Those who have not had the whip restored are Guto Bebb, Ken Clarke, David Gauke, Justine Greening, Dominic Grieve, Philip Hammond, Oliver Letwin, Anne Milton, Antionette Sandbach, and Rory Stewart.
Amber Rudd would need to apply to have the whip restored as she resigned the whip herself.
Guto Bebb, Ken Clarke, Justine Greening, Dominic Grieve, Philip Hammond, Antoinette Sandbach voted for Stella Creasy’s amendment earlier this evening to make it easier to put forward amendments to Boris’ bill.
Former Minister for the Cabinet Office, Damian Green, tweeted: “Delighted that ten good colleagues are rejoining the Parliamentary Conservative Party. Still hope for more.”
A Conservative spokesman said Boris Johnson met with 10 of the 21 rebels in his Commons office on Tuesday evening.
He was said to have told them he always wanted to find a way for them to rejoin the party, and the 10 MPs accepted his offer to be readmitted.
“They have had the whip offered back to them, they have accepted the whip: they are Conservative Members of Parliament with the Tory whip,” the spokesman added.
He said the decision was not a comment on the other 11 who have not had the whip restored.
It comes as the Government seeks backing for its Bill to trigger an early general election.
Mr Johnson’s legislation cleared its first Commons hurdle without a formal vote, but Deputy Speaker Sir Lindsay Hoyle selected a Labour amendment for a general election on December 9.
The Government is pushing for an election on December 12.
Labour earlier announced its conditions to back an election – centred around ruling out a no-deal Brexit – had been met.