We use React, Next.js and TypeScript for responsive, accessible and SEO-friendly frontends. Backends in Node.js, .NET or Python. We plug into your ERP, CRM and auth. You get web apps that perform well and stay maintainable.
We build web applications that are fast, accessible and easy to maintain. Our default stack is React and Next.js with TypeScript – so you get server-side rendering for SEO, a great developer experience and a codebase that scales. Backends are in Node.js, .NET or Python depending on your existing systems and preferences. We integrate with your ERP, CRM and identity provider so users sign in once and data flows automatically. Performance and accessibility are built in from the start, not added later.
Whether you need a customer portal, an internal tool or a public-facing web app – we deliver with clear architecture, tests and documentation. After go-live we offer maintenance, new features and handover to your team if you prefer. We build for the long term: clean code, automated tests and documented APIs so your web application stays maintainable and can grow with your business. Responsive design and accessibility are standard so all users can use your app on any device; SEO is built in where the project is public-facing.
Get in touch for a free consultation; we outline options, typical timelines and next steps without obligation.
Discuss your projectFrequently Asked Questions
Costs depend on scope: simple web portals from around €25,000 excl. VAT; complex business applications with integrations from €50,000–100,000+ excl. VAT. We give a transparent quote after a short briefing.
We use React, Next.js and TypeScript for frontends; Node.js, .NET or Python for backends. We choose based on your requirements, existing systems and long-term maintainability.
A small web portal often 6–8 weeks; medium-sized platforms 3–5 months; larger projects 6–12 months. We work in sprints so you see progress early and can steer.
Yes. We offer hosting, monitoring, security updates and ongoing maintenance so your web application stays secure and can evolve with your business.
A website primarily informs and converts visitors. A web app adds login, roles, workflows and integrations—typical for customer portals and internal tools. If process logic runs in the browser, see our web app development page; if you are unsure, use the web & mobile bridge page.
We keep marketing web development on this page and route process-driven browser applications to web app development and store apps to app development. Each topic has its own entry page with clear internal links—without mixing overlapping content.
Marketing and portal websites differ from process-driven web apps. When login, APIs and business logic run in the browser, use web app development.
Apps and shared product roadmaps: web & mobile development, app development. Overview: Software & Platforms.
Service overview: Software & platforms (overview)
From discovery to architecture, agile delivery, and go-live—structured for measurable milestones and clear ownership.
1. Discovery & vision
We clarify user roles, core workflows, integrations, and non-functional requirements (performance, security, accessibility).
2. IA, UX & API contracts
We define information architecture, key flows, and stable API contracts to CRM, ERP, or IdP—before most of the UI gets built.
3. Iterative development & QA
Sprints with demos, automated tests, security checks, and acceptance with your team—so quality isn't discovered just before go-live.
4. Go-live, monitoring & growth
Deployment, observability, training, and a clear backlog for the next phases—so the platform stays maintainable long-term.
Use our funding calculator to see which government grants may apply to your project.
Björn Groenewold – Managing Director
Service cluster
Related services for Software development services: entry to web, app & ERP
Quick orientation for bespoke software, web apps, mobile, CMS/e-commerce and ERP – with clear separation from specialist pages in this area.
From the field: RankFlowr – KI-SEO-SaaS and Central Command – Lexware, Clockify & Timebutler. All references.
Use our interactive calculator for a first budget indication—free and non-binding.
Thorsten Frieling – Projektmanagement
Project references
Concrete examples with measurable outcomes — swipe through matching references or open the full case study.
On the scheduling page, pick a free slot for a 30-minute intro call about Web Development – straightforward next steps.
Free & non-binding · 30-minute intro call
Book next available slotWeb Development is most effective when it is aligned with your business goals, existing systems, and team capabilities. At Groenewold IT Solutions we combine product thinking, clear architecture, and hands-on delivery so that every project delivers measurable value. We address operational, compliance, and performance aspects early so that later releases stay on track.
Our approach to Web Development emphasises transparent backlogs, close collaboration with your stakeholders, and incremental delivery. Whether you need a discovery workshop, an MVP, or a full-scale implementation, we define scope, effort, and success criteria up front. With over 250 completed projects we have the experience to recommend the right level of investment and the right next steps for your situation.
Explore our services overview for the full portfolio, our topic pages for in-depth articles linked to each service, and the IT Glossary for key terms. For books and practical guides by Björn Groenewold, see publications. If you would like to discuss your project, we are happy to clarify scope, priorities, and a realistic timeline in a short consultation.
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