TACEO
A shared MPC-based privacy computation network
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About TACEO
TACEO is a privacy-computing infrastructure company that combines secret sharing, multiparty computation and collaborative zero-knowledge proofs into a private execution layer: inputs are split into shares in transit and at rest, independent node clusters compute jointly over the encrypted shares, and coSNARKs verify the result on public contracts, so no single party sees plaintext.
It exposes the capability as three callable services: outsourced proof generation, unlinkable identifier generation via OPRF, and reads and writes of encrypted shared state through OMap. Developers write MPC logic in existing circuit languages with coNoir and coCircom, keeping EVM composability without migrating chains. Deployments cover private payments, identity checks and AI-agent settlement: credential verification for World ID and ZKPassport runs on the same network, and Merces handles real funds on public chains. The trust boundary is the honesty threshold of the MPC node set, and more nodes mean higher latency.
In 2026 TACEO pushed private shared state from concept toward integrable components.
TACEO combines multi-party computation with coSNARKs so several parties compute jointly over encrypted data and produce a succinct proof that the computation ran as agreed without exposing inputs, and on top of that it offers OPRF private identifiers, OMap encrypted lookup, private set intersection and proof generation. Adoption is the most persuasive part. Its MPC network runs iris matching for World ID, keeping biometrics of more than 14 million users encrypted end to end, one of the largest publicly known secure multi-party computation datasets. No new round appeared in 2026; the team concentrated on financial services, identity and AI data compliance, and a July third-party review completed verification of its services without finding security incidents.
TACEO should package proving and lookup into standard APIs, extend into stablecoin compliance and agent data access, and find a second million-user use case beyond biometrics.
Lukas Helminger — Co-founder & CEO; former cryptography researcher and lecturer at TU Graz and contributor to the Austrian Defence Department.
Daniel Kales — Co-founder & CTO; PhD in cryptography.
Roman Walch — Co-founder & Lead Cryptographer; PhD in cryptography from TU Graz.
Christian Rechberger — Co-founder & Chief Scientist; professor at TU Graz and co-designer of the Poseidon hash function.
Lukas Götz — Co-founder & CPO.
Stefan Plank — Co-founder & COO.