Rohrputz-Loriol AG, with locations in Spreitenbach (canton of Aargau) and Dulliken (canton of Solothurn), is a long-established sewer service company. It is part of the Marquis Group with the other companies Marquis AG Kanalservice , Clearex Schweiz AG, Steiner AG Kanalservice and Rail & Road AG Kanalservice in the area of sewer services, Aquatec Kanalsanierungen AG in the area of trenchless sewer rehabilitation and EVAG AG in the area of liquid waste disposal. The group has around 140 employees and 45 state-of-the-art special vehicles. This makes it one of the largest and most important providers in Switzerland in the field of sewer services (sewer cleaning, manhole emptying, drain unblocking, remote sewer inspection, sewer rehabilitation, leak testing).