Definite
Definite is a YC Fall 2026 (F26) company. Based in San Francisco, CA, USA. Team of 3.
About Definite
Summary
Definite builds a shared data layer for finance teams, connecting ERPs, ledgers, payroll, and payment systems into a single, continuously updated model of a company's books. On top of that model, back-office teams build and run automation agents using plain English, without writing code or pulling in engineers to stitch data sources together. The product replaces the manual, per-workflow data plumbing that currently blocks finance teams from automating repetitive back-office work.
Business model
Omit – sources do not specify how the company charges.
Go-to-market
Finance teams at banks and fintechs are the primary buyers, reached through a sales-led motion that includes a scoped implementation to connect each customer's existing systems.
From the Y Combinator listing
Build everyday back-office agents on one live model of your books
Definite is where finance teams build everyday back-office agents on one live model of their books. We plug into your ERP, ledger, payroll, and payments read-only and compile everything into one clean model that stays current as money moves. Your back-office team then builds agents on top in plain English. We never write back and we never move money. The agents are yours, the plumbing is ours. We met in first year computer science at Waterloo and interned at Meta, Optiver, and BitGo. At Optiver they ran an n8n hackathon and the interns automated basically nothing. It couldn't talk to the systems that mattered. When we pitched banks and fintechs on agents, they kept telling us the same thing. The agent isn't the hard part, getting clean data out of their systems is. Right now, automating anything in a back office means engineers hand-stitching data from a dozen sources in different formats on different schedules. Tools like n8n and Workato assume your data is already clean and joined. In finance it never is. So the teams with the most repetitive work and smallest budgets get nothing. The hard part is the compiler. Every source gets cleaned, matched, and joined into one live model of transactions, invoices, vendors, and payments, and it has to stay right as money lands every day. Everyone throws engineers at this. We're doing it once so nobody has to again. Every back office is getting agents eventually. Whoever owns the data they read from owns the thing all of them depend on, and eventually the books themselves. That's what we're building.
Facts
- B2B / B2B -> Finance and Accounting
- San Francisco, CA, USA
- 3
- Active
- Early
Founders (3)
- Farhan Ur Rehman
- Mazin Al-Ani
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