Industries · VC & family offices

AI bookkeeping for VC funds and family offices.

When you run on many entities, the books lag weeks, because payables wait on a tax advisor or a freelancer. Cortena keeps accounts payable real-time for every entity: routed, coded and ready to pay in the right one.

Multi-entity by design · DATEV, Exact Online and Twinfield per entity

The multi-entity problem

Ten entities, one part-time bookkeeper, books that lag weeks.

A group like yours runs on many entities, each with its own ledger and its own rules. Accounts payable automation was never built for that shape. So the work lands on people.

01

Entity sprawl

Every deal adds an entity. Every entity adds a ledger, a chart of accounts and a stream of invoices that has to land in exactly the right place.

02

External dependency

Payables sit with a tax advisor or a freelancer who books in batches. Your books are only as current as their last visit.

03

Weeks of lag

Management fees, legal bills and deal costs pile up unbooked. By the time the batch is processed, the position you report is weeks old.

How Cortena runs it

One inbox in. The right entity out.

Cortena is accounts payable automation built for multi-entity structures. Invoices arrive in one place and land in the right ledger, coded by that entity's own rules and ready to pay.

Group inboxinvoices@alpine-group.eu4 entities · live
Loyens & Loeff N.V.RE-2026-0412€12.400,00AC Fund II GmbH & Co. KGCoded
Notariat Dr. Weber2026/118€1.845,50AC Invest 14 GmbHCoded
Hetzner Online GmbHR0011283544€249,90Alpine Group GmbHCoded
CBRE GmbHINV-88231€6.200,00AC Invest 9 GmbHConfirm entity
One address for the whole group. Every invoice routed to its entity, coded, and queued for payment there. The ambiguous one waits for a person.
01

One inbox for the whole structure

Forward every supplier invoice to a single address, or let each entity keep its own. Root-mailbox routing sorts the rest, so nobody plays traffic controller.

02

Routed to the right entity

Cortena reads the bill-to name, address and VAT ID and assigns the invoice to the right entity. Ambiguous invoices are flagged for a person, not guessed.

03

Booked by that entity's own rules

Each entity keeps its own chart of accounts, cost centres, VAT logic and approval flow. Each one books by its own rules. Rules never leak between entities.

04

Payments prepared in the right entity

Payment proposals are created in the entity that owes the money, against that entity's bank account, and wait for sign-off. No more paying one entity's invoice from another.

AC Fund II GmbH & Co. KGDATEV · SKR04
GL account6825 · Rechts- u. Beratungskosten
VATBU 9 · 19 % VSt
Cost centreKST 200 · Fund ops
The German fund: SKR04, German VAT keys, its own cost centres.
AC Participations B.V.Twinfield · own chart
GL account4560 · Advieskosten
VATVH 21 %
Cost centreKP 40 · Deal 2026-03
The Dutch entity: its own chart, Dutch VAT, coded for Twinfield.
The numbers

Real-time books, without the headcount.

~90% coded automatically

of invoice volume is coded with no human touch, per entity, by that entity's own rules. Your people review exceptions, not the pile.

~30s per invoice

from arrival to booking-ready, entity routing and line coding included. Payables stay current as invoices land, not at month-end.

15days to live

typical onboarding for the full structure, entities and rules included. White-glove, and free.

Figures reflect typical results across Cortena customers. Your onboarding sizing confirms the numbers on your own structure and volume.

What fund and family office teams ask

Straight answers on entities, rules and control.

  1. It reads the bill-to name, address and VAT ID on the document and matches them against your entities. When an invoice is ambiguous, it is flagged for a person to confirm, not guessed. Confirmed routings become precedents, so accuracy improves with your structure.

  2. Yes. Every entity keeps its own chart of accounts, cost centres, VAT logic and coding guidelines. SKR04 comes preloaded for German entities, and rules never leak from one entity into another.

  3. Yes, per entity. A German entity can post to DATEV while a Dutch entity posts to Exact Online or Twinfield. Each entity exports booking-ready batches to its own system, with the source document attached to every entry.

  4. Your rules decide. Approval workflows are set per entity and can be inherited from the group, so a managing director signs for one entity while deal leads sign for theirs. Nothing posts without sign-off, and every approval is logged.

  5. Booking-ready entries, per entity, in their own system. Instead of a folder of PDFs, they get coded batches with the document attached to every entry, exported to DATEV, Exact Online or Twinfield. They review and finalize instead of keying.

  6. In Germany, on Hetzner infrastructure, encrypted with AES-256. Cortena is GDPR-compliant with a DPA in place, works GoBD-aligned, and never trains AI models on your data.

  7. Still have a question?

Every entity, current.

Book a demo and bring invoices from across your structure. We will show you routing, per-entity coding and payment preparation on your own documents.

Book a demo