Yonatan Stern

Angel Investor Active Israel
Visit website ↗ LinkedIn
Last updated 2026-06-18
Portfolio
0
in our dataset
Rounds participated
0
Rounds led
0
Rounds' value
—
total disclosed, rounds participated
Stages
A Round, Seed, Pre-Seed

About

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/

Portfolio

No portfolio companies in this dataset yet.

Q&A

What is Yonatan Stern's primary role and focus today?
Yonatan Stern is a serial entrepreneur and angel investor. He currently focuses on building the SmartUp Academy, where he invests in and teaches founders the profession of building a company.
What notable companies has Yonatan Stern founded and exited?
Yonatan Stern founded CardScan, which was sold to DYMO in 2006. He also founded ZoomInfo, which was acquired by Great Hill Partners for $240 million in 2017, and later by DiscoverOrg in 2019. Another company spun from ZoomInfo, Bizo, was acquired by LinkedIn for $175 million in 2014.
What is Yonatan Stern's background in entrepreneurship?
Yonatan Stern co-founded Rosh Intelligence Systems, developing artificial intelligence tools. He then founded CardScan in 1993 and ZoomInfo in 2000, both of which had successful exits.
What is the investment stage focus for Yonatan Stern?
Yonatan Stern invests in Pre-Seed, Seed, and A Round stages.
What is the typical investment range for Yonatan Stern?
Yonatan Stern's investment range is typically between $100K and $5M.
Where is Yonatan Stern based?
Yonatan Stern is based in Israel.
Can you name some of the companies currently associated with SmartUp Academy, founded by Yonatan Stern?
Some companies associated with SmartUp Academy include Bioforum, Tickchak, Sogomatic, Inteli-chain, Clinical.site, and Opster.
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