About Kontier
Billing infrastructure for Europe's regulatory reality.
Kontier brings EU tax, SEPA and e-invoicing into one platform, built for the rules of 27 member states. It is a product of Frontier Algorithmics UG, a German company you can look up in the commercial register.
- Company
- Frontier Algorithmics UG
- Managing director
- Zaid Marzguioui
- Built in
- Regensburg, Germany
- Register
- HRB 20570, Regensburg
What we build
One platform instead of three systems.
Subscriptions, payments, EU tax and accounting: what most teams assemble from three separate systems, Kontier delivers as one. Built natively for the EU market, not retrofitted from US products.
- OSS · RC · VIES
EU tax
OSS, reverse charge and VIES checks as core logic, not a plug-in.
- SEPA
SEPA direct debit
Part of the billing run, not a separate tool.
- XRECHNUNG · ZUGFERD
E-invoicing
XRechnung and ZUGFeRD/Factur-X, native to the platform.
- DATEV
DATEV export
Accounting as an export, not an afterthought.
Accountability
Who is accountable for Kontier.
Frontier Algorithmics UG (haftungsbeschränkt) develops and operates Kontier and is the contracting party in our terms and the controller under the GDPR. It is represented by its managing director, Zaid Marzguioui. Every detail below is in the legal notice.
- Company
- Frontier Algorithmics UG (haftungsbeschränkt)
- Address
- Koppoldstr. 1, 86551 Aichach
- Register
- HRB 20570
- Court
- Amtsgericht Regensburg
- VAT ID
- DE367287424
- Represented by
- Zaid Marzguioui
Principles
What we let you check us against.
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Substance over staging
Everything that runs today carries a status; everything that does not is on the roadmap, marked non-binding.
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Honestly dated
Shipped changes are listed by month. The status page says when each service was last confirmed instead of drawing uptime it never measured.
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EU-first
Platform data is processed in the EU. The one processor that can transfer data to the US is named, with its legal basis.
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Finance-grade correctness
Versioned plans and prices, FX and tax rules frozen at invoice time, idempotent money-moving calls. Existing books are never touched.
Let's talk.
A short demo, technical questions or a conversation about billing in the EU market: write to us, or book a demo slot.