Last Accounting Company
Last Accounting Company is a YC Summer 2026 (S26) company. Based in Helsinki, Finland. Team of 4.
About Last Accounting Company
Summary
Last Accounting Company delivers a full-stack accounting service, covering bookkeeping, VAT filings, payroll, and financial statements, to startups and SMBs. Proprietary AI agents handle the day-to-day work, from reconciling transactions to closing the books, while a certified accountant reviews and signs off each output. This replaces both the traditional outsourced accountant and standalone accounting software in a single service.
Business model
A recurring fee for an all-in-one accounting service, replacing both firm and software costs.
Go-to-market
Startups and SMBs sign up directly through the company's website, entering a self-serve onboarding flow that connects bank feeds and hands off accounting work to the platform.
From the Y Combinator listing
Agent-native accounting firm.
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. This allows us to create powerful self-reinforcing loops and ultimately provide a state-of-the-art accounting service.
Facts
- B2B / B2B -> Finance and Accounting
- Helsinki, Finland
- 4
- Active
- Early
Founders (4)
- Pietari Virkkunen
- Riki Karjalainen
- Veikko Pere
Score every batch against your own thesis
GPAgent's sourcing agent reads every company in a batch, scores each one against your fund's thesis in a private workspace, and lines up the founders worth meeting before Demo Day. You decide who to contact. Your scores, notes, and pipeline never appear on these pages.
How Accelerator intelligence works