
Nightfall AI
Data ProtectionSan Francisco, United Statesfounded 2018private
Nightfall AI is a cybersecurity company specializing in Data Protection, founded in 2018 and headquartered in San Francisco, United States. It has raised $60.3M in total funding, employs about 107 people, and is privately held.
updated Aug 22, 2026
The record
What Nightfall AI did, dated.
- Jun 2026Feature launchNightfall integrates with Claude Compliance API
- Jun 2026Product launchNightfall launches AI Agent Security for real-time control over autonomous AI workflows
- Feb 2026Feature launchNightfall MCP: AI-Powered Security Investigations
- Feb 2026Customer winUserTesting Deploys Nightfall AI for Real-Time Security Controls
Momentum
59 out of 100.
Momentum blends hiring, funding, traffic and sentiment into one score, recomputed daily. The score is free; the pillars behind it unlock in the platform.
Growthlocked
Marketlocked
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In the platform
The other 440 data points.
- Funding historyevery round, every lead investor
- Headcount growthvelocity, departments, seniority
- Open jobs20 live postings, role mix
- Tech stackframeworks, clouds, security



