Guy Gamzu

Israeli entrepreneur and angel investor focused on early-stage tech ventures.

Angel Investor Active Tel Aviv-Yafo, Israel Est. 1997
Visit website ↗ LinkedIn
Last updated 2026-07-20
Portfolio
1
in our dataset
Rounds participated
2
Rounds led
0
Rounds' value
$4.5M
total disclosed, rounds participated
Stages
Pre-Seed, A Round, Seed

About

Guy Gamzu is an Israeli entrepreneur and angel investor. He is the Founder and Managing Director of Cubit Investments Ltd., an early-stage venture capital vehicle established in 1998. Gamzu focuses on pre-seed and early-stage technology startups across sectors like enterprise software, cybersecurity, and consumer technology. He has a track record of early investments in successful Israeli companies such as Fiverr and Trusteer (acquired by IBM). Prior to his venture capital career, Gamzu founded the digital advertising firm Sizmek Technologies. He also founded Yeloha and Hop.

Portfolio · 1

Yeloha
Peer-to-peer Solar-sharing Network
2 rounds $4.5M committed Latest: 2015-04

Investment activity

Portfolio by sector

Fintech & Insurtech3
Health Tech & Life Sciences1
Energy Tech1
Education & Knowledge Technologies1

Q&A

What is Guy Gamzu's primary investment focus?
Guy Gamzu has been an angel investor since 1997, specializing in pre-seed venture finance. His investment stages include Pre-Seed, A Round, and Seed.
Which sectors does Guy Gamzu primarily invest in?
Guy Gamzu shows a concentration in Fintech & Insurtech, with 5 rounds of investment, followed by Health Tech & Life Sciences and Energy Tech, each with 2 rounds.
Can you name some of Guy Gamzu's recent portfolio companies?
Recent additions to Guy Gamzu's portfolio include Atlas Invest, an AI-powered Private Debt Platform founded in 2022, and Jotit, a paper-tablet operating system for schools, also founded in 2022.
What is Guy Gamzu's involvement with eToro?
Guy Gamzu currently serves as a director of eToro.com, a social trading network that has raised $1.14 billion and is currently in the Public funding stage.
What is Guy Gamzu's role with Vyzer?
Guy Gamzu is an investor in Vyzer, a platform for investment management needs. Vyzer raised a $7.3 million Seed round and was founded in 2020.
What is Guy Gamzu's involvement with Vi Labs?
Guy Gamzu is an investor in Vi Labs, an AI as a Service provider for digital health companies. Vi Labs raised a $150.8 million Series A round and was founded in 2011.
What is the most recent investment round Guy Gamzu participated in?
According to startupim data, Guy Gamzu participated in an investment round in January 2025.
What is Guy Gamzu's involvement with Fiverr?
Guy Gamzu currently serves as a director of Fiverr.com.
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)