Sybill was founded in 2020 to solve one of the most persistent problems in B2B selling: the hours sales reps lose to note-taking, CRM hygiene, and follow-up drafting instead of actually selling. Rather than producing generic call transcripts, Sybill builds a behavioral understanding of each conversation, combining what prospects say with how they react, then layering in deal context and publicly available buyer information to generate crisp, insightful summaries.

The core of the product is a meeting assistant that records and analyzes sales calls across Zoom, Google Meet, and Microsoft Teams. After each call, Sybill generates a structured summary tied to the seller's methodology, drafts a follow-up email that mimics the rep's personal writing voice, and pushes clean, field-mapped updates into the CRM without manual data entry. Over time this creates a reliable, searchable record of every deal interaction that managers and RevOps teams can trust.

Sybill's behavioral AI is a differentiator. By tracking engagement signals and buyer sentiment, it surfaces which moments in a call mattered most and where deals are gaining or losing momentum. That intelligence helps individual reps coach themselves and gives leaders visibility into pipeline health grounded in real conversation data rather than optimistic forecasts.

The company raised an $11 million Series A in July 2024 led by Greycroft, with participation from Neotribe Ventures, Powerhouse Ventures, and Uncorrelated Ventures, bringing total funding to roughly $14.5 million. In the eighteen months prior to the raise, Sybill grew revenue 15x, tripled headcount, and surpassed 500 customers, positioning it as a fast-growing player in the conversation intelligence and sales productivity space.