An invoice only gets paid if the customer data is right.
Base Sociétés keeps your customers’ legal identity reliable — SIREN, SIRET, VAT number, e-invoicing address — by checking it every day against the official public registers.
- Installed on your servers
- No correction without your approval
- No data subscription
Your customer base moves without you.
A clean-up gives you a file that is right on the day it is delivered. Then your customers change: they are acquired, merge, close, move, switch platform. Nothing moves on your side, and yet the record becomes wrong.
Acquisition
The business passes to another company: the right identifier is no longer the same.
Merger
Two entities become one; the absorbed company disappears from the register.
Closure
Company struck off, establishment closed: the SIREN you invoice no longer exists.
Relocation
The head office or a site moves: the SIRET no longer points to the right place.
New routing
The customer switches platform or adds a suffix: the invoice must go somewhere else.
At the end of the chain is your cash collection.
- Outdated recordYour customer base
- IssuedThe invoice
- RejectionYour accredited platformRecipient not found: the invoice is not sent.
- Never receivedYour customer
- DelayedYour payment
A customer in receivership or liquidation is an unpaid invoice in the making.
Court orders opening insolvency proceedings are published in the BODACC, France’s official gazette of legal notices. Base Sociétés matches them against your base and flags them: you know before issuing the next invoice or delivering, and in time to file your claim.
No data is changed: the commercial decision stays yours.
A permanent cycle, not a one-off operation.
Base Sociétés keeps it running for you, every day.
- 1A customer changesThe official register publishes the event.
- 2Base Sociétés detects itAnd proposes the correction, with its source.
- 3You decideApprove or reject; the decision is logged.
- 4The record is rightYour business system is up to date, the invoice goes through.
And the next day, the check starts again: that is what keeps your base right over time.
In force since 1 September 2026
Every business must be able to receive an electronic invoice, and large and mid-sized companies issue theirs through an accredited platform: a wrong or missing e-invoicing address means an invoice rejected today.
1 September 2027
Fewer than 250 employees and up to €50 million in turnover: they must issue their invoices through an accredited platform.
A wrong identifier no longer triggers a complaint. It triggers a rejection.
Before sending anything, your accredited platform must find the recipient in the directory. If it cannot, the invoice is not sent. Your customer disputes nothing: they never saw it. And what never arrives is never paid.
The same customer opened twice means receivables and reminders split in two.
An account created again at data entry, a branch opened as a new customer: duplicates scatter receivables, muddle reminders and skew every correction. Base Sociétés finds them across the whole base by legal identifier, and separates what must be merged from what must not be.
- DuplicateSame SIRET on several accountsThe same establishment exists twice: merge it, unless the SIRET was copied by mistake.
- ProbableSame SIREN, no SIRETThe establishments cannot be told apart: the SIRET must be completed first.
- LegitimateSame SIREN, different SIRETsHead office and branches of a key account: must not be merged.
- Current value
- Closed establishment
- Proposed value
- Active establishment, same town
The establishment on the record is closed in the register. The same company has an active establishment in the same town, with the same activity code. Source: SIRENE, today’s extract.
The tool proposes. A person decides. The trail remains.
Each proposal states what it wants to change, where the information comes from and why it is plausible. You approve or reject; the decision is logged, a rejection is not proposed again, and the correction goes back into your business system.
Request an assessmentYour foreign customers’ identity, found in their own country’s register.
Without a SIREN, a foreign record is usually completed by hand, one website at a time. Base Sociétés queries the connected official registers directly, picks the right country’s register and returns the identity to copy into your business system.
Identity found by the application
9 countries connected- FranceGovernment business directory + Sirene registerIdentity, SIRET, address; VAT derived from the SIREN
- BelgiumBCE / KBOIdentity, address, VAT number
- CzechiaARESIdentity, address, VAT in most cases
- FinlandPRH / YTJIdentity, address, derived VAT
- PolandVAT white list + KRSVAT status and address, from the NIP
- PortugalNIPC + VIESNumber checked and confirmed with VIES, no address
- United KingdomCompanies HouseIdentity, registered office address
- SwitzerlandZefix, commercial registerIdentity, address
- NorwayBrønnøysund (BRREG)Identity, address, status
Standardised address
4 countries connectedThe identity is entered by hand; the application finds the official postcode and checks the address.
