athens-startup
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Prosperty
Prosperty is a Greek proptech company that digitizes the full real estate lifecycle - buying, selling, renting and managing property - through an end-to-end, tech-enabled platform. Founded in Athens in 2020, it combines property data, virtual tours, drone imagery, legal and technical checks, mortgage support and portfolio management tools to serve both individual consumers and institutional players such as banks, asset managers and developers. Its B2C platforms draw over 800,000 monthly visitors and host more than 12,000 active listings, and in April 2025 it closed a EUR 5.5M Series A led by Eurobank, which took a 25% stake in Prosperty RE Ltd.
100mentors
100mentors is an Athens-based company that helps organizations adopt generative AI - with people, not just tools, at the center. Founded in 2015 as an on-demand mentorship platform that connected 21,000+ students across 17 countries with 2,500+ mentors from top universities and companies, it pivoted with the rise of generative AI into an enterprise partner offering AI upskilling bootcamps (GenAI Academy), an AI-powered meeting tool (Wiserwork), and the GenAI Summit, positioned as one of Europe's largest generative-AI leadership conferences.
Yiorgos Nikoletakis
Yiorgos Nikoletakis is the co-founder and CEO of 100mentors, an Athens- and San Francisco-based edtech company that started as a platform connecting young people with mentors worldwide and has since pivoted into generative-AI skilling for organizations. A Fulbright scholar with degrees from AUEB, Ohio State, and Columbia, he describes his job as teaching people to ask better questions, use GenAI well, and keep humans in the loop. His personal motto: arguing like he's right, listening like he's wrong.