Metaverse is a blockchain platform that is being developed by the Chinese company ViewFin. Metaverse has a very ambitious scope and aims to combine a variety of blockchain functionalities in one comprehensive Blockchain-As-A-Service platform. They aim to build a smart contracts platform, similar to Ethereum or NEO, that will also enable users to register their digital identities and integrate real-world data.
Metaverse has three types of ledgers: asset ledgers, identity ledgers, and data feed ledgers. The platform can be used as an intermediary with real world data and also has a decentralized exchange where assets can be traded.
Metaverse is powered by the ETP token.

Kaleido is a blockchain business cloud service provider. It offers developers a platform to more easily build and manage blockchains that work across Microsoft Azure and Amazon Web Services. Users can create and customize private chains that fit their needs. It is designed to be a general purpose platform that can be used across industries. Kaleido is a Consensys company.

Ardor is a blockchain development platform that was created by Jelurida. The Ardor blockchain operates as a Blockchain-as-a-Service solution that can be implemented with minimal programming knowledge. Ardor's unique architecture separates the blockchain into parent and child blockchains. The parent blockchain only stores information that is directly related to maintaining the consensus of the overall network, with a Proof-of-Stake (PoS) mechanism. All other details related to smart contracts, including applications, governance mechanisms, and asset exchange, are stored on the child chains. This significantly limits the overall blockchain size, and also allows child chains to be used for specific purposes.