Founder Directory
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Founders6
Known for these resultsRole33%Role is parsed from founder titles in yc.db. Known for 33% 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.Bio100%Bio coverage: 100% 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-company33%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 33% of these rows have at least one match.School67%School is matched from bios, case-sensitive for acronyms. 67% of these rows have at least one match.
- Sadia Saifuddin@sadiasaifuddin1Founder/CPO · Risely AIS25Education · San Francisco
- Sahil Hasan@itsahil85Founder · Dots 💸S21Fintech · San Francisco
- Billy ThalheimerFounder · REGENTW21Industrials · North Kingstown
- Michael KlinkerFounder · REGENTW21Industrials · North Kingstown
- Tom Harari@tomharariFounder/CEO · CleanlyW15Consumer · New York
- Caroline Cochran@caorilneFounder · OkloS14Industrials · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Sadia SaifuddinRisely AIFounder/CPOSummer 2025EducationSan Francisco, United States8https://x.com/sadiasaifuddin1Sahil HasanDots 💸FounderSummer 2021FintechSan Francisco, United States10https://x.com/itsahil85Billy ThalheimerREGENTFounderWinter 2021IndustrialsNorth Kingstown, United States40—Michael KlinkerREGENTFounderWinter 2021IndustrialsNorth Kingstown, United States40—Tom HarariCleanlyFounder/CEOWinter 2015ConsumerNew York, United States40https://x.com/tomharariCaroline CochranOkloFounderSummer 2014IndustrialsSan Francisco, United States50https://x.com/caorilneShowing 1–6 of 6 founders
Lawrence Gentilello
Founder/Board Director·Screenleap
PRIMARY INFO
RoleFounder/Board Director
Team size4
BatchWinter 2012
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Lawrence is CEO and Founder at Optery. Prior to founding Optery, Lawrence led Accenture’s Data Management Platforms practice in North America and was a Product Management and Technical Consulting leader at Oracle and BlueKai. As an entrepreneur, Lawrence also co-founded the remote collaboration company Screenleap and launched the first online facebook at Stanford in 1999. Lawrence is an alumnus of Stanford (BA), Duke (MBA), and Y Combinator (Optery (W22) and Screenleap (W12)).
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
CredentialsMBA
DisciplineBusinessKeyword match from the bio text, not a classifier.
TRACK RECORD
2× YC founder
- W12ScreenleapActive · this entry
- W22OpteryActive
COMPANY CONTEXT
One-click screen sharing with installation-free viewing on all devices
Co-foundersTuyen Truong