Unsurprisingly, Real Madrid and Barcelona have never been relegated from Spain’s highest division. As well as Athletic Bilbao.
Italy
Internazionale is the only team from Serie A, which has never been relegated.
France
From ligue 1 it's PSG which has never formally been relegated.But it's a bit complicated. The team in 1972 has split into two. One branch joined CA Montreuil and continued in the first division under the name of Paris FC, while PSG had to restart in the third division. PSG returned to first division in 1973-74 and has never looked back since.
England
Since the start of the Premier League in 1992, seven clubs have never been out of PL: Arsenal, Liverpool, Aston Villa, Manchester United, Everton, Tottenham Hotspur and Chelsea.
However, there are no English clubs currently in existence that have never been relegated from the country’s top division. Arsenal are the team with the longest run since they were last relegated.
