Partner
.406 VenturesCheck size: .406 Ventures does not publish a standard current check-size range on its official site.
Graham Brooks invests or supports investments through .406 Ventures's published strategy: Partner early with consequential companies in healthcare, data and AI, and cybersecurity, combining investing depth with company-building support.
Founders with deep domain expertise and a clear technical or workflow advantage in the firm's three focus sectors.
Opportunities outside healthcare, data and AI, or cybersecurity and companies beyond early stage are less aligned with the stated strategy.
Show domain insight, technical differentiation, customer validation and why the .406 network can help build an enduring category leader.
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Graham Brooks is listed by .406 Ventures as Partner on the firm's current official roster. No employment or biography details are inferred beyond that first-party listing.