Spot.io - Build web, mobile and IoT applications using AWS Lambda and API Gateway, Azure Functions, Google Cloud Functions, and more.
Nuclio - Nuclio is an open source serverless platform.
Codehooks.io - Fast and Easy NoSQL backend service which lets you use JavaScript to build instantly deployable database-powered APIs and microservices for your applications.
Fission.io - Fission.io is a serverless framework for Kubernetes that supports many concepts such as event triggers, parallel execution, and statelessness.
Google Cloud Run - Bringing serverless to containers
AWS Lambda - Automatic, event-driven compute service