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.

Truffle is one of the leading providers of blockchain development tools. The Truffle platform consists of three tools that are designed to assist developers in creating DApps: Truffle, Ganache and Drizzle. Truffle is a testing framework for DApps using the Etereum Virtual Machine. Ganache allows users to easily create a personalized version of the Ethereum blockchain to run tests and execute commands. Drizzle is a collection of front-end libraries that help developers create user interfaces for DApps.

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.