operation since 2012. Formerly known as Shellproof Plc, the company rebranded as Gusbourne PLC in 2013. Headquartered in Ashford, Gusbourne PLC specializes in the production and sale of high-quality English sparkling wines.