Index Ventures

Venture capital firm
San Francisco, CA

Strategy

Stages
SeedSeries ASeries BGrowth
Sectors
EnterpriseConsumerFintechGamingAI
Geographies
USASan Francisco, CA
Check size
$1M-$100M

Portfolio

8 total

Recent Investment Activity

2
DateCompanyEventAmountValuationInvestorsSource
Aug 27, 2026InstinctSeries B$350M$2.5B
outlined = lead
Pulse story
Aug 27, 2026Townfunding round$1B$1B
Index Venturessecond personal-assistant startup
outlined = lead
Pulse story

Sector / Stage Activity

By sector (portfolio)
AI infra
4 · 50%
Biotech
1 · 13%
Cybersecurity
1 · 13%
Quantum computing
1 · 13%
Fintech
1 · 13%

Co-Investors

12

Latest Pulse

Pulse coverage →
  1. Claude Mythos Aces Booz Allen's Cyber Weapon IndexBooz Allen's benchmark scored Anthropic's Claude Mythos at 80 on its Cyber Weapon Index -- the only model of 18 tested to autonomously complete a full cyberattack kill chain -- well ahead of xAI's Grok-4.5 at 49 and OpenAI's GPT-5.6 Sol at 46.
  2. Town Nears $1B Valuation in Index-Led RoundEnterprise AI assistant Town is raising at roughly a $1 billion valuation in a round led by Index Ventures, the second personal-assistant startup to reach a billion-dollar mark in a week.
  3. Instinct Hits $2.5B Valuation on $350M RaisedInstinct, the personal AI assistant built by 23-year-old founder Noah Shinn, has raised $350 million in total including a $250 million Series B co-led by Index Ventures and Benchmark at a $2.5 billion valuation.
  4. Instinct's Valuation Rockets to $2.5B in WeeksInstinct, a four-month-old AI assistant startup led by 23-year-old Noah Shinn, raised $250 million at a $2.5 billion valuation co-led by Index Ventures and Benchmark, up fivefold from $500 million just weeks earlier.
  5. Accel-Backed Keenable Raises $26M to Index Web for AIKeenable, founded by former Yandex and Amazon Alexa search engineers, raised a $26 million seed round led by Accel to build a web search index purpose-built for AI agents rather than human browsers.
  6. Reddit Joins the S&P 500 on a Stunning TurnaroundReddit joins the S&P 500 before markets open on August 18, becoming only the second pure-play social media company in the index after Meta, following a stock rally triggered by the inclusion announcement.
  7. Reddit Stock Jumps on S&P 500 InclusionReddit will join the S&P 500 on August 18, replacing AvalonBay Communities, sending shares up more than 10% and making it only the second pureplay social media company in the index after Meta.
  8. Kospi Roars Back Into Bull Market on Chip ReboundSouth Korea's Kospi index climbed more than 20% from its July low to re-enter bull-market territory, driven by Samsung and SK Hynix shares recovering sharply after the same two chipmakers had driven 71% of the index's July losses.
  9. Grok 4.6 Ties GPT-5.6 Sol at Half the PriceSpaceXAI's Grok 4.6 scored 61 on the Artificial Analysis Intelligence Index, tying GPT-5.6 Sol Max and surpassing Kimi K3, while pricing at $2/$6 per million tokens -- roughly half the going rate for comparable models.
  10. Caris Leads a Wild Week for Recent IPO StocksCaris Life Sciences jumped 21.6% on a beat-and-raise quarter while BillionToOne fell 29.8% despite beating estimates, the sharpest split in the Renaissance IPO Index in weeks.
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