This list covers development companies that build custom billing and invoicing systems when off-the-shelf tools like Chargebee or Zuora don't fit. Automated billing connects charge calculations, invoices, payment collection, and financial records. As companies adopt subscriptions, metered usage, and customer-specific contracts, manual processes become harder to maintain. Reliable links between billing, customer management, and accounting systems are as important as sending invoices on time. Some businesses need a ready-made billing platform, while others require custom development for their own workflows.
1. Itexus
Itexus develops custom fintech systems, including B2B invoicing, payments, and billing automation. In one published project, its team built an autonomous billing and payments platform to create and deliver invoices, collect payments, retry failed transactions, reconcile records, and synchronize accounting data with QuickBooks and Xero.
Its portfolio also includes an online B2B invoicing platform for payment workflows involving commercial agreements and multiple currencies. This experience is useful for financial technology businesses that need tailored approval processes, integrations, and account structures rather than a standard subscription billing application.
Key Facts
- Best for: Custom B2B billing and fintech platforms
- Core services: Billing software development, payment and accounting integrations
- Notable projects: Automated B2B billing and payments platform
- Engagement model: Custom software engineering
- Headquarters: Dover, DE, USA
- Founded: 2013
- Team size: 150+ engineers
Contact Information
- Website: itexus.com
- Email: moc.suxeti@ofni
- Address: 8, The Green, STE road, Dover, DE 19901
- Facebook: www.facebook.com/itexus
- Instagram: www.instagram.com/itexus.soft
- LinkedIn: www.linkedin.com/company/itexus-fintech-software
- Twitter: x.com/ItexusSoft
2. SPD Technology
SPD Technology runs a dedicated billing practice that builds subscription, usage-based and recurring invoicing systems. Its work covers renewals, proration, dunning, self-service customer portals and integrations with accounting, ERP and CRM tools, along with modernization of legacy billing platforms. The company works with Stripe, PayPal, Braintree and Authorize.Net and describes itself as an official Adyen service partner.
Published case studies include a billing platform for Pie Insurance that handles premiums, payment plans and cancellations, invoice automation for Poynt, and a notary billing platform with state-specific tax rules across 20 US states. It suits insurers, SaaS companies and payment businesses replacing an aging billing core.
Key Facts
- Best for: Insurance, SaaS and payments billing platforms
- Core services: Subscription billing, invoicing portals, billing integration, legacy modernization
- Specialization: Recurring and usage-based billing with payment provider integrations
- Headquarters: London, UK
- Founded: 2006
- Team size: 501–1,000 employees
Contact Information
- Website: spd.tech
- LinkedIn: www.linkedin.com/company/spdtechnology
3. Chetu
Chetu builds custom billing software, including electronic bill presentment and payment systems, invoice management modules with OCR and multi-tier approvals, and white-labelled customer and supplier portals. Its recurring and subscription billing work adds dunning management, retry logic, automated payment alerts and real-time account reconciliation with reporting.
The company integrates billing with third-party platforms such as ChargeBee and Recurly, migrates data from legacy systems like Cogsdale, and connects payment gateways and terminals from Clover, First Data, Ingenico, Verifone and Worldpay. Payment modules cover card, ACH, check, SMS and IVR channels. It fits utilities, service providers and merchants with many payment channels.
Key Facts
- Best for: Multi-channel bill presentment and payment systems
- Core services: EBPP, invoice management, subscription billing, gateway integration, data migration
- Specialization: Billing integrations with payment gateways and billing platforms
- Headquarters: Sunrise, FL, USA
- Founded: 2000
- Team size: 1,001–5,000 employees
Contact Information
- Website: chetu.com
- Phone: +44 137 243 2466
- Address: Cobalt Square, 83 Hagley Road, Part 1 First Floor, Birmingham, B16 8QG, United Kingdom
- LinkedIn: www.linkedin.com/company/chetu-inc-
4. OSKI Solutions
OSKI builds business software and integrates internal systems. Its project experience includes CRM applications with invoice-related processes, while its integration services connect CRM data to billing, ERP, and other operational platforms. This is relevant when billing work is spread across separate sales, project, and finance tools.
A tailored engagement can focus on keeping account details synchronized, removing repeated manual entry, and connecting operational records to invoices. OSKI's software development capabilities also support broader modernization efforts in which billing automation is part of an existing internal application rather than an isolated product.
