# CoreWeave

CoreWeave declares [2 subprocessors](https://thirdpartyindex.com/vendors/coreweave#subprocessors) in [its subprocessor list](https://docs.coreweave.com/policies/terms-of-service/sub-processors), which we last checked on 2026-11-11 ([evidence](https://thirdpartyindex.com/evidence/165885)). They are [Microsoft](https://thirdpartyindex.com/vendors/microsoft) and [Backblaze](https://thirdpartyindex.com/vendors/backblaze). No published changes since we first read it on 2026-09-22. [14 tracked vendors](https://thirdpartyindex.com/vendors/coreweave#used-by) name CoreWeave as a subprocessor, including [OpenAI](https://thirdpartyindex.com/vendors/openai), [Cloudflare](https://thirdpartyindex.com/vendors/cloudflare) and [Fireworks](https://thirdpartyindex.com/vendors/fireworks).

CoreWeave (coreweave.com): subprocessors, data processing agreement, security documents and changes, as monitored by Third Party Index.

- Page: https://thirdpartyindex.com/vendors/coreweave
- Documents last verified: 2026-11-11
- Transparency rating: 87/100 (how much it publishes, not how secure it is): Subprocessor list 30/30; Processing locations 8/8; Purposes 0/7 (partial); Data processing addendum 12/12; Trust center 8/8; Privacy policy 6/6; security.txt 0/6 (not found); Security page 5/5; Status page 5/5; Vulnerability disclosure 5/5; Pages still reachable 8/8
- Companies part of it: [wandb](https://thirdpartyindex.com/vendors/wandb)
- Supply chain: relies on 2 tracked vendors directly, 41 within two hops, 257 within three; 14 tracked vendors rely on it directly, 1503 within two hops, 2757 within three
- Cite as: CoreWeave, Third Party Index, https://thirdpartyindex.com/vendors/coreweave (data CC BY 4.0)

## Documents

| Document | URL | Last verified | Last changed |
|---|---|---|---|
| Trust center | https://coreweave.com/trust | 2026-11-11 | 2026-11-11 |
| Subprocessor list | https://docs.coreweave.com/policies/terms-of-service/sub-processors | 2026-11-11 | 2026-10-27 |
| Data processing addendum | https://docs.coreweave.com/policies/terms-of-service/data-processing-agreement | 2026-11-11 | 2026-09-22 |
| Privacy policy | https://docs.coreweave.com/policies/terms-of-service/privacy-policy | 2026-11-11 | 2026-09-22 |
| Terms | https://docs.coreweave.com/policies/terms-of-service | 2026-11-11 | 2026-09-30 |
| Security page | https://coreweave.com/security | 2026-11-11 | 2026-11-11 |
| Status page | https://status.coreweave.com/ | 2026-11-11 | 2026-11-11 |
| Security advisories | https://docs.coreweave.com/policies/information-security-advisories | 2026-11-11 | 2026-09-22 |

## Subprocessors (2)

As its own list states them.

| Subprocessor | Purpose | Location | Listed since |
|---|---|---|---|
| [Backblaze, Inc.](https://thirdpartyindex.com/vendors/backblaze.md) | — | United States | 2026-09-22 |
| [Microsoft Corporation](https://thirdpartyindex.com/vendors/microsoft.md) | — | United States | 2026-09-22 |

Read from ([evidence](https://thirdpartyindex.com/evidence/4592)). CSV: https://thirdpartyindex.com/vendors/coreweave/subprocessors.csv

## Security program

What CoreWeave, Inc.'s Form 10-K for fiscal 2025, filed Mar 2, 2026 (Item 1C) says, in its words (https://www.sec.gov/Archives/edgar/data/1769628/000176962826000104/0001769628-26-000104-index.htm).

- Led by: Chief Information Security Officer
- Board oversight: Board of Directors
- Frameworks named: ISO 27001, SOC 2
- Practices named: Penetration testing, Vulnerability management, Threat intelligence
- Engages outside assessors or consultants
- Reviews its suppliers' security
- Says no cybersecurity incident has materially affected it

## Web Technologies

CoreWeave's homepage made 245 requests to 39 domains, 17 services controlled by another company, and 1 domain not identified. Loaded on 2026-11-04 by a browser that accepted nothing; other visits may load more or less. What a page loads is not a list of who receives customer data.

17 third parties by category: Advertising 6 (Google Cloud, Amazon, StackAdapt, X Corp., Microsoft, Reddit, Inc.); Analytics 5 (Cloudflare, ZoomInfo, LinkedIn, Meta, Resonate); Marketing automation 3 (Adobe, 6Sense Insights, Inc., Clearbit); A/B Testing 1 (Webflow); Cookie compliance 1 (OneTrust); SEO 1 (BrightEdge). Each company that appears controlled by another organization is counted once, under the main category of the technologies detected from it on this homepage or, when none was, the category recorded from the company's own page (marked reviewed) or else the one it is usually detected as on other published homepages (marked as such); unclassified: none of these.

