Growcode

AI native software agency, the Netherlands

Build smart software that grows with your business

We build and maintain your software for a fixed fee. You get the speed of AI-native development. We handle the guardrails.

Book a free intro callOr take the free second opinion
Isometric technical drawing: a central orchestration module connects a browser window, a dashboard, a database and an automation node through green data paths.

You work with founders who know what they are doing

Guus (CTO) and Emiel (CEO) built Futy: a SaaS platform we sold to Leadinfo in 2024. Now we offer you as a business owner the chance to scale up by building AI-native software together.

Read our story
Portrait: drawn half-length figures of Guus and Emiel Kolk side by side, both looking straight at the viewer in plain shirts, with their first names handwritten underneath.

The hourly model is over

With an hourly rate you pay for the time it takes, not for what is finished. That worked when building software was purely human work. Now that a large part of it is done by AI agents, hours measure the wrong thing. It penalises exactly the efficiency you came for.

Efficient
AI makes building faster, and we share that gain with you. We help you deliver input efficiently, which is what lets us ship efficiently.
Quality
14+ years of experience in software development. We build with current tooling and make sure everything is secure and properly tested.
Satisfaction guarantee
Not happy with what was delivered this week? You get it back. Pausing or stopping is always possible. The code stays yours.

How we work

Four steps. The first two cost you nothing and commit you to nothing.

  1. Object study: a single block, on the same ground line as the other three steps.
    01Free

    Intro call

    We look at your situation together and say honestly whether this fits. Half an hour. Want a second opinion on a project or a quote? That works too.

  2. Object study: two identical blocks stacked, on the same ground line as the other three steps.
    02€1,500Free

    Discovery

    We dig into your process and systems and translate that into a scope that holds. The result is a project brief that is yours to keep.

  3. Object study: three identical blocks stacked, on the same ground line as the other three steps.
    03from €15,000

    First working version (MVP)

    Within weeks there is something that works. You give feedback on it and gradually take on more ownership of the development.

  4. Object study: four identical blocks stacked, on the same ground line as the other three steps.
    04€5,000 p/m

    Keep building

    The machine runs at full speed and we keep getting faster. You queue up the work, we ship it.

What we have built

Scene: a monitor on a stand showing a dashboard of figures and charts, with the Futy WhatsApp window in front of it on the right and a green round button angled ahead of it.

Futy

Futy is a chatbot platform for small and medium-sized businesses. The chatbot turns website visitors into enquiries, for example through WhatsApp, email, a video call or a quote request. That automated approach lets companies generate up to 300% more leads through their website.

Paying customers at exit
4,000+
Chatbot users per month
36m
Listed in the Dutch SaaS100
2023

Worked with clients such as Eneco, Hornbach, Decathlon and thousands of smaller businesses.

Diagram: a smartwatch connected to a TCP server, which runs on to a central API server, surrounded by a database, a phone running an app and a monitor showing a dashboard, each linked to that API server by a green path.

Qlokkie

Qlokkie received a quote from another app development agency and asked us for a second opinion. That was the start of an AI-native software project built with coding agents. They work out screens and scenarios themselves, straight on the codebase. We build it, inside our guardrails.

Initial quote (at another agency)
€140,000
Invoiced
€20,000
Progress
60%

Qlokkie sells GPS watches for children, paired with an app for parents.

Not happy with the past week? You get it back.

Always cancellable
You commit for three months, but if it is not working you can always stop.
Money back
Not happy with what was delivered? Then you do not pay for that week.
Everything stays yours
The code, the data and the infrastructure. You take what is there with you.
Scene: five grey blocks of differing heights standing against each other, with a board leaning against them showing three lines, each with a green ticked checkbox.

Who builds it

We are brothers, we work remotely from Utrecht and Valencia, and we share a passion for tech and building companies.

More about Guus and Emiel
  • Portrait: pencil-style drawn bust of Guus Kolk looking straight at the viewer with a slight smile, wearing a plain shirt.

    Guus Kolk

    CTO & Senior AI-native developer

    Technical direction, system design, the agent orchestration and the build itself.

    LinkedIn
  • Portrait: pencil-style drawn bust of Emiel Kolk looking straight at the viewer with a slight smile, wearing a plain shirt.

    Emiel Kolk

    CEO & AI-native software consultant

    I guide the early stages and think along with you about the best implementation.

    LinkedIn

Questions about Growcode

  • Growcode is a Dutch AI-native software agency in Utrecht. We build custom software and then maintain it too, for a fixed fee of €5,000 per month. We also take over young codebases from people who built something with AI themselves that is not ready for real use yet.

  • A working MVP starts at €15,000 and is there within three months. After that, further development and maintenance is €5,000 per month. The intro call and the second opinion are free, and the project brief normally costs €1,500 but is free for now.

  • AI-native means that AI coding agents such as Claude Code, Cursor, Codex and GitHub Copilot do the building inside guardrails we design and maintain. The difference with a classic agency that added AI is in those guardrails: the architecture, the tests, the review and the monitoring are all set up for code arriving faster.

  • At Growcode from €15,000. That is three months times €5,000, the minimum term. In those three months you get a working first version you can start testing and using.

  • You commit for three months, but within that period you can stop every week if you are not satisfied. You then get the last week back for free. After three months you can pause or stop at any moment.

  • You do. The code, the data and the infrastructure are your property and you can take them with you at any time. There is no vendor lock-in.

  • After the minimum term you can pause and pay only for hosting and maintenance. Switching development back on is always possible.

  • Anyone can start building an AI prototype. But if you want to run it professionally for your business, you need someone who can look under the bonnet when something goes wrong.

  • Building as little as possible that turns out to be wrong. In practice that means: start small with real users on it, and only expand once those users point out what is missing. Every hour spent on the wrong feature is more expensive than any rate.

  • We can judge that in the discovery step, which is free for now. The first version can often be smaller than people think. And if not, we say so up front.

Drawn double portrait of Guus and Emiel Kolk side by side, with their first names handwritten beside them

Start with a half hour conversation.

You will hear honestly whether this fits. If it does not, we will say so, and you still walk away with an independent read on where you stand.

Book a free intro callSee what it costs first

No sales pitch. If it does not fit, we say so on the call.