Web applications that fit the way you work
Standard software rarely fits perfectly. We build what you need, from a simple web application to complex business software: exactly what your process asks for, and nothing more than that.
- 300+ businesses helped
- 9+ years building digital growth
- Full IP-rights included
- Responsible use of AI We use AI where it makes the work better, never to replace the thinking.
Standard software makes you do the adapting
At some point the mismatch starts costing you
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The tool does not do what your process needs
Standard software covers the average user, and your process is not average.
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Dated software that blocks growth
What you work in was built for a smaller version of the business.
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A scatter of separate tools
Every one of them holds a piece, and none of them holds the whole.
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A digital product you cannot buy
What you want to offer your customers does not exist off the shelf.
Our work
A collection of our work
Software built around your process
Every organisation works differently, and most standard tools are built for the average user rather than for you. At some point that mismatch starts charging rent, in inefficiency, in frustration and in growth you cannot reach.
Custom software solves it. We build precisely what you need, and deliberately nothing more, because every feature nobody asked for is one you pay to maintain.
It starts with the right questions
Custom software does not start with code. It starts with understanding. We always begin with a thorough analysis of your processes, your needs and your goals before anyone thinks about a solution.
Workshops to map the process, a functional specification before development starts, and an honest feasibility assessment with the technical advice that comes out of it.
Your software today
- A tool your process has to bend around
- Features you pay for and never use
- Work spread across separate systems
- A project you cannot see the progress of
Your software with JKC
- Software built around how you work
- Only what you actually need
- One place where the work happens
- Working software after every sprint
Building and validating, step by step
We work in two-week sprints, and every sprint delivers working software you can test rather than a status update you have to trust.
That means you correct course early instead of at the end, and you always know exactly where the project and the budget stand.
A foundation that lasts
We do not only build for today. The architecture is designed to be scalable, secure and maintainable, so the software can run for years and be extended without a rebuild.
A documented and secured codebase, room to grow in both users and functionality, and a handover that lets your own team or another party maintain it.
Find out what is worth building
The most expensive custom software is the kind that was never needed.
Get your Growth Check and find out which part of your process is actually costing you the most, and whether software is the answer to it.
Fully Custom Approach
Request a quoteMostly chosen by Scaleups
Your website is designed and built around your goals, customers and way of working. The right route for businesses that want a stronger digital presence now and a platform that can support further growth later.
Best fit for
- Organisations with multiple audiences, services or markets
- Businesses with ambitious growth plans
- Websites that need to connect with CRM, ERP or other systems
- Teams that need a digital foundation built around their exact needs
Hybrid Approach
From €4500Mostly chosen by Startups
Start with proven building blocks, shaped around your brand and goals. A practical route for new concepts and clear website needs that need to look professional, go live faster and remain ready for the next step.
Best fit for
- New businesses and new concepts
- Clear, focused website requirements
- Teams that want certainty around scope and launch
- Businesses that want a strong start without closing off future growth
Why JKC
Why Startups and Scaleups choose JKC
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From Findable to Scalable
One partner for the entire journey: getting found, working smarter, growing further. No more switching between agencies.
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Involved founder, stable partner
The same founder at the helm for 10+ years. You talk directly to the makers, not an account manager.
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We become nerds about your business
We put ourselves in your business's shoes, understand how it works, and know how to get things done.
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Your work, your ownership
All IP rights belong to you. No long contracts, no lock-in. You stay because the partnership works.
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Available when it counts
In case of urgent issues or outages, we're there outside office hours too. What we build works evenings and weekends too.
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People steer, AI accelerates
The speed of AI, the judgment of people. If AI goes down, your project keeps working.
Sectors
Active and experienced in your sector
We serve clients from international innovators to local businesses. JKC is at home in nearly every sector, and the list grows every year.
Contact
Get in touch with your growth partner
- Find out how we can grow your business
- Get a response within 1 business day
- Completely without obligation
Justin van Dongen
Founder & digital growth partner
Contact form
FAQ
Frequently asked questions
WordPress is the content management system behind more than 40% of the web. We use it as a foundation, not as a template: you edit your own pages, and underneath sits an architecture built to your requirements that can talk to your other systems.
Because it is open source, the platform is yours. You can take it anywhere, with or without us.
Most projects go live within three to eight weeks, depending on how much has to be built and how quickly the content is ready.
The roadmap puts a date on it before we start, and at every step you can see where we are against it.
Yes. Every page is built out of blocks you edit yourself, and you get a walkthrough at handover. What you would rather leave to us, we keep doing.
Often, yes. We run a technical audit first: security, speed, structure, and whether the build can carry what you want to do next.
If it can, we take it into maintenance as it is. If it cannot, you get a straight answer about what needs fixing before that makes sense.
Usually the problem is not the design. It is a mismatch between what the site says, who it is trying to reach, and how findable it is.
We audit what is there and come back with what is actually holding growth back and what to fix first, in order of impact. The Growth Scan is the quickest way to get that answer.