HubSpot sells a cloud-based customer platform to mid-market B2B companies, roughly 2 to 2,000 employees. The platform is built around a Smart CRM — a unified database of customer interactions — on top of which sits six modular "Hubs" covering marketing, sales, customer service, content, operations, and commerce. Customers can buy one or more Hubs, and multi-hub adoption has become a key growth driver. HubSpot also embeds AI across the platform through its "Breeze" layer, which includes a co-pilot assistant, autonomous agents that handle support tickets, prospect accounts, and enrich CRM data, and connectors to third-party LLMs like ChatGPT and Claude. HubSpot is a subscription SaaS business, with a small professional services line. Revenue grows through three levers: net new customer additions (aided by a freemium entry point), seat expansion within the existing base, and an emerging credits-based model for AI agent consumption. HubSpot's Solutions Partner network of agencies and consultants influences roughly half of revenue. The company has been deliberately moving upmarket, pitching enterprise-grade capabilities with less implementation complexity than Salesforce. Growth priorities include broader multi-hub adoption, expanding its Core Seat CRM license to non-sales personas, scaling AI agent monetization through credits, and international expansion, with roughly half of customers and revenue coming from outside the U.S.