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Exrates is a crypto exchange that was founded in 2016 which makes it an older crypto exchange. There is not much information about the founders but the site reveals that it is registered in Estonia under a company named DexTechnologies OU.
Quppy is a decentralized lending and payment service and the licensed multicurrency payment system. Quppy was developed in 2017 by recognized experts in banking, financial and information security, who previously worked for leading world companies. Quppy is a payment solution for all types of banking transactions with Bitcoin, Bitcoin Cash, Litecoin, Ethereum and fiat currencies in euros.
Radar Relay is the trading platform used for transactions with Ethereum tokens. The company is registered in Delaware, USA.