LONDON, Nov 2 (Reuters) - European venture capital firm Nauta has closed an early-stage fund specialising in business-to-business software at 190 million euros ($220 million), with the fund oversubscribed and above its 150 million euro target, it said on Tuesday. The close of Nauta’s fifth fund makes it the firm’s biggest and brings its assets under management to more than 550 million euros, it said in a statement, adding this made it one of Europe’s largest VC firms focusing on B2B start-ups. Nauta said it had already invested in 11 companies in Europe from the fund, including last-mile delivery company Gophr and employee well-being platform ifeel. Nauta has staff in London, Barcelona and Berlin. $1 = 0.8629 euros Reporting by Carolyn Cohn Editing by Mark Potter