Refereum is developing a blockchain-based affiliate referral ecosystem that is focused on gaming. Their goal is to develop a decentralized affiliate marketing platform that will be powered by the Ethereum-based RFR token, and will enable on-chain attribution for marketing engagements. Refereum places an emphasis on gaming, and their platform allows game developers to create incentivized quests that reward game players for completing in-game tasks.

RefToken is developing a decentralized affiliate program that will connect DApp developers with marketers that will distribute their DApps to users. Their smart contract enabled network will be powered by the Ethereum-based REF token, which will be bought by merchants and held in escrow by RefToken. Marketers will then be paid for each conversion that they deliver, according to the terms of the predetermined smart contract. The network will implement a review and rating system.

MetaX is an AdTech company that is developing a blockchain-based digital advertising platform. They created adChain and adToken to serve as a decentralized solution for digital advertising. Their Ethereum-based adToken (ADT) powers the adChain registry.