National (portuguese)

• OTOC - Order of Certified Accountants
• OROC - Order of Chartered Accountants
• CNC - Accounting Standards Committee
• DGI - Tax Authorities
• SS - Social Security
• IAPMEI - Institute for Support to Small and Medium Enterprise
• Bank of Portugal
• ACT - Authority for Working Conditions
• Company Portal
• RNPC - National Register of Companies
• APOTEC - Portuguese Association of Accountant Technical
• APECA - Portuguese Association of Accounting Companies

Internationals

• IFAC - International Federation of Accountants
• IASB - International Accounting Standards Committee
• FEE - Fédération des Experts Comptables