Our Recent Projects

Here are some of the projects we are particularly proud of.

Hanton Office

Hanton Office

Project of a modern website for Hanton Office.

HL Plan

HL Plan

A SaaS application helping to lose unnecessary weight. The application is also created for mobile systems.


AISA Foundation

Design of a website, online course platform, and visual identity for the AISA foundation, whose mission is the business and technological education of young people.

Photography Trainer


It was an honor for us to create a new website for the Institute of Oceanology of the Polish Academy of Sciences - one of the oldest websites in the Polish Internet.

Websites as Tools for Business

Our websites and stationary course platforms are not just business cards for companies and specialists in their field. They are primarily tools for effective sales.

Mateusz Petkiewicz

„Graphic design is the packaging of our product. The real challenge is to create valuable content and generate sales of products and services at the right level.”

Project Implementation Process

Mobile Technologies

Responsive websites.

All our sites are adapted to mobile devices. This way, your customers can comfortably use your services.

Access from all devices

Check payments, registrations, and user queries on a tablet, smartphone, and even on SmartTV, if that's more convenient for you. We are aware that you do not always run your business from the office. It's about being able to manage it, even from the Seychelles.

Mobile first - platform for courses adapted to mobile devices

Service Integration


Automate payments and don't worry about providing services and products. Our platform offers integration with the best electronic payment system in Poland.


Issue invoices semi-automatically or automatically right after payment is accepted through the payment gateway.


Send out mass notifications, newsletters, promotions, and information about new services.


Having a chat built into the site, you can support your potential customers on every subpage.


Secure Vimeo hosting without the possibility of downloading the video to disk.

SSL Certificate

A certificate offering a secure connection between the client's computer and the website. This is important, especially in the case of online payments.


Google Analytics statistics will allow you to verify the correctness of marketing activities and check the traffic on your site.


A data center equipped with modern services offering stable operation and connection to the site during promotions and other marketing activities.

Feedback About Our Work

We are extremely pleased when, after implementing a project, we receive positive feedback.

Eliza Ośko-Głowacka Law Office

Eliza Ośko-Głowacka

Eliza Ośko-Głowacka Law Office
„I recommend working with Mr. Mateusz and the Dioma company. The website creation process was smooth, fast, professional, and the organization of work was at the highest level.”

Adriana Herman

Beautygram Eyelash Studio
„I ordered the graphic design of flyers, business cards, and a website. Everything was done perfectly and to my taste. I recommend 100%!”

Joanna Z. Żebrowska

AISA Foundation and Mental Arts School
„Full professionalism. I recommend cooperation.”
Baltic IT

Jakub Lukasiak

Baltic IT
„Full professionalism, great ideas! Definitely recommend for cooperation!”
Paradiz Art

Olimpia Goździewicz

Paradiz Art
„Mateusz is an incredibly talented and creative person. We have been working together for several years and he always shows immense professionalism, the highest quality of services, and an extraordinary sense of aesthetics. I highly recommend! 🙂”

Izabella Grabska

Grabska.pl and Vivamus Law Office
„DIOMA is full professionalism, high quality, reliability, and additionally IT specialists who speak in human language 🙂 It's rare nowadays. I've been using their services for years, entrusting them with all my projects and I can recommend them to everyone with a clear conscience 🙂”
Coemi Music

Wojciech Zięba

Coemi Music
„I recommend the services of Dioma company. Already at the first meeting after presenting the offer, I knew that Mateusz Petkiewicz is a professional whom I can trust. My website www.coemimusic.pl has now undergone the third generation and I can boldly say - THE BEST! Thank you for the accurate feeling, taste, and good advice regarding the construction of my profile. The cooperation during and after is very good. Quick reaction to introduced changes and suggestions during the construction of the website. I wholeheartedly recommend.”

dr hab. Anna Mazurkiewicz

Polish American Historical Association
„Our experience with Dioma was not only positive but truly pleasant. This was the third company we have tried, including so-called professional web design services (Polish and foreign). It took Mateusz to build a web page for our company that is both simple to navigate and complex in that it includes all of the functionalities we needed. It suits our needs perfectly. During our cooperation all of our requests were taken into consideration (including some that no one else wanted to spend time and effort on like adding logos to each photo, password protected access to our clients that are not included in the standard modules). Upon completion, we have received instructions on how to operate and promote it. Dioma provides personalized service at an affordable rate that makes the virtual world more likeable. Thank You!”

Describe your idea and ask for a quote

Each site is tailored to individual needs, so before we determine its price, let's first talk about your business.

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