Software Development
Tailored business applications from concept to delivery – cleanly structured, documented and maintainable in the long run.
- Delphi / Object Pascal
- C# / .NET
- Database backend
Software that stays. Even when everything changes.
NordZentrum GmbH & Co. KG, a software company from Germany, builds, extends and migrates business-critical software in Delphi and C#/.NET – from grown legacy systems to modern database applications. Plus universal app development for iPhone, Android, Windows and Mac from a single codebase, web development and AI automation with Claude. We are fluent in every world – always with the highest standards of software quality.
Continuity spectrum
One codebase story across three decadesMost providers only know one slice. We master the entire range – from the proven codebase to modern architecture. That is exactly what counts when existing software needs to be extended, safeguarded or modernized step by step.
Services
Whether a new application, a grown system or an upcoming modernization – we step in exactly where it hurts.
Tailored business applications from concept to delivery – cleanly structured, documented and maintainable in the long run.
Bring old Delphi or database systems up to date – without putting live operations at risk. Step by step, tested, transparent.
New features for existing applications – even without the original developer. We work our way into unfamiliar code and build on it reliably.
Fast, stable database solutions – from design and tuning to integration and migration between systems.
Structured testing following proven methods – from test planning and design through execution. As an ISTQB Certified Tester we bring quality assurance that goes beyond “it seems to run” – with a high degree of test automation.
Modern, fast websites and web applications – from concept and design to programming. On request with a content management system (CMS) so you can maintain your content yourself: we work with Joomla and SilverStripe, among other common systems. Cleanly built and maintainable long-term – including search engine optimization (SEO) so your website gets found on Google.
Looking to have an app developed that runs on every device? We build universal, cross-platform apps for iPhone, iPad, Android, Windows and Mac – from a single codebase with Delphi / FireMonkey. From idea through development to release on the App Store and Play Store. The source code is yours.
We put AI to productive use in your development and workflows – consulting, automation and implementation with Claude, Claude Code and Claude Design. Proven in our own day-to-day development.
Looking to have an app built that runs everywhere? With Delphi / FireMonkey we develop cross-platform apps from a single codebase – native apps for iPhone, iPad, Android, Windows and Mac at once. That saves time and cost compared to separate development, and your app stays maintainable from one source.
Real cross-platform app development is not a given, even with AI – it takes experience. That is exactly what we bring: 30+ years in software development, and the source code is yours.
Request an app project →Technologies
We rely on technologies we truly master – across many years and many projects.
Why NordZentrum
We modernize legacy software without throwing it away. Proven code stays where it works – modernization happens exactly where it matters.
Original developer no longer available? That is exactly our strength. We work our way into existing systems and continue building reliably.
Concept, development and testing from one source. Clear communication, transparent documentation, predictable results.
// Typical client case if Software.HasGrown and (OriginalDev = nil) then begin NordZentrum.Analyze; NordZentrum.Extend; NordZentrum.Modernize; Result := 'keeps running – better'; end;
Industry experience
Over two decades we have built software for highly diverse requirements – from finance to mechanical engineering.
Process
A clear, transparent path – whether new development, extension or migration.
We understand your system, your goals and the constraints – even with unfamiliar code.
We design a solid solution and lay out scope, steps and risks transparently.
Clean, documented development – iterative and with ongoing coordination.
Structured quality assurance and a handover that lets you keep working.
FAQ
Short answers to the questions we are asked most often.
Yes. We migrate existing Delphi applications step by step to current versions (up to Delphi 13) and modernize exactly where it matters – for example the database layer or individual modules. Proven code stays, and live operations are not interrupted.
That is one of our core strengths. We work our way into unfamiliar legacy code, analyze and document it, and continue developing it reliably – without the original developer.
Yes. With Delphi / FireMonkey we build native apps for iOS, Android, Windows and macOS from a single codebase. That saves time and cost compared to separate development and keeps the app maintainable from one source.
Yes. You receive the complete source code and documentation. There is no lock-in and no black box – you can continue development yourself or with others at any time.
It depends on scope, the state of the existing code and your goals. After a short analysis of your starting point you receive a free, non-binding initial assessment with effort, steps and risks – transparent and without hidden costs.
We use Claude, Claude Code and Claude Design productively in our daily development – for code generation, refactoring, debugging and documentation – and we advise companies on integrating AI automation into their own workflows.
We work with clients across Germany and internationally. We are based in Germany; most projects run remotely with regular coordination in English or German, and on-site meetings are possible by arrangement.
About
Behind NordZentrum stand more than three decades of experience in software development in the Delphi and .NET world. What began as engineering craft is today a well-honed standard: software that not only works today, but is still maintainable in ten years.
Led by its two founders, René Schattka and André Liebetrau, we work with full ownership from concept to testing – with the care that business-critical applications deserve. We are especially at home where grown systems meet modern requirements.
Our aim is not the fastest feature, but the solution that lasts.
Contact
Whether new development, extension or migration of existing software – tell us your starting point. The first assessment is free and non-binding.