Switcheo is a DEX that supports tokens from Ethereum, EOS and NEO blockchains. They recently just published a podcast done between Nomics and Switcheo CEO which can be found here:
https://blog.nomics.com/flippening/multi-chain-dex-ivan-poon-switcheo/In this very informative podcast, the CEO talks about interoperating more blockchains with only 1 side-chain that will be built similarly to the Binance Chain, but a decentralized one. The podcast also discusses how they built their exchange and what Switcheo will be amongst the many exchanges. (Hence -> The Iphone of Exchanges")
With so many DEX falling into regulations, this team has big ambition. Interested to see what Switcheo will bring to us in the decentralized space.