Definite (YC S26) — 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.
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What it does Build everyday back-office agents on one live model of your books (source)
Example from a real report (our sample on Target): “In March 2026, Target announced a planned incremental $1 billion operating investment” Source: Target Corporation (press release)
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.
What the site is built with
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Read from the page's own HTML and response headers on 10 September 2026, at https://www.usedefinite.com/. Each badge matched a string the site serves about itself — hover one to see which. Nothing here is a traffic, ranking or revenue figure: those cannot be read off a page and are not claimed.
Checked away from the directory entry. Neither line below comes from the company's Y Combinator page.
Definite connects your financial stack, continuously finds opportunities to improve cash, margin, and runway, and gives finance the evidence and workflow to capture the value.
The title and description the site itself served, answering 200. Not a cached copy and not the company's directory entry — what was live when we asked.
Counted only where a thread links to this company's own site, announces it by name on that forum, or names it beside its own Y Combinator batch. A thread whose title merely carries the words is not counted — a name is not an identifier. More may exist than the one page of results read here. Hacker News is not us, and nothing above is our opinion of the company.
Gurshabd Singh Varaich
Founder/CEO
Founder & CEO at Definite (YC S26). Previous SWE intern at BitGo (pre-execution wallet policy and approval controls). Studied CS at UWaterloo
Mazin Al-Ani
Founder
Founder at Definite (YC S26). Previously SWE intern at Optiver (quantitative trading systems) and Boosted.ai (agentic AI platform for financial analysts). Studied CS at University of Waterloo.
Farhan Ur Rehman
Founder
Founder at Definite (YC S26). Previous SWE at Meta (Instagram reels recommendation). Studied Statistics at University of Waterloo.
Founders, titles and bios as the company published them. Photographs are our own copies of the ones on that record, so they do not break when the original link expires.
One of 142 companies held here in B2B › Finance and Accounting.
No investor is drawn from a Form D — the form states how many invested and never who. The one investor on this graph is named because a batch has exactly one.
Want the whole picture on Definite?
Example from a real report (our sample on Target): “In March 2026, Target announced a planned incremental $1 billion operating investment” Source: Target Corporation (press release)
A Full Report on Definite: verified, sourced, every claim cited, ready in a few minutes. See pricing.
What the Full Report on Definite covers
The Short Answer
Which Company This Is
What They Do, And How The Money Works
Who Runs It, And How To Reach Them
The Money: Funding, Valuation, Runway
Who Pays Them, And Who They Are Up Against
Warning Bells
Sources
12 cited sources found
Plus the sections for what you are deciding, which you pick after ordering.
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Definite (YC S26) — Build everyday back-office agents on one live model of your books. MentionFox, 2026-10-10. https://mentionfox.com/funding/yc-definite
