Do we have to replace our ERP or billing system?

No. Loopfour automates the work between your existing tools. If everything already lives in your ERP, you may not need a separate billing system at all.

What about rising API or usage costs from Workday or Salesforce?

Where API calls are metered, expensive, or unavailable, Loopfour can connect through secure browser automation instead.

Who maintains the workflows?

Loopfour does. We build, monitor, and maintain the workflows. When repeated exceptions show that a rule needs to change, we flag it and update the workflow with your approval.

How fast can something go live?

A simple workflow can deploy in a couple of days; complex, multi-system workflows typically take a few weeks. We start with one high-exposure workflow and a fast win.

Yes. Every run is logged with an execution tree, approvals, and a record of who did what, so an auditor can see what ran, who approved it, and what was written to your systems. Logs are filterable by workflow, date, amount, and entity.

Can Loopfour support multiple entities or clients?

Yes. Workflows are deployed per environment today, and we set up the structure that fits your organization, entities, clients, and approval model.

Backed by

Combinator (W23)

Your finance workflows.
Automated exactly your way.

Loopfour turns the processes your team runs every month into governed, auditable automation.

Build your first workflow

Deterministic code, not black-box AI
SOC 2 Type II certified; SOC 1 Type II pending
Every run logged, with approvals

Book a workflow review See the controls

The finance AI problem

The real AI risk in finance isn’t slowness. It’s exposure.

Your board wants AI in finance, and your auditors want it to hold up. But finance does not run on “probably.” An LLM that invents a number, silently cuts a corner, or cannot show its work is not an efficiency gain. It is a liability you have to sign your name to at close.

There is a fourth option: automation you can defend, with a full evidence trail under every action.

Rigid finance AI tools

Template-first products may satisfy a checklist, but they force your process into somebody else’s template.

DIY agents and scripts

Something a sharp operator vibe-codes can work, until it drifts, breaks, or leaves with the person who built it. Then nobody can show how a number was produced.

Doing nothing

Your control environment stays exactly as thin as it is today, while your team keeps burning days on report pulls, reconciliations, and copy-paste between systems.

What Loopfour is

Deterministic workflow automation for finance.

Loopfour automates AR, close, and revenue recognition as deterministic, auditable code, not black-box AI, on top of the tools you already use.

Real code, not runtime guesses

Every workflow runs step by step as predefined code. It behaves the same way on run #1 and on run #1,000,000.

Scoped AI where it belongs

AI can read a contract or classify a document, but confidence thresholds and human fallback keep it from deciding what your finance system does.

Full execution evidence

Every action, approval, exception, and system write is logged so finance leaders and auditors can inspect the run instead of trusting a black box.

What you can automate

The finance workflows teams hand us first.

Each one runs as deterministic code on the systems you already use, with approvals where you want them and an audit trail underneath all of it.

Accounts Receivable & Collections

Automated invoicing, dunning, and cash application across the order-to-cash cycle. Every reminder sent and every payment matched is logged against the invoice.

Accounts receivable automation

Accounts Payable & Invoice Processing

Capture the invoice, run the match against the PO and receipt, route approvals to the person who owns the spend, and keep the evidence attached to the payment.

See AP workflows

Revenue Recognition & Contract-to-Cash

ASC 606 schedules derived from the contract, deferred revenue tracked as it releases, and the same journal entries booked the same way every period.

Revenue recognition automation

Payment Reconciliation & Cash Application

Deterministic matching across your bank, ERP, and payment rails. Exceptions route to a person with the context attached instead of landing in a spreadsheet.

Account reconciliation automation

Month-End Close

Reconciliations, journal entries, and close checklists that run on schedule, with the audit evidence captured as the work happens rather than reassembled afterward.

Month-end close automation

Deterministic finance automation

You name the workflow. Loopfour builds it, runs it, and keeps it running.

A screen-share or Loom is enough. Our finance engineers deploy against your existing stack, including tools with no API, then maintain the workflow as your systems change.

