Meteor partnership

Web based applications,
MVP, portals, websites,
software and web design

We know technologies and know which one will be the most right for you

Agent John

Our services

Our priority is to make the highest quality products.

We have rich experience we have gained creating applications, sites, portals and working for companies from different sectors. We assist in the selection of technology and optimal solutions, because we know how important is success for you.

Portale i strony internetowe

Portals and websites

You can count on full support in creating web pages, sites, shops and applications. Our experienced team will be able to help you in a fast way.

Oprogramowanie i web design

Software and web design

We developed applications for the cities, cooperation systems for international corporations, experimental apps. We love to surprise our creativity

Szybkie prototypy, MVP

Fast prototypes, MVP

We will build for you prototype (MVP), which will allow you to quickly verify your idea so we could go to the further development of your product.

Wsparcie techniczne

Technical support

We are able to keep the analysis of your product. And we are able to catch unnatural behavior or errors even before the system crashes.

Edukacja podczas projektu

Education during the project

While working with us you can count on the understanding, education, and the necessary support in the field of technology and design.

Zwinność to podstawa

Agility is the key

We believe that the speed and efficiency of the actions taken by startups in everyday, as well as the methodology they use, can also be used by larger companies.

We are a stable company.

Software House Cat in Black was established in 2009. Our priority is to make the highest quality products. We are situated at Lodz Technopark, where we also provide mentoring for companies after our working hours.

Meet us closer


All our works are covered by a minimum of 12 months warranty. We offer support and post-implementation support. We can continually analyze your website, and if you need us only occasionally we can work for you at a fixed hourly rate.

See projects

Contact with us
in case of your project

Use the form or write to:

Agent John

Software House Cat In Black

(+48) 512 483 112 Adam Trojanczyk, CEO
Adam Trojanczyk
In the case of ongoing projects:
(+48) 690 561 365 Maciej Sielecki
Maciej Sielecki
In the case of new projects:
(+48) 795-661-935 Kamil Mazerant
Kamil Mazerant
Agent John contact box:

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