HubSpot implementation can cover a single hub or multiple hubs depending on the company's needs and subscription level. Most companies with cross-functional teams implement Marketing Hub, Sales Hub, and Service Hub together because the value of HubSpot comes from a shared database where every team sees the full customer journey. Single-hub implementations are less common outside very early-stage companies.
A multi-hub implementation connects marketing's lead generation workflows to sales' pipeline management and service's ticketing system, so data flows in one direction without manual handoffs. For software-as-a-service (SaaS) companies, this often includes Operations Hub as well, which syncs product data and third-party applications into HubSpot for a single source of truth. The scope is decided during discovery based on which teams will use the platform, what integrations are needed, and what reporting the leadership team requires. The goal is one connected system, not isolated tools running on the same login.