This one is made by the City of Zion and backed by NEO council .
"Neon Meta Exchange (NEX), is a decentralized exchange project, founded by four CoZ Council members, namely Canesin (Founder of CoZ), Ethan (Neon wallet creator), Luciano (NeoScan creator) and Fabian (fabwa).
“NEX platform is built on a completely new protocol developed within the NEO ecosytem, utilising the best features NEO platform has to offer. NEX will consist of a reference exchange application, which will make it easy for developers building exchanges and payment services, to integrate with the NEX protocol. This project will possess a high level of innovation, building upon research done by Erik, on superconductive exchange technology.”
NEO Council will be investing in the token sale of the NEX utility token that will occur at the end of this year, or at the beginning of 2018. In order to execute this token sale, we will be developing a brand new token sale system, that will be open-sourced with a MIT license, and donated to CoZ. This token sale system will include frontend, backend, and smart contract implementations.
Furthermore, the NEX project will be the first project to utilise the token sale legal framework, developed by the NEO Council. As seen above, the NEX decentralized exchange project will fulfil two major milestones listed on the NEO roadmap.
At the moment, we are still evaluating designs for the project’s visual identity. Our landing page is scheduled to go live alongside the NeoScan update, which occurs in one week. Stay tuned for more information on the NEX project."
Pretty exciting stuff. They’re also integrating Loopring in this exchange.