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Compare Concept21 vs Sii Poland

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

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Concept21 Agency logo

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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Sii Poland Agency logo

Sii Poland

Data & Analytics Website

Sii Poland is the largest IT and engineering services provider in Poland, with over 3,800 specialists. The company executes technology projects for leading Polish and multinational companies, covering software development, IT infrastructure, product engineering, service desk, training, and testing.

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Feature Comparison

Attribute Concept21 Sii Poland
Category Branding & Design Data & Analytics
Rating
Winner +5.0 higher
-
Location Wroclaw, Poland Warsaw, Poland
Services
  • Web Design
  • Web Development
  • SEO
  • eCommerce Development
  • CRO
  • Design Services
  • Mobile App Development
  • Digital Strategy
  • Branding
  • UI/UX Design
  • Software Development
  • Engineering
  • Business Process Outsourcing
  • Business Consulting
  • Enterprise Applications
  • Business Intelligence
  • Service Desk
  • IT Infrastructure
  • QA and Testing
  • Sii Business Solutions
  • Trainings
  • Big Data Analytics
  • Web Design
  • Web Development
  • SEO
  • eCommerce Development
  • CRO
  • Design Services
  • Mobile App Development
  • Digital Strategy
  • Branding
  • UI/UX Design
  • Software Development
  • Engineering
  • Business Process Outsourcing
  • Business Consulting
  • Enterprise Applications
  • Business Intelligence
  • Service Desk
  • IT Infrastructure
  • QA and Testing
  • Sii Business Solutions
  • Trainings
  • Big Data Analytics
Industries
Construction Consumer Goods Corporate Services Fintech Food and Beverage Hospitality Insurance Design Fashion eCommerce
-
Pros
  • 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.
  • Largest IT and engineering services provider in Poland with over 3,800 specialists.
  • Recognized as a Best Workplace in Europe and Poland.
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