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Experiences that moveyour business forward

A web agency in Brussels, we build websites, online shops, mobile apps and internal tools. Strategy, design and development work together, with no needless layers.

Talk about your idea

BrusselsAnswer within 24 working hours

10+
projects delivered
3
years of experience
3
people in the team
24 h
response time

A message, an answer within 24 working hours, and written scoping before any quote: here’s how it actually works.

Preview of the IZK Agency contact form on mobile

Understand before producing.

The solution that fits your need, not the longest list of features.

Build what matters.

Scope and priorities explained plainly, from the first conversation to delivery.

Illustration of the Restaurant sectorIllustration of the Hair & beauty sectorIllustration of the Real estate sectorIllustration of the Healthcare sectorIllustration of the Events sector

What we do

The building blocks to get moving

Timeline 4 to 6 weeks

Businesswebsites

Five to fifteen pages, written and structured to be found. We start from your trade, not from a template: site structure, content, technical SEO. You update the site yourself.

  • Custom design
  • Technical SEO
  • Back office

Timeline 8 to 12 weeks

Onlineshops

A shop that fits your reality: catalogue, stock, carriers, invoicing, promotions. We then measure the checkout funnel and fix what is holding your sales back.

  • Secure payment
  • Stock management
  • Multilingual

Timeline 3 months minimum

Mobileapplications

iOS and Android from a single shared codebase. From product scoping to store release, with deliveries every two weeks and version upkeep after launch.

  • iOS + Android
  • Push notifications
  • Store release

Timeline set during scoping

Webapps & SaaS

Customer portals, internal tools, dashboards. We replace shared files with a tool your team trusts: accounts and roles, an API, invoicing, an audit log.

  • Accounts & roles
  • API
  • Dashboards

Timeline set during scoping

UI / UXdesign

User research, journeys, clickable mockups tested with real users, then a design system delivered in Figma that your teams can take over without us.

  • Research
  • Clickable prototype
  • Design system

Timeline set during scoping

Websiteredesign

Your site already exists but no longer works for you. We start from what is good in it: an audit of what is there, your content carried over, and a redirect for every old page, so the search ranking you have built is not lost.

  • Audit of the existing site
  • Content carried over
  • SEO migration

And alsoDigital strategyInterface designCustom developmentCopywriting & translation

Our rhythm

From the first conversation to the product online

  1. Step 01

    Set the context

    Your goals, your constraints and what has to change

  2. Step 02

    Choose a direction

    A useful scope, shared and prioritised

  3. Step 03

    Design together

    The journeys and the interfaces take shape

  4. Step 04

    Build and test

    The product moves forward, gets checked and gets ready

  5. Step 05

    Keep it growing

    A foundation ready for the next step

How we work

Choices that are simple and deliberate

  1. Clear thinking

    We look for the solution that fits the problem, not the longest list of features.

  2. Consistency

    Every design, content and development decision serves the same goal, from the start to delivery.

  3. Clarity

    Scope, trade-offs and priorities are explained plainly, so that decisions stay simple.

The founders

The people who do the work

Meet the team

Next step

Have a problem to solve?

Tell us the context, even in a few lines. We come back to you within 24 working hours to work out what comes next.

KevinCo-founder · IZK

What you need

  • Answer within 24 working hours
  • Written scoping before any quote

Frequent questions

What we get asked most

Another question? Write to us

Every project is quoted individually: the amount follows the scope agreed together, not a standard rate card. We first put a written scope in place (pages, integrations, content, priorities), then we cost it.

Count on 4 to 6 weeks for a business website, 8 to 12 for an online shop and at least 3 months for an application. The schedule is set during scoping and kept to.

Yes, entirely. The code, the domain name, the hosting and your content are in your name: you can walk away with all of it at any time.

Yes. We deliver a simple back office for your text, images, news and products, plus an hour of training for your team.

From sole traders to organisations of several hundred people. The scope follows the budget: a small excellent site beats a large half-finished one.

A single point of contact, a staging link updated every week and a short video call. You see the project moving forward continuously.