Founder Directory
Built by Keitoto
Founders175
Known for these resultsRole61%Role is parsed from founder titles in yc.db. Known for 61% 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.Bio93%Bio coverage: 93% 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-company26%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 26% of these rows have at least one match.School34%School is matched from bios, case-sensitive for acronyms. 34% of these rows have at least one match.
- Oscar AguilarFounder/CTO · BizmarkS26B2B · San Francisco
- Rodrigo MosqueiraFounder/CEO · BizmarkS26B2B · San Francisco
- Warren Shepard@warrren_shepardFounder/CEO · Control SeatS26Industrials · San Francisco
- Jack Beecher@jackbeecher23Founder/CEO · DentaS26Fintech · San Francisco
- Alessandro FiumeFounder · IMPACT DronesS26Industrials · San Francisco
- Jasper Lortije@JasperLortFounder/CEO · IMPACT DronesS26Industrials · San Francisco
- Pietari VirkkunenFounder · Last Accounting CompanyS26B2B · Helsinki
- Riki KarjalainenFounder · Last Accounting CompanyS26B2B · Helsinki
- Sami Laakkonen@samilaaFounder · Last Accounting CompanyS26B2B · Helsinki
- Veikko PereFounder · Last Accounting CompanyS26B2B · Helsinki
- Andrey GizdovFounder/CEO · OpenVectorS26B2B · San Francisco
- Vishal Urlam@vishalurlamFounder · OpenVectorS26B2B · San Francisco
- Bryce JudyFounder/CEO · Tarifflo Inc.S26B2B · Salt Lake City
- Axel Andersson LingbertFounder/CEO · ZaplarS26B2B · Stockholm
- Douglas Solberg@douglassolberg1Founder · ZaplarS26B2B · Stockholm
- Jon Milles@jnmlsxyzFounder/CTO · ZaplarS26B2B · Stockholm
- Oscar KarlstromerFounder · ZaplarS26B2B · Stockholm
- Deo Arlo (Iron Dome Guy)@deoarloFounder/CEO · Arlo IndustriesX26Industrials · San Francisco
- Chehir DhaouadiFounder/CTO · Callab AIX26B2B · San Francisco
- Haithem Kchaou@haithemkchaouFounder/CEO · Callab AIX26B2B · San Francisco
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Oscar AguilarBizmarkFounder/CTOSummer 2026B2BSan Francisco, United States2—Rodrigo MosqueiraBizmarkFounder/CEOSummer 2026B2BSan Francisco, United States2—Warren ShepardControl SeatFounder/CEOSummer 2026IndustrialsSan Francisco, United States2https://x.com/warrren_shepardJack BeecherDentaFounder/CEOSummer 2026FintechSan Francisco, United States1https://x.com/jackbeecher23Alessandro FiumeIMPACT DronesFounderSummer 2026IndustrialsSan Francisco, United States2—Jasper LortijeIMPACT DronesFounder/CEOSummer 2026IndustrialsSan Francisco, United States2https://x.com/JasperLortPietari VirkkunenLast Accounting CompanyFounderSummer 2026B2BHelsinki, Finland4—Riki KarjalainenLast Accounting CompanyFounderSummer 2026B2BHelsinki, Finland4—Sami LaakkonenLast Accounting CompanyFounderSummer 2026B2BHelsinki, Finland4https://x.com/samilaaVeikko PereLast Accounting CompanyFounderSummer 2026B2BHelsinki, Finland4—Andrey GizdovOpenVectorFounder/CEOSummer 2026B2BSan Francisco, United States4—Vishal UrlamOpenVectorFounderSummer 2026B2BSan Francisco, United States4https://x.com/vishalurlamBryce JudyTarifflo Inc.Founder/CEOSummer 2026B2BSalt Lake City, United States5—Axel Andersson LingbertZaplarFounder/CEOSummer 2026B2BStockholm, Sweden8—Douglas SolbergZaplarFounderSummer 2026B2BStockholm, Sweden8https://x.com/douglassolberg1Jon MillesZaplarFounder/CTOSummer 2026B2BStockholm, Sweden8https://x.com/jnmlsxyzOscar KarlstromerZaplarFounderSummer 2026B2BStockholm, Sweden8—Deo Arlo (Iron Dome Guy)Arlo IndustriesFounder/CEOSpring 2026IndustrialsSan Francisco, United States3https://x.com/deoarloChehir DhaouadiCallab AIFounder/CTOSpring 2026B2BSan Francisco, United States7—Haithem KchaouCallab AIFounder/CEOSpring 2026B2BSan Francisco, United States7https://x.com/haithemkchaou
Showing 1–20 of 175 founders
Haithem Kchaou
Founder/CEO·Callab AI
PRIMARY INFO
RoleFounder/CEO
Team size7
BatchSpring 2026
LocationSan Francisco, United States
Company statusActive
StageEarly
BIO
Second-time founder; scaled a mobile app to 200K+ downloads. Led a sovereign national AI initiative that provided free LLM access to over 300,000 students. Co-published 2 research papers on LLM fine-tuning and data collection. Thomas Jefferson Scholar (top 2% of applicants).
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
Serial founder · self-declared
COMPANY CONTEXT
Callab AI
AI voice agents for on-prem telephony stack.
Co-foundersChehir Dhaouadi
