Founder Directory
Built by Keitoto
Founders7
Known for these resultsRole14%Role is parsed from founder titles in yc.db. Known for 14% 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-company29%Ex-company is matched from bios with employment context (ex-, formerly, worked at). 29% of these rows have at least one match.School14%School is matched from bios, case-sensitive for acronyms. 14% of these rows have at least one match.
- 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
- David Newell@DavidNewell95Founder · End CloseW26B2B
- Sean Bolton@SeanBoltonFounder/CEO · End CloseW26B2B
- David AbusaidFounder · WeltioS22Fintech · Mexico City
FOUNDERROLEBATCHINDUSTRYLOCATIONTEAMX_url
Pietari 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—David NewellEnd Close2× YCFounderWinter 2026B2BUnknown2https://x.com/DavidNewell95Sean BoltonEnd CloseFounder/CEOWinter 2026B2BUnknown2https://x.com/SeanBoltonDavid AbusaidWeltioFounderSummer 2022FintechMexico City, Mexico15—
Showing 1–7 of 7 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.
