To distinguish between a personal account and a business account, you can check your contact's profile to see which type of account they have. If they have a business account, you'll see one of the following listed in the profile:
Note: If you see a business account which is labeled as “Verified” or “Confirmed”, then please update the app to see the latest business account types.
We also provide you with the tools you need to control your experience with businesses. You can block business accounts and report them at any time, right within the chat (open the chat > tap the Menu Button > Report or Block).
Note: An "Official business account" does not indicate that WhatsApp endorses this business.