| STAVIMEX Slovakia, Bratislava | Accumulation tanks, supply tanks, gas tanks |
| STEIN HEURTEY, Francúzsko | Tanks for gaseous nitrogen |
| MONTSERVIS, Žilina | Cisterns for fuels with ADR |
| POLYAQUA SLOVAKIA, Bratsilava | Sand filter vessels, Cationexchange filter vessels, Anionexchange filter vessel |
| ISTROENERGO GROUP, Levice | Devices for boiler plants |
| SCHNEIDER- Slovensko, Nitra | Air tanks |
| NEA UBACH, Nemecko | Pulse absorber |
| SPP Bratislava | Fittings, exchangeable coils for gas pre-heating |
| OFZ Istebné | Devices for use of waste heat |
| Mondi SCP, Ružomberok | Devices for drying-plant, S.S. heat exchangers, drying heaters |
| U.S.STEEL, Košice | Storage tanks, heaters, heat exchangers |
| MESSER TATRAGAS, Bratislava | Storage tanks for mixture gases, ammonia barrels |
| LINDE TECHNICKÉ PLYNY Slovensko k.s., Bratislava | Ammonia barrels |
| SLOV-CHLAD, Bratislava | Ammonia accumulators |
| SLOVNAFT, Bratislava | Devices for HRP 7 project |
| ABH THERMO, Vienna, Rakúsko | Pressure tanks, sand filter vessels |
| APL Hopfgarten, Rakúsko | Feed tanks, condensate tanks, pressure vessels |
| DOLLINGER INTERNATIONAL Killarney, Írsko | Filter vessels, Oil mist eliminators |
| DUSLO, Šaľa | Pressure vessels, Heat exchangers and coolers for production lines |
| ELTECO, Žilina | Exhaust gas coolers |
| INTECH, Bratislava | Devices for modification of MTBE in Slovnaft refinery |
| PALL Austria Filter, Vienna, Rakúsko | Filter vessels |
| SLOVENSKÉ ELEKTRÁRNE | Pressure vessels, Storage tanks |
| AIR PRODUCTS, Děčín, Česká republika | Ammonia barrels, Chlorine barrels |
| ODENBERG Engineering, Pezinok | Exhaust tanks and Cyclones, Steam accumularors, pressure vessels |
| Cofely Refrigeration , Lindau, Nemecko | Condensers and Evaporators for Chillers |
| Mahle Alkmaar BV, Holandsko | Filter vessels |
| SIEMENS s.r.o., Bratislava | Sand filter vessels |
| STAG AG, Maienfeld, Švajčiarsko | Pressure and non pressure vessels for bulk materials distribution |
| SCHEITERGes.m.b.H, Vienna, Rakúsko | Pressure vessels for hot water plants |
| SPX Dehydration&Process Filtration, Etten-Leur, Holandsko | Adsorber vessels, filter vessels |