Santiment is building a decentralized sentiment information market for blockchain assets. It combines machine learning, reputation systems, and sentiment analysis to better understand blockchain market trends. Santiment's goal is to allow users to buy and sell information related to crypto-crowd emotions, and to provide more access to financial data related to blockchain assets. The network will be powered by the SAN token.

Centrality is developing a marketplace for decentralized applications that will connect consumers and blockchain-enabled applications. The platform will allow developers to cooperate to achieve scale and to work together to acquire users. The peer-to-peer marketplace is powered by the CENNZ token.

Particl is developing a privacy-focused blockchain-based marketplace. The platform will include encrypted communication tools and a native confidential currency. It will also be integrated with other cryptocurrency projects. The Particl marketplace will have confidential transactions, escrow services, and a decentralized self-governance system. Their native blockchain has a Proof-of-Stake (PoS) consensus mechanism with quantum-resistant cold-staking.