Pantera Capital leads $20 million funding round into Subzero Labs as developer-friendly blockchain project leaves stealth

Quick Take

  • Pantera Capital is leading a $20 million funding round into Subzero Labs, a startup emerging from stealth that’s building a blockchain designed for “internet‑scale decentralized applications.”
  • The Rialo network is designed to make developing blockchain applications as easy as building scalable web2 products.

Pantera Capital is leading a $20 million funding round into Subzero Labs, a startup emerging from stealth that’s building a blockchain designed for "internet‑scale decentralized applications." Other heavyweights, including Coinbase Ventures, Fabric Ventures, Mysten Labs, Susquehanna Crypto, and Varient, contributed to the round.

Its blockchain, dubbed Rialo, is "a radical rethinking of decentralized programmable networks" that offers "the responsiveness and reactivity of Web2."

"From tokenized assets, to prediction markets, to global trading platforms, to AI agent orchestration, developers can build with familiar tools while delivering apps that outperform their centralized counterparts in both cost and user experience," Subzero wrote in a statement on Friday.

According to the announcement, the system will leverage RISC-V, the instruction set architecture for smart contracts that Vitalik Buterin wants to transition Ethereum to, and the highly scalable Solana VM compatibility.

Subzero’s co-founders have experience building next-gen, scalable blockchains, having started in crypto as early engineers at Mysten Labs, building the Sui network. Both also have a background in web2: Zhang worked on Meta's blockchain initiative Diem as well as AI infrastructure at Meta and Google, while Adepoju developed distributed systems at Netflix and advanced microchips at AMD.

Their startup has apparently already attracted talent from major tech firms like Apple, Amazon, and TikTok, as well as crypto ecosystems including Polkadot and NEAR.

"Rialo is the only full stack network for real world applications - built by leading industry developers for developers," said Paul Veradittakit, managing partner of Pantera Capital. "It’s rare to see such a high concentration of talent to drive this vision. We believe under Ade and Lu’s leadership the Subzero Labs will deliver the infrastructure that finally empowers developers to create decentralized products that are intuitive, useful, and relevant to everyday users."


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© 2025 The Block. All Rights Reserved. This article is provided for informational purposes only. It is not offered or intended to be used as legal, tax, investment, financial, or other advice.

AUTHOR

Daniel Kuhn is a Senior Journalist and Editor at The Block, where he covers the crypto industry with a particular focus on tech. He previously served as deputy managing editor of opinion/features at CoinDesk. He first appeared in print in Financial Planning, a trade publication magazine. Before journalism, he studied philosophy as an undergrad, English literature in graduate school and business and economic reporting at an NYU professional program. You can connect with him on Twitter and Telegram @danielgkuhn or find him on Urbit as ~dorrys-lonreb.

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