Brian Halligan

HubSpot
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Co-founder & Board Member, HubSpot

I co-founded and helped scale it from startup to a $30B company by championing inbound and building systems that compound.

Today I split time between teaching at , advising founders, and thinking about where the flywheel goes next in an AI-first world. Along the way I’ve stayed inbound-first: earn attention by teaching, remove friction, and delight customers so growth accelerates.

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How do I know when we truly have product‑market fit?