World’s Top Private Cloud Software Rankings 2026

Snapshot 2026-09-15. The main table uses the tenth Forbes Cloud 100, dated 3 September 2025. The live Forbes page was still that edition on this date; Cloud 100 2026 had not been published. OpenAI is first at $300 billion. The pool is private cloud firms that have not listed. Infrastructure share sits in the cloud-provider rankings.

Cloud 100 top twenty

OpenAI and Anthropic take the first two spots. Stripe is third, Databricks fourth, Canva fifth. Ramp moves from No. 37 last year to No. 6. Anysphere debuts at No. 8 with Cursor. Notion is tenth. Bands follow rank: 1–5 S, 6–10 A, 11–20 B. Valuations are the Forbes-table figures. Keep them off the Hurun 2026 unicorn stick.

Ranks 21–50

These thirty rows are from the same official table. Checkout.com is $40 billion and No. 40. Miro is $17.5 billion at No. 18 and already sits above. Brex is $12.3 billion at No. 50. Zoho is $8.4 billion with a blank funding cell. Ranks 51–100 did not arrive as a full table. The intro names Harvey at 91, Sierra at 92, and Clay at 99; those ranks stay without valuations.

How this list is ranked

Snapshot 2026-09-15. The main table uses ranks 1–20 on the Forbes Cloud 100 2025, dated 3 September 2025, the tenth edition. Partners are Bessemer Venture Partners and Salesforce Ventures. The pool is private cloud firms that have not listed and have not been majority-acquired. The methodology page weights market leadership 35%, valuation 30%, operating metrics 20%, people and culture 15%. Rank is a composite: Checkout.com is $40 billion and still No. 40. Bands follow rank: 1–5 S, 6–10 A, 11–20 B, 21–35 C, 36–50 D. Ranks 51–100 did not come through as a full text table, so they stay off. The 2026 Cloud 100 had not been published by this date. Infrastructure share: cloud providers. A different private-valuation stick: global unicorns. Cursor as a product: AI coding assistants. Model scores: LLM rankings. Names: docs/glossaries/cloud-100-2026-glossary.md.

Scale AI is off this edition

The intro says last year’s No. 7, Scale AI, is absent. In June 2025 Meta bought 49% for $14 billion, and founder Alexandr Wang left to lead Meta’s AI work. Under the rules, a majority-style ownership change takes a name off this private list.

Rising Stars 2025

The Rising Stars list is a separate twenty. The piece says selected firms had raised less than $30 million as of 20 August. Names below follow the page order. They are not scored S–D here.