Compare Kozak Group vs Concept21

Side-by-side comparison of features, pricing, services, ratings and more.

Kozak Group

Data & Analytics Website

Kozak Group is an eCommerce development firm founded in 2015 that builds scalable B2B eCommerce platforms and business-critical web and mobile applications. The agency specializes in Magento, Shopify, and WooCommerce, with additional expertise in AI, conversion optimization, staff augmentation, and software development.

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Winner

Concept21

Branding & Design Website

Concept21 is a full-spectrum digital agency based in Wroclaw, Poland, founded in 2015. The team of 50-99 employees has completed over 1,500 projects across web design, development, eCommerce, SEO, branding, and digital strategy.

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Feature Comparison

Attribute	Kozak Group	Concept21
Category	Data & Analytics	Branding & Design
Rating	-	Winner +5.0 higher
Location	Krakow, Poland	Wroclaw, Poland
Services	eCommerce Development Web Development AI Development CRO Staff Augmentation Software Development Web Design SEO Design Services Mobile App Development Digital Strategy Branding UI/UX Design	eCommerce Development Web Development AI Development CRO Staff Augmentation Software Development Web Design SEO Design Services Mobile App Development Digital Strategy Branding UI/UX Design
Industries	eCommerce Automotive Luxury Fintech Food and Beverage Fashion Electronics Consumer Goods Beauty Corporate Services	Construction Consumer Goods Corporate Services Fintech Food and Beverage Hospitality Insurance Design Fashion eCommerce
Pros	Websites consistently achieve 90+ scores on Google PageSpeed Insights Over 11 years of eCommerce development experience serving clients such as Nestle and HP Full lifecycle eCommerce services from strategy and UI/UX design to development and post-launch optimization	Google reviewers praise clear communication, responsiveness, and reliability. Co-founders bring 15+ and 14+ years of experience in eCommerce, marketplace technology, Java, and financial systems. Client list includes Allianz, Walmart, IKEA, Visa, Hilton, and Accor.
Website	Visit Site	Visit Site

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