Breach & Attack Simulation (BAS) · Vendor file
Horizon3
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Verified representative
B4 has approved a representative’s authority to speak for this company. This is not a product endorsement.
company press release confirms all fields; Reuters, TechCrunch, WSJ and Forbes independently corroborate
Active · verified September 2026
Categories Horizon3 serves
The B4 Index places Horizon3 in 2 categories. Each category page lays out the build-versus-buy considerations for that decision.
Funding history
Series E $250M
Series E $250M
$500M in disclosed funding across 2 recorded events.
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.