Index Ventures

Index Ventures is a high-conviction global venture firm that backs exceptional founders from Pre-Seed through Growth, with a strong bias toward companies that can define or dominate massive categories. The firm is especially active in enterprise software, infrastructure, fintech, AI, and breakout consumer/platform businesses, and evaluates investments through a disciplined partnership process that advances only deals with clear, above-threshold conviction.

Evaluation weights

How much weight this firm places on each dimension. Totals 100%.

Team-led · 42%

Metrics

10%

Revenue, growth, and unit economics

Market

20%

Size, timing, and competitive landscape

Team

42%

Founder experience and execution ability

Product

28%

Differentiation and technical quality

Prefers outlier opportunities over average-good companies
Will tolerate early-stage uncertainty if founder and market quality are exceptional
Has a strong bias toward category-defining products rather than incremental tools
Needs clear internal conviction; middling partnership support is unlikely to pass

Pitch difficulty

How hard it is to get a meeting and close funding from this firm.

Funded / yr: 68Deals closed in a typical year.
Led / yr: 31Rounds led in the last 12 months.
Pitches / yr: ~4576Decks reviewed in a typical year.
Acceptance rate: 1.5%Share of pitches that get funded.

Estimated — public data is not fully disclosed.

Why it's hard

Non-midpoint internal scoring system eliminates lukewarm deals
Limited TAM and weak founder-market fit are explicit deal-breakers
Targets category leaders in very large markets, not solid niche businesses
Prefers exceptional, complementary teams and significant ownership in breakout companies

Index is accessible across stages and willing to invest very early, but its actual bar is extremely high: only companies that inspire strong, non-consensus conviction across founder, product, and market dimensions tend to advance. Its non-midpoint voting process and emphasis on venture-scale outcomes make it one of the harder firms to fit unless the opportunity is clearly exceptional.

Green flags

What drives a yes for this firm.

Exceptional founders with fast learning speed and strong founder-market fit
Differentiated products that create a new category or clear technical edge
Large, venture-scale markets with room for category leadership
Early proof of pull such as community momentum, waitlists, OSS adoption, or design-partner traction
Complementary teams capable of building product, company, and go-to-market in parallel

Red flags

What kills deals and gets a fast no.

A market that feels too small or structurally capped
Founding teams missing key competencies or lacking complementarity
Incremental products without a strong technical or category-defining edge
Traction that is shallow, overly bespoke, or disconnected from real demand
Pitches that rely on moderate outcomes rather than venture-scale ambition

How to win

Patterns that lead to successful pitches.

Lead with why this team is uniquely built to win the market
Frame the market as massive, expanding, and capable of producing a category leader
Show concrete early pull: OSS/community growth, waitlists, pilots, or sharp ARR acceleration
Demonstrate product differentiation with a credible path from wedge to platform
Position the company as globally relevant, not confined to a narrow region or niche

Fund strategy & identity

Who they are and how they operate.

Invest as early as Pre-Seed with no 'too early' posture
Concentrate capital behind breakout companies across multiple rounds
Lead rounds where it has strong internal conviction
Target venture-scale outcomes in very large or expanding markets
Pair capital with operational support for global scaling

Firm identity

Founder-first and conviction-drivenGlobal US-Europe-Israel partnershipLeads early and scales with winners through IPOSeeks significant minority ownershipBiased toward balanced, complementary founding teams

Investment focus

Industries, themes, and typical ARR expectations.

Industries

Enterprise SoftwareCloud InfrastructureData InfrastructureDeveloper ToolsFintechConsumer InternetMarketplacesAI Infrastructure

Investment themes

AI-first infrastructure and application enablersEnterprise software and cloud infrastructureOpen-source, developer tools, and data platformsFintech including payments, banking, and market infrastructureLarge-scale consumer products and marketplacesEU-to-global companies built for rapid international expansion

Typical check by stage

Pre Seed$250k-$1M

Seed$1M-$5M

Series A$8M-$15M

Series B$15M-$40M

Series C$25M-$75M

Growth$50M-$200M

Typical ARR by stage

Pre Seed$0-$0.25M

Seed$0-$1M

Series A$0-$5M

Series B$5M-$20M+

Series C$20M-$100M+

Growth$50M+

Investment thesis

Core beliefs and strategy behind their investing approach.

