Are these tour operators good or not?

I'm planning a longer trip for the winter. Does anyboby have any ideas if these tour operators are good or not, reliable or not, good service or not?

Dive Worldwide

Equatordiving

RegalDive

Thanks for your help!

Dive worldwide used to sell trips for an operator I used to work for. I know the guests paid and got a dive trip and we got paid as well.

I have never booked a trip with any of them.

Not widely known in the USA.