Subprocessors
Last updated: April 21, 2026
Marimo uses the third-party subprocessors listed below to help deliver molab, marimo Community Cloud, and our marketing and public websites. We require each subprocessor to provide security and confidentiality protections consistent with our obligations to our customers.
Marimo is part of CoreWeave. Our services are delivered on CoreWeave’s infrastructure and are covered by CoreWeave’s Privacy Policy. The list below enumerates the additional third parties we use to operate our products.
Infrastructure subprocessors
| Subprocessor | Purpose | Location |
|---|---|---|
| CoreWeave | Notebook execution, kernel runtime, and application hosting for molab | United States |
| Cloudflare, Inc. | Edge workers, CDN, DNS, R2 object storage for notebooks and artifacts, and database connectivity | United States |
| Vercel Inc. | Hosting for the marimo.io marketing site, Community Cloud, and playground | United States |
| Modal Labs, Inc. | Fallback kernel runtime for notebook execution | United States |
Application subprocessors
| Subprocessor | Purpose | Location |
|---|---|---|
| Clerk, Inc. | User authentication, session management, and organization membership | United States |
| Weights & Biases, Inc. | AI-assisted code completion and notebook generation | United States |
| GitHub, Inc. | OAuth sign-in and importing notebooks from public repositories | United States |
Operational subprocessors
| Subprocessor | Purpose | Location |
|---|---|---|
| Functional Software, Inc. (Sentry) | Error monitoring, performance tracing, and debugging | United States |
| PostHog, Inc. | Product analytics and feature flagging | United States |
| Loops, Inc. | Transactional and marketing email delivery | United States |
| Notion Labs, Inc. | Collection of feedback and waitlist submissions | United States |
Changes to this list
We may update this page when we add, remove, or change a subprocessor. Whenever we make a significant change, we will refresh the date at the top of this page.
Questions
If you have questions about our subprocessors or how we handle your data, please email us at contact@marimo.io.