• International Group of Acountancy Firms
• International Tax Planning Association
• Bloomberg
• Instituto de Auditores-Censores Jurados de Cuentas de España
• Instituto de Contabilidad y Auditoría de Cuenta
• Goldwyns
• Garbema.Grupoga
• American Institute of Certified Public Accounts
• Financial Accounting Standars Board
• International Accounting Standars Board
• US/UK Tax Advisors