Index Ventures

What they fund

• Series B scale-ups: Leading or co-leading large rounds like Simile’s $200M Series B and Wonderful’s $150M Series B, targeting companies ready for hyper-growth. [1]
• AI Infrastructure & Applications: Funding companies like Fireworks and Simile that are building the foundational models or applications for the next era of computing. [1]
• Fintech at Scale: Backing established fintech players like Robinhood and Adyen, as well as newer entrants like fomo ($75M Series B) in on-chain trading. [1]
• Enterprise SaaS: Investing in companies like Wiz and Conduct that are modernising enterprise operations, security, and identity. [1]
• Global Consumer Platforms: Funding massive consumer networks like Discord and Roblox, indicating a willingness to back companies with global user bases. [1]

Investment thesis

Index Ventures invests in founders rather than just products, seeking "the unexpected" — groundbreakers and game-changers with an unrepeatable drive. [1]

• Founder-first philosophy: The firm prioritises the people behind ideas, looking for a "fire inside that can’t be dimmed or duplicated" over current product traction. [1]
• Global, cross-sector scope: Backing visionaries across industries, from fintech (Robinhood, Adyen) and enterprise AI (Wiz, Simile) to consumer tech (Figma, Discord). [1]
• Long-term conviction: Willing to back founders through significant pivots and market reckoning, as seen in their deep partnership with Robinhood’s Vlad Tenev. [1]
• Portfolio clustering: Heavy concentration in AI, fintech, enterprise software, and digital health, often leading or co-leading rounds from seed through growth. [1]

Value add

Index Ventures positions itself as a long-term partner, offering strategic guidance and operational support beyond capital. [1]

Fit verdict: Ideal for founders who value a deep, philosophical partnership and are building global, category-defining companies in AI, fintech, or enterprise software.

Founder diligence script:

• How does Index Ventures differentiate its operational support from other top-tier VCs in your specific sector?
• What is the firm's typical follow-on commitment for Series B and C rounds, and how do they manage reserve deployment?
• How does the firm's founder-first philosophy translate into board dynamics and decision-making during a crisis or pivot?
• What specific portfolio companies have benefited most from Index's active partnership, and how was that support delivered?
• How does Index Ventures approach co-investment and syndicate building for large growth rounds?

Portfolio focus

• Fintech & Payments: Robinhood, Adyen, Revolut, and Arca, showing a long history of backing financial infrastructure and consumer finance. [1]
• Enterprise AI & Data: Wiz, Simile, Fireworks, and ClickHouse, indicating a strong focus on infrastructure, data, and generative AI applications. [1]
• Developer Tools & Design: Figma and LiveKit, highlighting an interest in platforms that empower other developers and creators. [1]
• Digital Health & Consumer: Alan and Garner, demonstrating a commitment to scaling healthcare technology and identity solutions. [1]
• Gaming & Social: Roblox and Discord, reflecting a strategy of backing massive-scale consumer platforms and social networks. [1]

Notable investments & exits

• Robinhood: A major fintech success story, with Index Ventures being an early and consistent backer of Vlad Tenev's company. [1]
• Figma: A highly successful enterprise software acquisition, showcasing Index's ability to back category-defining design tools. [1]
• Adyen: A global payments infrastructure company that has seen significant growth and market success. [1]
• Roblox: A massive gaming and social platform, demonstrating Index's ability to back consumer-scale companies. [1]
• Discord: A leading communication platform for communities, another example of Index's consumer tech successes. [1]

Strategic implications

Index Ventures' founder-first philosophy is a significant differentiator, allowing them to back unconventional founders who might be overlooked by product-focused VCs. [1] Their global scope and cross-sector focus provide a unique ability to spot trends across industries and deploy capital where it is most impactful. [1] The firm's long history and consistent success suggest a robust investment process and a strong brand that attracts top-tier founders. [1] Their active partnership model and thought leadership create a flywheel effect, attracting more high-quality deal flow and reinforcing their market position. [1] The main risk is over-reliance on a few mega-successes, which could impact returns if the firm's portfolio becomes too concentrated in a few companies. [1]

Where they could go further

Index Ventures could deepen its focus on specific emerging sectors like climate tech or biotech, where founder-first investing could yield high returns. [1] The firm could enhance its operational support by creating more structured programmes for portfolio companies to access talent, customers, and capital. [1] Index Ventures could leverage its global network to facilitate more cross-border investments and partnerships for its portfolio companies. [1] The firm could increase its transparency around investment process and decision-making to further differentiate itself and attract more founders. [1]