About Index Ventures
Index Ventures is a venture capital firm founded in 1996. It is primarily based out of London, United Kingdom. As of Jul 2026, Index Ventures is an active investor, having invested in 687 companies, with 33 new investments in the last 12 months. It primarily invests in Series A round in United States based startups. Its investments are spread across a wide range of sectors from Enterprise Applications to Consumer and High Tech. Most recently it participated in the $***** Series D round of Fireworks Overall, Index Ventures portfolio has seen 73 unicorns, 40 IPOs and 222 acquisitions including key companies like Slack, Facebook and Robinhood. A lot of funds co-invest with Index Ventures, with names like Sequoia Capital sharing a substantial percentage of its portfolio. Index Ventures has team of 34 people including 2 partners.Key Metrics
Team Members
Portfolio Sectors
Portfolio Locations
Rounds of Entry
Series A, Seed & 9 more
Portfolio IPOs
Portfolio Acquisitions
Portfolio Unicorns
Portfolio Soonicorns
Deals in last 12 months
Index Ventures' List of Top Investments
Index Ventures has a portfolio of 687 companies, including 73 unicorns. Their most notable investments are in Mirage and Sublime Security.Their portfolio spans across United States, United Kingdom, Germany and 32 more locations. They have invested in Enterprise Applications, Consumer, High Tech and 33 other sectors, across stages such as Series A, Seed and 9 more. Here is the list of top investments by Index Ventures:
1. Slack
Developer of communication software for team collaboration and workflow automation. This platform provides digital channels for messaging, file sharing, and audio or video meetings. It integrates with various third-party applications to centralize project management and task tracking. Users utilize automated workflows to manage routine processes and receive notifications. The software includes search functionality to retrieve information from past conversations and documents. Security features protect data and ensure compliance across the organization. Artificial intelligence tools assist with summarizing content, drafting responses, and managing tasks within the interface.
Key facts about Slack
- Founded Year: 2009
- Location: San Francisco (United States)
- Last Known Valuation: $*****
- Stage: Acquired
- Total Funding till date: $1.22B
- Employee Count: 2,626 as on May 31, 2026
- Investors: Glynn Capital, ADS Ventures and 70 Others
- Latest Funding Round: Post IPO, Apr 16, 2020, $*****
- Highlight: Acquired
2. Facebook
Operator of a social networking service facilitating connection and communication. Its services allows users to connect with friends, family, and other individuals. It provides tools for sharing updates, photos, and videos. The platform also offers features for creating and joining groups, following interests, and discovering content.
Key facts about Facebook
- Founded Year: 2004
- Location: Menlo Park (United States)
- Annual Revenue: $1B+ as on Dec 31, 2025
- Stage: Public
- Total Funding till date: $2.27B
- Employee Count: 26,594 as on May 31, 2026
- Investors: Meritech, Sprout Capital Partners and 119 Others
- Latest Funding Round: Grant (prize money), Jan 15, 2017, $*****
- Highlight: Public
3. Robinhood
Broker-based online trading and investment platform. It offers tools for building investment strategies and tracking market trends. It facilitates trading in stocks, funds, options, and crypto assets. Expert-managed portfolios are available, providing market insights and investment adjustments. The company also provides educational resources to improve investor knowledge.
Key facts about Robinhood
- Founded Year: 2013
- Location: Menlo Park (United States)
- Annual Revenue: $1B+ as on Dec 31, 2025
- Stage: Public
- Total Funding till date: $5.73B
- Employee Count: 4,954 as on Jun 30, 2026
- Investors: HTIF, ADS Ventures and 151 Others
- Latest Funding Round: Post IPO, May 13, 2022, $*****
- Highlight: Public
4. Roblox
Online gaming platform for developing web and mobile games. The platform enables its users to create its own games through simple drag and drop mechanisms. It has developed Roblox an action game. It generates revenue through virtual purchases in-game by the use of a virtual currency Robux. The platform follows a revenue share model for game developers.
Key facts about Roblox
- Founded Year: 2004
- Location: San Mateo (United States)
- Annual Revenue: $1B+ as on Dec 31, 2025
- Stage: Public
- Total Funding till date: $918M
- Employee Count: 7,985 as on Jun 30, 2026
- Investors: Meritech, ADS Ventures and 21 Others
- Latest Funding Round: Series H, Jan 06, 2021, $*****
- Highlight: Public
5. Wise
Provider of international money transfer and multi-currency. It offers secure, transparent, and cost-efficient cross-border payment solutions. It provides personal accounts, business accounts, multi-currency cards, and platform APIs that enable individuals, companies, and financial institutions to send, receive, hold, and convert money globally.
