4x founder

Johnny Chen

Co-Founder & CEO at Toothy AI (YC W25)

Co-founder

Toothy AI· Winter 2025🇺🇸 San Jose, California, United States

in LinkedIn

2024Co-founder· Toothy AI (YC W25)

Founder · since 2014

Company

Toothy AI (YC W25)

Role

Co-Founder & CEO

current

Stage

—

no public source

Raised

—

no public source

Based

San Francisco Bay Area

current

Founder / co-founder — the company's markEmployee / research role

Source: LinkedIn work history

Profile coverage5 of 7 · missing posts, contact

Toothy AI

AI for insurance verification & billing at dental clinics

Winter 2025

Experience

Career

Toothy AI (YC W25)
Co-founder
Co-Founder & CEO · San Francisco Bay Area · 2024 – Present
2024
Salezilla
Co-founder
Co-Founder & Chief Operating Officer · San Francisco Bay Area · 2018 – 2024
2018
D-Ford Palo Alto
Software Engineer · Palo Alto, California · 2018 – 2019
2018
Collective Technologies Inc.
Co-founder
Co-Founder & Chief Operating Officer · San Francisco Bay Area · 2017 – 2018
2017
Epsilon Financial
Co-founder
Co-Founder & Chief Executive Officer · San Francisco Bay Area · 2014 – 2016
2014

Bio

2nd time founder now automating back office functions for dental clinics. Built one of the first AI B2B cold email solutions (backed by SoftBank) to $1m in ARR using GPT-J. Background in full stack engineering, operations management, and B2B marketing. Previously worked at Ford Motor’s R&D lab as a software engineer.