Who We Are?


[ Driven by Results,
​Powered by Expertise ]
A guy with a girl in the rays of green light
A guy with a girl in the rays of green light
A guy with a girl in the rays of green light
We’re a team that believes in doing things right—no buzzwords, no empty promises. With over 1,500 projects under our belt, we’ve learned exactly what businesses need to grow and succeed. Our focus? Clear strategies, smart tools, and solutions that deliver real results.


Have a challenge? Let’s solve it. Need support? We’ll handle it. From helping you stand out online to streamlining your operations, we’re here to drive meaningful progress for your business. Whatever your goals, we’ll work together to make them happen​.

Concept21 in numbers


+1500
Successfully launched projects
+155k
leads generated
15
years in business

More results

For a SaaS startup, we reached 75,000 signups

without spending a single dollar on advertising!

Why did we
choose the name CONCEPT21?

Beautiful crown made of gold with green stones
At Concept21, the number 21 symbolizes victory, just like in Blackjack, where hitting 21 is the ultimate win. In the same way, we partner with our clients, working as a team to outsmart the market and secure success together.
The number twenty one glows green neon
In numerology, the number 21 is associated with creativity, independence, and personal growth. It signifies positive change and the expansion of horizons.

Meet our leaders:


Karol Andruszkow
Karol Andruszkow
CO-OWNER & CEO
Dmytro
Dmytro
UI/UX Designer
Wiktor
Wiktor
Business Analyst
Wojciech Andruszkow
Wojciech Andruszkow
CO-OWNER & CTO
Karolina
Karolina
Content Specialist
Natalia
Natalia
Social Media Specialist
Yakiv
Yakiv
Web Developer
Krzysztof
Krzysztof
UI/UX & Graphic Designer
Max
Marcel
Graphic Designer
Pawel
Adrian
Growth Hacker
Maciej
Maciej
Web Developer
Alina
Alina
Graphic Designer
Natalia
Michalina
Project Manager
Karolina
Marta
Growth Hacker
Wiktor
Jose
Fullstack Developer
Krzysztof
Paulina
Social Media Specialist
Yakiv
Hubert
Fullstack Web Developer
Pawel
Dmytro
Web Developer
Max
Gabriela
SEO Specialist
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Join our deck as the next card, and you're guaranteed to play

WITH THE BEST!

Let’s Connect

Let’s Talk About Working Together
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