Cryptaur is a Lithuanian company that is buildingg an Ethereum based payment and DApp development network. Cryptaur does not appear to have any distinct advantages over other decentralized networks. Cryptaur has plans to create a social capital management system that will be based on their Proof of Contribution algorithm.

Smartlands is a Stellar-based tokenization platform designed to let users create tokens for a variety of use cases. The Smartlands platform will allow token issuers to manage many legal, compliance, and due diligence procedures. It will also enable tokens to be backed by collateral and held in escrow by a custodial service. Tokens created on Smartlands will be traded on their decentralized exchange that will be powered by the SLT token.

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.