Solutions for a secure && decentralised world

Sigma Prime is a leading blockchain security and research firm with an extensive history in decentralised technology.

We perform in depth security assessments for leading protocols and applications whilst building and maintaining Lighthouse, a prominent Ethereum consensus client.

We are on a mission to ensure that all stakeholders in blockchain innovation can utilise web3 securely.

Our Focus

Trusted by developers, end users, and corporations

Information Security

Sigma Prime founded and maintains Lighthouse, a Rust implementation of the Ethereum consensus layer. Lighthouse is widely entrusted by institutional and individual users for staking on Ethereum.

Ethereum Consensus

We contribute to various open source projects and research efforts in the blockchain ecosystem.

Research & Development

Our team of researchers and engineers is trusted by the most critical and successful decentralised projects, making us a leading provider of Ethereum smart contract security reviews.

Services

World-class blockchain information security services

Smart Contracts

We have extensive experience in EVM and non-EVM based smart contract security reviews. Servicing the industry since the earliest days of Solidity, we have assessed a wide range of projects, some examples being; multi-billion dollar DeFi projects, low-level gas-saving assembly libraries, core protocol infrastructure and standard token contracts.

Zero Knowledge (ZK) Systems

We review various types of zero-knowledge systems, including custom circuits, provers, verifiers and all applications built on top of zero-knowledge platforms. We have developed a particular expertise in the Cairo programming language.

Blockchain Primitives & Infrastructure

As creators and maintainers of a popular Ethereum consensus client, we have unique expertise in securing core blockchain primitives, including novel cryptographic primitives devised in the blockchain context, p2p networks and their associated designs and applications, along with all forms of consensus mechanisms. We also review entire blockchain client implementations.

Layer 2 Protocols

We assess layer 2 software with a particular focus on new virtual machine implementations and associated languages, layer 2 sequencers, general architecture and infrastructure as well as any security risks based around decentralised trust on the layer 1.

Lighthouse

Lighthouse is an open-source Rust Ethereum consensus client, heavily focused on security and performance. Our mission is to contribute to the establishment of a secure, sustainable and efficient protocol to create a safer, decentralised world.

Clients

Request a security review