Key Facts
- Best for: Custom internal billing workflows
- Core services: Software development, CRM and ERP integrations
- Specialization: Invoicing workflows and financial data synchronization
- Project type: Business software modernization
- Headquarters: Tallinn, Estonia
- Team size: 51–200 employees
Contact Information
- Website: oski.site
- Email: etis.ikso@tcatnoc
- LinkedIn: www.linkedin.com/company/oski-solutions
5. A-listware
A-listware delivers custom software development and engineering teams for business systems. Its stated development capabilities cover accounts receivable automation, invoicing, financial accounting, and internal finance tools. Those services connect closely to billing modernization projects that need more than a new invoice template.
Businesses can engage a development team to connect customer records with billing data, extend an existing back-office platform, or replace spreadsheet-dependent processes. The service model is especially relevant when invoice generation and financial reporting depend on industry-specific business logic or an established technology stack.
Key Facts
- Best for: Custom finance applications and AR workflows
- Core services: Software development and integration
- Specialization: Invoicing, accounts receivable automation, accounting software
- Engagement model: Engineering services
- Headquarters: London, UK
Contact Information
- Website: a-listware.com
- Email: moc.erawtsil-a@ofni
- Phone: +44 (0)142 439 01 40
- Address: St. Leonards-On-Sea, TN37 7TA, UK
- Facebook: www.facebook.com/alistware
- LinkedIn: www.linkedin.com/company/a-listware
6. Belitsoft
Belitsoft develops business applications that include invoicing, accounting, and billing features. Its professional services automation project links financial documents and invoices to individual client projects, with invoice forms showing project details, billing periods, and attachments. These functions connect payments and invoices to the services recorded by operational teams.
Belitsoft also describes invoice automation in its CRM and veterinary software offerings, covering payment processing, invoice creation, and financial record management. Its engineering services include custom development, integration, and modernization, making it relevant to organizations that need billing embedded in an existing enterprise platform or tailored to a specialized workflow.
Key Facts
- Best for: Invoice modules within custom business applications
- Core services: Enterprise software, CRM development, integrations
- Notable projects: Professional services invoices and project billing
- Industry examples: Professional services, veterinary software
- Founded: 2004
- Team size: 201–500 employees
Contact Information
- Website: belitsoft.com
- Email: moc.tfostileb@ofni
- Phone: +1 (917) 410-57-57
- Address: 700 N Fairfax St Ste 614, Alexandria, VA, 22314 - 2040, United States
- LinkedIn: www.linkedin.com/company/belitsoft-llc
- Facebook: www.facebook.com/Belitsoft
- Twitter: x.com/BelitsoftCom
7. Vention
Vention develops SaaS products and digital platforms that include subscription billing and payment functionality. Its SaaS services cover core features such as payment management through Stripe, account administration, user permissions, onboarding flows, and internal analytics. Billing is engineered as part of the same product architecture as the customer-facing application.
Vention also supports modernization, integration, and engineering team extension for growing software products. Subscription businesses can use this experience to coordinate payment processing, user account changes, and recurring charges within a custom platform. Its SaaS development focus is relevant when a company needs billing functionality fitted to a specific product rather than a standalone invoice tool.
Key Facts
- Best for: SaaS products with subscription billing
- Core services: SaaS product development, integrations, modernization
- Billing capabilities: Subscription billing and Stripe payment integration
- Engagement model: Dedicated engineers, end-to-end product delivery
- Headquarters: New York, NY, USA
- Founded: 2002
- Team size: 1,001–5,000 employees
Contact Information
- Website: ventionteams.com
- Email: moc.smaetnoitnev@olleh
- Phone: +442071172842
- Address: 30 Churchill Place, E14 5RE London
- LinkedIn: www.linkedin.com/company/ventionteams
- Instagram: www.instagram.com/ventionteams
- Twitter: x.com/ventionteams
8. Tata Consultancy Services (TCS)
Tata Consultancy Services provides enterprise technology platforms and modernization services that include automated billing for communications providers. Its TCS HOBS offering connects customer operations, service processes, charging, and invoicing. Published customer work addresses automated billing and invoice generation.
TCS is particularly relevant to large telecom and communications businesses where billing rules must reflect service activation, complex product catalogs, and substantial transaction volumes. Projects in this segment require system integration across operations and finance, as well as the ability to migrate from established billing infrastructure.
