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Karol Andruszkow
Co-founder and CEO of Concept21
Co-founder and CEO of Concept21
How to Build an International SEO Strategy That Works?
Break into new countries with international SEO. Follow our expert SEO strategy for global reach, localization, and faster results.
June 11, 2025

Karol Andruszkow
Co-founder and CEO of Concept21
Co-founder and CEO of Concept21
Why Should You Make Your Website Multi Language?
Discover the key benefits of a multilingual website: reach more customers, boost SEO, increase sales, and gain a competitive edge.
May 30, 2025

Karol Andruszkow
Co-founder and CEO of Concept21
Co-founder and CEO of Concept21
Google AI Overview: Key Statistics & Facts You Need To Know
Over 60% of searches end without clicks thanks to Google’s AI Overview. Find out what this means for your SEO—and how to win in the new search game.
May 26, 2025

Karol Andruszkow
Co-founder and CEO of Concept21
Co-founder and CEO of Concept21
A Comprehensive Guide to Landing an Epic Marketing Internship
Don't miss out on this invaluable resource for aspiring marketers. Discover step-by-step strategies, networking tips, and expert advice to get an internship!
April 24, 2025

Karol Andruszkow
Co-founder and CEO of Concept21
Co-founder and CEO of Concept21
Corporate Marketing: Propel Your Business to The Top
Discover enterprise marketing secrets—brand building, stakeholder engagement, B2B outreach, and performance tracking to elevate your business.
April 24, 2025

Karol Andruszkow
Co-founder and CEO of Concept21
Co-founder and CEO of Concept21
Storytelling Framework: Captivate, Connect, and Conquer!
Unleash your creative genius: master the art of storytelling! Discover the secrets of crafting, captivating narratives, and becoming a copywriting maestro.
April 24, 2025
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Karol Andruszkow
Co-founder and CEO of Concept21
Karol is a serial entrepreneur, e-commerce speaker, and founder of 3 startups. He advised hundreds of companies and was responsible for projects worth over EUR 50 million for financial institutions in Europe.
He earned two master's degrees - Computer Science and Marketing Management - from Poland and Portugal. He has over ten years of experience in Silicon Valley, Poland, Portugal, USA, and UK, helping startups, financial institutions, and SMEs improve their functioning through digitization.
He earned two master's degrees - Computer Science and Marketing Management - from Poland and Portugal. He has over ten years of experience in Silicon Valley, Poland, Portugal, USA, and UK, helping startups, financial institutions, and SMEs improve their functioning through digitization.
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