I don’t have a model specifically but companies like “Bob’s Red Mill” and “King Arthur” are employee owned and rather succesful. Though those are not tech companies I can’t imagine the base model being drastically different when adapted.
But https://www.nceo.org/research/employee-ownership-100
There's a lot. I didn't know brookshires was a cooperative
It's REI, and it's actually a consumer co-op owned by its members, not employee-owned.