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Arize

Mill Valley, CA · Founded 2020 · Privately Held (backing)

Developer of an observability platform designed to discover issues, diagnose problems, and improve models. Arize is based in Mill Valley, CA and was founded in 2020. Its last reported valuation was $417 million in Jan 2025. It has raised $130 million.

Last reported valuation
$417.0M
Oct 2026
Priced at
—
Total raised
$130.2M
Last round
—

Arize key facts

as of Oct 2026
  • Developer of an observability platform designed to discover issues, diagnose problems, and improve models.
  • Arize is valued at approximately $417.0M as of Oct 2026 (last reported valuation).
  • It has raised $130.2M; the latest was Later Stage VC ($69.2M) in Jan 2025.
  • Notable investors include Battery Ventures, Foundation Capital, M12, Industry Ventures, TCV — 16 tracked in total.
  • 1 investment vehicle was formed to buy Arize shares in the last 12 months, reporting $3.0M sold to 23 investors, per SEC Form D filings.
  • Status: Privately Held (backing).
Last reported valuation
LOW confidence
$417.0M

Arize's last reported valuation, Jan 2025. Nothing priced has surfaced since.

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Arize funding rounds

No rounds on record

No funding rounds for Arize are on record yet — either the company hasn't raised institutional capital, or the raise hasn't surfaced in our sources.

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Vehicles formed to buy Arize shares

secondary demand · SEC Form D filings

In the last 12 months, 1 investment vehicle were formed to buy Arize shares, reporting $3.0M sold to 23 investors. Most recent filing May 2026.

The vehicle list — each sponsor, filing date, amount sold and investor count — is a Pro table. Unlock the 1 vehicle →

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Arize valuation

Arize's last reported valuation was $417 million in Jan 2025. No priced round, secondary trade or fund mark has surfaced since.

Institutional holders and vehicles

In the last 12 months, 1 investment vehicle was formed to buy Arize shares, reporting $3 million sold to 23 investors, per SEC Form D filings (most recent May 2026).

Arize investors

16 investors are on record for Arize, including Battery Ventures, Foundation Capital, M12 and Industry Ventures. By type, the record holds 5 venture capital firms, 3 growth equity firms and 1 fund of funds.

About Arize

Developer of an observability platform designed to discover issues, diagnose problems, and improve models. The company's platform offers real-time analytics that provide a wide range of information and utilize artificial intelligence technology, enabling clients to accelerate detecting and resolving issues, eliminate guesswork, and deliver continuous improvements.

Sector
Information Technology
HQ
Mill Valley, CA, United States
Founded
2020
Employees
135
Website
arize.com/
Ownership
Privately Held (backing)

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