Cranium

Cranium delivers an AI governance and security platform for visibility, monitoring, and red teaming across enterprise AI and GenAI systems, plus Arena, a red-teaming environment that simulates both automated and human-led attacks against AI models across the full model and supply-chain lifecycle before real attackers get the chance.

Cranium was spun out of KPMG in 2023 and is based in Short Hills, New Jersey. It has raised roughly $40–52 million total, including a $25 million Series A in October 2023, backed by Titanium Ventures, KPMG, and SYN Ventures, and in 2026 formed a global alliance with ISTARI to extend enterprise AI security and governance reach. In a published financial-services case study, a global firm used Cranium to identify 54 AI models, 229 AI technologies, and 57 vulnerabilities across its vendor network — visibility it reportedly didn’t have before — and used Arena and Cranium’s AI Card to strengthen vendor accountability and compliance tracking.

The differentiator is provenance and positioning: a Big 4-incubated platform combining audit and governance rigor with technical red-teaming, aimed at organizations that need both security testing and compliance documentation for their AI estate. AI governance and red-teaming is an increasingly crowded space by 2026, so Cranium’s KPMG heritage helps with enterprise trust and distribution more than it redefines the underlying technical category.