The chairman of Ernst & Young (E&Y) Abogados in Spain Joan Costa has left to join opposition political party Partido Popular (PP).
Costa will coordinate the party’s strategy for the next general election, while Víctor Gómez de la Cruz, the firm’s managing partner, will take over Costa’s role.
Costa first joined E&Y in 1990, but spent much of that decade in government. During this time he was minister for science and technology, as well as secretary of state for business and tourism.
E&Y Abogados is the tenth-largest firm in Spain with a turnover of 45.7m (£30.7m), growing by 1m (£671,700) this year. Rival law and accountancy practice KPMG beat it to the number nine spot, posting a revenue rise of more than 7m (£4.7m) to hit 46.6m (£31.3m).