For groups and the CFOs who run them
Every company in the group. One set of live numbers.
Each company keeps its own books in its own country, currency and tax rules. Finn adds them up into one group P&L and balance sheet, takes out what moves between your companies, and answers for the whole group. Finn does the work. You set the rules and sign off.
14 days free, no card. 31 countries live. No group fee.
Northwind Holdings Ltd
Northwind GmbH
Northwind FZ-LLC
The finance team, rewritten
Your next C-suite hire is an agent.Finance sets the rules and signs off.
Group finance used to mean layers of people pulling numbers together and reconciling them every month. That work is moving to software that does it, not software that helps you do it. What is left for finance is the part that always mattered: setting the rules, clearing the exceptions and making the call.
The case for the shift: a16z, You need a new CFO.
The data comes to Finn
Bank lines, statements, receipts and invoices arrive by feed, email, upload or chat, for every company. Finn reads them, posts them and matches them. Nobody spends the first week of the month stitching inputs together.
The books stay current
Finn categorises and reconciles as bank lines land, flags what needs a person, and prepares each company's month-end close. The group report reads the live ledgers, not a spreadsheet cut on day ten.
Controls are built in
Every change Finn proposes arrives as a card a person approves. Every change is logged, with who or what made it. Nothing files without a person signing off.
Group accounts
One group report.No consolidation spreadsheet.
Pick the companies, mark the parent, set the reporting currency. Finn lines up the rest, and you check what Finn is unsure of.
Any companies, any parent
Add the companies you run, in any of our 31 countries. Mark which one owns the others, set ownership for each subsidiary, part-owned ones included, and pick the currency the group reports in. Each company keeps its own books, VAT and filings.
Finn does the mapping
Different countries, different charts of accounts. Finn maps every account to a group line with a confidence score, and works out which contacts are really your other companies. You confirm, and your choices stick.
Intercompany taken out
Recharges, loans and the parent's investment come out of the group numbers. Anything that does not match on both sides is flagged with the likely reason. Part-owned subsidiaries show the outside shareholders' share.
Currencies handled properly
P&L at each month's average rate, balance sheet at the closing rate, all in the group's reporting currency. Loans between your companies in another currency are revalued every month, and Finn can tell you what a currency move has cost.
Whole group mode
Ask across every company at once.On Finn's deepest reasoning.
Switch Finn to Whole group and ask the questions that cut across countries and currencies. Finn names the company behind every figure. Group questions run on our most capable model, with longer thinking for multi-country work.
- “What's group cash today, and which company is it sitting in?”
- “How much has the parent put into the German company this year?”
- “What has the euro move cost us since January?”
- “Which company is carrying the most unpaid invoices?”
Controls are the product
Finn proposes.A person approves.
Speed is only worth having if you can trust it. Finn works on the real ledger of each company, and every change leaves a trail an auditor can follow.
- By default every write arrives as a card: amount, account, source document. Approve or edit.
- Every line Finn categorises carries its source, confidence and reasoning.
- An audit log of every change, including which Finn action made it and from which channel.
- A person sees the group only if they can see every company in it.
- Books held in the EU, on our own servers in Helsinki. Never used to train AI models.
- Nothing files unsupervised.
A screenshot of Finn in AccountsOS. The user asks Finn to pay Sarah’s £340 expense claim. Finn finds expense claim EC-1184, then shows an approval card listing the amount, the category, the account it will be paid from and the VAT treatment, with Approve and Edit buttons. Finn cites the expense claim and the attached receipt as its source.
For your finance engineer
Build your own agents on the same books.
The sharpest finance teams now build their own workflows and agents. AccountsOS gives them reconciled books to build on: an MCP server with 94 tools for Claude, Claude Code and ChatGPT. Connect once and your agents read every company you can see, the same numbers Finn works from.
Developer docsSetting up a group
Four steps. Most of the work is Finn's.
Sign up as a group of companies and you start with the parent. Home then walks you through the rest.
Step 1
Add each company
Start with the parent, then add the others. Each one gets its own country, books, tax rules and deadlines.
Step 2
Bring the history
Opening balances, last filed accounts and books exported from the software you use today. Finn maps the old chart of accounts.
Step 3
Make the group
Mark the parent, set the reporting currency, and confirm Finn's account mapping and intercompany links.
Step 4
Invite the team
Bring in your finance team and directors at group level. Finn starts the work. You review and sign off.
Questions
What finance leads ask first
Do we have to replace our ERP?
Is this statutory consolidation?
Can Finn change things across the whole group?
What about companies we only part-own?
What does it cost?
Where is our data, and who can see it?
Can Finn run under our own brand?
We operate somewhere you do not cover yet.
How do we get started?
In production today
Bring the group. Keep the control.
Every company on its own books. One group view, live. Finn does the work, and a person signs off.
Or email finn@accounts-os.com