You need to do scraping or use scraping or similar service for that. While listing categories using GMB API returns all of them (unlike locations which you need to have management or ownership access to) - they don't contain any 'type' like you can see from documentation: https://developers.google.com/my-business/reference/businessinformation/rest/v1/accounts.locations#Location.Category. You can't access through GMB API the primary or additional categories of a location you don't own or manage. Also IIRC if more than one business it at the same address - the placeId is the same which can make things even more 'fun'. Sadly https://developers.google.com/my-business/reference/businessinformation/rest/v1/googleLocations/search didn't return enough information (no categories in the response) last time I've checked.