Key facts about Wise
- Founded Year: 2011
- Location: Shoreditch (United Kingdom)
- Annual Revenue: €500M - €1B as on Mar 31, 2022
- Stage: Public
- Total Funding till date: $1.03B
- Employee Count: 10,710 as on May 31, 2026
- Investors: Glynn Capital, Fidelity Investments and 120 Others
- Latest Funding Round: Venture Debt, May 19, 2021, $*****
- Highlight: Public
Index Ventures' Year-on-Year Investment Trends
Index Ventures has invested in 687 companies over the last 26 years, with an average of 33 new investments annually in the last 10 years. In 2025, it made 57 investments, while as of Jul 2026, it has made 51 investments in this year. Its most recent first time investment was in Chai Discovery and most recent follow-on round was in Fireworks.Year | No. of Investments | ||
|---|---|---|---|
1st Round | Follow-on | Total | |
2026 (YTD) | 25 | 26 | 51 |
2025 | 21 | 36 | 57 |
2024 | 36 | 28 | 64 |
2023 | 24 | 11 | 35 |
2022 | 35 | 45 | 80 |
2021 | 48 | 76 | 124 |
2020 | 40 | 41 | 81 |
2019 | 31 | 29 | 60 |
2018 | 33 | 30 | 63 |
2017 | 25 | 28 | 53 |
Index Ventures' Investments by Stage
Index Ventures has made 246 investments in Series A stage with an average round size of $16.7M, 218 investments in Seed stage with an average round size of $12.8M and 112 investments in Series B stage with an average round size of $41.7M.Stage of entry | No. of Investments |
|---|---|
Series A | 246 |
Seed | 218 |
Series B | 112 |
Series C | 37 |
Series D | 16 |
Others | 15 |
Note: We have considered here, only first round of investments
Index Ventures' Investments by Sector
Index Ventures has a diverse portfolio, with companies operating in the Enterprise Applications, Consumer, Enterprise Infrastructure, FinTech and High Tech. Notably, it has invested in 633 Tech companies, 446 Enterprise (B2B) companies, 431 Software companies and at least 261 companies focusing on Consumer (B2C).Sector | No. of Investments |
|---|---|
Enterprise Applications | 339 |
Consumer | 169 |
Enterprise Infrastructure | 112 |
FinTech | 98 |
High Tech | 86 |
Others | 636 |
Note: We have considered here, only first round of investments
Index Ventures' Investments by Geography
Index Ventures has made most investments in United States (366), followed by United Kingdom where it has made 113 investments.Country | No. of Investments |
|---|---|
United States | 366 |
United Kingdom | 113 |
Germany | 29 |
France | 26 |
Israel | 18 |
Others | 98 |
Note: We have considered here, only first round of investments
Index Ventures' recent investments
Index Ventures has made 51 investments in 2026 so far. Fireworks and Chai Discovery are the latest among them.Here are the most recent investments by Index Ventures:
Filter this listDate | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Jul 16, 2026 | United States | Series D | 3649 | [+15] | |
Jul 14, 2026 | United States | Series C | 2193 | [+17] | |
Jul 14, 2026 | United States | Series A | 3591 | [+4] | |
Jul 14, 2026 | United States | Series D | 6968 | [+1] | |
Jul 09, 2026 | United Kingdom | Seed | 3764 | [+7] |
Unicorns in Index Ventures' Portfolio
Index Ventures has 73 unicorns in its portfolio - Cowboy Space Corporation, Parallel Web Systems, Ineffable and others. The most recent unicorn in their portfolio is Cowboy Space Corporation. It became a unicorn in 2026, 1 years after Index Ventures first invested in it.Here is a list of unicorns in Index Ventures' portfolio:
Tracxn Score | Company | Short Description | Founded year | Sector | Location | Company Stage | First Investment/ Acquisition Details |
|---|---|---|---|---|---|---|---|
48 | Company developing vertically integrated infrastructure to power and run AI compute in orbit | 2024 | San Carlos | Series B | tvrclsu | ||
64 | Developer of an API providing web search for AI applications | 2023 | Palo Alto | Series B | ipp{xb{ | ||
51 | Developer of reinforcement learning algorithms for autonomous superlearning artificial intelligence | 2025 | London | Seed | hefpwdo | ||
52 | Provider of an AI platform for enterprise customer interaction automation | 2025 | Amsterdam | Series B | cfysiei | ||
45 | Provider of data analytics platform for healthcare cost and quality | 2019 | New York | Series E | wcntylh |
IPOs and Publicly Listed companies in Index Ventures' Portfolio
40 of Index Ventures' portfolio companies have become public. Wealthfront got listed on the National Association of Securities Dealers Automated Quotations (NASDAQ), in Dec 2025 at marketcap of $2.05B and Figma got listed on the New York Stock Exchange (NYSE) at marketcap of $13.5B.Here are Index Ventures' portfolio companies that went public:
