Aqua Šport, s.r.o., Dubovany

AQUABEST - Ing. Miloslav Remiš, Žilina

AQUA-LIVE, s.r.o., Košice

AQUAPAL Ing. Peter Páleník, Nitra

AQUAViTA PLUS, spol. s r.o., Žarnovica

AQUIFER, s.r.o., Bratislava

BioCompacT spol. s r.o., Bratislava

DNV ENERGO, a.s., Dubnica nad Váhom

E K O P R O G R E S - výrobné družstvo, Trenčín

Treatment of the communal and industrial wastewaters, project, producer, delivery and maintenance of waste water treatment plants, production and delivery of PE chambers - water, flow measuring, sewer, pum ping, house inspection, assorted waste collection containers, biocompost makers, water tanks

Ekologické služby, s.r.o., Strážske

Eko-Salmo,s.r.o., Bratislava 214

ENVICONSULT, spol. s r.o., Bratislava

ENVIRON SERVIS, s.r.o., Vranov nad Topľou

GEOSAN, spol. s r.o., Bratislava 214

HYDROTECH, a.s., Vinosady

Jozef Hujo, Trenčín

Jozef Hupka - AQUIPUR, Bratislava

PUREKO s.r.o., Hrachovo

Ecological activity, research biotechnologies, production enzymes and vermicompost

RNDr. Ján Antal HYDROCOMP, Bratislava