Walk us through the month-end pull, credit-memo back-and-forth, AR inbox, or any other process you sign off on at close. You do not build anything.

When a contract is signed, extract billing terms, match the CRM account, generate the invoice, and route anything uncertain to the controller.

Parsed into trigger, extraction, validation, exception, and sync steps

I want to build a workflow for managing invoices and dunning emails obtained from stripe

Processing

01Reasoning
02Browsing templates
03Checking integrations
04Reasoning
05Reading available blocks

Loopfour turns the walkthrough into deterministic workflow code with triggers, extraction, validation, exception routes, and sync steps.

Event trigger configured
Rules and thresholds mapped
Exception route added
Dry run ready for approval

Deterministic pipeline

Trigger

Contract signed

Extract

Terms parsed

Validate

Policy checked

Exception

Route uncertain

Sync

GL updated

Approve a dry run, watch it in observability mode, then let it run on events while exceptions wait for human approval.

Event trigger configured
Rules and thresholds mapped
Exception route added
Dry run ready for approval

Live runs

Event-triggered

Live

Recent runslast 12

Exceptions

Invoice #8842 over thresholdWaiting approval

Audit trail updated

Workflow walkthroughDeterministic codeApproved dry run

Finance workflows

If a person does it the same way every time, Loopfour can run it.

These are starting templates. Every one is customized to how your company actually works.

Signed Contract to Cash, Automatically

Detect a signed contract, extract billing terms, match CRM data, send the invoice, and book revenue with every action logged.

Book a demo

1
Contract signed
trigger
2
Extract terms
billing data parsed
3
Invoice sent
customer notified
4
Revenue booked
ERP updated

Contract-to-cash

Acme Corp - order form signed

Billing workflow generated from approved contract terms

Plan: Enterprise Annual

Billing start: Jun 1, 2026

Amount: $42,000

StatusBooked with audit trail

One finance portal

Stop running finance across five disconnected tools.

Your automations are scattered across AI tools, scripts, and spreadsheets. Loopfour unifies finance workflows into one governed portal with live triggers, controls, and audit-ready exception handling.

Why deterministic matters

An AI agent cannot pass your audit. Loopfour can.

We use AI where it belongs, such as interpreting a document, but never to decide what your finance system does.

AI agents

Loopfour

Decide what to do at runtime and can hallucinate a step or tool.

Runs predefined, programmatic steps with no surprise actions.

Drift or cut corners after enough runs.

Executes identically on the first run and the millionth run.

Hide their reasoning inside the model.

Surfaces every step in an execution tree and audit trail.

Ask you to trust that the right thing happened.

Leaves you with proof that the right thing happened.

See the full comparison

DETERMINISTIC AUTOMATION

A workflow run your auditors can inspect.

Not a chatbot. A controlled workflow engine for finance operations that follows configured rules, catches exceptions, and keeps every action reviewable.

Workflow run

Cash application flow

Ready

Proof & results

Deployed in companies that get audited. Built by finance operators.

Book a workflow review

Audit-ready by default

Public-company controls

A public company on Workday runs Loopfour with SOC 1 evidence captured on every workflow run. Loopfour is SOC 2 Type II certified, and SOC 1 Type II is pending.

Evidence packet

SOC 2

Control evidence

Run log

Step-by-step trace

Approval

Reviewer + timestamp

6 days -> 18 minutes

Billing process compressed

A $75M ad company moved a billing process that touched 25 people over six days into an 18-minute workflow where only exceptions reach a human.

Billing Workflow

Before

6 days

25 touches

After

18 min

exceptions only

intake

validate

post

No API? No problem.

Homegrown billing automated

An approximately $85M legal marketplace automated billing from a homegrown system with no API through secure browser automation.

Browser automation

1Secure login

2Read billing table

3Post approved invoice

Case study

“What used to take a 3-person team full days is now fully automated. Discrepancies get caught before posting, not at month-end.”

