Founder Directory
Built by Keitoto
Founders41
Known for these resultsRole68%Role is parsed from founder titles in yc.db. Known for 68% 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.Bio90%Bio coverage: 90% 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-company34%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 34% of these rows have at least one match.School32%School is matched from bios, case-sensitive for acronyms. 32% of these rows have at least one match.
- Mathieu PerezFounder/CEO · COACHS26B2B · San Francisco
- Nicolas Sebag@sebcnyFounder/CTO · COACHS26B2B · San Francisco
- Thomas PerezFounder/COO · COACHS26B2B · San Francisco
- Christ XuFounder/CTO · RationalS26B2B · San Francisco
- Jibril Moinuddin@JibrilAsifFounder/CEO · RationalS26B2B · San Francisco
- Aahil Valliani@aahil__valFounder · VestrisS26Real Estate and Construction · San Francisco
- Joshua Tang@joshtang07Founder · VestrisS26Real Estate and Construction · San Francisco
- Armen ArakelyanFounder/CTO · OrnadyneX26Industrials · Los Angeles
- Geourg Kivijian@geourgkivijianFounder/CEO · OrnadyneX26Industrials · Los Angeles
- David Newell@DavidNewell95Founder · End CloseW26B2B
- Sean Bolton@SeanBoltonFounder/CEO · End CloseW26B2B
- Lars Gjardar MusæusFounder/CTO · CrunchedF25B2B · Oslo
- Ray Wang@RuiCromwellFounder/CEO · FlickF25Consumer · San Francisco
- Zoey Zhang@ZoeyZ1004Founder · FlickF25Consumer · San Francisco
- Brandon Abreu Smith@brandonstarxelFounder/CTO · Structured AIF25Real Estate and Construction · New York
- Issy Greenslade@Green181024Founder/COO · Structured AIF25Real Estate and Construction · New York
- Raymond Zhao@stingrayzz22Founder/CEO · Structured AIF25Real Estate and Construction · New York
- Aaron Yu@AaronYu397421Founder/CTO · QualGentX25B2B · San Francisco
- Shivam Agrawal@ShivamHacksFounder/CEO · QualGentX25B2B · San Francisco
- Erin KimFounder/CEO · MeshW25B2B · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Mathieu PerezCOACHFounder/CEOSummer 2026B2BSan Francisco, United States4—Nicolas SebagCOACHFounder/CTOSummer 2026B2BSan Francisco, United States4https://x.com/sebcnyThomas PerezCOACHFounder/COOSummer 2026B2BSan Francisco, United States4—Christ XuRationalFounder/CTOSummer 2026B2BSan Francisco, United States2—Jibril MoinuddinRationalFounder/CEOSummer 2026B2BSan Francisco, United States2https://x.com/JibrilAsifAahil VallianiVestrisFounderSummer 2026Real Estate and ConstructionSan Francisco, United States2https://x.com/aahil__valJoshua TangVestrisFounderSummer 2026Real Estate and ConstructionSan Francisco, United States2https://x.com/joshtang07Armen ArakelyanOrnadyneFounder/CTOSpring 2026IndustrialsLos Angeles, United States4—Geourg KivijianOrnadyneFounder/CEOSpring 2026IndustrialsLos Angeles, United States4https://x.com/geourgkivijianDavid NewellEnd Close2× YCFounderWinter 2026B2BUnknown2https://x.com/DavidNewell95Sean BoltonEnd CloseFounder/CEOWinter 2026B2BUnknown2https://x.com/SeanBoltonLars Gjardar MusæusCrunchedFounder/CTOFall 2025B2BOslo, Norway5—Ray WangFlickFounder/CEOFall 2025ConsumerSan Francisco, United States2https://x.com/RuiCromwellZoey ZhangFlickFounderFall 2025ConsumerSan Francisco, United States2https://x.com/ZoeyZ1004Brandon Abreu SmithStructured AIFounder/CTOFall 2025Real Estate and ConstructionNew York, United States10https://x.com/brandonstarxelIssy GreensladeStructured AIFounder/COOFall 2025Real Estate and ConstructionNew York, United States10https://x.com/Green181024Raymond ZhaoStructured AIFounder/CEOFall 2025Real Estate and ConstructionNew York, United States10https://x.com/stingrayzz22Aaron YuQualGentFounder/CTOSpring 2025B2BSan Francisco, United States10https://x.com/AaronYu397421Shivam AgrawalQualGentFounder/CEOSpring 2025B2BSan Francisco, United States10https://x.com/ShivamHacksErin KimMeshFounder/CEOWinter 2025B2BSan Francisco, United States3—
Showing 1–20 of 41 founders
David Newell
Founder·End Close
PRIMARY INFO
RoleFounder· not in title
Team size2
BatchWinter 2026
Location
Company statusActive
StageEarly
BIO
David is the co-founder and CTO of End Close. Before End Close, David was the team lead at PostHog (W20) for the error tracking product which became the fastest growing in the companies history. David previously founded Unflow (S19) and has worked as a product engineer at Intercom and Basecamp.
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
Credentialsnone mentioned
DisciplineEngineerKeyword match from the bio text, not a classifier.
TRACK RECORD
2× YC founderSerial founder · self-declared
- S19UnflowInactive
- W26End CloseActive · this entry
COMPANY CONTEXT
End CloseAI powered reconciliation for high-volume payments companies
Co-foundersSean Bolton@SeanBolton
Also founded · 1 more YC company
UnflowInactiveSummer 2019The next generation CMS built for mobile apps
B2BNew York, United States5Open this entry
