I need the bracket that mounts to the fan to the ceiling. The brand name I do not know but the SKU # is 547-578 and the model # is HL42QV-WH-LC30. Can you help me?

That looks like an Home Depot SKU. Trouble is there are different mounts for different fans. Check with them first.

Any idea on the brand

Any idea on the brand

6 digit SKU is typical to Home Depot . Either their brand or Hunter