HMRC

http://www.hmrc.gov.uk

Business Link

http://www.businesslink.gov.uk

Bank of England

http://www.bankofengland.co.uk

Companies House

http://www.companieshouse.gov.uk/

Institute of Chartered Accountants in England & Wales

http://www.icaew.com

Department for Business, Innovation & Skills

http://www.bis.gov.uk/