Funding rounds
Announced	Stage	Amount	Valuation	Lead investors	Other investors	Confidence
Sep 2, 2026	Series B	$100M	$383M	Delta-v Capital	Booz Allen Ventures, M12 (Microsoft's Venture Fund), Morgan Stanley, Ten Eleven Ventures	Reported
Sep 19, 2023	Series A	$50.0M	$223M	M12 (Microsoft's Venture Fund), Moore Strategic Ventures	Booz Allen Ventures, Ten Eleven Ventures	Reported
Jul 19, 2022	Seed	$6.0M	$20.2M	Ten Eleven Ventures	—	Reported

Totals add known amounts using recorded USD conversions where available; other currencies are shown separately. A ~ marks an estimated amount.

Sources6

1
CompanyHiddenLayer | Total AI Security
HiddenLayer · Supports Organization · description, Organization · name, Organization · website
“Secure your AI with HiddenLayer’s end-to-end platform that detects threats, protects models, and ensures safe, compliant AI adoption at scale.”
2
DatabaseSixth-Domain public startup directory
Sixth-Domain · Supports Organization · country, Organization · kind
“{"country": "USA", "hq_iso2": "US", "id": "13b50c9f-0b38-48f5-9f57-fbb586ede317"}”

3
NewsHiddenLayer nabs $100M as enterprises rush to secure their AI deployments
TechCrunch · Sep 2, 2026 · Supports Funding round · amount
“has now raised $100 million in a Series B funding round that was led by Delta-v Capital”
4
NewsHiddenLayer raises $50M for its AI-defending cybersecurity tools
TechCrunch · Sep 19, 2023 · Supports Funding round · amount
“raised $50 million in a funding round co-led by M12 and Moore Strategic Ventures”
5
NewsHiddenLayer Raises $6M in Seed Funding
FinSMEs · Jul 19, 2022 · Supports Funding round · amount
“raised $6M in Seed funding”
6
DatabaseHiddenLayer - Forge company profile
Forge Global · Supports Funding round · post money valuation usd
“07/19/2022 Series Seed $6.07M $1.09 $20.23M”

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