We are a design office for electronic devices and systems of high reliability. Our specialty are solutions using wireless communication / radio frequencies (in particular LoRaWAN, NB-IoT, LTE-M, but not only). We provide a.o. solutions for the following industries: SPACE, INDUSTRY 4.0, SMART CITY, DEFENSE, railway, maritime. WiRan (www.wiran.pl) is a HARDWARE AND FIRMWARE DESIGN OFFICE, it is the owner of SEZO brand (see more https://sezo.pl/en/)

Leciejewscy is a modern company specializing in precise processing of metals and other materials. We combine experience, innovative technologies, and a personalized approach to every project. Our Services Waterjet Cutting (WATERJET) – precise, material-friendly cutting of metals, plastics, wood, and composites. Laser Cutting – ideal for parts requiring exceptional accuracy and smooth, aesthetic edges Sheet Metal Processing – bending, punching, and preparing parts for the industrial, automotive,

SEZO is a MANUFACTURER AND DISTRIBUTOR of IoT measuring devices, based on LoRaWAN, NB-IoT, LTE-M wireless communication technologies. We are open to adapting them to the project, drawing on the knowledge and experience of the WiRan (www.wiran.pl) team.

Do Czysta is a Warsaw company specializing in professional cleaning of warehouses, office carpets, pressure washing, cleaning and protection of PVC floors. It has been operating on the market for over 15 years, offering comprehensive cleaning services for both individual clients and companies.