Chromia is a relational blockchain platform that is designed to be both a blockchain and a relational database. Chromia was created by a Swedish development company called ChromaWay, with the intention of combining the advantages of a blockchain's transparency with the benefits of a relational database system, such as data independence and reduced redundancy.

Asch is developing a commercial blockchain ecosystem with multiple blockchains. The company is creating several SDK's and API's that will help developers build DApps that are based on JavaScript and customized sidechain architectures. The Asch network has a DPoS consensus mechanism that incorporates elements of PBFT for enhanced security.

Tendermint is a consensus algorithm that was created by a company called All in Bits. The open source algorithm is Byzantine Fault-Tolerant and uses an authenticated encryption system to secure transactions. The Tendermint consensus mechanism was developed in 2014 for the Cosmos Network. The Interchain Foundation, which is developing the Cosmos Network, continues to employ All in Bits to support Cosmos.