Companies within the BTIS Group are located in several cities and cover the entire Poland with their operations. The strongest presence is in the Silesian Voivodeship, where companies such as BART Sp. z o.o. and BART Serwis Sp. z o.o. are headquartered in Sosnowiec. This location houses, among other things, a design office and a technical-commercial department.

For the needs of the logistics department, as well as the implementation and assembly department, there is also a warehouse available in nearby Czeladź. The engineering team of BART Sp. z o.o. is also available for Clients in technical-commercial offices in Wrocław, Warsaw, and Gdańsk.

The main headquarters of INSTAL-FILTER SA is located in Kościan, in the Greater Poland Voivodeship. At the same time, the company has 8,000 m2 of production and warehouse space.