Altair Ventures

An international early-stage venture investment company.

Venture Capital Active San Francisco, United States Est. 2005
Last updated 2026-07-20
Portfolio
1
in our dataset
Rounds participated
1
Rounds led
0
Rounds' value
$4.0M
total disclosed, rounds participated
Stages

About

AltaIR Capital (also referred to as Altair Ventures or Altair Capital Management) is an international early-stage venture capital firm that invests in global startups with teams primarily from the USA, Israel, and Europe. Founded in 2005 by Igor Ryabenkiy, the firm manages over $600 million in assets across multiple funds and has invested in more than 350 portfolio companies, including 11 unicorns. AltaIR Capital focuses on sectors such as Productivity Tools/Future of Work, AI, SaaS, Fintech, Insurtech, Digital Health, HR Tech, and consumer technology. They invest in early to growth-stage companies, from pre-seed to Series B and growth equity stages, looking for scalable business models, motivated teams, and significant market potential.

Portfolio · 1

Investment activity

Portfolio by sector

Cyber Security1

Q&A

What is Altair Ventures' most recent investment?
Altair Ventures' most recent investment was in Barrel Protocol, a Seed round of $4M in September 2018.
What is Altair Ventures' sector focus?
Altair Ventures has invested in the Cyber Security sector, with Barrel Protocol as a portfolio company.
What is the typical investment stage for Altair Ventures?
Altair Ventures has participated in Seed stage investments, as seen with their investment in Barrel Protocol.
What is the typical check size for Altair Ventures?
Altair Ventures' investment range is $4M, based on their investment in Barrel Protocol.
How many portfolio companies does Altair Ventures have in the Cyber Security sector?
Altair Ventures has one portfolio company in the Cyber Security sector, Barrel Protocol.
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Identifiers & details

Founded2005