Polygon focuses on developing Ethereum scaling solutions. It offers a suite of protocols to provide developers with access to major scaling solutions, including layer 2s, sidechains, hybrid chains, application-specific chains, enterprise chains, and data availability protocols. Its solutions enable fast transactions at near-zero gas fees, secure relationships between users and decentralized apps, and the building of Ethereum Layer 2s with industry-leading technology. Polygon was formerly known as Matic Network. It was founded in 2017 and is based in Camana Bay, Cayman Islands.

Optimism is a technology company focused on blockchain infrastructure and the Ethereum ecosystem. The company offers a platform for deploying decentralized applications and custom blockchains, as well as contributing to the development of its open-source infrastructure, the OP Stack. Optimism primarily serves the blockchain and cryptocurrency sectors, with a particular emphasis on supporting Ethereum's scalability and adoption. Optimism was formerly known as Plasma Group. It was founded in 2019 and is based in New York, New York.

mintBlue is a company focused on providing enterprise infrastructure for decentralized storage and authentication, operating in the blockchain technology sector. The company offers services such as immutable storage and identity authentication, enabling organizations to have absolute control over their data. mintBlue's services are primarily utilized by product teams in various sectors, particularly those requiring large-scale data control. It was founded in 2021 and is based in Amsterdam, Netherlands.

Boba Network is a multichain layer 2 optimistic rollup focused on blockchain scaling and interoperability. The company offers a hybrid blockchain platform that integrates off-chain data and compute to enable the development of smarter applications. Boba Network primarily serves the blockchain and decentralized application development sectors. It was founded in 2021 and is based in San Francisco, California.

zkSync focuses on scaling the technology and ethos of Ethereum, operating in the blockchain and cryptocurrency industry. It offers a Layer-2 protocol that enhances Ethereum's throughput while preserving its core values such as freedom, self-sovereignty, and decentralization. zkSync's services include facilitating the exchange of fiat currencies for cryptocurrencies, reviewing transactions, blocks, contracts, and more, and providing a platform for the development of apps and solutions within the zkSync ecosystem. It is based in Amsterdam, Netherlands.

SKALE Labs operates in the blockchain technology sector, focusing on providing scalable and fast blockchain solutions with a high-level emphasis on zero gas fees and EVM compatibility. The company offers a modular, on-demand blockchain network that enables developers to deploy interoperable EVM-compatible chains quickly, ensuring secure and decentralized applications with features like instant finality and on-chain file storage. SKALE primarily caters to sectors such as Web3 gaming, decentralized finance (DeFi), and other blockchain-based applications. It was founded in 2018 and is based in San Francisco, California.