Founder Directory
Built by Keitoto
Founders84
Known for these resultsRole57%Role is parsed from founder titles in yc.db. Known for 57% 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-company57%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 57% of these rows have at least one match.School42%School is matched from bios, case-sensitive for acronyms. 42% of these rows have at least one match.
- Joanathan McIntosh@joanathanlmcFounder/CEO · Billow AI LabsS26B2B · San Francisco
- Philip MoniagaFounder/CTO · Billow AI LabsS26B2B · San Francisco
- Alex Southmayd@alexsouthmaydFounder/CEO · BloomyS26Education · San Francisco
- Alessandro FiumeFounder · IMPACT DronesS26Industrials · San Francisco
- Sami Laakkonen@samilaaFounder · Last Accounting CompanyS26B2B · Helsinki
- Arjun Chaliha@arjunjchalihaFounder/CTO · MarbleS26B2B · New York
- Batu Balci@batubbalciFounder/CEO · TovenAIS26Fintech · New York
- Sam TurchettaFounder/CTO · TovenAIS26Fintech · New York
- Ray Fitzgerald@rincidiumFounder/CEO · BloomX26B2B · San Francisco
- Clint Burgess@ClintVanBurgessFounder/CMO · CharacterQuiltX26B2B · San Francisco
- Antoine BertrandFounder/CTO · ForesightX26B2B · New York
- Bao NguyenFounder/CEO · HessianX26B2B · San Francisco
- James SmithFounder/COO · HessianX26B2B · San Francisco
- Mann PatiraFounder/CTO · HexaX26B2B · San Francisco
- Avi Arora@c0delemonsFounder · OddpoolX26B2B · San Francisco
- Ritesh Malpani@RiteshMalpaniFounder/CEO · OddpoolX26B2B · San Francisco
- Yaman ZiadehFounder/CTO · PanaceaX26Healthcare · San Francisco
- Arash BaratiFounder/CEO · PLAN0 AIX26Real Estate and Construction
- Dimitris PagonakisFounder · PLAN0 AIX26Real Estate and Construction
- Shervin BaratiFounder/CTO · PLAN0 AIX26Real Estate and Construction
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Joanathan McIntoshBillow AI LabsFounder/CEOSummer 2026B2BSan Francisco, United States0https://x.com/joanathanlmcPhilip MoniagaBillow AI LabsFounder/CTOSummer 2026B2BSan Francisco, United States0—Alex SouthmaydBloomyFounder/CEOSummer 2026EducationSan Francisco, United States1https://x.com/alexsouthmaydAlessandro FiumeIMPACT DronesFounderSummer 2026IndustrialsSan Francisco, United States2—Sami LaakkonenLast Accounting CompanyFounderSummer 2026B2BHelsinki, Finland4https://x.com/samilaaArjun ChalihaMarbleFounder/CTOSummer 2026B2BNew York, United States2https://x.com/arjunjchalihaBatu BalciTovenAIFounder/CEOSummer 2026FintechNew York, United States2https://x.com/batubbalciSam TurchettaTovenAIFounder/CTOSummer 2026FintechNew York, United States2—Ray FitzgeraldBloomFounder/CEOSpring 2026B2BSan Francisco, United States3https://x.com/rincidiumClint BurgessCharacterQuiltFounder/CMOSpring 2026B2BSan Francisco, United States4https://x.com/ClintVanBurgessAntoine BertrandForesightFounder/CTOSpring 2026B2BNew York, United States2—Bao NguyenHessianFounder/CEOSpring 2026B2BSan Francisco, United States3—James SmithHessianFounder/COOSpring 2026B2BSan Francisco, United States3—Mann PatiraHexaFounder/CTOSpring 2026B2BSan Francisco, United States3—Avi AroraOddpoolFounderSpring 2026B2BSan Francisco, United States2https://x.com/c0delemonsRitesh MalpaniOddpoolFounder/CEOSpring 2026B2BSan Francisco, United States2https://x.com/RiteshMalpaniYaman ZiadehPanaceaFounder/CTOSpring 2026HealthcareSan Francisco, United States2—Arash BaratiPLAN0 AIFounder/CEOSpring 2026Real Estate and ConstructionUnknown4—Dimitris PagonakisPLAN0 AIFounderSpring 2026Real Estate and ConstructionUnknown4—Shervin BaratiPLAN0 AIFounder/CTOSpring 2026Real Estate and ConstructionUnknown4—
Showing 1–20 of 84 founders
Riki Karjalainen
Founder·Last Accounting Company
PRIMARY INFO
RoleFounder· not in title
Team size4
BatchSummer 2026
LocationHelsinki, Finland
Company statusActive
StageEarly
BIO
Co-Founder at Last Accounting Company. Previously built petabyte-scale data infrastructure at Token Terminal. Applied Mathematics at Aalto University.
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
Disciplinenot detectedKeyword match from the bio text, not a classifier.
TRACK RECORD
First YC company on record
COMPANY CONTEXT
Last Accounting CompanyAgent-native accounting firm.
