Anthropic

Frontier lab United States Privately held, venture-funded

Public-benefit corporation publishing the Claude family. All weights are closed and API-served, so entries are catalogued from third-party measurement with no hash of our own.

Who they are

Anthropic is a frontier lab based in the United States, documented at anthropic.com. All weights are closed and API-served, so entries are catalogued from third-party measurement with no hash of our own.

How they are funded

Privately held, venture-funded. Public-benefit corporation. Its two largest investors are cloud providers that also resell its models. Raised a $65bn Series H in May 2026 and filed a confidential draft registration statement with the SEC on 1 June 2026 for a proposed IPO. Still private: as with OpenAI, a confidential filing is a preparation, not a listing.

Amazon	United States
Google	United States
Spark Capital	United States
Lightspeed	United States
Menlo Ventures	United States

Unverified. Ownership and funding are compiled from public reporting as of 2026-08. Unlike the hashes and signatures in this registry, Sovereign Frontier cannot attest any of it, and private-company funding changes faster than this page does. Treat it as a starting point for your own due diligence, not as evidence.

What they publish here

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