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
9
in our dataset
Rounds participated
17
Rounds led
6
Rounds' value
$926.5M
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 · 9

AuthMind Inc.
Identity security platform that protects identity infrastructure and prevents cyberattacks for enterprise IT security teams.
1 round $9.0M committed Latest: 2023-09
Hailo
Hailo is a leading manufacturer of top-performing AI processors, designed to run advanced Machine Learning applications on the edge.
Led ★ 4 rounds $217.0M committed Latest: 2021-10
Shlomo Group
One of the largest investments and holdings groups in Israel, operating in automotive, real estate, telecom, insurance, shipyards, and logistics sectors.
Led ★ 1 round $136.0M committed Latest: 2021-10
Innoviz Technologies
A leading supplier of high-performance, automotive-grade LiDAR sensor platforms that bring vision to the automotive, security, drone, robotics, and mapping industries.
Led ★ 4 rounds $504.0M committed Latest: 2020-12
Foretellix
Foretellix provides a data automation platform for AI-powered autonomous vehicle stacks.
Led ★ 1 round $1.5M committed Latest: 2018-03
Armis
Armis is a cyber exposure management and security company that protects the entire attack surface and manages an organization's cyber risk exposure in real time.
Led ★ 1 round $5.0M committed Latest: 2016-01
Argus Cyber Security
A global leader in automotive cybersecurity, providing solutions to protect connected vehicles and fleets from cyber threats.
Led ★ 2 rounds $30.0M committed Latest: 2015-09
Sanrad
Develops technology and products for data management and storage on IP networks.
2 rounds $18.0M committed Latest: 2006-07
RadView
A leading provider of enterprise-grade software testing solutions, including load testing and AI-based test automation.
1 round $6.0M committed Latest: 1999-12

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