Salvatore is an employee of Redis Labs since 2015. AFAIK he still owns Redis itself personally, which is a very good thing.

That doesn't mean Redis Labs is the only Redis provider you should consider though. For instance, OpenRedis has been founded before Redis Labs (early 2011) by people who have been very involved with the community (contributed the Ruby and Lua clients, the original website...). They are a much smaller company than Redis Labs (bootstrapped, when Redis Labs raised over $50M...) so it wouldn't make financial sense for them to have Salvatore on their payroll.

EDIT: Salvatore himself is addressing this on Twitter right now. https://twitter.com/antirez/status/1032192722755571714