Microsoft already partnered with Lisk, eventhough Lisk is not launching until May 24:
https://azure.microsoft.com/en-us/blog/azure-blockchain-update-6/
No billion dollar company has started using Ethereum, even after 2 years of its existence. Some companies CTOs may be toying around and entertaining Ethereum to impress their corporate board and investors, but NONE have actually started using Ethereum in day to day business operations.
Ethereum = Zero Mainstream Usage AFTER 2 YEARS.
http://www.ibtimes.co.uk/deloitte-build-ethereum-based-digital-bank-new-york-citys-consensys-1557864
TL;DR version: Consultancy giant Deloitte has announced PLANS to create a private blockchain based digital bank with the help of Ethereum.
Deloitte CTO Bill Briggs is a typical CTO that would drag his company into any hyped technology to keep his job relevant and secure:
https://www.youtube.com/watch?v=bsuxiL_INfE
Again: PLANS and nothing more than PLANS... Ethereum has made ABSOLUTELY NOTHING that has gone mainstream yet.