Not all web apps are built equally

Silicon Valley-inspired agency, dedicated to empowering clients with the full potential of their digital presence

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Our journey began 8 years ago, when Kozak Agency embarked on a mission to redefine software development and consulting. With a team of over 50 skilled developers, we stand as experts in crafting exceptional web and mobile solutions across different industries, as well as innovative cloud-based implementations.

Based in Poland, at the crossroads of Europe, our reach extends far beyond borders, including but not limited to UK and USA markets.

Throughout this enduring road full of solidity exams and adventures, we’ve completed over 100 successful projects. The initiatives where we’ve played a developmental role have drawn investments totaling over a { number } which ensured satisfaction of over 90 clients we were working with. Our commitment to excellence is mirrored in every line of code we write and every partnership we forge.

Our expertise embraces a comprehensive range of numerous industries: FinTech, EdTech, HealthTech, PropTech, AgTech, LegalTech, RetailTech, LogTech and more. Assuring the success of your project we employ a mature and purpose-built methodology, enhanced by robust project management and strong expertise of our developers.

Assuring the success of your project we employ a mature and purpose-built methodology, enhanced by robust project management and strong expertise of our developers.


Years in the industry




In-house experts



For sure. Your tech stack is covered

Take a closer look at the cornerstone technologies within our primary stack showcased below. Bear in mind, it only scratches the surface of our diverse technological prowess and capabilities.

Our Expertise

Our comprehensive services encompass every stage of the development process, guiding you seamlessly from inception to completion.

Web Development

With a wealth of experience, we're dedicated to constructing dynamic and innovative web apps that seamlessly translate your ideas into online reality.

Mobile Development

Backed by a dedicated team of skilled developers, we pride ourselves on our extensive experience in building cutting-edge mobile apps.


You can obtain comprehensive and qualified discovery and get on a call with our CTO for free. We're dedicated to advancing your business's growth.


We implement efficient DevOps practices, optimizing your development process, automating deployments (continuous delivery / continuous integration), and ensuring smooth collaboration between development and operations teams.

UI / UX Design

Our skilled UI/UX designers crafting visually captivating and user-friendly interfaces. With a sharp focus on enhancing the overall user experience, our talented team ensures that your users engage with seamless, intuitive designs that make your applications truly stand out.

Quality Assurance

We offer a comprehensive spectrum of QA services, encompassing unit testing, component testing, integration testing, end-to-end testing, performance testing, regression testing, sanity testing, system testing, smoke testing, and user acceptance testing. Our aim is to ensure the utmost reliability, flawless functionality, and peak performance of your applications.

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Product Development RoadMap

How we take your visionary ideas and skillfully transform them into exquisitely crafted products


  • Analisis and scope
  • Goals, objectives, success criteria
  • Budget and resources
  • Project management methodology
  • Team roles
  • Risks and mitigation strategy


  • Design preferenses
  • Develop wireframe/mockup
  • Client’s feedback
  • Finalization and sending to dev phase


  • Backlog grooming
  • Milestones
  • Spring planning
  • Spring execution
  • Sprint demo/review
  • Sprint retrospective
  • Release


  • Unit testing
  • Integration testing
  • End-to-end testing (E2E)
  • Manual testing
  • Cross-browser/cross-device testing
  • Usability testing


  • Public release
  • Post-release maintenance
  • Continued development
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Web Projects Showcase

Spotlighting Our Top Web App Development Cases - Stories of Success

Clients Feedback

What people are saying about us

Kozak Agency output received great feedback from customers for its easy-touse UI and appealing look. The team regularly collaborated via Skype, ensuring a smooth communication flow and timely delivery. Customers can expect a professional and honest vendor team.

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John Romano, CEO