Retool is a provider of a tool development platform intended to help build custom business tools without having any programming language knowledge.

Retool's platform is designed to allow companies to build custom business tools with limited programming-language experience.

Retool was founded in 2017 by David Hsu. The company is headquartered in San Francisco, California, with offices in New York City, London, and Seattle.


Retool provides developers with tools to connect all their databases, APIs, and internal systems, and make user interface building and all other ancillary work simple. The solution is hackable and extensible, giving developers the ability to use JavaScript and customize the last mile of every app.


Retool offers 90+ components (such as forms, charts, and tables) that come with built-in validation, accessibility and more. Developers can drag and drop to build whatever interface they need and don’t need to waste time building from scratch.


Retool connects to nearly anything with a REST or GraphQL API, and has built durable integrations for popular datastores, like PostgreSQL or MongoDB. Thousands of teams at companies like Amazon, DoorDash, Snowflake, and Brex collaborate around custom-built Retool apps to solve internal workflows.


Retool is backed by Sequoia Capital, Y Combinator, Elad Gil, Patrick Collison, John Collison, Nat Friedman, Jay Simons, Daniel Gross, Caryn Marooney, and others. The company raised $45M in Series C2 round on Jul 28, 2022. This brings Retool's total funding to $141M to date. The latest round pushed the company's valuation to $3.2B, up from $1.85B in previous financing raised in Dec 2021.



  • Year founded: 2017
  • Funding Info: $141M over 5 Rounds (Latest Funding Type: Series C2)
  • Yearly Revenue: NA
  • Employee Size: 201-500
  • Business Valuation: Valued at $3.2B as of Jul 28, 2022
  • City/Town: San Francisco
  • State: California
  • Country: United States
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