- NetherlandsPDOK / BAG (Kadaster)Official postcode from street and city
- LuxembourgGeoportail.luPostcode from street and city
- SpainCartoCiudad (IGN)Postcode, cleaned-up street
- United StatesCensus GeocoderZIP code from street and city
Connectable on request
Depending on your customers’ countries, on quotation: paid register, dedicated development.
- AustriaFirmenbuchPaid registerThe VAT number is not public there
- ItalyRegistro ImpresePaid register
- SpainRegistro MercantilPaid register
- NetherlandsKVKPaid per volumeThe VAT number is not published there
- LithuaniaRegistrų centrasPaid register
Where a country does not publish the VAT number, the European VIES system validates the number you enter: no directory can make it up.
A check that never stops, against authoritative sources.
Base Sociétés continuously compares your customer master data with official public registers. Every discrepancy it finds becomes a reasoned proposal, submitted to a human. Nothing is corrected behind your back.
Six public, official sources
All free of charge, all queried directly by the application. No data licence, no intermediary, no subscription renewal to negotiate every year.
SIRENE register
The civil registry of French companies: legal name, SIREN, establishments and their SIRET, activity, addresses, opening and closing dates. The full register is embedded on your server for bulk processing.
EU VAT numbers
The European Commission service that validates a VAT number with the Member State that issued it. Essential for your customers established in the EU.
Legal announcements
Safeguard proceedings, court-supervised reorganisation, liquidation, striking-off. A customer in insolvency proceedings is seen before the unpaid invoice, not after.
Addressing directory
Checks whether a customer is already reachable on the European invoice exchange network, and under which identifier.
National Address Database
Normalises and verifies postal addresses — the precondition for reliably matching a customer record with an actual establishment.
Succession links
The official record of establishment takeovers. When a customer closes down, it makes it possible to trace the successor — even after several successive transfers.
The principle, in pictures.
Have the gap measured in your own customer data
Write to Hexashift
Three people in the company have a different problem. It is the same master data.
You carry the collection risk
An invoice rejected by your platform is not a late invoice: it is an invoice that never reached your customer. The payment clock starts again from zero, and nobody on the other side chases you.
“How many of our customers have an identifier that will not go through?”
You absorb the correction work
Addressing requests arrive by email, out of order, and every correction is made record by record. Without a work queue or a rationale, each decision rests on someone's memory.
“Who changed this SIRET, when, and on what basis?”
You have to host it and answer for it
One more tool means hosting to vet, flows to authorise, access to segregate. Here: installed in your own environment, no inbound flows, no customer data going out.
“Where does the data go, exactly?”
A snapshot or continuous control: it all depends on your business model.
An SME invoicing a few hundred loyal customers, all in France, can make do with an occasional online audit. An online shop opening new business accounts every day, a company selling abroad or invoicing thousands of customers cannot: its base changes faster than anyone can check it. That is what Base Sociétés is for.
SME, a few hundred loyal customers, established in France.
- You upload an Excel extract of your base, 500 customers at most.
- The report says, record by record, whether it passes the four gates of e-invoicing.
- Summary free of charge; detailed report priced by number of lines, free up to 10.
- Customers established in France; the file is deleted after the analysis.
- The report finds and says what to do: the correction is up to you.
Thousands of customers, new accounts every day, customers abroad.
- Installed on your servers: your base never leaves your information system.
- Every acquisition, merger or closure published in the register comes up as a proposal.
- Insolvency proceedings published in the BODACC are flagged to you, to anticipate non-payment.
- You approve; the correction goes back into your business system, the decision is logged.
- Duplicates found by legal identifier, case by case, exportable to Excel.
