Startups · Private company profile
Upwind
Upwind provides a runtime-based cloud and AI security platform for cloud workloads, APIs, and AI agents.
Private · Cloud security · San Francisco
Funding history
| Date | Round | Amount | Lead / notable investors |
|---|---|---|---|
| October 28, 2026 | Series C | $400M | ['Bessemer Venture Partners (lead)', 'Canapi Ventures', 'Cyberstarts', 'Greylock Partners', 'Craft Ventures', 'Leaders Fund', 'Salesforce Ventures', 'TCV', 'Alta Park Capital', 'Penny Jar Capital', 'Cerca Partners', 'Swish Ventures', 'Picture Capital'] |
| January 2026 | Series B | $250M | ['Bessemer Venture Partners (lead)'] |
Amounts as reported in the linked articles (company-reported or press-reported, not audited).
Blitz findings
- Runtime security platform that judges cloud security on what is actually running in live environments, rather than periodic scans and static snapshots. — Source
- Combines runtime intelligence from cloud workloads, APIs, and AI agents with context on which exposures are actually reachable. — Source
- Supports AWS, Microsoft Azure, Google Cloud Platform, and Oracle Cloud Infrastructure, with an AWS Security Hub integration and billing through the customer's AWS account. — Source
- Offers three AI agents: Blue Agent investigates across log sources to build a single attack story, Red Agent verifies whether exposures are actually exploitable, and Green Agent finds fixes that remediate large numbers of findings. — Source
- Company says hundreds of organizations use the platform, naming Siemens, Roku, Carvana, Nubank, Supabase, and ClickUp; it launched an AI Lab for Cybersecurity in September 2026. — Source
Latest research
Upwind's $400M Series C — Runtime Security for the Agentic Era · October 30, 2026
Sources
- Upwind's $400M Series C — Runtime Security for the Agentic Era (BlitzLab research)
- Upwind Series C announcement via FinanceWire, October 28, 2026 (republished by Investegate) - https://www.investegate.co.uk/announcement/fnw/financewire-news--fnews/upwind-closes-400-million-series-c-at-3-8-b-/9846686
- Securities.io, October 28, 2026 - https://www.securities.io/upwind-security-raises-400-million-series-c-led-by-bessemer/
- SiliconReport, October 28, 2026 - https://www.siliconreport.com/upwind-security-raises-400m-at-3-8b-valuation
Research only — not investment advice. Private-company figures are company-reported or press-reported, not audited. BlitzLab scores blitzscaling strategy from public data.