S

Sumble

AI-powered account intelligence for GTM teams

Customer Success Manager

Full-Time
No salary listed
Mid
Remote in USA
RemoteRemote within the United States across US time zones.
Customer Experience & SupportCustomer Success

About the job

Requirements
  • Experience in customer success, account management, or a related post-sales role in B2B SaaS or technology, ideally with exposure to an early-stage or high-growth environment.
  • Ability to act decisively with incomplete information, close loops quickly, and iterate independently.
  • Resourcefulness in creating processes or workarounds when no playbook or tool exists.
  • Strong attention to detail, including maintaining accurate customer relationship management records and reliable follow-up.
  • Ability to work comfortably in an ambiguous and changing environment.
  • Strong analytical ability to analyze usage data, build account health models, and present findings clearly.
  • Clear, confident written and verbal communication skills with the ability to engage at the C-suite level.
  • Ability to collaborate effectively across Sales, Product, Support, and Engineering.
Responsibilities
  • Manage a portfolio of B2B accounts as the primary point of contact and trusted advisor throughout the customer lifecycle.
  • Build and maintain executive- and champion-level relationships within each account.
  • Deliver regular business reviews that connect product usage with customer outcomes and business value.
  • Monitor account health signals, including usage trends, support tickets, and stakeholder changes, and proactively intervene before risk escalates.
  • Maintain an accurate, up-to-date view of renewal likelihood across the portfolio.
  • Develop and execute mitigation plans for at-risk accounts in collaboration with Sales and leadership.
  • Identify organic expansion opportunities, including new use cases, additional seats, and adjacent products, and partner with Account Executives on upsell and cross-sell motions.
  • Build multi-threaded relationships within accounts to reduce single-point-of-failure risk and uncover growth opportunities.
  • Aggregate and synthesize customer feedback into prioritized product insights for Product and Engineering.
  • Represent the customer internally in roadmap discussions, QBRs, and sprint reviews.
  • Close the loop with customers when their feedback influences product decisions.
Desired Qualifications
  • Exposure to an early-stage or high-growth environment.

About the company

Sumble provides an AI-powered account intelligence platform for GTM teams, collecting public web data from social media, job postings, and company sites, then using a knowledge graph and large language models to turn signals into coherent narratives about target accounts. It gives sales teams a detailed view of org charts, technology stacks, hiring trends, and strategic projects to identify the right buyers and the best times to engage. The product is available as a web app and an API that integrates with existing CRM and workflow tools, with a Pro tier that adds real-time notifications and CRM connectivity. Sumble differentiates itself by prioritizing data freshness and precision, translating large public signals into timely, context-rich insights, with the goal of becoming a leading source of GTM intelligence that helps create more qualified leads and faster pipelines.

Company Size

11-50

Company Stage

Series A

Total Funding

$38.5M

Headquarters

San Francisco, California

Founded

2022

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Simplify's Take

What believers are saying

  • Sumble’s June 2026 hiring push signals continued engineering and growth investment.
  • Its API and MCP-ready docs support embedded workflows inside CRM and AI agents.
  • Customers report 700 net-new accounts and trusted scoring, proving operational ROI.

What critics are saying

  • ZoomInfo launched GTM AI on June 1, 2026, bundling context-layer features.
  • Apollo, Clay, and ZoomInfo compress pricing and workflow ownership across sales intelligence.
  • If data freshness slips, reps revert to incumbent databases and Sumble loses trust.

What makes Sumble unique

  • Anthony Goldbloom and Ben Hamner bring Kaggle’s data-signal discipline from 2022.
  • Sumble’s 2026 docs expose organizations, people, jobs, technologies, and intelligence briefs.
  • Customers like Nooks, Omni, and Atlan use Sumble for account scoring and TAM analysis.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Paid Vacation

Remote Work Options

Growth & Insights and Company News

Headcount

6 month growth

14%

1 year growth

14%

2 year growth

33%
Silicon Valley Daily
Nov 3rd, 2025
Sumble Launches With $38.5M Funding

Sumble has emerged from stealth with $38.5 million in Seed and Series A funding led by Canaan Partners and Coatue, with participation from Square Peg Capital, Zetta Venture Partners, Bloomberg Beta, AIX Ventures, and angel investors like Marc Benioff and Nat Friedman. Sumble provides granular, real-time intelligence on companies by ingesting web data, helping clients like Snowflake and Figma enhance their sales strategies with actionable insights. The company was founded by Anthony Goldbloom and Ben Hamner.

TechCrunch
Oct 23rd, 2025
Sumble emerges from stealth with $38.5M to bring AI-powered context to sales intelligence | TechCrunch

The founders of machine learning community Kaggle are trying to upend the crowded sales prospecting market with AI. And they're making headway.