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.

New Power Coin is developing a blockchain platform that they claim will provide a new source of internet traffic. They hope to use blockchain technology to improve internet targeting for advertisers and to giver users ore control of their personal data. The company's marketing materials do not provide very many details about their existing technology.
New Power coin uses the NeoScrypt algorithm as a Proof-of-Work (PoW) consensus mechanism. The network is powered by the NPW coin.

Adshares is developing a blockchain-based platform for programmatic advertising. They're goal is to create a decentralized marketplace to connect publishers and advertisers. Their advertising platform is based on their own blockchain, which is called the Enterprise Service Chain. It has a dPoS consensus mechanism and is powered by the native ADS coin.