Dex

The AI Coworker in Chrome

Y CombinatorWinter 2025ActiveB2BProductivityArtificial IntelligenceProductivityConsumer ProductsAI

What they do

Problem

Knowledge work in the browser is fragmented across tabs and tools, making it slow and tedious to coordinate context, decisions, and repetitive steps.

Solution

Dex is an AI copilot embedded in Chrome that understands user intent via voice/text/actions to augment web workflows, automate tasks, and provide a multimodal workspace with memory.

Who it's for

Knowledge workers who do most of their work in the browser, including teams at startups and enterprises.

Founders

Regina Lin

Founder

Regina is the co-founder & CEO of Dex. She studied Mathematics with a concurrent master's in Computational Science at Harvard (dropped out). She previously co-founded Contour AI, a devOps tool for LLM evaluation, helped build the MVP an ecommerce marketplace with 40K+ customers and worked in various tech investment roles.