Founder Directory
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Founders166
Known for these resultsRole43%Role is parsed from founder titles in yc.db. Known for 43% 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.Bio78%Bio coverage: 78% 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-company18%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 18% of these rows have at least one match.School16%School is matched from bios, case-sensitive for acronyms. 16% of these rows have at least one match.
- Charles Muehlberger@charles_v11Founder/CTO · ConiferS26B2B · San Francisco
- Michael Jeffords@michaelbjeffFounder/CEO · ConiferS26B2B · San Francisco
- Eten Zou@etenal7Founder/CEO · Nebula SecurityS26B2B · San Francisco
- Frank Wu@FrankOverF1owFounder · Nebula SecurityS26B2B · San Francisco
- Xiaochuan Yu@Nyaaaaa_ovoFounder/CTO · Nebula SecurityS26B2B · San Francisco
- Yuan TanFounder · Nebula SecurityS26B2B · San Francisco
- Guy Ben Aharon@GuyBenAharonFounder/CTO · OneCLIS26B2B · San Francisco
- Jonathan Fishner@jonathanfishnerFounder/CEO · OneCLIS26B2B · San Francisco
- Varun WadhwaFounder/CTO · TraceforceS26B2B · San Francisco
- Xia HuaFounder/CEO · TraceforceS26B2B · San Francisco
- Dekai Li@li_dekaiiFounder/CTO · TridentS26B2B · San Francisco
- Junaid Mahmood@whosjunaiddFounder/CEO · TridentS26B2B · San Francisco
- Dan DanayFounder/CEO · Verdict MachineS26B2B · Tel Aviv
- Isaac GrossmanFounder · Verdict MachineS26B2B · Tel Aviv
- Liran KoganFounder/CPO · Verdict MachineS26B2B · Tel Aviv
- Pierre Betouin@pbetouinFounder/CEO · TolmoX26B2B · San Francisco
- Vladimir de Turckheim@poledesfetesFounder · TolmoX26B2B · San Francisco
- Abel JohnFounder/CTO · LogosGuardF25B2B · San Francisco
- Sukrut Oak@sukrut_oakFounder/CPO · LogosGuardF25B2B · San Francisco
- Cayden Liao@Cayden_LiaoFounder/CTO · Veria LabsF25B2B · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Charles MuehlbergerConiferFounder/CTOSummer 2026B2BSan Francisco, United States4https://x.com/charles_v11Michael JeffordsConiferFounder/CEOSummer 2026B2BSan Francisco, United States4https://x.com/michaelbjeffEten ZouNebula SecurityFounder/CEOSummer 2026B2BSan Francisco, United States4https://x.com/etenal7Frank WuNebula SecurityFounderSummer 2026B2BSan Francisco, United States4https://x.com/FrankOverF1owXiaochuan YuNebula SecurityFounder/CTOSummer 2026B2BSan Francisco, United States4https://x.com/Nyaaaaa_ovoYuan TanNebula SecurityFounderSummer 2026B2BSan Francisco, United States4—Guy Ben AharonOneCLIFounder/CTOSummer 2026B2BSan Francisco, United States0https://x.com/GuyBenAharonJonathan FishnerOneCLIFounder/CEOSummer 2026B2BSan Francisco, United States0https://x.com/jonathanfishnerVarun WadhwaTraceforceFounder/CTOSummer 2026B2BSan Francisco, United States2—Xia HuaTraceforceFounder/CEOSummer 2026B2BSan Francisco, United States2—Dekai LiTridentFounder/CTOSummer 2026B2BSan Francisco, United States4https://x.com/li_dekaiiJunaid MahmoodTridentFounder/CEOSummer 2026B2BSan Francisco, United States4https://x.com/whosjunaiddDan DanayVerdict Machine2× YCFounder/CEOSummer 2026B2BTel Aviv, Israel4—Isaac GrossmanVerdict MachineFounderSummer 2026B2BTel Aviv, Israel4—Liran KoganVerdict MachineFounder/CPOSummer 2026B2BTel Aviv, Israel4—Pierre BetouinTolmo2× YCFounder/CEOSpring 2026B2BSan Francisco, United States12https://x.com/pbetouinVladimir de TurckheimTolmoFounderSpring 2026B2BSan Francisco, United States12https://x.com/poledesfetesAbel JohnLogosGuardFounder/CTOFall 2025B2BSan Francisco, United States2—Sukrut OakLogosGuardFounder/CPOFall 2025B2BSan Francisco, United States2https://x.com/sukrut_oakCayden LiaoVeria LabsFounder/CTOFall 2025B2BSan Francisco, United States3https://x.com/Cayden_Liao
Showing 1–20 of 166 founders
Pierre Betouin
Founder/CEO·Tolmo
PRIMARY INFO
RoleFounder/CEO
Team size12
BatchSpring 2026
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Pierre was leading security products at Datadog following the acquisition of Sqreen (W18) - a cybersecurity company providing a comprehensive security monitoring for cloud and web apps protecting over 800 customers in production. Pierre previously spent 9 years at Apple, where he led the team in charge of security assessments for the Internet Services department, hacking products and designing protection.
Ex-company, school and discipline below are derived from this bio. Nothing is inferred when the bio is missing.
BACKGROUND
Credentialsnone mentioned
Disciplinenot detectedKeyword match from the bio text, not a classifier.
TRACK RECORD
2× YC founderVerified prior exit
- W18SqreenAcquired
- X26TolmoActive · this entry
COMPANY CONTEXT
TolmoTolmo is the AI security platform that secures every layer of cloud…
Co-foundersVladimir de Turckheim@poledesfetes
