Scottish independence: Business for and against
27 August 2014 Last updated at 09:20 BST
The bosses of more than 130 businesses have signed a letter saying the business case for Scottish independence "has not been made".
One of those signatories was chief executive of the Weir Group Keith Cochrane, who told BBC Breakfast that the uncertainty over economic issues was hurting businesses.
But pro-independence group Business for Scotland dismissed the concerns, and their chairman Tony Banks said that the business leaders' letter did not represent the majority of small and medium size businesses.
Scotland will go to the polls in the referendum on 18 September.