• Apostillelegalservice posted an update 4 months, 2 weeks ago is a leading apostille authentication and embassy legalization agency, serving clients from China, the U.S., the U.K., South Korea, Spain and more than 200 countries. Whether you work for a multinational corporation, a government research institute an import and export trading company or are an international student studying abroad, they are committed to helping you secure your Apostilles and Embassy Certificates in an efficient and cost-effective way while you stay in the comfort of your home.