BlockFi is a crypto currency lending company founded in 2017 by Zac Prince in New Jersey, USA. Currently, more than 1 million individual investors and as many as 350 institutional investors have 10B $ under management on BlockFi. BlockFi is well known as one of the largest players in the cryptocurrency lending industry.
Hodlnaut is a CeFi company licensed by the Singapore Regulatory Authority (SFA). Their mobile app is easy to use, has excellent UI,UX, and interest rates offered are also among Top Level in lending industry.
Zipmex is an exchange and offers a high interest lending service. I also use Zipmex and it is the exchange where I place a lot of my funds. I would say it is the exchange I trust the most.