Bacs is wholly owned by some of the UK and Europe's leading banks and building societies.  

• Abbey
• Alliance & Leicester Commercial Bank
• Bank of England
• Barclays Bank
• Coutts & Co
• Clydesdale
• Danske Bank
• HBOS (Halifax and Bank of Scotland)
• HSBC Bank plc
• Lloyds TSB Bank
• Nationwide Building Society
• NatWest
• Northern Rock
• The Co-operative Bank
• The Royal Bank of Scotland 

N.B. Coutts, NatWest and The Royal Bank of Scotland are all part of The Royal Group.