PayPie is developing a decentralized risk scoring solution and marketplace for invoices. PayPie will allow users to buy and sell invoices, and give companies an alternative funding solution for their immediate cash flow needs.
Paypie has a strong focus on usability and will integrate financial data from QuickBooks Online to encourage adoption. This will provide blockchain-based risk assessment, based on real-time business data. Invoice buyers will then be able to purchase invoices from these companies based on this information. The network will be powered by the PPP token.

Fetch.AI is developing a decentralized, AI optimized marketplace for data. Trading on their decentralized network will be performed by Autonomous Economic Agents (AEAs), that will execute transactions without human intervention. These agents will perform tasks, such as delivering data or providing services, and will receive Ethereum-based Fetch tokens as an incentive. Fetch.AI's Open Economic Framework (OEF) will use AI and blockchain to enable these autonomous agents to optimize trading activity in real time.

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.