1. Amazon AWS.
https://aws.amazon.com
2. Google Cloud.
https://cloud.google.com
3. Microsoft Azure.
https://azure.microsoft.com/en-us/
4. Tapis Cloud API.
https://tacc-cloud.readthedocs.io/projects/agave/en/latest/
5. Stubbs, J., et al.: Tapis: an API platform for distributed computational research. Futur. Gener. Comput. Syst. (2020)