- Association for Financial Markets in Europe (AFME) & British Bankers' Association (BBA)
- Bates White Economic
- BEPS Monitoring Group (BMG)
- Chartered Institute of Taxation (CIOT)
- Consultative Committee of Accountancy Bodies (CCAB) - Ireland
- Deloitte LLP
- Digital Economy Group: Baker & McKenzie LLP
- European Banking Federation (EBF)
- Greenwich for FFtélécoms
- GSM Association (GSMA)
- Informa Group plc
- International Bar Association (IBA)
- International Bureau of Fiscal Documentation (IBFD)
- Japanese commentator (anonymous)
- Solocal Group
- Swiss Banking
- WTS Tax Legal Consulting
Bron: OECD