Zipper is developing a cross-chain messaging and transaction network. It's powered by the ZIP token. The company is backed by Qtum, OKEX, and other established blockchain companies.

Liquality is developing a cross-chain technology that will allow users to covert Ethereum to Bitcoin, and vice versa with minimal risk and fees, while maintaining control over their private keys. Their interface offers a secure way to exchange cryptocurrencies by using atomic swaps. Liquality is a ConsenSys portfolio company.

Wanchain is a cross-chain protocol for inter-chain transactions. It was originally a fork of Ethereum, but is now a completely separate blockchain called the WAN chain, that also has a Proof-of-Stake (PoS) consensus mechanism. Wanchain is designed to be a decentralized and interconnected platform to exchange digital assets across separate blockchains. It is meant to connect the growing number of blockchain projects and make them inter-operable.