We help small and medium-sized businesses succeed in the digital world
Your business doesn’t have to be big to operate like one. We provide the strong digital foundation it needs.
Systems for the education sector
Platforms that support teaching, student management, and communication in the field of education.
Online stores (e-commerce)
Building and implementing online stores with a focus on conversion and ease of use.
Websites compliant with WCAG
Designing and developing modern, responsive websites that meet WCAG standards and are tailored to the client’s needs.
WordPress webistes
From a simple business card site to a blog, store, or LMS – all powered by our custom template.
Technical support and development
Providing continuous technical support and the development of existing digital solutions.
As CodeUnion, we are part of MTA Group
At CodeUnion, we design and implement custom web systems, applications, and integrations that help businesses streamline processes and grow digitally. We focus on creating solutions tailored to real user needs — secure, scalable, and future-ready.
As part of the MTA Group, we operate within a teal organizational structure, collaborating closely with SEO, PPC (Google Ads, Meta, TikTok), and influencer marketing teams. This allows us to combine technology, SEO, analytics, and marketing to offer comprehensive support in building online visibility and competitive advantage.
We create with people in mind, act with passion, and grow with every project
Because technology is more than just code. It’s about relationships, trust, and a shared goal. Since 2016, we’ve been helping businesses grow by listening to their needs and turning them into effective solutions.
See how we turn ideas into working solutions
We know that behind every project there’s a person, a need, a story. We listen, ask questions, and create in a way that ensures the outcome is not just functional – but genuinely helpful.
We always start with business analysis
We start by listening – because a good project is not just about the idea, but above all about understanding. We step into your world and look at it as a partner, not an external team.
Next, we create wireframes and design
We design with people in mind. Interfaces should not only look good but feel intuitive – so users feel at home from the very first click.
The next step is development
Tu magia staje się kodem. Budujemy solidne rozwiązania, które są szybkie, skalowalne i gotowe na wszystko – nawet na pomysły, których jeszcze nie masz.
The final step is implementation
We follow proven procedures and checklists to ensure every step of the implementation goes smoothly – without stress or surprises. Our methodical approach ensures the final product simply works.
Optimization and growth
We launch. We observe. We improve. A product is alive, so we stay active too – analyzing data, gathering feedback, enhancing what works, and removing what doesn’t.
Webcare that truly works
We don’t disappear after launch. We’re here when you need us – for ongoing support, updates, or further development. Because a good product is one that lives and grows.
As MTAG, we offer additional services
Technology is just the beginning. We support you beyond that – with SEO, analytics, advertising, marketing, and strategy. So that what we build is visible, reaches the right people, and truly delivers results.
For those who trust us, we are a partner for the long term
Behind each of these brands is the decision not to take shortcuts. They chose us because they were looking for a partner who would not only deliver code, but understand, advise and think along with them. For us, it’s not just a collaboration, but a shared path, full of challenges, ideas and results that really make a difference.
You don’t have to take our word for it
No promises – just real experiences. See what those who’ve walked the full journey with us – from the first meeting to a working product – have to say.
Our new website met the expectations of all stakeholders, and our social media KPIs have increased significantly. We value their excellent price-to-value ratio and the team’s reliable communication.
Maria Kostacińska
Senior Marketing Manager | Trecom
I am very happy with the final result of the Landing Pages designed and implemented by the professionals at CodeUnion. They didn’t just recommend how to do something, but explained it thoroughly and patiently.
Hanna Kniołek
Chief Marketing & Communication Specialist | SGB-Bank S.A.
I was impressed by their thoroughness, professionalism, and positive attitude. The quality of their work—designs, branding, and website—was exceptional. Their proactive approach, attention to detail, and willingness to take responsibility and guide us were invaluable.
Antoine Decayeux
CEO | forell.eu
The results exceeded our expectations. The new website is significantly better – clearer, more intuitive, and performs much stronger. From the start, the CodeUnion team showed genuine commitment to quality. They’re true professionals you can trust – I wholeheartedly recommend them.
Dobromiła Grodzicka
Senior Digital Marketing Specialist | Nutricia
I appreciated the excellent quality, timely delivery, and fair pricing. I always felt supported – the team communicated clearly, shared updates and challenges, and built real trust. Working with them was simply a pleasure.
Adam Matysiak
CEO | HighSolutions Sp. z o.o.
Working with CodeUnion has been a great experience. Their team integrates smoothly with ours, delivering reliable development and UX/UI support that enhances our services and delivers real value. We’re excited to continue this partnership.
Almee Cheng
Digital Project Manager | kwasi.com
I am very satisfied with the cooperation and optimisation of the new website for SEO and SEA. The CU specialists delivered everything on time and responded quickly to my requests. They were friendly, efficient and easy to work with.
Dennis Fink
Director of Marketing & Communications | Labforward GmbH
The CodeUnion project managers we’ve worked with have consistently been highly responsive, well-informed, and a pleasure to work with. We always feel well-supported and confident in our partnership with CodeUnion. Their transparency and professionalism are truly outstanding.
Mikołaj Bleja
CEO & Owner | Horsefield
CodeUnion’s efforts significantly increased leads and conversion rates, meeting my expectations. The team was very collaborative and I felt fully supported and at ease during the project.
Mateusz Klemczak
CEO | Cashbene.com
Do you have an idea, a question or an unfinished project?
We are here to help – humanely, concretely and with commitment.