Blockapps is a Blockchain-As-A-Service company that is part of the ConsenSys portfolio. Their platform provides a development environment that allows DApp creators to run a web app with a blockchain backend.

Hewlett Packard's blockchain as a service platform, called Mission Critical Distributed Ledger Technology (DLT), allows its customers to run distributed ledger processes on an enterprise platform. HP developed this solution in conjunction with R3, and is now offering it as a BaaS option to their enterprise customers.

Dragonchain is a blockchain platform developed by Disney. It was originally called the Disney Private Blockchain Platform. In 2016, Disney made the project open-source and shifted control of it to the Dragonchain Foundation.
It has a hybrid architecture that combines private and public blockchain elements. It's designed to make it easier for enterprises to develop smart contract powered DApps. They aim to facilitate business integration into blockchain.