Summer 2026

Billow AI Labs

AI-native Accounting Firm that's killing Deloitte

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What they do

AI accounting and FP&A team that chases data and approvals

How close to us

2, near

does finance back-office work for finance leaders; compliance not margin leaks.

Wedges

  • W7 Find and fix margin leaks adjacent
L1 Company brain (knows the organisation) 1, light
L2 Agent team (runs agents, tools, approvals) 2, clear
L3 Does and learns (finishes, checks, measures, updates the brain) 1, light

Who buys

Firm size
mid-market
Buyer type
business
Role
finance chief or controller
UK
not known
Their own description (from YC)

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.

Full teardown

No full teardown yet. On the deep list.

Technical detail
Slug
billow-ai-labs
Lens hash
179096c479
Pass
screen
Stale
no