Elon Musk’s SpaceX is reportedly lining up four Wall Street banks as it explores a potential stock market listing, in what could become one of the biggest IPOs of all time.

The company is said to be considering Bank of America, JP Morgan, Goldman Sachs and Morgan Stanley for leading roles, according to reports from the Financial Times and Reuters.

SpaceX has also been linked to discussions over a private share sale valuing the business as high as $800 billion, while Reuters reports it could seek to raise $25bn if an IPO goes ahead.