There are a number of companies that are using Ethereum smart contracts. These include Microsoft, JPMorgan, and ING. These companies are using Ethereum to create a decentralized application (DApp) that will allow them to conduct transactions without the need for a third party.
This is possible because Ethereum allows for the execution of code on the blockchain, which is then stored on every node in the network. This makes it tamper-proof and secure.
Microsoft is using Ethereum to create a decentralized identity system that will allow users to control their own data. This is significant because it will give users the ability to control who has access to their data and how it is used. JPMorgan is using Ethereum to create a blockchain platform that will be used to settle payments between banks.
This will make payments faster and more efficient. ING is using Ethereum to create a system that will allow for the buying and selling of energy between households.
These are just a few examples of the many companies that are using Ethereum smart contracts. The potential applications of this technology are vast, and we are only beginning to scratch the surface of what is possible.