Fhenix is a blockchain research and development company building privacy infrastructure for Ethereum and EVM-compatible blockchains using fully homomorphic encryption. Fhenix's Twitter Score is 111 out of 1000 (an Excellent rating) as of October 2026, ranking #6,209 (top 5%) among 493,607 tracked accounts.
Fhenix was co-founded by Guy Itzhaki and Guy Zyskind. Its core product, CoFHE, is an FHE coprocessor that allows sensitive data to remain encrypted throughout computation, enabling developers to build privacy-preserving smart contracts on EVM-compatible chains. CoFHE is live on Ethereum mainnet and Arbitrum, as well as testnets including Arbitrum Sepolia. Fhenix has also developed FHE coprocessors in collaboration with EigenLayer for confidential compute within the Ethereum ecosystem, and maintains affiliations with Offchain Labs and Base.
Fhenix states it has raised over $22 million in total funding, including a $7 million seed round and a $15 million Series A led by Hack VC, with participation from Amber Group, Collider, Primitive Ventures, GSR, Stake Capital, Multicoin Capital, Robot Ventures, Bankless, and others. In October 2025, Fhenix announced a strategic investment from BIPROGY and Translink Sustainability & Innovation Fund to support expansion into Japan's Web3 ecosystem. Fhenix targets use cases including AMMs, lending, real-world assets, decentralized identity, artificial intelligence, and private stablecoins. Fhenix's account has published 8,642 posts and has been mentioned by 499 accounts a total of 1,591 times.
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Fhenix draws a technically engaged following across the crypto ecosystem. The accounts that follow Fhenix include 428 founders, 114 angel investors, 259 influencers and 23 VCs, among them Kyle Samani, David Hoffman, Tarun Chitra, Eric Wall, DeeZe and Mario Nawfal.