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Last Accounting Company launch: what they're building and where to launch next

FoxPlug writes launch posts from what a startup ships and matches it to the launch communities that fit it. This page shows what Last Accounting Company is building and where it could launch next; if it is your startup, start free below.

What they're building

Agent-native accounting firm.

Batch
Y Combinator Summer 2026
Industry
B2B
Team size
4
Based
Helsinki, Finland

Founders

lastaccountingcompany.com ↗

See their funding details ↗

Last Accounting Company on the record

What they shipped

  • From its YC profile: Last Accounting Company (LAC) is a full-stack AI accounting firm. We sell the same service (bookkeeping, tax filings, etc.) as a traditional accounting firm, but underneath agents handle everything and a certified accountant signs off. Our service is faster, cheaper, and fully integrated, allowing our clients to focus on what matters, not accounting admin. LAC replaces both outsourced accountants and legacy accounting software for startups and SMBs. Our system is fully proprietary, from the general ledger to the accounting agents. (source)
  • Its own site describes it as: "LAC replaces your accounting firm and software with one fixed-price service for Finnish startups, scaleups and SMBs." (source)

Who is behind it

  • Riki Karjalainen, Founder: Co-Founder at Last Accounting Company. Previously built petabyte-scale data infrastructure at Token Terminal. Applied Mathematics at Aalto University. (source)
  • Sami Laakkonen, Founder: CEO & Co-Founder at Last Accounting Company. Built petabyte-scale data infra for clients incl. Google and Bloomberg. 2x Nordplus International Science Olympiad in Physics. Ex-fighter pilot training. CS dropout. (source)
  • Veikko Pere, Founder: Co-Founder at Last Accounting Company. Previously at BCG and private equity at Intera Partners with IB and law internships. M.Sc. Finance and M.Sc. Laws (ongoing). (source)
  • Pietari Virkkunen, Founder: Co-Founder at Last Accounting Company. Prev. Tech/PE/VC. M.Sc. Industrial Engineering and Management at Aalto University. (source)

Timeline

  1. 2026: founded, per its YC profile. (source)

Other B2B software launches on FoxPlug

  • Papaya: Continuous optimization for AI agents
  • Peer: AI-native freight brokerage
  • Perceptron ML: We make law firms AI-native.

Where else to launch Last Accounting Company

  • Product Hunt ↗
    Self-promotion allowedFree
  • Indie Hackers Forum ↗
    Self-promotion allowed
    Audience: IndieHackers; bootstrapped solo founders sharing revenue and behind-the-scenes
  • Hacker News (Show HN) ↗
    Self-promotion allowed, within the community's rules
    Audience: Hacker News readers; engineers, technical founders, infra-curious people
  • Demand Curve ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • No Code Founders ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • OnlineGeniuses ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • Product Makers ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group
  • ProductLed ↗
    Self-promotion allowed, within the community's rules
    Audience: Slack community; tight-knit, pseudo-private peer group

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