AI Companies Across Language, Media and Infrastructure
The portfolio spans companies selling a finished interface and companies providing inputs for downstream AI systems. That distinction is useful when comparing where each product captures value.
Index Ventures AI Investments
Index Ventures’ selected investments include language tools at DeepL, creative workflows at Captions and Ideogram, and model infrastructure at Fireworks AI. Mistral and Scale AI broaden the sample to models and data.
- Investor Type
- Venture Capital Firms
- Selected AI Companies
- 6
- Reviewed
- 2026-11-06
Index Ventures’s AI Investment Approach
Index Ventures’s Selected AI Portfolio
Selected disclosed relationships, reviewed November 6, 2026. Each source supports the investment relationship; this is not a complete portfolio or a statement of current holdings.
Mistral AIFoundation Models
Fireworks AIAI Infrastructure
Scale AIBusiness Data
CaptionsCreative Software
IdeogramCreative Software
DeepLLanguage and Speech
FAQ
Which AI companies has Index Ventures backed?
Index Ventures’ selected investments include language tools at DeepL, creative workflows at Captions and Ideogram, and model infrastructure at Fireworks AI. Mistral and Scale AI broaden the sample to models and data.
How do the selected Index Ventures investments differ?
The portfolio spans companies selling a finished interface and companies providing inputs for downstream AI systems. That distinction is useful when comparing where each product captures value.
What was Index Ventures’s role in Mistral AI’s Seed?
The selected financing record lists Index Ventures as a participant in Mistral AI’s Seed. The company entry links to the source for that round.
What was Index Ventures’s role in Fireworks AI’s Series D?
The selected financing record lists Index Ventures as a lead investor in Fireworks AI’s Series D. The company entry links to the source for that round.