We are a digital design company known for creating effective interfaces of e-commerce, WWW and software. We work with companies from B2B & B2C sector.

Data Driven Design in Technology

What we do

We treat analysis, designing and engineering as one unified process.
Making project conceptualization, planning and action one process reduces risks associated with changes in complex business environments.

Business Design & Consulting

The store can be developed and transformed in various ways. We will help you see the possibilities and find the best scenario. We do this by running qualitative and quantitative user surveys, listening to stakeholders and rigorously testing business hypotheses.
  • Market research and Benchmarking
  • WWW analytics
  • Usability audit (UX & UI)
  • E-commerce strategy

Interface Design

We translate specific business requirements to functional prototypes and graphic design that can be tested with users. In this way, we can check our solutions concepts.
  • Usability and interface design
  • Graphic Design
  • Usability Tests
  • A/B Test

Interface Implementation

The effective interface requires detailed programming and preparation for display on multiple devices with different resolutions. The cherry on top is well-chosen animations that are now a standard for modern applications. We care about the details.
  • Interface coding
  • Interface animation
  • Implementation on: PrestaShop, WooCommerce, WordPress
  • Support in interface implementation on: Magento, PWA, dedicated B2B platform

We create interfaces for






We create strategies and interfaces based on quantitative and qualitative data.
We believe that positive customer experiences are the result of a solid approach to business, design and technology.
The effects of cooperation often depend on the quality of the relationship. You can be sure that the Partner will take care of your project.
We look at what we do, at the same time we care about details.

Last works

Trans.eu the largest transport exchange in Europe

Design of a unique insurance sales model for transport companies (TransBrokers). Combined with the development of the sales model for the brokerage and agency model. Mobile First Design.

Tubes International leading distributor of hoses and connectors in Poland

Redesign project of the B2B store platform for users of responsible websites (RWD). Combined with data analytics, expert analysis of current solutions and usability services design (UX + Design).

Europa.jobs the largest portal with work abroad for specialists

We worked with the company Work in the Union on the concept and interface of a new work portal. The scope of work included conducting creative workshops and functional and graphic design of the interface in mobile and desktop versions.

Pneumat System leading pneumatic distributor

For the Pneumat system, we conducted a full audit of the ecommerce platform. The project included: expert analysis, data analytics, research with the company's clients. The result is a long-term Roadmap for platform development.

Iluve leading start-up - lighting store

For Iluve, we carried out a 6 month sales scaling and conversion optimization project. The project covered all areas of the company except logistics. Sales increased by 50%.

Strategiczni SEO & SEM agency

Implementation of the company website, together with the communication strategy and agency market research. High speed requirements and Google Page Speed test. Met at the level of 99/100 (desktop).

Kaczmarek Electric - leading electrotechnics distributor

We started with approaching the company’s digitalization process from the business strategy point of view. Then we proposed two concepts in the form of clickable mockups for B2C and B2B platforms in the Omnichannel model.

Glaser Group - leading Ray-Ban glasses distributor

For Glaser Group we put together a complex report on the company’s current situation that included recommendations for future development. After that, we worked together for a year when we supported Glaser Group in conversion optimization and worked on increasing the traffic in three online stores.

4challenge - leading travel agency organizing mountain expeditions

We took care of complex redesigning of the website and the online sales process. The project included work on the information architecture, mockups, coding and implementation. The project implementation resulted in over 20% increase in quality traffic which was followed by a substantial increase in online sales.

DR MAX - leading pharmacy chain

We designed and implemented „mini CRM” systems for the key areas of the company’s business: dermoconsultants support and product management at the brick and mortar stores. The project was based on innovative visual solutions both for front-end and backend.

3LP logistics for ecommerce

We prepared a corporate website, for the company, which has one of the most modern warehouses in Poland.

ONE platform for B2B stores

An innovative, modern platform that combines the advantages of ecommerce, CRM, and ERP systems. Dedicated to B2B companies, OTREE has designed an entire modern backend that combines the complex needs of B2B customers.

Pneumat leading pneumatics distributor

We designed the UX Design of a modern B2B platform that involved over 500 hours of design. At the end of the project, the conversion rate increased by as much as 50%.

Car for friend cars from all over Europe

For dynamically developing company CFF we prepared a website optimized for acquiring sales leads.

Davines exceptional italian brand

For a unique brand, for which aesthetics, ecology and good design are very important values, we have designed and implemented a complex website with a product catalog.

Fale Loki Koki leader in hairdressing products distribution

For an undisputed leader in hairdressing distribution and a demanding Design client, we have designed a useful and modern B2B platform.


We choose to work with Otree when designing a great customer experience and usability are crucial for the project’s success. We highly appreciate designers’ business experience that is always backed up by accurate data analysis. We really value their intuition and the ability to come up with the right solutions for the right clients at the right point of time. The end results are always all about well-thought through details, impeccable aesthetics and great experience of an end-user.

Artur Piekarczyk Visionary, Allwins

Otree was taking care of redesigning our website. The project included work on the information architecture, mockups, coding and implementation. Otree’s innovative solutions helped the user get much easier access to the information and our offering while giving them a WOW effect that we all really cared about. The project implementation resulted in over 20% increase in quality traffic. Thanks to the increase of traffic and well-implemented SEO strategy, 4challenge’s business grew substantially over a year.

Paweł Sokołowski CEO 4challenge

About us

Otree is like a tree, has strong developed roots that have seen and survived. It grows further, develops broad branches and shares its fruits.
Dawid Sadulski Partner. Head of Business
Experienced e-commerce manager (+15 years), analyst, ecommerce & omnichannel consultant.
Bartłomiej Rybak Partner. Head of Technology
Experienced IT manager (+15 years), analyst, ecommerce & omnichannel consultant.
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