Founder Directory
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Founders318
Known for these resultsRole32%Role is parsed from founder titles in yc.db. Known for 32% 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-company28%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 28% of these rows have at least one match.School21%School is matched from bios, case-sensitive for acronyms. 21% of these rows have at least one match.
- Safi Shamsi@safishamsiiFounder/CEO · Graphify LabsS26B2B · London
- Guy Ben Aharon@GuyBenAharonFounder/CTO · OneCLIS26B2B · San Francisco
- Jonathan Fishner@jonathanfishnerFounder/CEO · OneCLIS26B2B · San Francisco
- Hannah Chung@hannah_chuuFounder/CEO · OneTriangleS26B2B · San Francisco
- Medha Venkatapathy@medha_rvFounder/CTO · OneTriangleS26B2B · San Francisco
- Carl Stauffer@carlstauffer_Founder/CEO · RiftenS26B2B · San Francisco
- Jay Chooi@chooi_jeqFounder/CEO · RobocurveS26Industrials · San Francisco
- Aamir PoonawallaFounder/CTO · Understudy LabsS26B2B · San Francisco
- Luis Manrique@lluismanriqueFounder/CEO · Understudy LabsS26B2B · San Francisco
- Nour Zahzah@nourzahzahFounder/CEO · VendoS26B2B · San Francisco
- Yousef Helal@yousefhllFounder/CTO · VendoS26B2B · San Francisco
- Arseniy Shishaev@arseniyswishFounder/CTO · SuperlogX26B2B · San Francisco
- Nicolò Magnante@nicolomagnanteFounder/CEO · SuperlogX26B2B · San Francisco
- Rob Pruzan@RobKnight__Founder/CEO · ZenbuX26B2B · San Francisco
- John Horton@johnjhortonFounder/CTO · Expected ParrotF25B2B · Boston
- Robin Horton@ExpectedParrotFounder/CEO · Expected ParrotF25B2B · Boston
- Dwarak Govind Parthiban@quettabitxyzFounder · s2.devF25B2B · San Francisco
- Shikhar Bhushan@shikhrrFounder/CEO · s2.devF25B2B · San Francisco
- Stephen Balogh@sgbalogh0Founder/CTO · s2.devF25B2B · San Francisco
- Brendan Kellam@bshizzle28Founder/CTO · SourcebotF25B2B · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Safi ShamsiGraphify LabsFounder/CEOSummer 2026B2BLondon, United Kingdom2https://x.com/safishamsiiGuy Ben AharonOneCLIFounder/CTOSummer 2026B2BSan Francisco, United States0https://x.com/GuyBenAharonJonathan FishnerOneCLIFounder/CEOSummer 2026B2BSan Francisco, United States0https://x.com/jonathanfishnerHannah ChungOneTriangleFounder/CEOSummer 2026B2BSan Francisco, United States4https://x.com/hannah_chuuMedha VenkatapathyOneTriangleFounder/CTOSummer 2026B2BSan Francisco, United States4https://x.com/medha_rvCarl StaufferRiftenFounder/CEOSummer 2026B2BSan Francisco, United States0https://x.com/carlstauffer_Jay ChooiRobocurveFounder/CEOSummer 2026IndustrialsSan Francisco, United States2https://x.com/chooi_jeqAamir PoonawallaUnderstudy Labs2× YCFounder/CTOSummer 2026B2BSan Francisco, United States2—Luis ManriqueUnderstudy LabsFounder/CEOSummer 2026B2BSan Francisco, United States2https://x.com/lluismanriqueNour ZahzahVendoFounder/CEOSummer 2026B2BSan Francisco, United States2https://x.com/nourzahzahYousef HelalVendoFounder/CTOSummer 2026B2BSan Francisco, United States2https://x.com/yousefhllArseniy ShishaevSuperlogFounder/CTOSpring 2026B2BSan Francisco, United States2https://x.com/arseniyswishNicolò MagnanteSuperlogFounder/CEOSpring 2026B2BSan Francisco, United States2https://x.com/nicolomagnanteRob PruzanZenbuFounder/CEOSpring 2026B2BSan Francisco, United States1https://x.com/RobKnight__John HortonExpected ParrotFounder/CTOFall 2025B2BBoston, United States5https://x.com/johnjhortonRobin HortonExpected ParrotFounder/CEOFall 2025B2BBoston, United States5https://x.com/ExpectedParrotDwarak Govind Parthibans2.devFounderFall 2025B2BSan Francisco, United States5https://x.com/quettabitxyzShikhar Bhushans2.devFounder/CEOFall 2025B2BSan Francisco, United States5https://x.com/shikhrrStephen Baloghs2.devFounder/CTOFall 2025B2BSan Francisco, United States5https://x.com/sgbalogh0Brendan KellamSourcebotFounder/CTOFall 2025B2BSan Francisco, United States3https://x.com/bshizzle28
Showing 1–20 of 318 founders
Safi Shamsi
Founder/CEO·Graphify Labs
PRIMARY INFO
RoleFounder/CEO
Team size2
BatchSummer 2026
LocationLondon, United Kingdom
Company statusActive
StageEarly
BIO
Founder at Graphify Labs (YC S26). Built Graphify, an open-source knowledge graph engine that reached 100K+ GitHub stars and 4M+ PyPI downloads in about four months. Published researcher and author of The Memory Layer. MS Data Science, University of Birmingham; thesis on knowledge-graph-powered RAG systems achieving a 50% improvement in retrieval and 67% reduction in hallucinations.
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
DisciplineResearcherKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
Graphify LabsOn-device knowledge graph engine for enterprises
