So far I know Bridges, which seem to be good. You can look for "Bridges HK". Not really sure how they are compared to other. I just know some people who are working with them.
To the rest:
When it comes to accounting and auditing HK is really a pain. Especially those offered by the companies who are︀ helping you to set up the Limited. I would even consider it as a scam.︁ Some of them are charging crazy amounts for auditing and accounting. However, I know people︂ who are paying less than 5% of tax per year without any tax exemption.
I think accounting can be outsourced or done by the CEO himself. I wouldn't go with︃ the provider, but as far as I know the auditing has to be done by︄ an licensed Hong Kong auditor. Also with this I wouldn't really go with provider. There︅ are many auditors in HK who are charging less. Just a bit hard to figure︆ out these legit auditors.