A boutique investment bank started in the UK four years ago increased its revenues by more than 500% in 2018, after landing a place on a flurry of big-ticket mergers and acquisitions.

LionTree Advisors, a US-headquartered independent bank focused on the telecoms, media and technology industries, made £49.5m in revenues in its UK business in the 12 months to March 31, according to accounts filed at Companies House. This is up from £7.8m for the same period last year – a 536% increase.