What it is

Sumble is a knowledge graph of companies built mostly from public web data: job posts, company websites, social media and regulatory filings. An LLM pipeline reads those sources and turns them into structured records. For each account you get the technologies it uses, the teams that use them, the projects it is staffing, and the people and reporting lines behind them. Each fact links back to its source, usually a job post. It belongs in the same buying decision as ZoomInfo and Apollo, but it starts from what a company is building, not from a contact list.

Anthony Goldbloom and Ben Hamner, the co-founders of Kaggle (which Google bought in 2017), launched Sumble in April 2024. It came out of stealth on October 22, 2025 with $38.5 million: an $8.5 million seed led by Coatue and a $30 million Series A led by Canaan Partners, with Marc Benioff and Nat Friedman among the angels. TechCrunch reported about 2.6 million companies in the graph, 19 enterprise customers including Snowflake, Figma, Wiz, Vercel and Elastic, and roughly 550% year-over-year revenue growth (TechCrunch’s estimate; Sumble does not publish revenue). We found no acquisition or shutdown news from the past 12 months.

The question this page answers: how do I target accounts by what they are building, not by headcount and industry? For that job, Sumble is the tool we would test first.

Why it shows up in RevOps stacks

Technographics with receipts. A tech-stack hit links to the job post it came from, so a rep can open the evidence before writing an email. Install-base vendors infer the stack from website scripts and return a yes or no.
Teams and projects, not just companies. You can filter for accounts staffing a specific project (a Snowflake-to-Databricks migration, say) and see which team owns it and who leads that team. Project filters and reporting hierarchy are Pro features.
Signals from hiring. Sumble raises signals when a target account posts roles that mention your category, when a champion moves, or when a new hire lands. Free users get 7 signals a week, Pro up to 20 a day, and Enterprise defines signals company-wide.
Agent-ready. The MCP server works with Claude, Claude Code, ChatGPT, Cursor and Gemini CLI. It exposes about 40 tools, from FindMatchAndEnrichOrganizations to RunSqlQuery, and refuses any request above 500 credits until you confirm it.
Inside Clay. Since December 2025 Clay has a Sumble “Enrich Company Technology” action that returns verified technologies with the source job-post links. A team can keep Clay as its orchestration layer and use Sumble only for the tech-stack step.

Pricing reality

As checked on 2026-10-23, Sumble has three plans. Free includes 500 credits a month, tech and firmographic filters, and a basic Slack integration. Pro costs $99 per user per month with 9,900 credits, which works out to about 1 cent per credit. It adds project filters, people, reporting hierarchy, full-text search, outreach drafts and the MCP server. Signing up with a work email gets you 30 days of Pro for free. Enterprise is quoted, and it is the plan that lists Salesforce, Snowflake and Databricks data integrations, Salesforce workflow integration and webhooks.

Credits pay for rows and fields. A web-app organization export costs 1 credit per row plus 1 per paid column. On the API, an email reveal costs 10 credits (about $0.10 at the Pro rate), a phone number 80 credits (about $0.80), and an AI intelligence brief 50 credits. Worked examples at the Pro rate:

Account research only: a 2,000-account technology export with two paid columns costs about 6,000 credits. That fits inside one Pro seat’s month.
Accounts plus emails: add 300 email reveals and the month needs 9,000 credits. That is still one seat.
Phone-heavy use: 300 phone numbers is 24,000 credits, about $240 and more than twice one seat’s allotment. At that volume, buy phones from a contact database.

A three-seat Pro team pays $3,564 a year at list price before any extra credit packs. We found no public contract benchmark for Enterprise. Packs above 25,000 credits go through sales.

Best for

RevOps and sales leaders at B2B software and data-infrastructure vendors whose ICP is defined by the buyer’s stack and live projects. Typical teams sell to engineering or data teams and today build target lists by hand from job boards.

Not for you if your buyers rarely post jobs (small businesses, most non-tech industries) or if your main need is phone numbers at volume. Sumble’s signal comes from hiring, so a company that doesn’t hire leaves little to read.

Versus the alternatives

ZoomInfo is the share leader in B2B contact and intent data, with contracts often in the tens of thousands of dollars. Pick it when reps need audited contact depth and org charts across all industries. Pick Sumble when the targeting question is what a company is building and the budget is a few Pro seats.
Apollo is the other share leader: a low-cost database plus sequencing from $49 per seat per month on annual billing. Pick it when reps need contacts and outreach in one tool. Sumble has no sequencer, so it feeds Apollo or Outreach rather than replacing them.
Crustdata is the fast-growing agent-first data API, with $10 million ARR on its homepage. Pick it when code or an agent consumes people and company data at volume, with live refresh and job-change webhooks. Pick Sumble when you need tech, team and project context more than contact freshness.
Ocean.io builds lists by similarity to your best customers. Pick it when your ICP is “companies like our closed-won.” Pick Sumble when your ICP is “companies running X and hiring for Y.”

If none of these fits, write your ICP as three observable facts first. If none of those facts is a technology or a hiring pattern, Sumble’s graph has little to work with. Start with technographic data and ICP definition.

Watch-outs

Coverage follows hiring. A company that doesn’t post jobs can show a thin or outdated tech stack. Guard: before you buy, run 50 accounts whose stack you already know through the free tier and count the hits and misses.
Phone reveals drain credits. At 80 credits, one phone number costs 8 email reveals. Guard: reveal emails by default and limit phones to tier-1 accounts, or buy phones from your existing contact provider.
Credits don’t roll over. Monthly allotments reset every billing cycle, and purchased credits expire 3 months after purchase. Guard: buy small packs close to when you need them, and size seats to steady monthly use.
CRM and warehouse sync sits on Enterprise. The pricing page lists Salesforce, Snowflake and Databricks integrations only on Enterprise. Guard: on Pro, move data through Clay or the API into your CRM, and price Enterprise before you promise reps native Salesforce fields.
Few independent reviews. G2 shows a single review and says it has too few to give buying insight. Most “Sumble alternatives” content is written by competitors. Guard: treat the 30-day Pro trial as the evaluation, and judge by the share of your target list Sumble can explain with evidence.

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