Tizen Developers

Synchro is a new platform that allows developers to create cross-platform applications using JavaScript and the Node.js framework. You can use Synchro to create apps that install and run on devices, but where all of your application code runs in the cloud (including client interaction logic).

https://synchro.io/

If you want Tizen support, ask them and specify if it's for mobile, TV or IoT:

Twitter: https://twitter.com/synchrolabs

email: bob@synchro.io