ILFB's client list extends to both the public and private sectors and includes:
- Axa IM
- Apple
- Clifford Chance
- The Cabinet Office
- The Compass Group
- Bank of Canada
- Etam
- Euroclear
- First Chicago Bank
- The Department for International Development
- The Home Office
- The Department for the Environment
- The Health and Safety Executive
- The Office of Rail Regulation
- The Department for Transport
- The Dian Fossey Gorilla Fund Europe
- Saferworld
- Christies
- PricewaterhouseCoopers
- Thomas Pink
- SSP France
- SSP International
- Klepierre – Banque Nationale de Paris