
International Billing Software for Growing Service Businesses
Different markets. Familiar billing challenges.
Recurring charges, changing services, wholesale records and usage make billing demanding wherever you operate. ZOEY gives you a complete platform with built-in admin and customer portals, or ZOEY Rate adds our rating capability behind the systems you already use.
ZOEY bills in GBP, USD and EUR as standard, with further currencies on request, and integrates with the tax engine of your choice.






GBP, USD and EUR
Your Choice of Tax Engine
Built for Multi-Market
UK-Based Team
Expanding Into New Markets?
Growing internationally brings new currencies, tax rules and suppliers. Billing has to keep up.
Multiple Currencies
Customers in different countries expecting invoices in their currency.
Local Tax Rules
Sales and communications taxes that vary by country and state.
New Suppliers
Different supplier files and formats in every new market.
Duplicate Systems
A separate billing platform for each country you operate in.
Built From UK Service Billing Experience
Tekton Billing’s roots are in a market where providers bring services from many suppliers together under their own brand. That experience applies directly to reseller, managed service and subscription businesses internationally.
We start with the way your business works, then build in the requirements of your market, from currencies and invoice fields to accounting, payments and tax.
- Telecoms providers and resellers
- Managed service providers
- Subscription and recurring service businesses
- Networks and providers with their own front end

Make Local Requirements Part of the Solution
We review your market’s requirements alongside your services, so nothing is assumed from an invoice template.
Multi-Currency Billing
Bill in GBP, USD and EUR as standard, with further currencies available on request as you expand into new markets.
Your Choice of Tax Engine
ZOEY connects to specialist communications tax engines, so the right taxes are applied in every market you bill.
Clear Connections
Supplier files, customer identifiers and payment methods reviewed for your market, with any additional work defined up front.

Billing in the United States
For US telecom, MSP and subscription businesses, ZOEY brings recurring charges, usage billing and customer invoices together, with admin and customer portals built in, and bills in USD as standard.
US communications billing often needs a specialist tax determination workflow. ZOEY connects to specialist communications tax engines, and we make tax, payment and accounting requirements an explicit part of your proposal from the start.
- USD billing as standard
- Integration with specialist communications tax engines
- ZOEY Rate behind an existing US billing stack
- Implementation, support and hosting agreed up front
Choose the Right Starting Point
Use ZOEY when you want billing administration, invoice workflows and customer self-service together. Use ZOEY Rate when you want to keep your existing front end and add high-volume usage processing and rating behind it.
ZOEY
The complete platform, with admin and customer portals built in.
ZOEY Rate
High-volume mediation and rating behind your own systems.
Bureau Billing
Our specialists can run billing day to day on your behalf.
ISO 27001 Certified
Certified to ISO 27001 and Cyber Essentials, with 2FA as standard.
Why Partners Choose Tekton Billing
Telecoms providers, MSPs and subscription businesses choose Tekton Billing for far more than software. Here is what sets us apart.
Fully Supplier-Agnostic
Tekton Billing isn’t tied to any network or distributor, so you choose the suppliers that suit your business and change them whenever you need to.
New Providers Built Free
Usage loads from more than 400 supported providers. If one of yours isn’t on the list, we build the connection for you at no extra cost.
Your Brand, Front and Centre
Customers see your logo, colours and web address on their portal, invoices and emails, never ours, giving you a real edge over competitors.
Everything Included
Unlimited users, every module, hosting, branding and the customer portal come as standard, with no light version and no add-on fees.
UK Billing Specialists
Our UK-based team understands billing inside out, from rate cards and supplier files to month-end, and is on hand whenever you need us.
Certified and Secure
Tekton Billing is certified to ISO 27001 and Cyber Essentials, and every ZOEY user is protected by two-factor authentication as standard, with single sign-on (SSO) available for your team and your customers.
International Billing Questions
Which currencies does ZOEY support?
ZOEY bills in GBP, USD and EUR as standard, with further currencies available on request.
How does ZOEY handle sales and communications tax?
ZOEY connects to specialist communications tax engines, and we make tax requirements an explicit part of your solution design.
Where is Tekton Billing based?
Tekton Billing is a UK-based business. We agree implementation, communication, support and hosting arrangements for your operation up front.
Can we keep our own billing front end?
Yes. ZOEY Rate adds high-volume mediation and rating behind your existing CRM, portals and invoicing.
Tell Us Where You Want to Grow
Whether you operate in one country or are exploring another, bring your service mix and a representative bill. We will work through the product fit and a clear delivery plan with you.
01
Tell Us About Your Business
Share the services you sell, the suppliers you use and where billing takes too long today.
02
See ZOEY With Your Scenarios
We walk through your tariffs, supplier files and invoices in ZOEY, from the admin portal to the customer view.
03
Get a Clear Proposal
You receive a clear proposal covering scope, migration and pricing, with no obligation to proceed.