IBM's Blockchain Platform is the company's BaaS solution that it delivers through the IBM Cloud. It simplifies the process of deploying a blockchain-enabled application. IBM's platform has a number of unique features. These include, a pluggable architecture that allows developers to use software modules and a new consensus algorithm, that IBM developed, and is tailored to specific use cases. It also enables cryptographic identity management and smart contracts that can be written in popular programming languages, such as Java, and then executed in containers.
IBM is also involved with the Linux Foundation’s open-source Hyperledger Project, which was created to help developers easily build secure distributed ledgers that can be used to exchange almost anything of value.

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.

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.