Mednarodne institucije
Poštni regulatorji držav članic EU
- Rundfunk & Telekom Regulierungs (RTR) (Avstrija)
- Belgian Institute for Postal Services and telecommunications (BIPT) (Belgija)
- Communications Regulaton Commission (CRC) (Bolgarija)
- Office of the Commissioner of Electronic Communications and Postal Regulation (Ciper)
- Czech Telecommunication Office (CTU) (Češka)
- Postal Supervisory Department (Danska)
- Estonian Competition Authority (Estonija)
- Finnish Communications Regulatory Authority (Finska)
- Autorité de régulation des communications électroniques, des postes et de la distribution de la presse (Arcep) (Francija)
- Hellenic Telecommunications & Post Commission (EETT) (Grčija)
- Hrvatska regulatorna agencija za mrežne djelatnosti (HAKOM) (Hrvaška)
- L'Autoritŕ per le Garanzie nelle Comunicazioni AGCOM (Italija)
- Commission for Communications Regulation (ComReg) (Irska)
- Public Utilities Commission (PUC) (Latvija)
- Communications Regulatory Authority of the Republic of Lithuania (RRT) (Litva)
- Institut Luxembourgeois De Regulation (ILR) (Luksemburg)
- National Media and Infocommunications Authority (NMHH) (Madžarska)
- Malta Communications Authority (Malta)
- Bundesnetzagentur (Nemčija)
- Authority for Consumers & Markets (ACM) (Nizozemska)
- Office of Electronic Communications (Poljska)
- Autoridade Nacional De Comunicaoes (ANACOM) (Portugalska)
- Autoritatea Naţională pentru Administrare şi Reglementare în Comunicaţii (ANCOM) (Romunija)
- Regulatory Authority For Electronic Communications And Postal Services (Slovaška)
- La Comisión Nacional de los Mercados y la Competencia (CNMC) (Španija)
- The Swedish Post and Telecom Authority (PTS) (Švedska)
- Independent regulator and competition authority for the UK communications industries (OFCOM) (Velika Britanija)