Yossi Vardi

Angel Investor Active Israel
Last updated 2026-06-18
Portfolio
7
in our dataset
Rounds participated
8
Rounds led
0
Rounds' value
$4.5M
total disclosed, rounds participated
Stages
A Round, Pre-Seed, Seed

About

Dr.Yossi Vardi was born in 1942 in Israel. He isone of Israels early entrepreneurs. Mr. Vardi co-founded, led, funded and helped build more than 85 high-tech companies in diverse areas of software, energy, internet, mobile, electro-optics, clean water and others. Today he is the co-founder & serves as board observer at Wefi and he also a chairman at 4YFN. In 1996 he became the founding investor of Mirabilis- the creator of ICQ, which is the first Internet-wide Instant messaging. In 1969, Vardico-founded and was the first CEO of Tekem.He also co-founded Alon oil company, ITL (International Laser Technologies), Granite Hacarmel & others. Vardi was chairman of the board of trustees of Jerusalem Foundation, serves on the board of trustees of the Technion and served on those of Weitzman Institute, The Hebrew University & The Open University .He was advisor to the World Bank, United Nations Development Program , CEOs of Amazon, AOL, Siemens-Albis, and Alliedsignal. Vardi was member of the World Economic Forum, and Co-chairman of the EU-Israel business dialogue. Vardi also holds extensive government and public experience. He was the director general of Ministry of Development and Ministry of Energy and served as chairman of Israel National Oil Company, and Israel Chemicals.

Portfolio · 7

Investment activity

2 portfolio exits on record.

Portfolio by sector

Business Software6
Media & Entertainment Technologies1

Q&A

What is Yossi Vardi's primary investment focus by stage?
Yossi Vardi primarily invests in A Round, Pre-Seed, and Seed stage companies.
Which sectors does Yossi Vardi concentrate his investments in?
Yossi Vardi's portfolio shows a concentration in Business Software, with 6 companies, and Media & Entertainment Technologies, with 1 company.
Can you name some notable portfolio companies of Yossi Vardi?
Yossi Vardi's notable portfolio companies include Similarweb, a web analytics and competitive intelligence platform, and Overwolf, an in-game creators' guild.
Has Yossi Vardi had any significant exits recently?
Yes, Yossi Vardi had a significant exit in May 2021 when portfolio company Similarweb went public on the NYSE with a valuation of $1.65B.
What was Yossi Vardi's role in the founding of Mirabilis?
Yossi Vardi was the founding investor of Mirabilis in 1996, the company that created ICQ, the first Internet-wide Instant Messaging service.
What is Yossi Vardi's background in entrepreneurship?
Yossi Vardi is an early Israeli entrepreneur who co-founded, led, funded, and helped build more than 85 high-tech companies. He co-founded Tekem in 1969 and has been involved in diverse areas including software, energy, and the internet.
What is Yossi Vardi's current involvement in the tech ecosystem?
Yossi Vardi currently serves as a board observer at Wefi and is the chairman at 4YFN.
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