Cranium
Short Hills, US · Founded 2022 · Delaware corporation · 77 employees on LinkedIn · 5 known investors
Cranium provides AI security and governance software that discovers, monitors, and defends AI models, agents, and copilots across enterprise infrastructure. The platform helps security teams defend production AI systems against emerging threats like prompt injection, model drift, and jailbreaks through continuous assessment and automated remediation.
Founders & leadership
Cranium was founded in 2022 by Jonathan Dambrot and Felix Knoll.



Board


Investors · 5
Reported raises · per SEC filings
Form D private placements$51.3M disclosed across 4 rounds · 2023–2026
▶$20MraisedJul 2026 · 17 investors · Other TechnologyRule 506(b)
- Jonathan DambrotExecutive Officer, Director
- Felix KnollExecutive Officer, Director
- Jay LeekDirector
- Gerhard EschelbeckDirector
- Marcus BartramDirector
- Vivek RadiaExecutive Officer
- Offering amount
- $39M
- Amount sold
- $20M
- First sale
- Jul 2026
- Incorporated
- Corporation, Delaware, 2022
- Federal exemptions
- 06b
▶$19.6MraisedOct 2023 · 30 investors · Other TechnologyRule 506(b)
- Jay LeekDirector
- Jonathan DambrotExecutive Officer, Director
- Felix KnollExecutive Officer, Director
- Gerhard EschelbeckDirector
- Marcus BartramDirector
- Offering amount
- $19.6M
- Amount sold
- $19.6M
- First sale
- Oct 2023
- Incorporated
- Corporation, Delaware, 2022
- Federal exemptions
- 06b
▶$4.7MraisedJul 2023 · 28 investors · Other TechnologyRule 506(b)
- Gerhard EschelbeckDirector
- Jay LeekDirector
- Felix KnollDirector
- Jonathan DambrotExecutive Officer, Director
- Offering amount
- $6M
- Amount sold
- $4.7M
- First sale
- May 2023
- Incorporated
- Corporation, Delaware, 2022
- Federal exemptions
- 06b
▶$7MraisedMar 2023 · 3 investors · Other TechnologyRule 506(b)
- Felix KnollExecutive Officer, Director
- Jay LeekDirector
- Jonathan DambrotExecutive Officer, Director
- Offering amount
- $7M
- Amount sold
- $7M
- First sale
- Mar 2023
- Incorporated
- Corporation, Delaware, 2022
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Competitors · 5
by search overlapCompanies competing with Cranium for the same Google search keywords, organic and paid, via search-intersection analysis.
In the news
Frequently asked questions
- What does Cranium do?
- Cranium provides AI security and governance software that discovers, monitors, and defends AI models, agents, and copilots across enterprise infrastructure. The platform helps security teams defend production AI systems against emerging threats like prompt injection, model drift, and jailbreaks through continuous assessment and automated remediation.
- Who founded Cranium?
- Cranium was founded by Jonathan Dambrot, Felix Knoll in 2022.
- Who are Cranium's investors?
- Cranium's investors include Syn Ventures Seed Management Llc, Titanium Ventures, Capra Ventures H1, SYN Ventures, Telstra Ventures.
- How much funding has Cranium raised?
- Cranium has disclosed $51.3M raised across 4 rounds.
- Where is Cranium headquartered?
- Cranium is headquartered in Short Hills, US.


