Founded seven years ago, Warmly, has reached $7.5M ARR with 400 customers. It has seen accelerating penetration within the HubSpot ecosystem, which has grown to represent more than half of its customer base in just two years.
At the core of Warmly, is website visitor intelligence, a capability now claimed by many vendors as a checkbox feature, but with widely varying degrees of accuracy and coverage.
Warmly, has built a strong reputation here, claiming ~60% company identification and ~45% person-level identification. But HubSpot already had a strong foundation in this area through its Clearbit acquisition.
The differentiation in Warmly, is not the visitor identification, but what is done with it.
Where Warmly, shines is its ability to operationalize these signals into real-time GTM workflows. After intent scoring, it can trigger actions across the revenue stack, including Slack alerts, CRM updates, lead routing, sales task creation, AI chat engagement, and ad audience activation.
Again, HubSpot already offers a Customer Agent that can be configured to qualify inbound leads. In its most recent earnings call, the company actually reported 2x adoption growth, reaching 2,500 customers and roughly doubling usage. However, this agent is primarily oriented toward customer service and support scenarios.
Warmly,’s approach is more purpose-built and modular. A TAM Agent identifies and enriches new prospects and records them in systems of record, a Signal Agent monitors website engagement and buying intent, and an Inbound Agent captures and converts visitors in real time by triggering the appropriate workflows, with all three working in concert. The result is not just enriched visitor data, but coordinated GTM execution across sales and marketing systems.
This acquisition mirrors the one of Qualified by Salesforce: the same core use case around inbound engagement and demand capture, and a similar approach based on specialized, purpose-built agents.
It also reflects HubSpot’s continued move towards building an integrated revenue stack.