Services Web Application Development

Web applications built to last and built to scale

From internal tools to enterprise platforms, we have been building complex web applications for over 20 years — the same team that built Negometrix from scratch, now building yours.

What we buildReal examplesFAQ

Every type of web application, built properly.

We have built everything from lightweight internal tools to complex enterprise platforms with hundreds of thousands of users. Most of our projects have in common: they are architected to grow, maintained for speed, and delivered on time.

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SaaS platforms
Multi-tenant platforms with subscription billing, role-based access, user management, and scalable architecture.
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Internal tools and portals
Operational dashboards, workflow automation, and internal platforms that replace spreadsheets and disconnected systems — fast to build, easy to maintain.
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Legacy modernization
We rebuild outdated systems (10+ years old) without data loss, downtime, or disruption — leaving you with a modern, maintainable codebase.
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Marketplace and auction platforms
Two-sided platforms with real-time bidding, digital contracts, and KYC flows.
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API development and integrations
REST and GraphQL APIs, third-party integrations, and system connectors — making your stack work as one without manual data transfers.
📋
Records and content platforms
Systems for managing contracts, documents, and compliance — including digital signing, versioning, audit trails, and KYC integrations.

Web platforms we have built.

Every project here was built from scratch by the same team — no outsourcing, no handoffs.

Netherlands' leading e-procurement SaaS
Built from the ground up into a platform used by thousands of public and private organizations across the Netherlands. Full multi-tenant architecture, complex tendering workflows, and a contract management system — acquired by Mercell in 2021.
SaaS.NETMulti-tenantAcquired
Bulgaria's national public procurement platform
A modern, compliant digital platform replacing outdated paper-based processes for public procurement across Bulgaria. Built to handle thousands of concurrent authorities with strict compliance, audit trails, and contract management.
GovTechEnterprise.NET
Vehicle marketplace for state procurement
Transforming the vehicle procurement marketplace in New York State with a modern web platform — replacing a fragmented legacy system with a centralized, auditable solution for state fleet management.
GovernmentMarketplaceWeb App
Custom platform for a group of hospitals
A bespoke web platform boosting efficiency for NVZ hospital member organizations — streamlining communication, reporting and data exchange across the Dutch hospital network.
HealthcarePortalCustom

Frequently asked questions

The questions we get asked most often when starting a new web project.

Our core stack is .NET Core on the backend with Angular or React on the frontend. We also work with Python, Node.js and Vue depending on the project. For cloud hosting we default to Azure, but we deploy to AWS and Google Cloud as well.
A focused MVP typically takes 6 weeks from kickoff to production. More complex platforms with multi-tenancy, complex workflows or integrations can take 2 to 4 months. We use AI across our entire development workflow to move faster without cutting corners on quality. You will get a realistic timeline after a scoping session, not an optimistic one.
Yes. Design is part of our process, not an add-on. We have designers who work alongside developers from day one. We do not hand off a Figma file and disappear — the same team takes the design through to production.
Yes. We start with a code audit to give you an honest assessment of what we are dealing with. We have modernized systems built in .NET 2.0, WebForms, and other legacy stacks — without losing data or uptime.
Most of our clients continue with us after launch. We offer ongoing development retainers, maintenance contracts, and on-call support. We do not build and disappear — the team that built it stays involved.

Ready to build something that lasts?

Tell us about your project. We will tell you how we would build it — honestly, with a realistic timeline and no overselling.

Book a free call See our work