[voxadam]

I think the closest thing that exists today is OpenWISP[1] but I haven't had a chance to check it out personally yet.

[1] https://openwisp.org/

[tekchip]

GL-iNet's firmware is openWRT based, has added features, a system to manage many routers and a bunch of models with varying form factors and features. https://www.gl-inet.com/ and https://www.gl-inet.com/solutions/goodcloud/

[Ballas]

Is it opensource? Many routers are based on openwrt, but are not in any way recognizable as such. (ex. Trendnet).

[voxadam]

Judging by their pricing section I highly doubt it.