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Offchain Labs

Offchain Labs, Inc. is the Princeton-founded blockchain infrastructure company publicly branded as Offchain, developing and operating products including Arbitrum, Prysm, and ZeroDev.
New York, United States

Arbitrum Nova


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Description

AnyTrust settles securely on Ethereum, relying on a DAC to store and verify data, which requires only two honest parties independent of the committee size.

Category: L2

Arbitrum Bridge


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Description

Arbitrum Bridge is a decentralized token-bridging application comprising a web interface and canonical contracts deployed across parent and Arbitrum child chains. It supports deposits and withdrawals of ETH and ERC-20 tokens across relationships such as Ethereum and Arbitrum One, Ethereum and Arbitrum Nova, and Arbitrum One and Layer 3 Arbitrum chains. The implementation uses Arbitrum cross-chain messaging together with paired gateway and router contracts, while the interface lets users select networks and tokens, initiate transfers, monitor transactions, and claim completed withdrawals. Offchain Labs implemented the canonical bridge and maintains its interface and contract repositories.

Category: Bridge
TVL: $2.8B

Chains:
Ethereum

Arbitrum Nova Bridge


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Description

Arbitrum is a decentralized Layer 2 technology built by Offchain Labs, providing solutions for scaling Ethereum with a focus on security and efficiency.

Category: Chain
TVL: $11M

Chains:
Ethereum

Prysm


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Description

Prysm is a Golang Ethereum consensus client used for institutional-scale validator operations and network validation. It emphasizes reliability and operational safety, including an active slasher implementation, and was among the first consensus clients to support Ethereum’s transition to proof-of-stake during The Merge.

Category: Node Software

Tandem


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Description

Tandem is Offchain's partner studio and venture arm for blockchain infrastructure and application teams. It offers founder mentorship, access to blockchain builders, engineers, and researchers, plus support for go-to-market planning, partnerships, business development, research, product, and engineering.

Category: Venture Services

Onchain Labs


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Description

Onchain Labs is a venture focused on accelerating the next generation of applications on Arbitrum. It partners with builders, early-stage startups, and teams pursuing novel use cases, offering early product ideation, Arbitrum infrastructure and architecture guidance, launch and distribution strategy, and equitable community-focused launch support. Its support is aimed at projects aligned with fair-launch principles and sustainable ecosystem value creation.

Category: Venture Services

Arbitrum SDK


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Description

Arbitrum SDK is a distinct open-source TypeScript project maintained in the public OffchainLabs/arbitrum-sdk repository and distributed as @arbitrum/sdk on npm. Its documented scope is developer-side interaction with Arbitrum chains: bridging ETH and ERC-20 assets across parent and child chains, handling parent-to-child and child-to-parent messages, and configuring supported or custom Arbitrum networks. The package page links directly to that repository, and the repository README identifies the code as @arbitrum/sdk v4.