Founder Directory
Built by Keitoto
Founders11
Known for these resultsRole55%Role is parsed from founder titles in yc.db. Known for 55% of these rows — the rest have no title at all, mostly 2019–2023. Those rows stay in the result and are counted as Unknown, never as No.Bio91%Bio coverage: 91% of these founders have a bio on their YC profile. Every bio-derived facet (ex-company, school, credentials, discipline) is Unknown for the rest.Ex-company9%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 9% of these rows have at least one match.School64%School is matched from bios, case-sensitive for acronyms. 64% of these rows have at least one match.
- Dr. Sabrine ObbadFounder · AlaraS25B2B
- Elyas Obbad@ObbadElyasFounder · AlaraS25B2B
- Johnny ChenFounder/CEO · Toothy AIW25Healthcare · San Francisco
- Matt KerriganFounder/CTO · Toothy AIW25Healthcare · San Francisco
- Tejas KonduruFounder/CRO · Toothy AIW25Healthcare · San Francisco
- Dominik Moehrle@dominik_moehrleFounder · DodoS24Healthcare · San Francisco
- Julius Hillebrand@julezhillebrandFounder · DodoS24Healthcare · San Francisco
- Tim ReinhartFounder · DodoS24Healthcare · San Francisco
- Abdul Jamjoom@abduljamjoomFounder/CEO · AriniW24Healthcare · San Francisco
- Rami Rustom@rami_rustomFounder/CTO · AriniW24Healthcare · San Francisco
- Karen TaylorFounder/CEO · onederfulW18Healthcare · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Dr. Sabrine ObbadAlaraFounderSummer 2025B2BUnknown0—Elyas ObbadAlaraFounderSummer 2025B2BUnknown0https://x.com/ObbadElyasJohnny ChenToothy AIFounder/CEOWinter 2025HealthcareSan Francisco, United States15—Matt KerriganToothy AIFounder/CTOWinter 2025HealthcareSan Francisco, United States15—Tejas KonduruToothy AIFounder/CROWinter 2025HealthcareSan Francisco, United States15—Dominik MoehrleDodoFounderSummer 2024HealthcareSan Francisco, United States6https://x.com/dominik_moehrleJulius HillebrandDodoFounderSummer 2024HealthcareSan Francisco, United States6https://x.com/julezhillebrandTim ReinhartDodoFounderSummer 2024HealthcareSan Francisco, United States6—Abdul JamjoomAriniFounder/CEOWinter 2024HealthcareSan Francisco, United States17https://x.com/abduljamjoomRami RustomAriniFounder/CTOWinter 2024HealthcareSan Francisco, United States17https://x.com/rami_rustomKaren TayloronederfulFounder/CEOWinter 2018HealthcareSan Francisco, United States2—
Showing 1–11 of 11 founders
Johnny Chen
Founder/CEO·Toothy AI
PRIMARY INFO
RoleFounder/CEO
Team size15
BatchWinter 2025
LocationSan Francisco, United States
Company statusActive
StageEarly
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.
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
No notable employer or school mentioned in the bio.
Credentialsnone mentioned
DisciplineEngineerKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
Toothy AI
AI for insurance verification & billing at dental clinics
IndustryHealthcare
Websitetoothy.ai/
Team size15
X—
LocationSan Francisco, United States
BatchWinter 2025
