Companies / Weights & Biases
Weights & Biases
San Francisco, United States
Weights & Biases provides a platform for developers to build and manage AI applications and models.
Weights & Biases, based in San Francisco, United States, has 8 investors on file, among them AIX Ventures, Archerman Capital and Felicis. Its site was last checked 6 Nov 2026: site answers.
SEC Form D filings
1 filingFiled by Weights & Biases, Inc. with the SEC. A Form D reports a private offering; it is not a priced round.
Investors
8 investors on file| Investor | Evidence | Type |
|---|---|---|
| Portfolio page | Venture capital | |
| Portfolio page | Venture capital | |
| Portfolio page | Venture capital | |
| Portfolio page | Venture capital | |
| Portfolio page | Venture capital | |
| Portfolio page | Venture capital | |
| Portfolio page | Venture capital | |
| Portfolio page | Venture capital |
A company is shown only after its own site answers and carries its name. Sites are checked again on a schedule, because domains lapse and get bought. Round stages and dates come from Fundup AI; investor links come from portfolio pages and rounds; other facts name their source when you point at them. How we grade the data
Get Weights & Biases and its investors as data
Look up any company's investors, or any investor's full portfolio, through one API key or MCP. A free account also opens Ask AI searches and alerts when AIX Ventures adds a company.
Work email, sign-in link by email. Already have an account? Log in- Ask AI5 plain-English investor searches a day
- Full listsEvery portfolio row and two-firm overlap
- API and MCP100 REST or MCP calls a month, one key
- AlertsFollow 5 investors for portfolio and fund changes
$ curl -H "X-API-Key: YOUR_KEY" \
https://api.vcinfo.io/v1/companies/wandb.ai/investors
# also
GET /v1/companies/wandb.ai
GET /v1/companies/wandb.ai/news