Blockchain Developer Mr. Shrikant Bhalerao in India:
BigchainDB: As you know, storing large amount of data on Blockchain is not a good idea. BigchainDB is implemented for the proper safety of data. It supports very fast transactions, around one million dealings per second.
IOTA Tangle: Tangle is a blockchain that targets IOT market and its transactions. It has no block and chains. It developed through Python Library and JS library. The technology is advanced and useful for the development of lightweight distributed ledger.
Hyperledger: Hyperledger is another Blockchain tool that developed by IBM and Linux foundation collectively. It is not a blockchain but as a hub for blockchain development. It is beneficial for new-generation of transactional software.