The finance directors of Britain's biggest companies are being polled on whether to take an official, public stance on Brexit ahead of the European Union membership referendum in June.
Finance chiefs from the Hundred Group, a deliberately low-profile organisation comprising finance directors of FTSE 100 and other major UK companies, are being questioned about their corporate and personal views on a Brexit scenario.
They are also being asked if they have begun to make plans for a decision to leave the EU and what the costs would be if Britain left the organisation, Sky News has reported.
Last week the Vote Leave campaign unveiled a list of 250 business leaders backing Brexit. However, two prominent entrepreneurs - David Ross, co-founder of Carphone Warehouse and John Caudwell, co-founder of Phones 4u - later denied signing off on their inclusion on the list.
Business leaders are coming under increasing pressure to choose a side as the referendum draws nearer. However, a number of other membership-based business organisations have found it tricky to take an official stance on Brexit.
John Longworth resigned as director-general of the British Chambers of Commerce (BCC) after he spoke in favour of Brexit at the beginning of March, which flouted the BCC's neutral stance on the issue.