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Backed byY Combinator

AI that handles your company’s accounting.

Billow runs your close, reconciliations, and reporting. You review the exceptions.

Book a demo →See how it works ↓

Built by operators with experience at:

  • PwC
  • Bloomberg
  • Thermo Fisher
  • Gilead
  • Merrill Lynch

Meet your new favorite accountant.

The work a junior accountant does, every night, without being asked.

Works with the tools you have

NetSuite, QuickBooks, Ramp, Bill.com, Drive. No migration, no rip and replace.

Close workflow · Draft
Every month-endTrigger
Pull trial balanceNetSuite
Match transactionsAgent
Send for approvalReview
Built from 3 closes you ran by hand

Learns how your team works

It builds workflows from the steps your team already repeats.

March close — cash.xlsx
C7fx=SUM(C2:C5)
A
B
C
1
Account
Book
Bank
2
Operating 4471
0.00
0.00
3
Payroll 8820
0.00
0.00
4
Money market
0.00
0.00
5
FX — EUR
0.00
0.00
6
7
Total cash
0.00
0.00
8
9
10

Finishes the job

It completes the task and hands you the review.

Automate the most tedious parts of accounting.

Pick one to watch it run, start to finish.

Month-end close · March
100%3 business days left
  • Bank reconciliationsQueued
    • Pull statement · ••88411,287 lines
    • Match against the GL1,284 matched
    • Flag what didn't tie3 exceptions
  • FX revaluationQueued
    • Revalue AR and AP, post JE 334979,300.00
  • Accrued payrollQueued
    • Pull register · 3/16–3/31428,466.67
    • Accrue 6 working days128,540.00
    • Check invoices after cut-off2 found
  • Trial balance & financialsQueued
    • Build the close package4 tabs
Closed in 6m 41s · 4 of 4 stepsrun wf-43dff45a · finished 2:41 AM
Book a demo →

Reduce workload from weeks to days.

Every number below comes from a published customer one-pager.

A signed contract and pen on a desk2–3 hrs/wk → 0Series B, clinical-stage · QuickBooksCut procure-to-pay from four files to one triggerRead case studyA printed report showing bar and line charts7 days → 1 dayPublic clinical co. · NetSuite + PlanfulHow a public biotech got its first week back from BvARead case studyA notebook, pen and calculator on a desk5 days → 0.5 dayPublic clinical-stage · NetSuiteHow a public biotech cut its accrual cycle from 5 days to half a dayRead case study

Built for the security reviews your compliance team actually runs.

What we hold, what we don’t do with your data, and what we’ll sign.

SOC 2 Type II
Independently audited controls across every system.
SOC 1
Controls over financial reporting, examined by a licensed CPA.
SOX-aligned
Segregation of duties and approval trails your auditor already expects.
No training on your data
Your ledger never becomes someone else’s model.
HIPAA-configurable
Deployable under a BAA when protected health information is in scope.
Request security documentation →

Give your team the month back.

We’ll map your current finance stack and show you which processes Billow can take over. Free, non-binding, 30 minutes.

Joanathan McIntosh
CEO, Co-Founder