Key Facts
- Best for: Large-scale telecom billing transformation
- Core services: Enterprise software, billing modernization, integration
- Products: TCS HOBS
- Industry: Telecommunications
- Headquarters: Mumbai, India
- Founded: 1968
- Team size: 10,001+ employees
Contact Information
- Website: www.tcs.com
- Email: moc.sct@gnitekram.an
- Phone: 678-388-3458
- Address: No. 400, Galleria Parkway, Suite 1060, GA 30339
- LinkedIn: www.linkedin.com/company/tata-consultancy-services
- Instagram: www.instagram.com/tcsglobal
- Facebook: www.facebook.com/TataConsultancyServices
- Twitter: x.com/TCS
9. ScienceSoft
ScienceSoft develops financial software for organizations that need automated billing, accounts receivable management, and reliable connections to payment systems. Its corporate finance offering covers calculation of due amounts, automatic invoice generation, approval workflows, invoice status tracking, payment gateway integration, and dunning processes. The company also builds ERP modules with billing and receivables automation.
ScienceSoft combines consulting with custom implementation. A project may start with mapping the collections process and examining data connections before building software that links invoicing to accounting and customer systems. Its dedicated accounts receivable automation practice is relevant to organizations managing complex collection rules or several financial applications.
Key Facts
- Best for: Custom billing and accounts receivable software
- Core services: Financial software development, A/R automation, ERP modules, integrations
- Billing functions: Invoice generation, approvals, payment processing, dunning
- Headquarters: McKinney, TX, USA
- Founded: 1989
- Team size: 501–1,000 employees
Contact Information
- Website: www.scnsoft.com
- Email: moc.tfosncs@ue
- Phone: +371 66 011 905
- Address: Terbatas iela 14-3 Riga, LV-1011
- LinkedIn: www.linkedin.com/company/sciencesoft
- Facebook: www.facebook.com/sciencesoft.solutions
- Twitter: x.com/ScienceSoft
10. Itransition
Itransition has delivered a cloud-based billing management application that automates invoice distribution and vendor approvals. Its published project includes configurable approval workflows, electronic signatures, batch invoice processing, payment thresholds, invoice reassignment, and reporting for customers and operational staff. A vendor portal allows payees to monitor approval and payment progress.
Integration is central to this example. Itransition connected the billing software with QuickBooks, QuickBooks Online, NetSuite, Sage Intacct, and Microsoft Dynamics GP. This is valuable experience for businesses that want to improve accounts payable or billing operations while retaining the accounting systems already used by their finance teams.
Key Facts
- Best for: Invoice approvals and accounting integrations
- Core services: Billing management software, workflow automation, enterprise integration
- Notable projects: Cloud-based billing management platform
- Integrations: QuickBooks, NetSuite, Sage Intacct, Microsoft Dynamics GP
- Founded: 1998
- Team size: 1,001–5,000 employees
Contact Information
- Website: www.itransition.com
- Email: moc.noitisnarti@ofni
- Phone: +1 720 207 2820
- Address: 160 Clairemont Ave, Suite 200, Decatur, GA 30030
- LinkedIn: www.linkedin.com/company/itransition
- Facebook: www.facebook.com/Itransition
- Twitter: x.com/itransition
11. Andersen
Andersen develops enterprise software for communications providers, including the billing and payment components of digital business support systems. A published telecom project covers invoice generation, dunning for postpaid accounts, pricing catalogs, customer subscriptions, and payment acceptance through bank cards, automatic payments, and direct debits.
The wider architecture connects invoicing with order processing, customer records, inventory, and network provisioning. This is relevant for operators whose charges depend on subscription events and changing services instead of one-time transactions. Andersen also provides architecture design, business analysis, QA, and integration services around the software components needed to support these workflows.
Key Facts
- Best for: Telecom billing and digital BSS transformation
- Core services: Enterprise development, billing workflows, payments integration
- Relevant functions: Invoicing, collections, automated payments, customer management
- Industry: Telecommunications
- Headquarters: Warsaw, Poland
- Founded: 2007
- Team size: 1,001–5,000 employees
Contact Information
- Website: andersenlab.com
- Email: moc.balnesredna@tcatnoc
- Phone: +48 22 390 64 08
- Address: 1 Rondo Daszyńskiego, 23rd floor, Warsaw, 00-843, Poland
- LinkedIn: www.linkedin.com/company/andersen-lab
- Instagram: www.instagram.com/andersen.global
- Facebook: www.facebook.com/AndersenSoftwareDev
- Twitter: x.com/AndersenLabs
12. Intellias
Intellias built automated telecom billing software for a Swiss wholesale IP telephony provider. Its system replaced manual invoice procedures with configurable billing functionality supporting prepaid, postpaid, and mixed contract arrangements. The project also included provisioning features and improvements to the provider's customer portal.
Intellias works on modern business support systems and real-time charging for telecommunications businesses. Its projects address usage-based pricing, service subscriptions, invoice operations, and customer self-service. This background is particularly relevant to billing platforms where the amount charged depends on a complex service contract or actual consumption rather than a fixed monthly fee.
