Founder Directory
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Founders13
Known for these resultsRole38%Role is parsed from founder titles in yc.db. Known for 38% 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.Bio92%Bio coverage: 92% 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-company38%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 38% of these rows have at least one match.School31%School is matched from bios, case-sensitive for acronyms. 31% of these rows have at least one match.
- Kumar Abhirup@kumarethFounder/CTO · Dench.comS24B2B · San Francisco
- Rafi SandsFounder/CEO · TandemS24B2B · San Francisco
- Reece Griffiths@ReeceWGriffithsFounder · Deasy LabsS23B2B · New York
- David GraunkeFounder · SafetyKitS23B2B · San Francisco
- Steven GuichardFounder · SafetyKitS23B2B · San Francisco
- Gabriel Birnbaum@gabirnbaumFounder · Y/nS23Consumer · San Francisco
- Ashutosh "Ash" Nayak@AshuNayak159Founder · Gigs LiveW21Consumer · New York
- Vaibhav KharatFounder · Gigs LiveW21Consumer · New York
- Chris Best@cjgbestFounder/CEO · SubstackW18B2B · San Francisco
- Hamish McKenzieFounder/COO · SubstackW18B2B · San Francisco
- Jairaj SethiFounder · SubstackW18B2B · San Francisco
- Jamie Quint@jamiequintFounder · Interstate AnalyticsW16B2B · San Francisco
- Bradford Cross@bradfordcrossFounder/CTO · FlightcasterS09Consumer · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Kumar AbhirupDench.comFounder/CTOSummer 2024B2BSan Francisco, United States6https://x.com/kumarethRafi SandsTandemFounder/CEOSummer 2024B2BSan Francisco, United States22—Reece GriffithsDeasy LabsFounderSummer 2023B2BNew York, United States8https://x.com/ReeceWGriffithsDavid GraunkeSafetyKitFounderSummer 2023B2BSan Francisco, United States10—Steven GuichardSafetyKitFounderSummer 2023B2BSan Francisco, United States10—Gabriel BirnbaumY/nFounderSummer 2023ConsumerSan Francisco, United States5https://x.com/gabirnbaumAshutosh "Ash" NayakGigs LiveFounderWinter 2021ConsumerNew York, United States3https://x.com/AshuNayak159Vaibhav KharatGigs LiveFounderWinter 2021ConsumerNew York, United States3—Chris BestSubstackFounder/CEOWinter 2018B2BSan Francisco, United States90https://x.com/cjgbestHamish McKenzieSubstackFounder/COOWinter 2018B2BSan Francisco, United States90—Jairaj SethiSubstackFounderWinter 2018B2BSan Francisco, United States90—Jamie QuintInterstate AnalyticsFounderWinter 2016B2BSan Francisco, United States2https://x.com/jamiequintBradford CrossFlightcasterFounder/CTOSummer 2009ConsumerSan Francisco, United States2https://x.com/bradfordcross
Showing 1–13 of 13 founders
Leonard Platzer
Founder·Deasy Labs
PRIMARY INFO
RoleFounder· not in title
Team size8
BatchSummer 2023
LocationNew York, United States
Company statusAcquired
StageEarly
BIO
Co-founder of Deasy Labs: The Metadata Engine for search usecases. Prior experience: QuantumBlack: Software Engineer, Machine Learning at AI for Data Quality product; Previous Engineer at Amazon, Mercedes-Benz and ChatBot Startup (E-Bot 7); Bachelor from National University of Singapore and Graduate from UWC Mostar
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
First YC company on record
COMPANY CONTEXT
Deasy LabsMetadata for GenAI workflows
