SciTech DiploHub, the Barcelona Science and Technology Diplomacy Hub, is a pioneering nonprofit public-private partnership backed by leading research centers, universities, non-profits, startups, corporations and public institutions that positions Barcelona as a global lab in science diplomacy for governments and cities around the world. It has the mandate to elevate the role of science, technology and cities in foreign policy and make Barcelona a more influential player on the global stage by representing its knowledge and innovation ecosystem worldwide. SciTech DiploHub is in charge of managing Barcelona Alumni: the global network of high-achieving scientists, researchers, technology experts and innovation leaders trained in Barcelona and based abroad. Barcelona's top global talent is a crucial element of its science diplomacy strategy, they are intercultural communicators, ambassadors of the city’s knowledge ecosystem and education, business, and trade promoters. Barcelona Alumni currently has more than 1,000 members from over 30 countries.