CanonChain is developing an underlying blockchain protocol based on Fog networking and a Proof-of-Participation (PoP) consensus mechanism. Their network is designed to provide incentives for contributing computing resources on fragmented networks, and is powered by the Ethereum-based CZR token, known as Xuanchi.

Tokenomy is an Ethereum-based tokenization platform and exchange. It allows users to transform anything with value into a digital token, and then list it on their exchange.
The network is powered by the TEN token.

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.