Investors / United States / Index Ventures
Index Ventures
Venture capital · San Francisco, CA, United States · North America
Index Ventures is a venture capital firm that works with entrepreneurs and their companies at every stage, from seed to venture to growth. It describes itself as investing in people rather than deals, building long-term relationships with founders across sectors.
Invests inAI & Machine LearningFintech
Your fit with Index Ventures
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsIndex Ventures lists 306 checked portfolio companies on its own site and is named in 125 funding rounds, 50 of them as lead. Its most frequent entry is Series A, 30% of the companies with a known first round. Its largest themes are AI & Machine Learning (24%), Fintech (18%) and Enterprise Software (12%). 65% of its companies are based in United States. It invests most often alongside Sequoia Capital, Andreessen Horowitz and Y Combinator.
Counts come from funding rounds that name Index Ventures, complete from mid-2025: earlier rounds appear only when they were reported later. Round amounts and full round histories are on Fundup AI.
Round figures show recent activity, not Index Ventures' whole history. Rounds on record name 105 companies; its own site lists 306. Funding rounds are complete from mid-2025, so counts and the yearly trend undercount a firm that invested before then. The portfolio, themes and places come from its own site and are not affected.
Entry stage
share of companies by the stage of its first roundShow as a table
| Value | |
|---|---|
| Pre-seed | 0% |
| Seed | 22% |
| Series A | 30% |
| Series B | 21% |
| Growth | 27% |
Activity by year
rounds it joined, last 10 yearsShow as a table
| Total | Rounds it led | |
|---|---|---|
| '17 | 0 | 0 |
| '18 | 1 | 0 |
| '19 | 0 | 0 |
| '20 | 0 | 0 |
| '21 | 3 | 1 |
| '22 | 1 | 0 |
| '23 | 2 | 0 |
| '24 | 4 | 1 |
| '25 | 37 | 16 |
| '26 | 75 | 32 |
Investor profile
percentile among all firmsShow as a table
| Measure | Percentile of all firms | Value |
|---|---|---|
| Portfolio size | 99th | 305 companies |
| Recent activity | 100th | 81 rounds in 12 months |
| Early stage | 58th | 22% of entries at pre-seed or seed |
| Evidence | 96th | 27% of companies confirmed by a round |
| Sector focus | 29th | 24% in its largest sector |
| Reach | 100th | 25 countries |
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| AI & Machine Learning | 24% | 18% |
| Fintech | 18% | 12% |
| Enterprise Software | 12% | 8% |
| E-commerce & Marketplaces | 7% | 6% |
| Healthcare & Biotech | 6% | 15% |
| Cybersecurity | 6% | 4% |
| Space & Defense | 4% | 3% |
| Media & Entertainment | 4% | 4% |
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Sequoia Capital | 32 |
| Andreessen Horowitz | 27 |
| Y Combinator | 26 |
| Accel | 23 |
| LocalGlobe | 22 |
| Kleiner Perkins | 21 |
| General Catalyst | 20 |
| Bessemer Venture Partners | 17 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers30299%
- No longer answers00%
- Points to another company41%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Co-investor network
who it backs companies with, and who they back togetherCompare Index Ventures head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Recent portfolio activity
when companies last raised with Index Ventures| Date | Company | Stage |
|---|---|---|
| 10 Nov 2026 | Series A Led | |
| 21 Oct 2026 | Series A Led | |
| 21 Oct 2026 | Seed | |
| 14 Oct 2026 | Series A | |
| 13 Oct 2026 | Series B | |
| 13 Oct 2026 | Series B | |
| 8 Oct 2026 | Seed Led | |
| 8 Oct 2026 | Series B Led |
Round details for Index Ventures
Amounts, full round histories and every co-investor in Index Ventures' rounds are on Fundup AI. VCinfo covers investors and their portfolios.
Portfolio
306 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| 1stDibs is an online marketplace for antique and modern furniture, jewelry, fashion, and art | E-commerce & MarketplacesFintech | Portfolio page | ||
| The company provides artificial intelligence-based security platforms and services for cybersecurity operations | CybersecurityAI & Machine Learning | Dec 2025Series A | Page + round | |
| Abacus.ai develops and provides AI-powered assistant solutions for professionals and enterprises | AI & Machine LearningEnterprise Software | Portfolio page | ||
| Adaptive ML builds, owns, and deploys specialized LLMs and drives business value through Reinforcement Learning | AI & Machine LearningEnterprise Software | Portfolio page | ||
| Adfin provides an automated payments and credit control platform for businesses. | FintechSpace & Defense | May 2026Series A | Page + round | |
| Adyen delivers a fintech platform for payments, data, and financial products to enterprises | FintechEnterprise Software | Portfolio page | ||
| Portfolio page | ||||
| Cowboy Space Corporation builds a power grid in outer space for artificial intelligence using satellites and rockets | Space & DefenseAI & Machine Learning | Apr 2025Series A | Funding round | |
| Alan provides health insurance services to companies and individuals. | Healthcare & Biotech | Mar 2026Round · 2 rounds | Page + round | |
| Albert provides a personal financial assistant to help users manage their finances, including budgeting, banking, investing, and borrowing. | FintechFintech | Portfolio page | ||
| Albert Invent develops an AI operating system for chemistry research and development | AI & Machine LearningHealthcare & Biotech | Oct 2026Series B | Funding round | |
| Allara Health provides virtual women's health services, including personalized treatment plans and ongoing support, covered by insurance or available through self-pay options. | Healthcare & Biotech | Oct 2026Series B | Page + round | |
| Alta provides a universal tokenized infrastructure for institutions, offering various financial services such as cross-border payments, embedded finance, and treasury management. | FintechFintech | Nov 2026Series A | Funding round | |
| Ando is team messaging built for companies where people and agents need to share context, coordinate work, and make decisions together. | Space & DefenseAI & Machine Learning | Sept 2026Seed | Page + round | |
| ANINE BING sells clothing and accessories | Consumer | Portfolio page | ||
| Ankar works with world-leading R&D organizations to bring their institutional knowledge and the world’s technical intelligence to every R&D decision. | AI & Machine LearningRobotics & Hardware | May 2025Seed · 2 rounds | Page + round | |
| Portfolio page | ||||
| Anrok provides a global sales tax and VAT solution for modern commerce | FintechE-commerce & Marketplaces | Oct 2025Series C+ | Page + round | |
| Anthropic develops AI models and products, including the Claude models, and conducts AI safety research. | AI & Machine LearningEnterprise Software | Portfolio page | ||
| Apex Space manufactures and delivers satellite platforms to customers | AI & Machine LearningAI & Machine Learning | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- indexventures.com
- Last read
- 5 Nov 2026
- Watching since
- 5 Nov 2026
- Rounds since
- 21 Sept 2011
- Companies checked
- 306
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
Get Index Ventures' profile as data
Pull Index Ventures' portfolio, co-investors and changes through one API key or MCP, open every portfolio row, compare it with other firms, and get an email when it adds a company or files a fund.
Work email, sign-in link by email. Already have an account? Log in- Ask AI5 plain-English investor searches a day
- Full listsEvery portfolio row and two-firm overlap
- API and MCP100 REST or MCP calls a month, one key
- AlertsFollow 5 investors for portfolio and fund changes
$ curl -H "X-API-Key: YOUR_KEY" \
https://api.vcinfo.io/v1/firms/indexventures.com
# also
GET /v1/firms/indexventures.com/portfolio
GET /v1/firms/indexventures.com/coinvestors
GET /v1/firms/indexventures.com/news