zkvm
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Fabric Cryptography
Fabric Cryptography is a San Francisco hardware startup building the Verifiable Processing Unit (VPU) - a fully programmable custom-silicon chip with an instruction set designed specifically for advanced cryptography. Founded in 2021 by Michael Gao, Tina Ju, and Sagar Reddy, Fabric aims to do for cryptography what Nvidia did for AI: dramatically accelerate workloads like zero-knowledge proofs, fully homomorphic encryption, and multi-party computation compared with CPUs, GPUs, and fixed-function accelerators. The company has raised $39M total, including a $33M Series A in August 2024 co-led by Blockchain Capital and 1kx.
Succinct
Succinct is a San Francisco cryptography company building SP1, an open-source zero-knowledge virtual machine that lets developers prove the correct execution of any Rust program, and the Succinct Prover Network - a decentralized marketplace where independent provers compete to generate ZK proofs for rollups, bridges and onchain applications.