Companies House UK - The official UK government register of UK companies.
International Association of Corporation Administrators- IACA - Professional association for government administrators of business entity and secured transaction record systems in their jurisdiction. Overview, sections, links to the offices of US and some international members.
Irish Companies Registration Office - Authority for incorporation of companies and the registration of business names in Ireland. Downloadable forms, legislation, price list, FAQs, and more in the "Doing business with us" section.
New Zealand Companies Office - Official government register for companies in New Zealand. Database with information on companies, directors, and security interests registered on motor vehicles, including filed documents. Free access to registry includes companies' name, status, and registered office.