— Finance Team

Read the case study

Professional team collaborating in a modern tech office

Entertainment & Media

1,000+

invoices per month processed

900+

workflow runs in a single day

manual data entry required

Integrations & workflow engine

Works with the stack you already have.

Connect Workday, NetSuite, Sage Intacct, QuickBooks, Rillet, Salesforce, HubSpot, Stripe, Slack, Microsoft Teams, Box, Dropbox, DocuSign, Ironclad, Google Sheets, Excel, and the internal systems around them.

Book a demo

Native connectors where APIs are available
Secure browser automation when a missing API would otherwise block the workflow
Deterministic rules for decisions that need control and audit-ready routing

ERP & Accounting

CRM & Sales

Communication

Spreadsheets

Contracts & Docs

Workflow Engine

You stay in control

Your controls stay yours. We carry the maintenance.

Loopfour sits between the systems you already trust and turns repeatable finance work into governed workflows that you and your auditors can inspect.

Permissions, approvals, impact analysis, and a full audit trail: see how governance works.

Explore governance Security and compliance

No rip-and-replace

Keep the ERP, CRM, payment processor, document tools, and approval process your team already uses.

No key-person risk

Workflows live in a managed platform with version history, not in one analyst’s local script or private prompt chain.

No maintenance burden

When an upstream tool changes or repeated exceptions show a rule needs to change, Loopfour handles the update with your approval.

Gated by design

No workflow goes live without the approvals your controls require, and exceptions wait for the right owner before anything posts.

FAQ

Common questions from finance leaders.

No. Loopfour execution is programmatic and deterministic. AI is called only for specific steps that need interpretation, such as reading a contract, with confidence thresholds and human fallback.

Still evaluating a workflow? Contact sales and we will map the first automation path with you.

Bring the finance workflow you have to defend at audit. We will map the automation path.

In 45 minutes, walk through billing, cash application, reconciliation, or whichever process carries the most close and audit risk. You leave with a scoped plan for how Loopfour would run it on your stack with deterministic controls and audit-ready evidence.

Live walkthrough on your actual toolsScoped implementation plan includedNo sales pressure, no vendor pitch

Talk to Founder

Fast workflow scoping

Bring the workflow with the most exposure.

Built by finance engineers

Custom implementation and maintenance on your stack.

Audit-ready execution

Deterministic runs, exception gates, and retained evidence.

Your finance workflows. Automated exactly your way.

The real AI risk in finance isn’t slowness. It’s exposure.

Rigid finance AI tools

DIY agents and scripts

Doing nothing

Deterministic workflow automation for finance.

Real code, not runtime guesses

Scoped AI where it belongs

Full execution evidence

The finance workflows teams hand us first.

Accounts Receivable & Collections

Accounts Payable & Invoice Processing

Revenue Recognition & Contract-to-Cash

Payment Reconciliation & Cash Application

Month-End Close

You name the workflow. Loopfour builds it, runs it, and keeps it running.

Name the workflow

Code-built workflow

Run with controls

If a person does it the same way every time, Loopfour can run it.

Signed Contract to Cash, Automatically

Acme Corp - order form signed

Stop running finance across five disconnected tools.

An AI agent cannot pass your audit. Loopfour can.

A workflow run your auditors can inspect.

Deployed in companies that get audited. Built by finance operators.

Public-company controls

Billing process compressed

Homegrown billing automated

Works with the stack you already have.

Your controls stay yours. We carry the maintenance.

No rip-and-replace

No key-person risk

No maintenance burden

Gated by design

Common questions from finance leaders.

Bring the finance workflow you have to defend at audit. We will map the automation path.

Fast workflow scoping

Built by finance engineers

Audit-ready execution

You name the workflow. Loopfour builds it, runs it, and keeps it running.

Name the workflow

Code-built workflow

Run with controls

If a person does it the same way every time, Loopfour can run it.

Signed Contract to Cash, Automatically

Acme Corp - order form signed

Stop running finance across five disconnected tools.

A workflow run your auditors can inspect.

Common questions from finance leaders.

Your finance workflows.
Automated exactly your way.