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.

Hyperion is developing a decentralized mapping platform that will ensure user privacy and provide map services for DApps. The platform will give users incentives to contribute location data and will have a community governance model. The Hyperion network is powered by the Ethereum-based HYN token.

Nethereum is an open source .NET integration library for Ethereum. It is designed to help developers easily integrate the Ethereum blockchain into their .NET applications. It consists of modular libraries for features that are covered are writing smart contracts, cryptographic wallets, DApps, and managing blockchain data.