HubSpot is the leading AI-powered customer platform in 2026, integrating CRM, Marketing, Sales, Service, Content, Operations, and Commerce Hubs into one unified system. It features Breeze AI agents for automation, powerful free CRM/tools, extensive integrations (2,000+ apps), and scalable plans for businesses of all sizes. Ideal for marketing, sales, and service teams seeking growth through connected data, automation, and insights.