Zohar Zisapel

An Israeli entrepreneur, businessman, philanthropist, and angel investor, co-founder of the RAD Group, known for pioneering Israel's high-tech industry.

Angel Investor Tel Aviv, Israel Est. 1981
Last updated 2026-07-20
Portfolio
1
in our dataset
Rounds participated
2
Rounds led
0
Rounds' value
$30.0M
total disclosed, rounds participated
Stages
Pre-Seed, Seed, Series A, Series B, Series C

About

Zohar Zisapel (1949-2023) was a prominent Israeli entrepreneur, businessman, and philanthropist, widely recognized as a "founding father" of Israel's high-tech industry. He co-founded the RAD Group with his brother Yehuda Zisapel in 1981, an umbrella organization that spawned over 20 independent high-tech companies in telecommunications and networking, including Radware, Ceragon Networks, RADCOM, and Silicom. Zisapel was also an active angel investor, focusing on sectors like cybersecurity, autonomous vehicles, and AI, with notable investments in companies such as Wiz, Adallom, Talon Cyber Security, Argus, and Innoviz. He was known for his philanthropic efforts, particularly in advancing technological education for underprivileged youth and supporting digital medicine initiatives through the RAD Biomed incubator. Zisapel passed away in May 2023 at the age of 74.

Portfolio · 1

Argus Cyber Security
A global leader in automotive cybersecurity, providing end-to-end solutions that protect vehicles, components, and fleets from evolving cyber threats.
2 rounds $30.0M committed Latest: 2015-09

Q&A

What is Zohar Zisapel's primary investment focus?
Zohar Zisapel primarily focused on investing in promising tech companies, particularly in autonomous vehicles, AI, cybersecurity, and medical research.
What investment stages did Zohar Zisapel typically participate in?
Zohar Zisapel participated in Pre-Seed, Seed, Series A, Series B, and Series C investment stages.
Which geographies did Zohar Zisapel prefer for investments?
Zohar Zisapel preferred to invest in companies located in Israel and the United States.
Can you name some of Zohar Zisapel's notable portfolio companies?
Zohar Zisapel's notable portfolio companies include Hailo and Innoviz.
What sectors did Zohar Zisapel prefer for investments?
Zohar Zisapel preferred sectors such as Automotive & Mobility Technologies, Cyber Security, Health Tech & Life Sciences, Business Software, Industrial Technologies, and Operations Solutions.
What was Zohar Zisapel's role beyond investing?
Beyond investing, Zohar Zisapel often took an active role as a board member and mentor to portfolio companies.
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)

Identifiers & details

Founded1981

Radar intelligence

Patents

EPO1