Inferact
San Francisco, United States
◆ Total Raised
$150M
◆ Stage
seed
◆ Location
San Francisco, United States
◆ Founded
2025
◆ About Inferact
San Francisco AI infrastructure startup founded by vLLM core maintainers, building commercial services around the open-source vLLM inference engine.
◆ What sets it apart
Inferact commercializes vLLM, a widely adopted open-source inference engine, while its founding team continues to steward the underlying ecosystem.
◆ Sectors
◆ Business
ModelSaaS
CustomerCompanies and cloud providers running large-scale generative AI inference workloads
◆ Notable
- Founded by vLLM creators and core maintainers
- Raised a $150 million seed round at an $800 million valuation in January 2026
◆ Backing funds on Raise
- Lightspeedseed
◆ Funding rounds
◆ Explore the market
◆ FAQ
What does Inferact do?
San Francisco AI infrastructure startup founded by vLLM core maintainers, building commercial services around the open-source vLLM inference engine.
Where is Inferact based?
Inferact is based in San Francisco, United States, founded in 2025.
How much has Inferact raised?
Inferact has raised $150M in tracked funding and is currently at the seed stage.
Who has invested in Inferact?
Investors in Inferact include Andreessen Horowitz, Lightspeed Venture Partners, Sequoia Capital, Altimeter Capital, Redpoint Ventures, ZhenFund, The House Fund and Striker Venture Partners.