- Identity found in 9 countries, address standardised in 4 more, others connectable on request.
- Perpetual licence, optional maintenance, no data charges.
Three steps, and you remain self-sufficient at the end.
The goal is not to make you dependent on a service provider: it is to leave you with a tool that your teams run on their own, on your servers.
The assessment
We start from an export of your management system and measure, with no commitment, the actual gap between your customer master data and the official registers.
- Customers whose identifier cannot be found or is out of date
- Customers that have closed down, are in proceedings or have been taken over
- Fields required by the reform and currently missing
Deployment
The application is installed on your servers, connected to your export, and configured with your roles and permissions.
- Guided installation, on your infrastructure
- Loading of your existing master data
- Training for the teams that make the decisions
Operation
Your teams process proposals as they come. The check reruns by itself; the master data does not go wrong again.
- Work queues by type of decision
- Periodic refresh of the sources
- Complete decision log
A perpetual licence, not a data subscription
You buy the software once and it stays installed in your own environment. A corrective and adaptive maintenance contract is offered as an option — recommended to keep up with changes in the public registers and in the regulations. The data itself is never billed: the six sources of the continuous check are public and free of charge. The model in detail →
What Base Sociétés is not.
The scope is narrow, and deliberately so. Knowing what the tool does not do saves you from expecting what it will not deliver — and tells you exactly where it fits in your setup.
It is not an accredited platform
Base Sociétés does not issue, transmit or receive any invoice. That role belongs to the platform you will have chosen.
It is not a financial data provider
No credit score, no financial statements, no recommended credit limit. That information comes from the major B2B data providers, on subscription.
It is not a replacement for your management system
Your PMS, ERP or CRM remains the source of customer identity. The tool does not drive it and rewrites nothing in its place.
The objections, answered frankly.
Does Base Sociétés send my invoices?
No, and it is not meant to. Issuing and transmitting invoices is the job of an accredited platform, which you choose independently. Base Sociétés prepares and verifies the identification data that this platform will require in order not to reject your invoices.
Do we have to replace our ERP or management system?
No. Your management system remains the source of customer identity. Base Sociétés works from an export and returns a list of corrections to apply at the source. This is a design choice: rewriting data anywhere other than at its source creates a silent discrepancy that comes back with every synchronisation.
Does our customer data go to you, or to a cloud?
No. The software is installed on your servers, together with its database. What leaves your network are queries about a public company identifier — never your customer file, never an export. No data is hosted by the vendor or pooled with another customer.
The flows are described in detail on the security and deployment page.
What if we switch to another accredited platform later?
Nothing changes. The master data is independent of the platform: it verifies legal identifiers, which are the same whichever operator you choose. You are not adding one more dependency.
Who uses the tool day to day?
The team that knows the customers — sales administration, customer service, accounts receivable. The decisions are business decisions, not technical operations. IT is involved at installation and for running the server, not in the daily work.
How many customers do we need for it to be worthwhile?
The question is not volume but repetition: as soon as correcting your customer master data by hand becomes recurring work, the tool earns its place. With a few dozen accounts, a spreadsheet is enough. With several thousand, the drift is continuous and invisible — that is where permanent verification changes everything.
The initial assessment is the best way to decide: it measures the gap before any commitment.
Our customers are mostly private individuals. Does this concern us?
Partly. Transactions with private individuals fall under e-reporting, which does not require identifying a company. Base Sociétés handles the business part of your portfolio — the part that carries the risk of rejection.
We have already had our database cleaned by a service provider.
That is a good starting point, and it does not settle what comes next. A clean-up gives you a file that is correct on the day it is delivered; closures, transfers and relocations resume the following day. The difference lies less in the initial quality than in what maintains it afterwards — and in the fact that the cost does not come round again every year.
An invoice only gets paid if the data is right.
Describe your context in a few lines: the management system you use, the rough size of your customer base, the deadline that applies to you. We reply within 24 working hours.
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Prefer to write directly? contact@hexashift.fr