Custom Digital Solutions for Your Business

Digital solutions just right for you

Beyond basic web presence, we dive deep into the technical architecture that powers your business. Whether you are scaling a startup or modernizing a legacy enterprise, we specialize in engineering the missing links between your systems and your goals.

Integrations

We make your systems work together, even when they weren't designed to.

Custom Platforms

Complex web applications, ordering systems, marketplace solutions: We create exactly what you require.

Own Products

We build, launch, and operate tools from scratch.

Modernization

We take over and extend existing enterprise systems.

Solutions that fit

From lean automation for growing companies to enterprise-grade integration: We build solutions that scale to your needs.

AI Integration

If it benefits your product, we integrate AI driven technologies, for example to automate workflows, personalize user experience, or enhance performance.

A whole world of digital solutions

W4 offers a lot more than standard solutions: Whether we create the missing connections between systems, develop applications and platforms or modernize what you already have.

SYSTEM INTEGRATION

Connecting the unconnectable

We specialize in connecting disparate systems, from ERPs to custom workflows, even without modern APIs. Our team engineers custom integration paths using REST APIs, EDI, file transfers, or direct database access to orchestrate data across your entire technology landscape.

APPLICATIONS AND PLATFORMS

More than a website

We build websites that evolve into complex systems: custom databases, third-party integrations, and real-time data flows. From ERP-connected ordering systems to multi-partner marketplaces, we thrive on business logic that goes far beyond simple content publishing.

SCALABILITY

From startup to enterprise

Our integration approach scales with you: Lean and efficient automation for growing businesses or robust, enterprise-grade integration platforms for organizations with complex system landscapes. Same expertise, adapted to your reality.

OWN PRODUCT DEVELOPMENT

Built from scratch

We build tools that solve real-world problems and serve real users. From digital health solutions trusted by medical professionals and insurers, to multi-channel commerce platforms used in production daily.

EXTENSION AND MODERNIZING

Improving your systems

We take over, extend, and modernize existing enterprise systems; adding new capabilities, rebuilding core modules, and transforming platforms into what they need to become. We've done this repeatedly with enterprise-scale platforms, earning the trust of customers who rely on these systems daily.

MULTIPLE APPLICATIONS

Nothing we cannot create

From scaling a digital health network across Switzerland to engineering real-time ERP communications for enterprise giants, we build to suit. Whether it’s modernizing a clunky PIM or architecting bespoke integrations via direct DB access when APIs don't exist, we bridge the gap between complex needs and functional reality.

ENGINEERED FOR COMPLEXITY

Tailored solutions for powerful digital systems

We specialize in building the digital systems that don't exist yet, turning complex technical hurdles into streamlined business advantages. Whether you require deep system integrations that bridge legacy gaps, the modernization of enterprise-grade platforms, or the development of entirely new products from scratch, we engineer solutions designed around your actual workflow rather than a vendor's constraints. From lean automation for growing teams to high-security platforms used across the health and logistics sectors, we provide the custom architecture necessary to scale your operations and connect your entire technology landscape.

Plan your perfect custom digital solution with our team

We partner with you to design custom platforms and deep integrations that align perfectly with your unique workflows. Whether we are modernizing a legacy system or engineering a brand-new product from the ground up, we focus on creating robust, scalable architecture that works exactly how you do.

Martin Pollak

Solutions Engineer

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FAQs

Custom development pays off when standard software no longer fits your processes, when workarounds or licence models become a problem, or when you need to close a technical gap that no off-the-shelf product covers. We give you a straight answer, even if that answer is that a standard solution is the better fit in your case.

A first working system (MVP) typically takes two to three months, medium-sized applications three to six, and complex platforms or enterprise integrations longer. You do not wait for the end result: we work agile in clearly defined milestones with working interim builds and transparent tracking, so after each milestone, you see what has been delivered and where we stand.

The code is yours. We work with open, well-documented technologies and hand over the source code along with the documentation, so you can continue the system with another partner or an internal team. A clean handover clause and an exit strategy are part of the contract.

Yes. After go-live, we can take care of monitoring, security updates, performance tuning, and further development. You can choose flexible service models, from hour packages to a fixed SLA, and the system keeps evolving as your requirements grow.

We connect what is already there instead of replacing it. Even when modern APIs are missing, we work with REST, EDI, file transfers, or direct database access and engineer integration paths across your full system landscape. Existing platforms are modernised or extended step by step while operations continue.