Key Facts
- Best for: Automated telecom billing and usage-based charging
- Core services: Telecom BSS development, billing engineering, provisioning, integration
- Notable projects: Swiss IP telephony automated billing system
- Billing models: Prepaid, postpaid, mixed contracts
- Founded: 2002
- Team size: 1,001–5,000 employees
Contact Information
- Website: intellias.com
- Email: moc.sailletni@ofni
- Phone: +1 857 444 0442
- Address: 500 West Madison Street, Suite 1000, Chicago, IL 60661
- LinkedIn: www.linkedin.com/company/intellias
- Instagram: www.instagram.com/intellias_global
- Facebook: www.facebook.com/Intellias.GlobalPage
13. Innowise
Innowise develops automation software that includes billing and invoicing workflows. Its financial process automation services cover invoices and reporting, while its energy and utilities work includes billing engines built to handle complex tariffs, contracts, and consumption patterns. These systems connect pricing rules with operational data to support accurate invoice generation.
The company also develops industry software for healthcare and telecommunications, where charges and payment processes connect directly with service delivery. Its work can cover workflow assessment, architecture, implementation, testing, and support. That combination is relevant to businesses that need automated billing within a larger custom operational platform.
Key Facts
- Best for: Utility billing and complex business workflows
- Core services: Business process automation, software development, billing engines
- Industries: Energy and utilities, healthcare, telecommunications
- Relevant functions: Tariff processing, invoicing, financial workflows
- Headquarters: Warsaw, Poland
- Founded: 2007
- Team size: 1,001–5,000 employees
Contact Information
- Website: innowise.com
- Email: moc.esiwonni@tcatnoc
- Phone: +48 (787) 027 706
- Address: Rondo Daszyńskiego 2B, The Warsaw HUB B
- LinkedIn: www.linkedin.com/company/innowise-group
- Twitter: x.com/innowisegroup
14. DashDevs
DashDevs builds financial applications and payment integrations, including invoicing software. Its mobile application project for small contractors combines invoice creation and tracking with Tap to Pay, Stripe payments, expense management, and job scheduling. It provides a practical example of placing invoicing and payment collection inside the same everyday workflow.
The company also offers robotic process automation for finance departments. Its published bot catalog includes customer invoice generation and delivery, accounts receivable allocation, and accounts payable invoice processing. This combination helps organizations build a connected process around invoicing, payment collection, and transaction reconciliation rather than managing each step in isolation.
Key Facts
- Best for: Fintech payment applications and automated invoicing
- Core services: Fintech engineering, payment integration, RPA, invoicing applications
- Notable projects: Contractor mobile payment and invoicing application
- Automation: Customer billing, A/R allocation, A/P invoice processing
- Headquarters: Wilmington, DE, USA
- Founded: 2011
- Team size: 51–200 employees
Contact Information
- Website: dashdevs.com
- Email: moc.svedhsad@ofni
- Address: 1007 North Orange Street, 4th Floor, Wilmington, DE 19801
- LinkedIn: www.linkedin.com/company/dashdevs
- Facebook: www.facebook.com/dashdevs
- Twitter: x.com/dashdevs
Comparison Table
| Company | Best for | Headquarters | Founded | Team size |
| Itexus | Custom B2B billing and fintech platforms | Dover, DE, USA | 2013 | 150+ engineers |
| SPD Technology | Insurance, SaaS and payments billing platforms | London, UK | 2006 | 501–1,000 employees |
| Chetu | Multi-channel bill presentment and payment systems | Sunrise, FL, USA | 2000 | 1,001–5,000 employees |
| OSKI Solutions | Custom internal billing workflows | Tallinn, Estonia | — | 51–200 employees |
| A-listware | Custom finance applications and AR workflows | London, UK | — | — |
| Belitsoft | Invoice modules within custom business applications | — | 2004 | 201–500 employees |
| Vention | SaaS products with subscription billing | New York, NY, USA | 2002 | 1,001–5,000 employees |
| Tata Consultancy Services (TCS) | Large-scale telecom billing transformation | Mumbai, India | 1968 | 10,001+ employees |
| ScienceSoft | Custom billing and accounts receivable software | McKinney, TX, USA | 1989 | 501–1,000 employees |
| Itransition | Invoice approvals and accounting integrations | — | 1998 | 1,001–5,000 employees |
| Andersen | Telecom billing and digital BSS transformation | Warsaw, Poland | 2007 | 1,001–5,000 employees |
| Intellias | Automated telecom billing and usage-based charging | — | 2002 | 1,001–5,000 employees |
| Innowise | Utility billing and complex business workflows | Warsaw, Poland | 2007 | 1,001–5,000 employees |
| DashDevs | Fintech payment applications and automated invoicing | Wilmington, DE, USA | 2011 | 51–200 employees |
How to Choose an Automated Billing Software Development Company
If packaged billing tools cannot handle your pricing, contracts, or integrations, you need a development partner who understands billing as a financial system, not just invoice generation. Errors show up directly in revenue and customer trust. Compare vendors on how they handle rating, money accuracy, revenue recognition, and failure cases.
