British Chambers of Commercehttp://www.britishchambers.org.uk

Sheffield Chamber of Commerce and Industry http://www.scci.org.uk

Barnsley and Rotherham Chamber of Commerce http://www.brchamber.co.uk

Mid Yorkshire Chamber of Commerce http://www.mycci.co.uk

Leeds, York and North Yorkshire Chamber of Commerce http://www.lynycc.co.uk

Hull and Humber Chamber of Commerce http://www.hull-humber-chamber.co.uk

Doncaster Chamber of Commerce and Enterprise http://www.doncaster-chamber.co.uk

Bradford Chamber of Commerce http://www.bradfordchamber.co.uk