We are the Slovak leader in developing custom e-commerce solutions. 29 years of experience, 400+ projects, €200 million annual turnover of our clients. We combine design, development, data, and our own AI agent that monitors and improves your website 24/7 — so you don't lose a single order.
E-shop · B2B portal · Web · AI solution · Web application
Custom Development
Technology adapts to your business - not your business to technology.
We design a solution based on your processes, data, customers, and growth plans. We integrate it with ERP, CRM, or other systems and build it to handle new markets, increasing volume, and functionalities you will need in the future.
Without the limits of ready-made solutions.
Without unnecessary compromises.
With technology ready to grow with your business.
We Offer
We design and develop scalable e-commerce solutions for both B2C and B2B. From technology and integrations to AI monitoring, expansion, and 24/7 support.
Kondela on BUXUS: +10% revenue in the first month and 0 outages
We Offer
We build custom B2B enterprise solutions. We connect ERP, pricing, orders, and business processes so that the company can grow without unnecessary administration and technological limits.
93,500+ products monthly. B2B sales fully integrated with ERP for TSS Group
We Offer
Your entire business under the protection of the FLUIDUM AI agents team. They oversee it 24/7, the AI Recommender supports sales, the Chatbot assists customers, and custom AI solutions automate your processes.
We Offer
From websites that build a brand and bring new opportunities, to applications that digitize key business processes. We design, develop, and integrate solutions with your systems so that they grow with your business.
Through our strategic PPC campaigns, Najsport achieved a staggering 120% increase in click-through rates and an impressive 99% uplift in revenue.
Kondela recorded an immediate increase in turnover in the first monththanks to a reliable and stable solution from ui42.
Feedo recognized the need to modernize its e-commerce platform to stay competitive. With the help of ui42, Feedo underwent a comprehensive digital transformation, resulting in a 5% increase in conversion rate.
With ui42, you will have more than just a software house; you will have a powerful and game-changing partnership that supports your plans and strategy, increases revenue, and elevates your brand to a whole new level. Our e-commerce solutions mediate a revenue of more than 200 million Euros annually. Arrange a free consultation with me by filling out the form at the bottom of the page.
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10 years
Average business relationship
99%
clients with a reference
If we were to create a new e-shop again, we would choose ui42 again.
"We wanted to show that PSS is changing on the website as well. And not just through cosmetic changes or a change of website design. We wanted to have the new website firmly in our strategic hands and use it as a full-fledged and measurable sales channel. We are glad that we selected a company that helped us in this difficult task through a competitive process. We are looking forward to the new website and to continuing our cooperation with ui42."
"We have excellent experience with the company ui42, the cooperation with them is always professional and efficient. A big thank you goes to the project manager Rastislav Sásik, whose leadership and organizational skills have significantly contributed to the success of our projects. His attention to detail and ability to solve problems constantly convince me that we have chosen the right partner. Of course, I realize that this success is due to the entire ui42 team, which does a great job.
Thank you and I look forward to more successfully completed projects."
ui42 is our reliable partner, with whom we always resolve all shortcomings and issues. It was the same during the server replacement, when we could fully rely on ui42, both with the selection of a new server and with the migration of all our e-shops to the new server.
"We would like to thank our colleagues from ui42 for their excellent handling of the migration to the new Feedo website, and that's not just from the perspective of technical SEO. Lazy load, next gen image loading, deleting old code, and the excellent handling of URL migration, are just a few of the things that are mainly reflected in the improvement of conversion rates, and thanks to which we have been hearing positive feedback from our colleagues and customers since the launch of the new website."
"We have been working with ui42 since 2018. During this time, we have managed to build a top-notch e-shop and e-commerce project Najšport. As soon as they took over marketing, all key factors - traffic and turnover - improved significantly. The colleagues from ui42 are always willing to meet our requirements and we can agree on the ideal solution for our company."
