Corporate donors
- AIG Europe Limited
- Airbus
- Allen & Overy
- AstraZeneca
- BAE Systems
- Barclays Bank
- BDO Global
- BHP Billiton
- Boeing
- BP International Limited
- BT plc
- Cargill
- Centrica
- Clifford Chance
- The Economist
- Equinor
- Fidelity
- Ford
- Gilead Sciences International
- GSK
- Goldman Sachs
- HSBC
- IBM
- International Paper
- Invesco
- JP Morgan
- Kingfisher
- KPMG
- Lloyds Banking Group
- Lockheed Martin
- Macro Advisory Partners
- Microsoft
- Montrose Associates
- Morgan Stanley
- MSD
- Rothschild & Co
- Nomura
- PricewaterhouseCoopers LLP
- Qualcomm
- SecureValue Consulting Limited
- Shell
- Siemens AG
- Teneo
- Vanguard
- Vodafone
- Beat Wittmann
Corporate donors: Transparency document 2018-19