Pricing model coverage. Write down your hardest pricing cases: tiered and volume usage, prepaid credits, minimum commitments, mid-cycle upgrades with proration, custom enterprise contracts. Ask the vendor to walk through how their design would model each one. A team that only talks about flat subscriptions will struggle when sales agrees a contract the system cannot represent.
Usage metering and rating. For usage-based billing, ask how events are collected, deduplicated, and rated, and how late or corrected usage is handled after an invoice is issued. Check that raw events are stored so charges can be recalculated and explained to customers. Throughput matters too: confirm the design can process your peak event volume without delaying invoice runs.
Financial accuracy and auditability. Billing code must handle money precisely. Ask how they store amounts and currencies, round taxes, and prevent duplicate charges through idempotent operations. Look for immutable invoice records, credit notes instead of edits, and a full audit trail. Ask how finance can reconcile billing totals with payment processor payouts and the general ledger each month.
Payments and dunning. Check experience with your payment providers, such as Stripe, Adyen, or bank direct debit, and with PCI DSS scope reduction through tokenization. Ask how failed payments are retried, how dunning emails and account suspensions are configured, and how card updater services are used. Weak dunning logic is one of the most common causes of avoidable revenue loss.
Tax and revenue recognition. Ask how sales tax and VAT will be calculated, usually through a tax engine such as Avalara or Vertex, and how invoices meet local requirements, including e-invoicing mandates. For subscription businesses, check that the system produces data for ASC 606 or IFRS 15 revenue schedules. Involve your finance team in this part of the evaluation.
CRM and ERP integration. Quotes and contracts usually start in a CRM and end in an ERP. Ask for examples of syncing with systems such as Salesforce, HubSpot, NetSuite, or SAP, and how conflicts are resolved. Confirm which system owns customer, product, and price data. Clear ownership prevents the mismatched invoices that appear when two systems hold different prices.
Conclusion
Automated billing increasingly forms part of a wider financial operations system. Subscription changes, metered usage, payments, and accounting entries all need consistent information. When assessing a provider, businesses should examine how pricing exceptions are managed and how the system handles failed transactions. Integration with customer records and accounting tools also matters, especially where invoices are generated from several operational sources. Good billing automation removes repeated administrative work while keeping charges, collections, and revenue records transparent.
Frequently Asked Questions
When should we build custom billing software instead of using Chargebee or Zuora?
Build custom when your pricing, contracts, or integrations do not fit what packaged platforms support, or when their fees grow large relative to revenue. Common triggers are complex usage rating, industry-specific invoicing rules, high transaction volumes, or billing that must be embedded in your own product. If a platform covers your needs with configuration, it is usually faster and cheaper.
How much does custom billing software development cost?
Cost is driven by pricing complexity, usage metering volume, the number of payment providers and integrations, tax handling, and reporting requirements. A focused subscription billing module is a much smaller project than a full platform with metering, multi-currency, dunning, revenue recognition, and self-service portals. Budget for ongoing maintenance too, since pricing and tax rules change regularly.
How long does it take to build an automated billing system?
A first version covering core subscriptions, invoicing, and payment collection often takes a few months. Adding usage metering, complex contracts, tax engines, and ERP integration typically extends the timeline. Migration from an existing system needs its own plan, including parallel runs where old and new systems invoice the same period so totals can be compared before switching.
What compliance requirements apply to billing software?
The main ones are PCI DSS for card data, data protection laws such as GDPR, and tax and invoicing rules in each country you bill. Many countries now require e-invoicing in specific formats. Subscription businesses also need data that supports ASC 606 or IFRS 15 revenue recognition. Using tokenized payments keeps card data out of your systems and reduces PCI scope.
What should we prepare before talking to a billing development company?
Prepare your price list and plan structures, examples of your most complex customer contracts, and current invoice samples. Document how usage is measured today, which payment methods and currencies you accept, and the systems billing must connect to. Share current pain points with numbers where you have them, such as manual adjustments per month or failed payment rates.