Stack AI Raises $16M to Help Enterprises Build Secure Custom AI Agents

Stack AI powers workflows for customers like Nubank, LifeMD, Granite Inc, MIT Sloan, and Cardlytics, transforming how organizations build and deploy intelligent automation securely at scale.

Company Name: Stack AI
Location: San Francisco, CA
Industry: Agentic AI

Funding Details:

  • Amount: $16M (Series A)
  • Investors:
    • Lead: Lobby VC
    • Participants: LifeX Ventures, Gradient, Y Combinator, Epakon Capital
    • Angels: Guillermo Rauch (CEO of Vercel), Bob Van Luijt (CEO of Weaviate), Soma Capital, True Capital Ventures

Purpose of Investment:

  • Enhance agent retrieval quality
  • Expand LLM tool access
  • Support secure on-prem deployment

Leadership:

Product:
Stack AI provides a platform for enterprises to create custom AI agents capable of connecting to over 100 data sources (e.g., SharePoint, Snowflake, Salesforce, Confluence). These agents are used for:

  • Knowledge management
  • Data entry and categorization
  • RFP response generation
  • Investment memo research
  • QA auditing
  • Sales reporting and onboarding

Supports 30+ LLM providers, with SOC 2 Type 2, HIPAA, and GDPR compliance, and can be deployed in on-prem or VPC environments.

About Company:
Launched in April 2023, Stack AI has grown to a team of 13 from MIT, Meta AI, NASA, BCG Gamma, and IBM. The platform powers workflows for customers like Nubank, LifeMD, Granite Inc, MIT Sloan, and Cardlytics, transforming how organizations build and deploy intelligent automation securely at scale.

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