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Custom software solutions. We build where standard solutions stop.

B2B or B2C – we develop exactly what your business needs
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< CAREER > < CONTACT >
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< custom software solutions >

Every digital challenge deserves a tailored solution. Whether B2B or B2C, at 426, we develop custom software that fits your business model, system architecture and target audience. With over a decade of experience, we design, develop and integrate web applications, middleware systems, native and cross-platform apps, Shopware and OXID extensions, as well as custom APIs and complex interfaces.

Our developers are fluent in a wide range of modern programming languages and frameworks – including PHP, Swift, Java, C#, Python, JavaScript, Vue.js, and Node.js. Depending on the project’s requirements, we leverage proven frameworks such as Symfony, Laravel, .NET MAUI, Flutter, Nuxt or React Native to create scalable, secure and future-proof solutions that deliver real value.

PROGRAMMING LANGUAGES & FRAMEWORKS:

  • PHP
  • Swift
  • Java
  • C#
  • Python
  • JavaScript
  • Vue.js


  • Node.js
  • Symfony
  • Laravel
  • .NET MAUI
  • Flutter
  • React Native
  • Nuxt

< custom software solutions >

Why go
custom?

Solutions tailored to your infrastructure and workflows: no compromises, just custom-fit software that meets your specific requirements.

Software that grows with your business and adapts to evolving processes without sacrificing performance or functionality.

High standards tailored to your industry to ensure your applications run reliably and efficiently, even with high data volumes.

Automate and integrate processes that save resources and cut costs in the long term – for sustainable success.

< 426 services >

Our services
at a glance

#01

Custom software development

When existing systems fall short, we design and develop tailored business applications, middleware systems, or complex interface solutions for you. We create customized web applications and portals that integrate seamlessly into your existing infrastructure and intelligently connect your data and business processes. Whether it’s ERP, PIM, or CRM integration: we implement your individual requirements with modern API-first architectures and microservices to ensure your digital infrastructure remains scalable and future-proof.

FIND OUT MORE
#02

App Development

Our mobile solutions support your field staff, optimize logistics processes, or engage your customers through innovative device apps. We develop both native and cross-platform apps for iOS, Android and other systems, delivering intuitive usability, high-performance technologies, and real-time integration with your ERP or shop systems. From initial analysis to design implementation, launch and ongoing maintenance, we guide you professionally – always focused on maximum user-friendliness and long-term value.

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< why choose 426 >

Why work
with 426?

  • 10+ years of experience in e-commerce & custom software development
  • Extensive project expertise across various industries – with valuable cross-industry know-how
  • Experts in complex B2B & B2C solutions
  • In-house middleware for system integration
  • Agile development with personal support

< case studies >

Our solutions in action

Mila - Cow - milk - South Tyrol

<Mila>

#food #b2becommerce #shopware

 GO TO PROJECT
Deutscher Ärzteverlag

<Deutscher Ärzteverlag>

#healthcare #b2becommerce #shopware

 GO TO PROJECT
Combeenation

<Combeenation>

#tech #appdevelopment

GO TO PROJECT
Bioexpress

<Bioexpress>

#food #ecommerce #shopware

GO TO PROJECT
Europatent - Germany

<Europatent>

#tech #interfaces #software

 GO TO PROJECT

From idea to execution – let’s build it together.

CONTACT US
Why go custom?
Our services at a glance
Why work with 426?
Our projects
Contact us

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