Compare STX Next vs Concept21

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

STX Next

Branding & Design Website

Europe's largest Python software house, founded in 2005 and headquartered in Poznan, Poland. The company provides full-stack web app solutions, product design, mobile app development, machine learning, and data engineering services to clients across the US, Canada, South Africa, Australia, the Middle East, and Western Europe.

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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	STX Next	Concept21
Category	Branding & Design	Branding & Design
Rating		Winner +0.1 higher
Location	Poznan, Poland	Wroclaw, Poland
Services	Web Development Software Development Mobile App Development Product Design AI Development Big Data Analytics Web Design SEO eCommerce Development CRO Design Services Digital Strategy Branding UI/UX Design	Web Development Software Development Mobile App Development Product Design AI Development Big Data Analytics Web Design SEO eCommerce Development CRO Design Services Digital Strategy Branding UI/UX Design
Industries	Fintech EdTech Gaming Property Technology Retail Travel	Construction Consumer Goods Corporate Services Fintech Food and Beverage Hospitality Insurance Design Fashion eCommerce
Pros	Deep Python expertise with Django, Flask, and Twisted, plus Angular and ReactJS for frontend work Long-term technology partnerships with clients across the US, Canada, South Africa, Australia, the Middle East, and Western Europe Discovery workshops, UX/UI, and web graphic design included before development begins	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.
Cons	One Google review noted a shaky start with communication and DevOps issues, though the agency worked to rectify them	-
Website	Visit Site	Visit Site

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