Secondary categories are additional classifications a business can select on its Google Business Profile alongside its primary category, describing other relevant services offered, though generally carrying less ranking weight than the primary category.
Adding accurate, genuinely relevant secondary categories helps a business appear in a broader, still-relevant range of local searches beyond its core primary category alone.
Businesses should avoid adding irrelevant or overly broad secondary categories purely to appear in more searches, since this can dilute overall profile relevance and potentially violate Google’s guidelines.
Secondary category strategy is part of our Local & Map SEO service.