https://www.cnet.com/news/amazon-acquires-ring-in-a-bid-to-own-your-doorway/

As reported by Geekwire, Amazon has acquired Ring, the Santa Monica, California, company behind the Ring Video Doorbell. 

The surprise move follows Amazon's acquisition of security cam and doorbell maker Blink in December, and will bring Ring under Amazon's purview, while supposedly still allowing the company to operate independently.