"Only a few external partners can fully keep up with the rapid growth that Dedoles has faced since the beginning of last year. Fortunately, ui42 is one of those who can handle this pace and can adapt to often rapidly changing needs. Thanks to this collaboration, the website, which is a key source of turnover, is the most stable element in our IT area."
In collaboration with ui42, there was maximum satisfaction within our team. We encountered high professionalism, willingness to consult every detail, and a very proactive approach. We also want to highlight the excellent work in the actual development of the website, the seamless e-shop, and the interesting design. Satisfaction is also reflected in our customers, who consider our website to be simple and clear, which is our priority.
Our long-term collaboration gained momentum in 2014 when we decided to solve the sale and distribution of our books exclusively through our own website in Slovakia. From our side, the request was to redesign the visuals and to implement B2C and B2B orders in real time - in online connection with our warehouse system. Gradually, we have gradually reached where we are today, and we take trouble-free operation for granted.
I remember when I called ui42 for the first time and Aďo (Andrej Kajan, CEO of ui42) said: "Guys, we won't just build you an e-shop, we're becoming your business partners." And right then and there we knew we wanted this partner.
Contact us
Would you like to have a customized website?
Michaela Recht
Samuel Štassel
Martin Papp
There is no single platform that is best for every project. Shopify, Shoptet, and custom development each have their place – the decision depends on business needs, processes, integrations, and future plans.
Shopify is a strong choice for companies that want to quickly launch or scale an online store, expand abroad, and utilize a vast ecosystem of ready-made solutions. Shoptet is particularly suitable for small and medium-sized online stores in the Slovak and Czech markets.
We recommend custom development when a company has specific processes or requirements that the technology should adapt to – not the other way around. This could include complex pricing, B2B functionality, an atypical purchasing process, extensive integrations with ERP, CRM, or warehouse systems, or specific requirements for expansion.
At ui42, we work with all these solutions. Therefore, we first understand your business and only then recommend the technology that makes the most sense for it.
The development duration primarily depends on the scope of the project, the number of functionalities, integrations, and the readiness of materials on the client's side. Therefore, a simple company website has a completely different schedule than a custom e-shop or a complex B2B portal connected with ERP.
We divide the project into clear stages – from analysis and solution design through UX and design, development and integrations to testing and deployment.
Therefore, we set a specific schedule only after the initial analysis. Instead of a universal deadline, you will receive an estimate based on the actual scope of your project.
After launch, the collaboration doesn't have to end. We also provide operation, technical support, and further development of the solution.
We choose the platform according to the project, not the project according to the platform. We consider the size and type of business, required functionalities, integrations, expansion plans, and budget.
We mainly work with four solutions:
If you are unsure which path to choose, you don't need to come with a selected technology. First, we will look at your needs and recommend a solution that can cover them today and with further growth.
Yes. Integrations are a common part of our custom projects. We connect websites, e-shops, and B2B portals with ERP, CRM, warehouse and accounting systems, payment gateways, carriers, product feeds, and other internal systems.
The goal is for data to flow automatically between systems so that the company does not have to manually rewrite prices, stock levels, orders, or customer information.
When designing integration, we address not only the technical connection itself but also which system should be the source of truth, what data should be synchronized, and what should happen in case of an outage or error.
Therefore, it is good to address existing systems and required integrations at the beginning of the project – they significantly affect the architecture of the entire solution.
Choosing the right CMS is the foundation for the success of your project. There are many boxed and custom solutions on the market with varying degrees of customization. We have summarized and compared the most commonly used ones. So, which one is the most suitable for you?
At ui42, we combine strategy, creativity, technology, marketing, and AI into one entity.
We build brands and visual identities, create websites and e-shops, design UX and CRO, create creative content, and deliver measurable results through performance marketing.
Our solutions are enhanced by FLUIDUM – ui42's AI intelligence, which transforms company data into a competitive advantage.
Thanks to this, you gain a partner who can cover the entire digital ecosystem of your business – from the first contact with the brand to conversion.
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