Sumble, a San Francisco-based startup founded by Anthony Goldbloom and Ben Hamner—the creators of Kaggle—has emerged from stealth with $38.5 million in funding to bring AI-powered context to sales intelligence. The company aims to solve a critical gap in the sales process: beyond raw data, sales teams need meaningful insights into what’s truly happening inside target companies. Sumble collects information from diverse public sources—including social media, job postings, corporate websites, regulatory filings, and tech stacks—to build a detailed, real-time picture of organizations. Using a knowledge graph powered by large language models, it connects fragmented data points to deliver actionable context such as department-level tech usage, ongoing projects, organizational structure, hiring trends, and key decision-makers. Unlike traditional sales intelligence tools that focus on basic firmographics or contact data, Sumble emphasizes depth and relevance. Its platform enables users to understand not just who works at a company, but what they’re building, where they’re investing, and what technologies they’re adopting—information crucial for crafting tailored outreach. Since launching in April 2024, Sumble has secured 17 enterprise clients, including Snowflake, Figma, Wiz, Vercel, and Elastic. It now has tens of thousands of users, with about 30% on paid Pro subscriptions. Growth has been fueled largely by word of mouth, often spreading rapidly within companies via Slack channels and teams, growing from a few users to hundreds within months. The startup’s traction and strong retention attracted investors including Coatue, which led an $8.5 million seed round, and Canaan Partners, which led a $30 million Series A. Additional backers include AIX Ventures, Square Peg, Bloomberg Beta, Zetta, and prominent angels like Salesforce CEO Marc Benioff and former GitHub CEO Nat Friedman. Goldbloom noted that many investors had prior ties to Kaggle, where some were board observers or early backers. He also clarified he stepped away from AIX Ventures before the investment in Sumble. Despite a crowded market—including players like Apollo.io, ZoomInfo, HubSpot, Outreach, and SalesLoft—Goldbloom believes Sumble’s defensibility lies in its evolving knowledge graph, which currently covers 2.6 million companies. The more data it ingests, the richer and more interconnected the graph becomes, creating a self-reinforcing advantage. He also sees a growing synergy between AI and data intelligence. Sumble’s structured data is designed to be easily queried by large language models, enabling users to ask complex questions—like “What tech stack does Apple use in its engineering teams?”—and receive grounded, accurate answers. “We believe AI will reshape the data vendor landscape,” Goldbloom said. “Having a knowledge graph that feeds context into LLMs will be essential.” Sumble offers its service as a web app and API, with a Pro tier providing CRM integrations, workflow automation, and real-time alerts for key developments at target accounts. As AI adoption grows, the company aims to become a foundational layer of intelligence for sales teams navigating complex, fast-moving enterprise landscapes.