We understand Business

Your growth

Our mission

We are digital agency. We help with passion to grow your business via Internet

Our team consists of the best specialists ready to meet the highest expectations. Seeing what is happening in the SME market, we decided to connect the best quality of services, knowledge, and professionalism with the best technology. Such a unique combination allows us to deliver quality and results at affordable prices suitable for small and medium-sized businesses. We are ready to create the best solution for you; we are here to help you. Connect with us, trust the specialists and succeed.


Your business deserves a website at least as good as the value you give your customers. You know it, but due to endless tasks, you never have time to change it.

What we do and deliver

Landing pages

We create effective and beautiful landing pages that are optimized to quickly achieve your goals. No matter if it is lead acquisition, customer contact, purchase, or any other goal. Our landing pages are guarantee of great results.


We design and implement web and mobile applications for your and your business' needs. Business digitalization and automation is our passion.

Professional Websites

We create beautiful, responsive websites based on deep analysis and an individual project. That’s why they are effective and deliver real value for specific business needs. Access to the intuitive website builder panel allows to edit website in a quick and easy way (no IT skills required).


The high quality of the code, powerful SEO options of BOWWE Website Builder, together with SEO optimization done by our team, will let your page and online store land high in google ranking and leave your competitors behind.

Advertising campaigns

We not only create online advertising campaigns, but also manage them and care for delivering great results. We do everything to make the business develop as quickly and efficiently as possible.

Meet our CEO.
He's an experienced online business specialist.

Karol is a serial entrepreneur with extensive knowledge of IT technologies and Business. He founded and ran his companies in Poland, Portugal, the USA, and Great Britain. He has two master degrees:


  • Master engineering degree in Computer Science
  • Master degree in Marketing Management
  • He finished them in Poland and Portugal.
Karol is the IFC (International Finance Corporation, World Bank Group) speaker and advisor in eCommerce and online marketplaces.

For over 15 years, he's enhanced some of the biggest European Financial companies by implementing new technologies. He has been working on core projects for Millenium Bank, Banco Espirito Santo, Polish National Post Office, PKO Bank SA and many more.

For almost ten years, he's been helping startups and small and medium businesses improve their work by consulting and developing Information Technology systems for them.

For about 7 years, he is participating in the world's biggest conferences and expos such as Consumer Electronic Show (USA), Mobile World Congres (Spain), TechCrunch (USA), WebSummit (Portugal), Collision (USA), SLUSH (Finland), Pioneers (Austria), Gitex (Dubai), Targi eCommerce (Poland) and many others. He gains there newest knowledge, observes the trends and represents our company.

Karol is passionate about helping companies grow by adopting IT technologies, using the Internet, and optimizing their internal processes.

Discover Success Stories with Us

WHY it`s worth working with us?


Hundreds of completed projects and clients promoted by us have allowed us to learn how to develop a business on the Internet successfully. But we never stop there and keep gaining new knowledge. We want to use it for you.


Over 13 years of professional promotion of businesses on the Internet allows us to create better projects - based on solid foundations of experience.


Creativity is in our DNA from day one - finding the CONCEPT21 for your success is our mission.


We use multiple IT systems to work much more efficiently, deliver better results, and save time and your money in our daily work.

Satisfied customers

Our satisfied customers are our best showcase. Ask them how effective and satisfing is to work with us and join them.

Let's meet and discuss your project and needs

How do we work?
Step by step to the goal!


Acquaintance. Discussion of the project, terms, prices and other details


Research on competitors and target audience. Creating client's portrait


Development of the logical structure of the site


Development of a visual concept, and then the design itself


From an ordinary picture in PNG to a website in the digital universe

Realize your online potential with us

Let's talk

What our clients say about us

We are constantly verified by our clients

After each project, the client has the opportunity to comment on our work in third-party portals

CONCEPT21 Agency was voted one of the Top Agencies in 2021 by Clutch

It always seems impossible. Until it’s done.

Ready to share your business idea with us?

Let's talk