Indeed, there are a few companies that can help you with this[0][1], even bigger ones like TI. It is somewhat expected that you are driving this, though. There are plenty of resources on the internet about every step to production.

[0] https://www.baldengineer.com/arduino-prototype-into-product.... [1] https://www.postscapes.com/forum/arduino/47-if-arduino-is-fo...