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  1. Sectors
  2. /Open Source

Open Source

7 VCs and 1 funds investing in Open Source

VCs investing in Open Source

Chris Dixon

Founder, Managing Partner

95%

a16z crypto

Check: No personal check-size range is published. The official profile's aggregate fund-raising figure and public financing announcements describe firm resources and transactions, not Chris's individual authority or a reliable minimum/maximum check.

Chris invests behind blockchains as a new computing and ownership primitive for the internet. His core thesis is that token-enabled networks can align builders, users, and owners; bootstrap network effects; replace extractive corporate platforms with open, composable economies; and eventually support both financial and non-financial applications. He treats the category as a decades-long infrastructure-to-applications transition rather than a short market cycle.

SeedEarly StageGrowth

Andy Weissman

Managing Partner

92%

Union Square Ventures (USV)

Check: No personal check-size range is published. USV describes itself as an earliest-stage generalist investor and makes decisions collaboratively without a vote; round fit should be confirmed with the partnership rather than attributed to Andy alone.

Andy invests at the edge of large markets under transformative pressure. His long-running thesis work centers on engaged networks, differentiated user experience, and defensibility created by network effects, then expands to enabling infrastructure, market-specific networks, and open decentralized data. More recent writing examines patient-centered healthcare and trust, openness, and native behavior in AI.

Pre-SeedSeedSeries A

Nick Grossman

Partner

87%

Union Square Ventures (USV)

Check: No personal check-size range is published. USV invests at the earliest stages and supports companies throughout their journey; investment decisions are made collaboratively by discussion rather than individual vote.

Nick's work connects open, decentralized systems with the infrastructure needed for the next computing cycle. His current 'Rebel Alliance' thesis argues that agentic AI will favor a modular ecosystem around foundation models—spanning orchestration, harnesses, memory, browsers, routing, identity, and payments—because production agents cross services, models, data environments, and trust boundaries.

Pre-SeedSeedSeries A

Brandon Reeves

Partner

85%

Lux Capital

Check: No verified personal or standard Lux check-size range is published. Brandon invests at both early and growth stages; disclosed financing rounds, such as Hugging Face's $15M Series A, are total rounds and not his personal allocation range.

Brandon backs technical platforms and applications across software, AI, defense, and manufacturing. A recurring theme is open or developer-led infrastructure that turns frontier capability into production systems, paired with companies modernizing regulated or antiquated industries. His current portfolio spans open models and AI cloud, nature-inspired foundation models, coding agents, finance automation, defense autonomy, physical AI, autonomous factories, life-sciences R&D, security, data, and crypto infrastructure.

SeedSeries AEarly Stage

Zao Chen

Principal

80%

Craft Ventures

Check: No Zao-specific check range is public. His attributed deals span Series A through late growth, while Craft operates separate early-stage and growth funds. Founders should confirm current vehicle, ownership target and sizing through inquiries@craftventures.com rather than infer a range from individual announced rounds.

Zao invests in software with a particular focus on data and AI infrastructure and developer tools. His work favors open, interoperable or community-led platforms that become default infrastructure: technically excellent products with fast time to value, authentic developer adoption, a clear activation event and a path from grassroots use to enterprise-scale workloads. He pairs growth investing with embedded operating work on finance, business operations and product-led growth.

Series ASeries BSeries C

Zao Chen

Principal

75%

Craft Ventures

Check: Firm-level public estimate: $500K-$3M at Seed, $3M-$10M+ at Series A/B, and $10M+ at Growth

Chen invests in software with a focus on data infrastructure, AI infrastructure, and developer tools. His work with Supabase shows a preference for technically trusted, developer-loved products whose product-led and open-source adoption can be translated into a measurable growth engine and eventually scaled from grassroots usage to enterprise workloads.

SeedSeries ASeries B

Tal Shalom

Partner

70%

Collider Ventures

Check: $50K-$1M reported by external investor directories for Collider's early-stage strategy; founders should confirm current sizing directly with the firm.

Tal focuses on the overlap of open-source systems, smart contracts, and regulated real-world industries. His investment and legal lens asks whether decentralized technology can streamline insurance, physical infrastructure, or other complex systems while giving founders a workable structure for scaling through legal and regulatory uncertainty.

Pre-SeedSeedEarly Stage

Funds focused on Open Source

Eleftherios Diakomichalis

Berlin

0 people0 investments