The International Academy of Cytology (IAC) serves as an umbrella organization for many national societies of cytology around the world
A national cytology society representing the interest of its majority of medical members (for example pathologist, cytopathologist) may request affiliation with the International Academy of Cytology by letter of request signed by the responsible officer of said national society. The society must be nationally registered and have a constitution. The Board of Directors of Academy by majority vote decides on acceptance of this request.
A national editor is appointed by each national society to serve as a liaison officer between the editor of ACTA and the respective society.

Argentina
Sociedad Argentina de Citologiá
Australia
Australian Society of Cytology
Austria
Österreichische Gesellschaft für Zytologie
Belgium
Belgian Society of Pathology, Working Group Cytology
Brazil
Sociedade Brasileira de Citopatologia
Britain
British Association for Cytopathology
Canada
The Canadian Society of Cytology / Société Canadienne de Cytologie
Colombia
Asociacion Colombiana de Patologia, Section Cytopathology
Croatia
Croatian Society for Clinical Cytology
Czechia
Czech Society for Clinical Cytology
Denmark
Danish Pathology Society
FInland
Suomen Kliinisen Sytologian Yhdistys
France
Société Française de Cytologie Clinique
Germany
Deutsche Gesellschaft für Zytologie
Greece
Hellenic Society of Clinical Cytology
Hong Kong
Hong Kong Society of Cytology (A division of the HKIAP)
Hungary
Magyar Pathologusok Tarsasaga Cytodiagnosztikai Sectio
India
Indian Academy of Cytologists
Iran
Iranian Society of Clinical Cytology
Italy
Società Italiana di Anatomia Patologica e Citodiagnostica IAP Italian
Italy
Società Italiana di Citologia (SICi)
Japan
Japanese Society of Clinical Cytology
Kazakhstan
Kazakhstan Association of Clinical Cytologists
Korea
Korean Society for Cytopathology
Malaysia
Malaysian Society of Cytology
Mexico
Academia Mexicana de Citopatología
Norway
Norsk Forening for Klinisk Cytologi
Paraguay
Sociedad Paraguaya de Patologicia y Citologia
Poland
Polish Society of Pathologists, Cytology Section
Portugal
Sociedade Portuguesa de Citologia
Romania
Romanian Society of Cytology
Russia
Russian Association of Clinical Cytology
Singapore
Singapore Society of Cytology
Slovenia
Slovenian Society of Clinical Cytology
South Africa
Suid-Afrikaanse Vereniging vir Kliniese Sitologie
Sweden
Svensk Förening fö Klinisk Cytologi
Switzerland
Schweizerische Gesellschaft für Zytologie/Societé de Cytologie
Taiwan
Taiwan Society of Clinical Cytology
Turkey
Turkish Society of Cytopathology
Uruguay
Sociedad Uruguay de Citologia