Your partner for a cleaner Romania! RER GROUP was initially established in 1996 by the German company RWE AG. RER Group has developed a very high and broad level of expertise and became one of the largest environmental companies in Romania. Our national market presence spans most counties, towns and cities, including the capital Bucharest. RER Group Management has the majority ownership and the control of operations in all the companies which can be found in the section dedicated to them.