Meteor partnership

For years, we
produce applications
and we know how to do it well.

We are professionals and you can send us
to the most complicated mission.

Agent Janek

Who we are?

We are specialists. Our priority is to make, all what we do, at the highest level. Since 2009 we deal with programming, design, coding web pages, sites, portals and applications.


We became the official partner of Meteor JS as the first in Poland, and as a first in Lodz we've introduced Bitcoin payment We create startups, love Lean Startup methodology and Customer Development We know many of the technologies and know which one will be the most right for you.

How to meet us?

Software House Cat in Black is situated at Lodz Technopark, where we also provide mentoring for companies after our working hours. You can always come to us for a cup of coffee, or take an online meeting.
Call us: +48 512 483 112

Wrote about us

Awards and honorable mention

Startup Poland
European Startup Days
Pioneers Festival
Startupy w PaƂacu
Economic prize of the President of the Republic of Poland
Strong in Business
Startup Europe Awards

Contact with us
in case of your project

Use the form or write to:


To all entrusted missions we approach with great enthusiasm Each implementation is preceded by long conversation, so that we could develop a completely satisfactory action plan together and so that provided product was very high quality.

We focus on education

In addition, that we educate ourselves continuously, we try to make our contribution, to educate other, was the greatest. We help young entrepreneurs through free classes in selection of technology, marketing, sales and UX. We are helping foundations and associations.


Throughout duration of the project you have an insight into the process of its implementation. On request, we give you access to the repository with application, to the project management system, and project manager care. You can see what we do and on which issue we are working in this moment. You have also access to the documentation. We Regularly prepare reports on the project time-consuming and its current costs.

We like to talk

We like to talk about our work, also when we meet socially. That is why we love to talk about the project with our customers. You can come over for coffee, send email or call us. We are also available on Slack and Skype In case if we were not available , you can leave us messages 24 hours a day.
Call us, let's talk: +48 512 483 112
Adam Trojanczyk, CEO

Look inside

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:

Copyright® Cat In Black 2018