zkSync is a layer-2 scaling solution designed to speed up transactions and lower gas fees on the Ethereum network while maintaining high security and privacy for users. It does this through Zero-Knowledge Rollup (ZK-Rollup) — transactions on Ethereum are bundled up to be processed off-chain and then sent back to the main chain after validation.

zkSync is developed by Matter Labs. The company was co-founded in 2019 by Alex Gluchowski and Alexandr Vlasov. Matter Labs has raised over $58 million. Their latest funding was raised on 8th November 2021 from a Series B round led by Andreessen Horowitz (a16z). Other major investors include Dragonfly Capital, Placeholder, 1kx, and more.