Quillon

Startup

Quillon

AI workspace for technical accounting: researching standards, benchmarking SEC filings, reading contracts and drafting audit-ready memos where every claim traces back to the source paragraph.

Founded2023, Sofia; operations in San Francisco. Formerly Acclara AI.
FoundersNikolay Dakov, Ivaylo Stefanov, Atanas Dobrev
StagePre-seed
Total funding$1.5m
Last roundPre-seed, $1.5m, April 2026, led by 42CAP with angels from NVIDIA and Roblox
What it doesAccounting standards research, filing search and benchmarking, contract analysis, checklists and memo drafting for controllers, technical accountants and auditors
TractionUsed by more than 500 accountants at US healthcare companies, listed companies, audit firms and consultancies
PricingNot published
MarketsUS customers, built in Bulgaria
PeersDataSnipper, Fieldguide, Trullion, Caseware

Why it matters

Quillon has $1.5 million and 500 users at listed US companies, a small company working on a hard problem: technical accounting memos that survive an auditor or the SEC. It is the only company in this set focused on the judgement end of accounting rather than the transaction end.

Updated September 2026.

Part of Accountio’s accounting technology coverage.