Instinct raises $1B at $10B valuation just one month after $2.5B round

ivan_bezdomny · x · 2026-09-28

Instinct closed a $1 billion Series C led by Benchmark, Sequoia and Coatue at a $10 billion valuation — a 4x jump from its $250 million round at $2.5 billion just one month earlier. The startup has also detailed new offerings, including a concierge service for AI agents.

Commentary: a year ago Instinct might have already sold to Facebook, but today they are competitors of a sort in earning users' trust with email.

Related event: AI Agent Startup Instinct Raises $1B at $10B Valuation(3 posts)→

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