Websites that do more than look good
Your website is your hardest working employee: it sells, informs and convinces while you sleep. We build WordPress sites that take that role seriously, fast, secure and manageable by your own team.
- 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.
Your website should be working while you are not
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Dated, slow or hard to find
The site you have loses on speed, on search, or on both at once.
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Visitors that do not convert
The traffic arrives and almost none of it turns into a lead or a customer.
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Dependent on an agency for every change
A new paragraph means an email, a quote and a wait.
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The technology has fallen behind
What is under the site no longer meets what visitors expect from it.
A collection of our work
Apple Museum: Pixel-perfect design for an iconic experience
View caseWe do not build templates
A website that works properly works 24 hours a day. It sells, informs, convinces and converts, including at the moments nobody on your team is available.
So we build for your goals, your audience and your brand rather than around a theme: on a technical foundation that is fast, secure and simple to manage, aimed at the result you actually want out of it.
Strategy first, building after
We do not start with design. We start with questions. What does this website have to achieve, who is coming to it, and what has to happen before they act?
The answers decide the build: an audience and competitor analysis, a sitemap and information architecture that follow from it, and a conversion strategy that runs through every page instead of sitting on one.
Your website today
- A site that impresses and little else
- An agency needed for every small change
- Speed and security as an afterthought
- A structure that cannot take another page
Your website with JKC
- A site built to convert
- A backend your own team can run
- Core Web Vitals, SSL and updates handled
- A structure that grows with the business
Technically solid, fast and secure
A beautiful site that loads slowly or has security problems damages both your reputation and your rankings, and it usually does so quietly.
We build on a foundation that protects performance, security and findability: optimised for Google Core Web Vitals, with SSL, backups and regular updates, and technical SEO built in from the start rather than added later.
You are in control, we are behind you
We build on WordPress so you stay in control. Changing text, uploading images, adding a page: that is yours to do, without having to call anyone.
A backend that is genuinely simple to manage, training after delivery, and documentation for the tasks that come up most.
Find out what your site is leaving on the table
A better website starts with knowing where the current one is losing people.
Get your Growth Check and see where visitors drop out, what is holding your findability back and which change would pay for itself first.
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 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.
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.
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
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.