Index Ventures

Focus: AI, Healthtech & bio, Robotics & hardware, Developer tools, Climate & energy, HR & work, Fintech, Commerce & marketing

Index Ventures took part in 13 of the startup funding rounds we tracked in 2026, leading or co-leading 3 worth $1.59bn. By money raised, its biggest sectors were AI and Healthtech & bio. The largest was Mistral AI's $3.5bn Series D+ round. The most recent was Opply's Series A round in October 2026.

Deployed as lead$1.59bn

Rounds led3

Rounds joined13

Largest round$3.5bn

Rounds led (3)

Fireworks AISeries D+ · AI · San Mateo · 16 Jul$1.51bn HoneSeed · AI · San Francisco · 8 Oct$60m NomosSeries A · Climate & energy · Berlin · 15 Sep$23.1m

Also invested (10)

OpplySeries A · Commerce & marketing · London · 21 Oct$7.5m DuvoSeries A · AI · Czech Republic · 14 Oct$32m AlbertSeries B · AI · Oakland · 13 Oct$55m SpikoSeries B · Fintech · Paris · 6 Oct$90m ThatchSeries C · HR & work · United States · 15 Sep$108m TemporalSeries D+ · Developer tools · United States · 14 Sep$550m Mistral AISeries D+ · AI · Paris · 8 Sep$3.5bn OratomicSeries A · Robotics & hardware · Pasadena · 7 Jul$300m AlanSeries D+ · Healthtech & bio · Paris · 24 Jun$552m Ineffable IntelligenceSeed · AI · London · 27 Apr$1.1bn

Index Ventures

Rounds led (3)

Also invested (10)

By sector

By stage

Co-investors