Brand GmbHKufferathRothenburgSebrightCSG Group LtdGreenbankRowan food and biomass engineeringTietjen Verfahrenstechnik GmbHUntha UKAtritor LimitedBaader UK LtdBTS Biogas LimitedCSG Group LtdENSPAR Biogas GmbHHaarslev UK LtdHaarslev UK LtdKomptech UK LtdMavitec Green EnergyMeltogMeWa Recycling MachineryPuehler GmbHRotajet Systems LimitedSEPAmatic