YCS26· AIBillow AI Labs
AI-native Accounting Firm that's killing Deloitte
Founders
- Joanathan McIntoshFounder/CEO
- Philip MoniagaFounder/CTO
Same space
Competitors
Closest in what they build, same category.
FinntW22AI Agents for CFO and Finance teamsShared: finance, workflow automationInactive
Last Accounting CompanyS26AI-native accounting firm.Shared: financeActive
ModernbancW20Accounting software that works for youShared: financeActive
RationalS26First Zero-human Accounting FirmShared: financeActive
LiveFlowW21The Unified AI-ERP & FP&A PlatformShared: financeActive
Adjacent
Overlapping tags, a different niche.
TamLabsW25Agent teams for complex workShared: finance, workflow automationActive
finbarW25The AI investment analystShared: finance, workflow automationActive
MulliganW23AI automation for insurance brokeragesShared: finance, workflow automationAcquired
ZommaS26The AI BPO for financial servies, run by computer-use agentsShared: finance, workflow automationActive
ProcIndexS25AI-powered accounting automation for construction and manufacturingShared: financeActive
Also from S26 in AI
Batchmates in Summer 2026.
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ChromieS26We help startups win gov contractsActive
ComputableS26Derivatives Exchange for ComputeActive
Control SeatS26AI that runs factories.Active
DefiniteS26Build everyday back-office agents on one live model of your booksActive
FlowManualS26AI for Construction's Back OfficeActive
About Billow AI Labs
Billow handles the work of Accounting and FP&A FTEs keeping teams compliant and audit-ready. We work within existing stacks (NetSuite, Coupa, and 80+ other systems) and complex spreadsheets, chasing down information and coordinating approvals across stakeholders. Built by repeat founders; Joan built and exited an accounting/ERP platform (45,000 businesses in 4 years) and Phil built Bloomberg's financial “brain” data infrastructure, and as CTO of a trading platform ($1B in volume). Advisors include CFOs, controllers, auditors from publicly-traded biopharma, and a Big-4 Accounting firm.
San Francisco, CA, USA
Billow AI Labs: questions
Which YC batch was Billow AI Labs in?
Billow AI Labs was in Y Combinator's Summer 2026 batch (S26).
Is Billow AI Labs still active?
Y Combinator lists Billow AI Labs as active.
Who founded Billow AI Labs?
Billow AI Labs's founders, as listed on its YC page: Joanathan McIntosh (Founder/CEO), Philip Moniaga (Founder/CTO).
Where is Billow AI Labs based?
Billow AI Labs lists San Francisco, CA, USA as its location on YC's directory.
Not affiliated with Y Combinator. From YC's public directory. Logos via logo.dev; trademarks belong to their owners.