V Systems is a blockchain platform that was developed by Sunny King, the creator of Peercoin and Primecoin. Peercoin was one of the first Proof of Stake Coins, and V Systems is designed to improve upon the consensus mechanism with a better staking system.

NEAR Protocol is a decentralized application platform designed to make DApps operable on the web. The NEAR network uses a Proof of Stake consensus mechanism called Nightshade. The NEAR utility token is used for processing transactions and storing data, as well as for facilitating voting for governance issues.
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Cryptaur is a Lithuanian company that is buildingg an Ethereum based payment and DApp development network. Cryptaur does not appear to have any distinct advantages over other decentralized networks. Cryptaur has plans to create a social capital management system that will be based on their Proof of Contribution algorithm.