More than 50 business leaders signed a letter to be published in the Sunday Times on Sunday calling for a second vote on the British secession, Sky News reported on Saturday.
Among the signatories to the speech are the CEO of Waterstone Libraries, and the CEO of Sainsbury Justin King.
The source told Sky News that the letter would warn that Britain's proposals for secession negotiated by Britain and the European Union would not produce smooth business dealings with Britain after it left the European Union in March.
