Israel's best-documented angels are mostly founders who became investors, and no public source ranks them. In no particular order, the sourced names are iAngels, Shlomo Kramer, Jon Medved and Yossi Vardi. Their details below come from Calcalist, Network World, TechAviv and a conference bio, and each fact links to the page behind it.
A "top angels" list is easy to fake and hard to source, because most angel cheques are never announced. This guide takes the opposite route: four names, each tied to a dated public page, with the limits of that page stated.
Why are Israel's angels mostly founders?
The public record points that way. At the Tech TLV conference, reported by Calcalist in February 2026, LeumiTech CEO Maya Eisen-Zafrir talked about "investing entrepreneurs", second-time founders who also write cheques. She said serial entrepreneurs were a record 35% of all founders in 2025, that exit volume that year was nearly $18 billion with 45% of it from cybersecurity, and that 55% of US angels have an entrepreneurial background.
The same article profiles Ofer Ben-Noon, who co-founded Argus Cyber Security (acquired by Continental for about $450 million) and founded Talon Cyber Security (acquired by Palo Alto Networks in 2023 for $650 million). It says more than 25 founders who now run their own companies previously worked with him. That is one template: build, sell, then back the people who worked next to you.
The profiles, in alphabetical order
iAngels
Calcalist reported in July 2021 that iAngels, founded in 2014 and led by Mor Assia and Shelly Hod Moyal, had closed $55.5 million for its first institutional fund, with $25 million from the European Investment Fund. It said assets under management then exceeded $300 million and that the group had 22 exits. It is a group, not an individual angel. In PitchBook's count of the most active Israeli investors, published by Globes in March 2019, iAngels was seventh with 58 deals since 2014.
Shlomo Kramer
Calcalist's 2020 profile describes him as the founder and CEO of Cato Networks, a co-founder of Check Point and Imperva, and an investor who "backed dozens of startups with hundreds of millions of dollars". It names Trusteer (acquired by IBM in 2013), WatchDox (BlackBerry, 2015), Worklight (IBM, 2012) and LightCyber (Palo Alto Networks, 2017) as prominent examples. Network World's 2016 interview adds that he was the founding investor in Lacoon, names Indegy among his current investments, lists him as involved with Exabeam and, outside security, as an investor in Fundbox.
His angel activity now has a vehicle. In May 2026, Calcalist reported Skinos Ventures, a $26 million cybersecurity fund funded mostly by Kramer, who acts as strategic advisor and foundational investor. Its general partner is Yishay Yovel, it targets seed and Series A at the intersection of cybersecurity and AI, and it plans five investments of $2.5 million each. Two startups were in the portfolio at launch.
Jon Medved
TechAviv's profile calls him the founder and CEO of OurCrowd and counts over 400 tech startups backed as a venture capitalist and angel investor, including OurCrowd's portfolio. It adds that he co-founded Israel Seed Partners in 1994. TechAviv's total includes OurCrowd's portfolio, so it measures a platform and not a personal angel record. In the 2019 PitchBook count above, OurCrowd led the Israeli table, with a count above 138 deals since 2014.
Yossi Vardi
A conference speaker bio from Techsylvania 2018 describes him as an Israeli angel investor and an original investor in ICQ, and a co-founder of TEKEM, one of Israel's first software houses. It says he invested in over 80 tech companies and lists exits to Microsoft (Gteko), Cisco (Tivella) and Yahoo (FoxyTunes). The bio is eight years old, so it shows his record, not his current pace.
What do these angels say they look for?
Only one of them has said much in a form that can be cited. In the Network World interview, Kramer described four filters. He sticks to security, where his knowledge is deep. He prefers established markets where budgets already exist and a new approach can win. He backs a few areas on instinct while admitting that timing is hard to predict. And he called great entrepreneurs the number one requirement, citing intellectual honesty and the ability to navigate the market.
The other entries describe track records and structures, not selection rules.
What does the 2025 pre-seed data say about Israeli angels?
The best recent numbers on how Israeli angels write cheques come from Fusion's annual pre-seed report, covered by Calcalist in March 2026. It covers rounds of up to $2 million in 2025 and draws on 33 private angels who reported 151 pre-seed deals, 37 seed funds that reported 181, and Fusion's own data on about 1,200 startups. It is a survey of active investors, so it describes the people who answered, not every Israeli angel.
On cheque size, 42 percent of the angel deals in the sample were between $100,000 and $250,000 in 2025, up from 27 percent in 2024. On price, the share of angels willing to invest at valuations of $15 million or higher rose from 27 percent to 34 percent, and the median Israeli valuation was $6.8 million. The report also found that 48 percent of angels made at least one investment in a solo-founder company.
Fusion's data and the profiles above point to different kinds of investor. The profiles are of founders-turned-investors with large track records, while the survey counts the wider group of angels who report pre-seed deals. A fund like Skinos writes its own, much larger cheques, so its figures belong in a different column from the survey's.
For the wider picture, see angel investing in cybersecurity startups, the international angel investing guide and angel investing in the Middle East. The cybersecurity side of the same names is on the cybersecurity angels page. The basics of the search are in how to find angel investors for your startup, and the angel investing section has more.
Frequently Asked Questions
Q:Who is Israel's most active angel investor?
No public source ranks individual Israeli angels. PitchBook's 2019 count, published by Globes, ranked firms: OurCrowd first, Altair Capital second, and iAngels seventh. Any single-name claim goes beyond what these sources support.
Q:Are these investors still active?
The newest source is Calcalist's May 2026 report on Kramer's Skinos Ventures. The Vardi bio dates from 2018 and the PitchBook count from 2019, so confirm current activity before you rely on them.
Q:How large are their cheques?
Most of the profiled investors do not publish cheque sizes. The one figure in the profile sources is $2.5 million per investment at Skinos Ventures, which is a fund, not a personal angel cheque. Fusion's 2025 pre-seed survey, covered by Calcalist, found 42% of angel deals in its sample were between $100,000 and $250,000.
Q:Is cybersecurity the only sector they back?
No, but it is the strongest. Cybersecurity made up 45% of 2025 exit volume according to Calcalist. Kramer's own record includes a non-security name, Fundbox, according to Network World.