i.e. take this format
company_name,service
Johns Refuge,Normal Pickup
Johns Refuge,Bulk Pickup
Johns Refuge,Tree Removal
Bobs Limited,Normal Pickup
Bobs Limited,Bulk Pickup
and output
company_name,service
Bobs Limited,"Normal Pickup,Bulk Pickup"
Johns Refuge,"Normal Pickup,Bulk Pickup,Tree Removal"