LLM Observability & Agent Tracing Platform · Vendor file
Patronus AI
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B4 has approved a representative’s authority to speak for this company. This is not a product endorsement.
Company+amount+round confirmed on company announcement + TechCrunch original reporting.
Active · verified September 2026
Categories Patronus AI serves
The B4 Index places Patronus AI in 3 categories. Each category page lays out the build-versus-buy considerations for that decision.
AI Governance & Testing Platform for Customer Service Agents Usage + seats; typically $25-75k/year at mid-enterprise
Funding history
Series B $50M
$50M in disclosed funding across 1 recorded event.
The B4 Index scores every software category on two axes, strategic differentiation and AI feasibility, to
classify it Build, Buy, Bridge, or Beware. Vendor facts here are independent of that call. See the full
methodology.