Tesgas S.A. engages in the construction, renovation, and modernization of gas facilities in Poland. The company invests in activities related to the transmission and distribution of natural gas. It is also involved in the construction and renovation of gas networks of high, medium, and low pressures; gas stations and boiler rooms; and facilities related to the extraction of natural gas and crude oil. In addition, the company engages in the construction of LNG, LPG, and CNG gas stations, as well as micro-generation systems; and manufacture of pressure vessels. Further, it operates medium and high-pressure gas stations and gas pipelines; and other gas facilities, including LNG installations, gas boilers, industrial gas installations, etc. Additionally, the company engages in the distribution of natural gas odorizing agent" THT (tetrahydrogen thiophen), a colorless agent that is added to odorless natural gas to make the gas detectable; delivery of THT and filling odorizing installations; adjusting odorizing installations to the possibility of hermetic filling with THT agent; and elimination of small THT leaks from installations, tanks, etc. It also offers design services in the field of gas infrastructure, such as undertaking projects, including high, medium, and low-pressure gas networks; high and medium pressure gas stations; and installations in oil and gas mines. The company was founded in 2000 and is headquartered in Dopiewo, Poland.