Sack Invent Poland Co.Ltd. with the seat in Warsaw at 24th Buska Street conducts the business activity from 1990 and it's specialized on territorial development and on building and repairing the outer networks of heating, sewage and water pipes. The level of employment depends on build-up of the works and it's between 80 to 140 employees including 15 engineers. The original capital is 514.920 PLN and the real capital is about 6.000.000 PLN.