We specialize in
custom AdTech &
MarTech platform development

Clearcode was founded in 2009 by Maciej Zawadziński and Dominik Jendroszczyk – business partners and entrepreneurs who have been doing business in the Internet industry since 2003.

They started Clearcode with 1 goal in mind; combine their previously gained skills and knowledge of online advertising and analytics and become the leader in AdTech and MarTech platform development.

Why us?

We are not a generic software development company — our teams are passionate about designing and building software for today’s challenging advertising and marketing industries.

We embrace open-source software and love utilizing the latest technologies. Our full-service development teams consist of all the required resources needed to plan, build, and maintain
high-performance advertising and marketing technology
, from UX/UI design, to frontend and backend development, through to infrastructure management.

Clients choose us because of our:

  • Specialization in AdTech & MarTech development – we’ve been designing and building software for companies operating in the online advertising and marketing industries since 2009.
  • Vast knowledge of the AdTech & MarTech ecosystems from both the technical and business perspectives, which allows us to build, launch, and sell products that meet the needs of advertising and marketing companies.
  • Full-service approach to product development from design to development, through to maintenance and support.
  • Commitment to Agile development methodologies, delivering features faster with fewer bugs.

It’s these qualities that make us not just a software development company, but a trusted AdTech & MarTech development partner.


We have 9+ years of experience in building advertising and marketing technology


We spend over 15,000 hours each month designing and building AdTech & MarTech platforms for our clients


Our company’s YOY revenue has increased 40% on average for the past 5 years


We’ve developed over 100 successful projects for clients of all sizes


We’ve built 2 successful companies of our own; one got acquired and the other has raised a Series A round.


Our 100-strong workforce has grown 240% over the past 5 years

Our projects get recognized globally

You’ve probably seen examples of our work in major media publications.

Read articles written by and about us in the media

Our clients love us

Our passion for developing scalable and high-availability AdTech & MarTech platforms and building long-term relationships is evident in our work and echoed by our clients.

I was amazed by how well the Clearcode team were able to understand my needs and add additional value to the process. They really get the unique nature of the ad industry.

Hivewyre logo

Chad Little
Founder & CEO


Our team of 150+ software enthusiasts are managed by passionate technical leaders and entrepreneurs.

Maciej Zawadziński CEO

Piotr Korzeniowski CFO

Grzegorz Jendroszczyk Data Protection Officer

Marta Małecka Head of HR

Piotr Banaszczyk Head of Operations

Tomasz Chmielewski Head of Operations

Rafał Lemieszewski Head of Design

Michael Sweeney Head of Marketing

Grzegorz Łukaszewicz Project Manager

Adam Łukaszczyk Project Manager

Łukasz Małecki Project Manager

Krzysztof Trębicki Project Manager

Talk to us about your project

Schedule a call with one of our development teams and find out how we can apply our skills, knowledge and experience to your AdTech, MarTech, or analytics project

Get a free quote