Richer Sounds boss in £3.5m staff giveaway https://www.bbc.com/news/business-48269171
Nationwide is another example of a successful cooperative as well (large UK bank, particularly in the mortgage space). They're customer and employee owned I believe, my wife and I got £200 last year as a profit share for being customers.
I'm a huge fan of the model, but it's difficult to get going. I think they're also more expensive to run as their operations tend to be a little more complex.