System integrations that end the double work
Every time somebody copies data from one system into another, your organisation loses time, energy and quality. We build the connections that make your tools work together: reliable, real-time and built to scale.
- 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 data is being carried by hand
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Data moved across by hand
The same record is typed into a second system, every single day.
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Errors, delay and miscommunication
The predictable result of a process that depends on somebody remembering.
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Tools that do not communicate
Each one is fine on its own, and together they cost you a job nobody wanted.
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Growth hits an operational ceiling
The way of working does not scale, so more customers means more manual hours.
A collection of our work
Systems that work together, processes that run themselves
API connections are the digital infrastructure of a growing business. They are also the least visible investment there is, right up until the day the manual work disappears.
We build the connections that let your tools cooperate, from a simple one-way data sync to complex bidirectional integrations, with the reliability to be trusted with the process behind them.
Your system landscape, mapped first
Before we build anything, we want to understand how your systems currently deal with each other. Which data flows where, which steps are manual and where the real bottlenecks are.
An inventory of every relevant system, an analysis of the data flows between them, and a priority order based on impact and feasibility rather than on what is easiest to connect.
Your systems today
- The same data entered twice
- Exports that run overnight, at best
- Errors nobody notices until later
- Connections that break silently
Your systems with JKC
- One entry, everywhere it is needed
- Real-time exchange between your tools
- Error handling and active monitoring
- Integrations that scale with you
Off the shelf or custom, whichever is right
Sometimes a ready-made connector exists. Sometimes it does not, and sometimes the one that exists is the wrong answer anyway.
We pick whatever is most reliable, maintainable and cost-effective for your situation: platforms like Make or Zapier where they genuinely fit, custom API integrations where they do not, and a hybrid of the two where that gives the best result.
Reliability is the whole point
A connection that fails regularly is worse than no connection at all, because people keep trusting it after it has stopped being trustworthy.
So we build with error handling, active monitoring and fallback mechanisms, so your processes keep running through an outage rather than stopping with one.
Find out where the manual work is
Fewer manual hours starts with knowing which handover between systems is costing the most of them.
Get your Growth Check and see which connections would give your team the most time back.
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.