- Alliance & Leicester Group Harpenden
- Bank of Ireland Harpenden
- Barclays Bank plc Harpenden
- Co-operative Bank plc Harpenden
- Halifax plc Harpenden
- HSBC Bank plc Harpenden
- Lloyds TSB Bank Plc Harpenden
- National Westminster Bank/NatWest Harpenden
- Nationwide Building Society Harpenden
- Omnicash Harpenden
- Royal Bank of Scotland Harpenden
- Sainsburys Bank Harpenden
- Santander Harpenden
- YourCash ATM Systems Ltd Harpenden