6+ Years

65+ Projects

A dedicated web development partner with an in-house team armed with strategical, design and technical skills.

Web Development end-to-end solutions

500+ Integrations

10+ Countries
Tallinn, Estonia
  • Reducing manual work through the automation of the order process from customer to factory See project
  • 48h challenge - Creating a brand book and landing page from zero - Garage48 Hackathon See project
By combining modern tools and techniques, we can create effective solutions.
In-house team

All projects are carried out from start to finish by our experienced team members.

Full stack

We have the skills to develop complex solutions from front to back end.

Deliberate solutions

All solutions are justified, analyzed, and carefully considered.

Holistic approach

We view the technical solution as a whole from the perspective of your company.


Comprehensive web development solutions, thoughtfully implemented and results-oriented

Custom solutions Websites E-commerce MVP's Digitalising processes Automatisations
UI/UX Design

Elaborating the project, mapping out necessary functionalities and user journeys (UX design, wireframe), and ultimately creating a clear design language that aligns with the rest of your company’s image and brand.

Web Development

Our full stack in-house team is proficient in several widespread programming languages and has extensive experience in using various common off-the-shelf solutions.


API integrations and microservices to ensure your solution “communicates” with the necessary databases and software, including payment and delivery options, accounting, customer management and warehouse programs, as well as marketing tools.

We succeed when you do
Alo Naelapea Adera Executive Search

“Key words that stood out from our cooperation were: active involvement, willingness to find the best solution for us, willingness to understand our business, speed, quick response and good communication. It was not a classic client-supplier relationship, but a project partnership. You will find little of that in the market today!”

Oliver Noemm Modulhus Group

“It’s been a rare privilege to work together with highly motivated team behind XYSUM. This company has over delivered and is truly a hard gem to find in the web design and online marketing jungle. XYSUM team has our full trust over our company’s online presence and our cooperation is most successful.”

Priit Kukk Keha360

“Knowledgeable, fast movers and smooth communicators with an open attitude. They do what they promise and the end result of the work commissioned has led to a long-lasting working relationship with us that continues to this day.”

Jane Kaljulaid Jane Kaerajook

“I would recommend XYSUM to anyone who wants not only a workable end result but also professional and clear communication throughout the project.
With their help, we got a beautiful and well-functioning website with an e-shop. They also thought in every way about how to achieve the best solution for our specific needs.”

Felicia Shekarabi WeddingDreams

“I wanted to work with someone that I feel a good connection with. They were so nice and professional, and made it really fun to work with them. I really enjoyed this process with XYSUM.“

Karin E. Ruut ForteLED

“Their approach and interest in ensuring our company’s growth were commendable. We are so pleased with their work and approach! “

Inga Preimann Samaaria

“Very helpful, punctual and correct. Always ready to give useful advice even when their job does not directly require it. Questions can be answered quickly. Transparent work is carried out and all timescales are adhered to – no fiddling. concrete, fast and clear!”

Mardan H. Wheels24

“We felt XYSUM was the best choice. When we talked to them, they sounded really good and knew what they were doing.”

Jesper B. TenantPass

“They understood our niche very quickly. They showcased a perfect execution of project management in the partnership.”

Mark M. Katuste Remont

“It was a great experience. I feel like I got more than I hoped for.”

Kätlin Judanov Faktory

“Very professional! They offer inventive and best solutions and are helpful and quick to solve situations. Extremely pleasant and friendly communication! We are very satisfied with the work done!”

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Our clients