Index Ventures’ core belief is that people, not ideas alone, create lasting companies. It backs founders early and stays through IPO, concentrating capital and operational support on founders who can dominate very large or rapidly expanding markets. Sectorally, Index leans heavily into enterprise software and infrastructure (including open‑source and developer platforms), fintech (payments, banking, capital‑markets infrastructure), and large‑scale consumer or marketplace businesses. AI has become a central theme of the 2024 fund wave, intersecting with its existing infrastructure focus. Geographically, the firm runs a unified partnership across the US, Europe and Israel, championing “EU‑to‑global” companies that are born global and expand quickly. It seeks “significant minority” stakes and avoids businesses with limited total addressable market or those that are fundamentally capped in scale, favoring balanced, complementary founding teams over solo founders.

Decision patterns

How they evaluate and make investment decisions.

Index Ventures follows a clear triad: exceptional, complementary founding teams; differentiated, innovative products; and large, venture‑scale markets. Partners evaluate deals using a non‑midpoint voting system (scores 1‑4 or 7‑10, with >6 required), ensuring only highly‑convicted investments move forward. Deal‑breakers include limited market size, weak founder‑market fit, and missing core competencies. Triggers that prompt investment are strong founder quality and learning speed, early community or network effects (especially in open‑source or consumer waitlists), and tangible enterprise traction such as design‑partner pilots. The firm prefers “significant minority” stakes and aligns with founders, favoring balanced teams over solo founders.

Risk appetite

Index Ventures exhibits an aggressive, early‑stage risk profile. It openly claims there is “no such thing as ‘too early’” and frequently leads seed investments through its Origin platform. The firm also leads large, conviction‑driven Series A and B rounds, especially in AI‑first infrastructure where it sees transformational upside. While aggressive, decisions are filtered through an equal‑partner voting system that tempers enthusiasm with collective discipline. Overall, Index is both a lead investor and a champion of high‑conviction bets in emerging technology cycles.

Notable investments

Key portfolio companies and why they fit the thesis.

FigmaLead
Category-defining design collaboration platform; Index co-led the 2013 seed round and scaled the product globally.
RevolutLead
European fintech "super-app" with massive growth potential; Index led the Series B to accelerate international expansion.
DeliverooLead
Tech-enabled logistics marketplace reshaping food delivery; Index led the Series A to fuel European growth.
PatreonLead
Creator-economy infrastructure that empowers direct fan monetization; Index first invested at Series A in 2014 and continued supporting the company through growth rounds.
DatadogLead
Cloud observability leader in a massive enterprise category; Index co-led the $6.2M Series A with RTP Ventures.
Notion
Bottom-up knowledge-work OS with strong community growth; Index invested but did not lead the round.
Adyen
Global payments platform exemplifying Index's long-term European fintech backing and IPO playbook.

Co-invested with

Other firms in this catalog who've backed the same companies.

Partners

Retired Partner

Index Ventures

Index co-founder and retired partner who led investments in Revolut, Roblox, Supercell, and more.

Consumer internetEuropean technologyFintechFounder mentorshipVenture capital

Simon Pastor

Partner

Index Ventures

Index partner in New York focused on early-stage founders and talent-first investing.

AIEarly-stage investingEuropean foundersNew York startupsTalent investing

Eryk Dobrushkin

Partner

Index Ventures

Index Partner backing enterprise software, infrastructure, robotics, and AI companies.

AIEnterprise softwareInfrastructureRoboticsTechnical founders

Susana Rojas

Partner

Index Ventures

Index partner investing in AI, healthcare, and application software.

AIApplication softwareDigital healthHealthcareProfessional services software

Juriaan Duizendstraal

Partner

Index Ventures

Index partner in Tel Aviv investing in cybersecurity, fintech, infrastructure, and AI.

AICybersecurityEnterprise infrastructureFintechIsrael

Public voice

Notable statements and public positions.

“Ideas don’t build businesses. People do.” – Index Ventures homepage
“We don’t do deals. We back exceptional entrepreneurs, with table‑pounding conviction.” – 2024 fund announcement
“There’s no such thing as ‘too early’ at Index.” – Index Origin seed fund page

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