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Semiotic

Studio-Grade Design at Scale

Y CombinatorFall 2025ActiveB2BEngineering, Product and Design

What they do

Problem

Fast-growing startups struggle to create high-quality landing pages quickly without settling for generic AI builders or expensive, slow agencies.

Solution

Semiotic builds AI design agents that generate studio-grade landing pages at scale for startups.

Who it's for

Fast-growing startups and teams that need professional landing pages without agency cost or timelines.

Founders

Michael Roberson
Founder

CEO @ Semiotic. Dropped out of Columbia (Computer Science + Cognitive Science). Previously founded a $30k/mo design studio. Former UX intern @ Amazon & brand design intern @ Landor. IG:@michaelhroberson

Bryan Grisales
Founder

CTO @ Semiotic. CS + Math at Columbia and AI research at Columbia's Computational Design Lab.

Brandon Yao
Founder

COO @ Semiotic. Studied Computer Science and Economics at Columbia before dropping out. Previously did research with the Chief Economist of OpenAI and worked at a handful of YC-backed startups.

Company timeline

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