Holo is a decentralized hosting provider that is built on top of Holochain. DApps can be set up and deployed with Holo hosting, as a decentralized alternative to Amazon Web Services, or other centralized hosting solutions.
Holochain is a protocol for creating decentralized Apps and is different from blockchain protocols in several ways. The main difference being that Holochain takes an agent-centric approach to their consensus mechanism, and has a different approach to validating value transfers.
The HOT token is used for paying for hosting services on Holo, and users can be paid for offering their computing resources.

IOST (Internet of Services Token) is a blockchain platform that is focused on improving transaction speed and scalability. IOST has a unique Proof of Believability consensus mechanism that is based on past contributions and behavior.
The company claims that their platform will increase security and efficiency compared to other platforms. IOST uses a sharding technique that splits the network into smaller ones and randomly assigns tasks for the nodes on the network.

Komodo is a blockchain building platform that is focused on developing anonymity and security focused solutions. Komodo's platform, which was originally a fork of ZCash, is powered by the KMD token, and enables users to send anonymous transactions. Komodo has a delayed Proof of Work consensus algorithm.
Komodo also operates Chainmakers and Chainzilla; which assist clients in creating their own blockchains, decentralized applications, and initial coin offerings. Komodo also provides services related to wallet integrations and blockchain security.
Komodo held the first ever decentralized ICO and pioneered the concept of a dICO. Their goal is to allow users to more easily build blockchain solutions and decentralized exchanges. They are developing a decentralized ICO (dICO) platform as well as a decentralized exchange platform called BarterDEX.