Yonatan Stern is a serial entrepreneur and angel investor. After completing his army service, he founded Rosh Intelligence Systems along with friends. With Yonatan as CEO, Rosh developed artificial intelligence tools to help field service engineers diagnose, fix and maintain complex technological equipment. In 1993, Yonatan left Rosh to found CardScan, a company that sold a small scanner designed to scan and read business cards while automatically building a searchable address book on a PC. In 2006, CardScan was sold to DYMO, which is still selling CardScans today. In 2000, Yonatan founded ZoomInfo to explore the possibility of crawling the internet in order to extract information about people and companies from free text. It spun another company to shareholders, called Bizo, which allowed targeting advertising. In 2014, Bizo was acquired by LinkedIn for $175 Million. In 2017 ZoomInfo was acquired by Private Equity group Great Hill Partners for $240 Million. After the acquisition, he stayed on as CEO and Chief Scientist of ZoomInfo until August 2018, at which point he stepped down to focus on YLabs initiatives and remained a shareholder and board member. Six months later, in February of 2019, ZoomInfo was acquired again, this time by its biggest competitor DiscoverOrg. Yonatan then moved to build the SmartUp Academy, where he invests and teaches founders the profession of building a company. The SmartUp Academy companies, now include: https://bioforum.org.il/en/ https://tickchak.co.il/ https://sogomatic.com/ https://inteli-chain.com/ https://www.clinical.site/ https://opster.com/