Company | IPO Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
Dec 12, 2025 | Mar 20, 2013 | Series B | 7773 | |
Jul 31, 2025 | Dec 19, 2014 | Series A | 5050 | |
Dec 12, 2024 | Nov 14, 2018 | Series D | 9500 | |
Nov 05, 2021 | Mar 09, 2018 | Series B | 4986 | |
Oct 20, 2021 | Mar 23, 2015 | Series C | 8662 |
Acquired companies in Index Ventures' Portfolio
222 companies from Index Ventures' portfolio have been acquired. The most recent acquisition was Dagster in Jul 2026 by Prefect for $*****.Here are Index Ventures' portfolio companies that got acquired most recently:
Company | Acquisition Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
Jul 13, 2026 | Nov 16, 2021 | Series A | 4672 | |
Jun 30, 2026 | Mar 11, 2024 | Seed | 8813 | |
May 28, 2026 | May 07, 2025 | Seed | 5197 | |
May 19, 2026 | Jul 2017 | Series A | 5237 | |
Apr 23, 2026 | Jul 09, 2025 | Seed | 4742 |
Team profile of Index Ventures
Index Ventures has a team of 34 members including 2 Partners, 2 Venture Partners and 7 Principals located in United Kingdom, United States and 3 more locations. Index Ventures' team does not sit on the board of any company as of now.Here is a list of top team members in Index Ventures:
Name | Designation | Location | Board Memberships | Contact Details |
|---|---|---|---|---|
Partner | Switzerland | - | - | |
Partner | Switzerland | - | ||
Venture Partner | United States | - | ||
Venture Partner | Switzerland | - | - | |
Principal | United Kingdom | - | - | |
Principal | United Kingdom | - | - | |
Principal | United States | - | - |
Co-investors of Index Ventures
Over the past 26 years, 3533 investors have co-invested in Index Ventures's portfolio companies. This includes funds and angels.
- Invested before Index Ventures: Y Combinator, Benchmark and 868 others have invested in rounds before Index Ventures. There are 34 companies where Y Combinator has invested before Index Ventures and 18 companies where Benchmark has invested before Index Ventures.
- Top Co-investors of Index Ventures: 1242 investors entered a company along with Index Ventures. These include investors like Sequoia Capital (22 companies).
- Invested after Index Ventures: A total of 1421 investors have invested in Index Ventures's portfolio after their investments. Top Investors include Tiger Global Management (30 companies), Andreessen Horowitz (21 companies) and Sequoia Capital (19 companies).
Recent News related to Index Ventures
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Fireworks Secures $1.5 Billion Series D Funding at $17.5 Billion ValuationMassinvestor•Jul 16, 2026•Atreides Management, Fireworks, TCV, Index Ventures and 1 other
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BRINC Raises $125M With Motorola Help for 911 DronesGovTech•Jul 15, 2026•Motorola Solutions, Index Ventures, Brinc, BRINC Drones
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Chai Discovery Secures $400M Series C Funding for AI-Driven Molecular DesignHIT Consultant•Jul 14, 2026•Index Ventures
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Feathery Raises $30M to Expand AI Platform for Financial ServicesVentureburn•Jul 14, 2026•Feathery, Portage, Index Ventures, Bain Capital Ventures and 3 others
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Arch, Khosla lead quantum startup Oratomic’s $300m series ATech in Asia•Jul 11, 2026•Khosla Ventures, Arch Venture Partners, Lowercarbon, Bezos Expeditions and 5 others
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Marker Raises $13 Million Seed Round Led by Index VenturesStartup Rise EU•Jul 10, 2026•Index Ventures, Marker
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The Feed Is Becoming Crypto’s New Trading TerminalCryptocurrency•Jun 29, 2026•Union Square Ventures, fomo, Index Ventures
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Arca Raises $64 Million to Revolutionize and Humanize Wealth Management at ScaleGlobal Fintech Series•Jun 26, 2026•Venrock, Index Ventures, General Catalyst, Arca and 2 others
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Alan Raises €480 Million from Prosus, Valued at €5.5 BillionFrenchWeb•Jun 25, 2026•Alan, Prosus, Dara Holdings, Ontario Teachers' Pension Plan and 1 other
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Wayout raises €2.42M to scale decentralised drinking water infrastructure platformTech.eu•Jun 25, 2026•DARA Holdings, Alan, Prosus, Index Ventures and 1 other
