International Intergovernmental Organisations

World Intellectual Property Organisation (WIPO) - www.wipo.int 

World Trade Organization (WTO) - www.wto.org

WTO Webpage on TRIPS - www.wto.org/english/tratop_e/trips_e/trips_e.htm

WTO Webpage on TRIPS and Public Health - www.wto.org/english/tratop_e/trips_e/pharmpatent_e.htm

International Union for the Protection of New Varieties of Plants - www.upov.int 

The Trilateral Cooperation (Of the EU, US and Japanese Patent Offices) - www.trilateral.net

Regional Organisations

African Intellectual Property Organisation (OAPI) - www.oapi.wipo.net

African Regional Intellectual Property Organisation (ARIPO) - www.aripo.org

Eurasian Patent Organisation (EAPO) - www.eapo.org

European Patent Office (EPO) - www.epo.org 

Patent Office of the Cooperation Council for the Arab States of the Gulf (GCCPO) - www.gccpo.org 

European Office for Harmonization in the Internal Market (OHIM) - www.oami.europa.eu 

National IP Offices

See: WIPO Directory of Intellectual Property Offices - www.wipo.int/directory/en/urls.jsp

Non-Governmental Intellectual Property Organisations

International Association for the Protection of Intellectual Property (AIPPI) - www.aippi.org

AIPPI Directory of Intellectual Property Organisations and Offices - www.aippi.org/links/index.htm

Asian Patent Attorneys Association (APAA) - www.apaaonline.org

European Communtities Trade Mark Association (ECTA) - www.ecta.org

Asociaçion Interamericana de la Propiedad Industrial (AISIPI) - www.asipi.org

International Association for the Advancement of Teaching and Research in Intellectual Property (ATRIP) - www.atrip.org

Institute of Professional Representatives before the European Patent Office (EPI) - www.patentepi.com 

European Patent Lawyers Association (EPLAW) - www.eplaw.org

Fédération Eurpéenne des Mandataires de l'Industrie en Propriété Industielle (FEMIPI) - www.femipi.org

Fédération Internationale des Conseils en Propriéte Industrielle (FICPI) - www.ficpi.org

International Anti-Counterfeiting Coalition (IACC) - www.iacc.org

International Intellectual Property Society (IIPS) - iipsny.org 

International Trademark Association (INTA) - www.inta.org

Intellectual Property Owners Association (IPO) - www.ipo.org

The Association of European Trade Mark Owners (MARQUES) - www.marques.org

Pharmaceutical Trade Marks Group (PTMG) - www.ptmg.org

Union of European Practitioners in Industrial Property  (UNION) - www.union-eu.com