Ubiq is an Ethereum fork that aims to create a more stable smart contract platform for building DApps. Ubiq's protocol currently uses a Proof-of-Work (PoW) consensus mechanism, but will switch to Proof-of-Stake in 2019. The network is powered by the UBQ coin.
Ubiq's goal is to create a reliable and stable platform for developing DApps by modifying Ethereum's code base with important changes that will make it more secure and reduce instability. Consensus is based on their Flux Difficulty Algorithm, which is designed to constantly adjust the hash rate to protect against network attacks.

TomoChain is a DApp development platform compatible with Ethereum smart contracts. Their goal is to enable faster and cheaper transactions. Their network will have a Proof-of-Stake (PoS) consensus mechanism, with a system of 150 Masternodes. TomoChain will be compatible with Ethereum-based smart contracts, and will allow users to issue their own tokens. The company has offices in Singapore, Japan, and Vietnam.

RealTract is developing a smart contract platform based on a Directed Acylic Graph (DAG) protocol. They hope to create a faster and more scalable smart contract platform that can handle more use cases. The RealTract network is currently powered by the Ethereum-based RET token.