2Key network is a blockchain based platform for building referral campaigns. 2Key allows users to create and manage online campaigns that are powered by smart contracts. The Ethereum based 2KEY token is used to activate campaigns and to reward users for their participation.

Patron is developing a blockchain-based marketplace for social media influencers. It will serve as a dedicated ecosystem, based on crypto payments, for brands, influencers, and their fans. Patron hopes that their decentralized network will create new opportunities for influence marketing. Users with significant social media followers will be paid with PAT tokens for marketing brands and sharing content.

ClearCoin is developing a smart contract based advertising and media buying platform, built on Ethereum. Powered by the XCLR token, ClearCoin connects advertisers and publishers in a media buying network that uses blockchain to add efficiency and transparency to the media buying process.