AltaIR Capital
AltaIR Capital is an international early-stage venture capital firm founded by Igor Ryabenkiy, investing in global startups with teams from the USA, Israel, and Europe across productivity tools, AI, SaaS, and fintech.
San Francisco, United States · 65+ investments · 85 portfolio companies
- Headquarters
- San Francisco, United States
- Founded
- 2005
- Website
- altair.vc
- AUM
- $600.0M
- Portfolio Companies
- 85
- Total Investments
- 65
- Last Investment
- Oct 2025
- Geographic Focus
- Europe, Middle East and North Africa, North America
Investment Thesis
AltaIR Capital is a Venture Capital firm based in San Francisco, United States. It has made 65 investments in Artificial Intelligence and Digital Health, including Solda AI, Miro and OpenWeb.
Portfolio85




















Co-investors24
Sign up to view co-investors
24 co-investors across 117 shared portfolio companies — who they back alongside, and how often they lead.
Venture Capital ×20 · Accelerator ×1 · Growth Equity ×1 · 46 shared rounds
Investment History
Sign up to view investment history
Create a free account with 25 free credits every month, no card needed, to unlock deal history, amounts, and round details.
Your firm? Embed this profile
Add the live badge to your site — it stays current as your portfolio data updates.
<a href="https://indexed.vc/investors/altair-capital"><img src="https://indexed.vc/api/badge/investor/altair-capital" alt="AltaIR Capital on Indexed.vc" width="260" height="76" /></a>









