Neblio (NEBL) is a project that is developing an open source enterprise blockchain solution. This solution will be a secure and distributed platform upon which businesses can develop their own applications. Neblio is joining a long list of other projects such as Ethereum's Enterprise Ethereum Alliance (EEA), Hyperledger Fabric and R3 Corda that are working on similar enterprise blockchain development networks. Check out CoinBureau for the full review of Neblio project.
FLETA is a blockchain platform that aims to offer infrastructure that can be applied to real-world business models. FLETA has its own core blockchain technologies like Level Tree Validation, Parallel Sharding, Independent multi-chain Structure, Block Redesign, and PoF(Proof-of-Formulation) which is its own consensus algorithm. With them, it aims to solve problems that existing platforms have such as slow speeds, scalability limitation, and excessive fees and provide a flexible development environment.