Authorities:

College of Arms

Societies and Partners

Croatian Heraldic and Vexillologic Association

Czech Vexillological Society

The Flag Institute, London

Greek Heraldry Society

Heraldika d.o.o., Slovenia

Herold Heraldry and Vexillology Society, Slovenia

Macedonian Heraldry Society, Skopje

Milosh Obilich Society of Serbian Armigers

PRO HERALDICA Deutsche Forschungsgesellschaft für Heraldik und Genealogie mbH

Schweizerische Heraldische Gesellschaft - Société Suisse d'Héraldique - Società Svizzera di Araldica

Slovak Genealogical-Heraldic Society

Societas Heraldica Scandinavica

Svenska Heraldiska Föreningen

Ukrainian Heraldry Society

Specialized Websites

FOTW - Flags of the World

A World of Flags Enciclopedia Storica Vessillologica

The Armorial Register Limited - International Register of Arms

Flags and Arms of the Modern Era