A list of serverless frameworks (programming languages to build serverless functions with) and serverless platforms (hosting and execution of those functions).
Serverless Frameworks
Architect - JavaScript / NodeJS
Declaratively define next generation cloud infra with plain text. Build database backed web apps rapidly. Execute long running background tasks (15min), queues, and scheduled jobs. All open source.
ClaudiaJS - NodeJS
Laravel Vapor - PHP
Bref - PHP
ServerlessDotCom - JavaScript / NodeJS
Serverless Platforms
Amazon Lambda
Google Cloud Serverless
Azure Serverless
https://azure.microsoft.com/en-ca/services/functions/