### Third parties (17)

- Webflow: 50 requests to website-files.com, d3e54v103j8qbb.cloudfront.net, intellimize.co; Intellimize, Webflow 1.6.0, jQuery 3.5.1
- Cloudflare: 49 requests to cloudflarestream.com, cloudflare.com, cloudflareinsights.com; Cloudflare Browser Insights, Cloudflare Stream, cdnjs
- Adobe: 34 requests to typekit.net, marketo.net, mktoresp.com; Marketo
- Google Cloud: 19 requests to google.com, doubleclick.net, googletagmanager.com, gstatic.com, ajax.googleapis.com, fonts.googleapis.com; DoubleClick Floodlight, Google Analytics, Google Font API, Google Hosted Libraries, Google Tag Manager
- 6Sense Insights, Inc.: 18 requests to 6sc.co, 6sense.com; 6sense
- OneTrust: 12 requests to cookielaw.org, onetrust.com; OneTrust
- ZoomInfo: 6 requests to zoominfo.com, zi-scripts.com; Zoominfo
- Amazon: 5 requests to amazon-adsystem.com; Amazon Advertising
- StackAdapt: 5 requests to stackadapt.com; StackAdapt
- X Corp.: 5 requests to t.co, twitter.com, ads-twitter.com; Twitter Ads
- LinkedIn: 4 requests to linkedin.com, licdn.com; Linkedin Insight Tag
- Meta: 3 requests to facebook.net, facebook.com; Facebook Pixel 2.9.435
- Microsoft: 3 requests to bing.com; Microsoft Advertising (its subprocessor list names it too)
- Reddit, Inc.: 3 requests to reddit.com, redditstatic.com; Reddit Ads
- BrightEdge: 2 requests to bc0a.com; BrightEdge 1.5.36
- Resonate: 2 requests to reson8.com, resonate.com; Resonate
- Clearbit: 1 request to clearbitscripts.com; Clearbit

### Unknown (1)

Domains not identified yet: pixeltracker.co

### First party (1)

- CoreWeave: 20 requests to coreweave.com; Adobe Fonts 1.21.0, Cloudflare, GSAP 3.15.0, Lenis 1.3.11, Open Graph, Priority Hints, Typekit 1.21.0, Webpack, core-js 3.13.1

11 tracked companies loaded by the homepage are not in CoreWeave's subprocessor list. A website can use a service without it processing customer data.

## Subprocessor of (14)

Tracked vendors whose own subprocessor lists name it, and what they say they use it for.

- [Baseten](https://thirdpartyindex.com/vendors/baseten.md): Cloud Compute
- [Cloudflare](https://thirdpartyindex.com/vendors/cloudflare.md): Workers AI
- [Cursor](https://thirdpartyindex.com/vendors/cursor.md): Inference Provider; Inference infrastructure provider for hosting and serving first party AI models.
- [Daytona](https://thirdpartyindex.com/vendors/daytona.md): Cloud Infrastructure
- [Decagon](https://thirdpartyindex.com/vendors/decagon.md): Infrastructure Provider providing hosting services, storage and AI services
- [Fireworks](https://thirdpartyindex.com/vendors/fireworks.md): Infrastructure Provider; \[CoreWeave Security & Compliance\](
- [marimo](https://thirdpartyindex.com/vendors/marimo.md): Notebook execution, kernel runtime, and application hosting for molab
- [Mistral](https://thirdpartyindex.com/vendors/mistral.md): Inference Provider; Products: All SaaS
- [OpenAI](https://thirdpartyindex.com/vendors/openai.md): Cloud infrastructure
- [Read AI](https://thirdpartyindex.com/vendors/read-ai.md): Compute Infrastructure
- [Replicate](https://thirdpartyindex.com/vendors/replicate.md): Cloud Hosted infrastructure
- [Rev](https://thirdpartyindex.com/vendors/rev.md): GPU training and inference cloud platform
- [Topaz Labs](https://thirdpartyindex.com/vendors/topaz-labs.md)
- [TypeSafe AI](https://thirdpartyindex.com/vendors/typesafe-ai.md): AI Infrastructure; Customer AI prompts are processed, but not stored, on compute nodes managed by CoreWeave

## Service status

Incidents it reported on its own status page.

- Last 62 days: 10 reported incidents (0 major or critical, 0 minor, 10 with no impact stated)
- Typical time to resolve: 4 h 28 min
- Status page last read: 2026-11-12
- Under way: Storage Service Degradation (no impact stated), since 2026-11-05 15:13 UTC
- Under way: Object Storage Service Degradation in US-EAST-04 (no impact stated), since 2026-11-02 16:59 UTC
- 2026-11-05: Storage Service Degradation (no impact stated)
- 2026-11-02: Object Storage Service Degradation in US-EAST-04 (no impact stated)
- 2026-10-22: Facility power incident impacting services in US-EAST-15A (no impact stated)
- 2026-10-13: Kubeconfig download failures (no impact stated)
- 2026-10-12: Object Storage and Shared File System volumes unavailable in US-CENTRAL-08A (no impact stated)
- 2026-10-06: Global CKS Console Outage (no impact stated)
- 2026-10-05: US-CENTRAL-09A Networking Incident (no impact stated)
- 2026-09-26: Object Storage Performance Degradation in US-CENTRAL-09A (no impact stated)

The subprocessor list as we read it on any date: https://thirdpartyindex.com/labs/time-machine/coreweave

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Third Party Index (https://thirdpartyindex.com) monitors vendors' public security and privacy documents and keeps each version as evidence. Data CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/); vendors' own documents are theirs. API: https://thirdpartyindex.com/api