I have dived with Scuba Center Asia (2017)
Besides the well run business, an example of their commitment to the place is that they provide a local lunch between dives, to help support the local community. This is served in 'tupperwear' style containers that can be reused (no single use plastic!)
They also engage with diving practices that are considerate to the marine life (eg. make strong emphasis on how watch, and not chase, a manta)
The location of the shop is also on the quieter section of the island, and there are ferries that take you directly to that side of the beach.
Let me know if you would like more details.