| 2V SRL | A | 42 | Italy |
| ABO VALVE SRO | B | 76 | Czech Republic |
| ACCIAIERIE VALBRUNA SPA | B | 113 | Italy |
| ACTUATOR FLUID CONTROL SRL | B | 73 | Italy |
| AF SYSTEM SRL | B | 44 | Italy |
| AHD ACIERIE HACHETTE ET DRIOUT | B | 163 | France |
| AIDRO SRL | B | 154 | Italy |
| AIR TORQUE SPA | A | 57 | Italy |
| AKZO NOBEL COATINGS SPA | A | 145 | Italy |
| ALFA VALVOLE SRL | B | 69 | Italy |
| ALPHA POMPE SPA | A | 50 | Italy |
| AMMTECH SRL | A | 47 | Italy |
| AMS SPECIAL METALS LTD | B | 190 | Great Britain |
| ANIMA CONFINDUSTRIA MECCANICA VARIA | CG | 13 | Italy |
| API SRL | B | 71 | Italy |
| AQM SRL | A | 129 | Italy |
| ASSOCIAZIONE ITALIANA DI METALLURGIA | CG | 5 | Italy |
| ASSOCIAZIONE ITALIANA SPE ONLUS | CG | 1 | Italy |
| ASSOCIAZIONE VALVECAMPUS | CG | 10 | Italy |
| ASTEC LAM PLAN SRL | A | 6 | Italy |
| ATHENA ENGINEERING SRL | B | 171 | Italy |
| ATV ADVANCED TECHNOLOGY VALVE SPA | A | 120 | Italy |
| AUMA ITALIANA SRL | A | 26 | Italy |
| AUTOMATOR INTERNATIONAL SRL | B | 157 | Italy |
| AZ ARMATUREN GMBH | B | 165 | Germany |
| B.F.E. SRL | A | 93 | Italy |
| BASTAI ENZO SRL | B | 6 | Italy |
| BBD SRL | B | 140 | Italy |
| BELLONI LAMIERE DI BELLONI MARCO & C SNC | A | 37 | Italy |
| BERARDI BULLONERIE SRL | B | 31 | Italy |
| BERNARD CONTROLS ITALIA SRL | A | 118 | Italy |
| BESA ING. SANTANGELO SPA | A | 5 | Italy |
| BEST FINISHING SRL | B | 35 | Italy |
| BFT BURZONI SRL | A | 99 | Italy |
| BIFFI SRL | A | 16 | Italy |
| BILCO ANTIFIRE ENG. SRL | B | 175 | Italy |
| BOMAFA ARMATUREN GMBH | B | 15 | Germany |
| BROCCIATURE CASTELLI SNC | B | 176 | Italy |
| BUROCCO INDUSTRIAL VALVES SRL | B | 148 | Italy |
| C.E. SRL COMPAGNIA GENERALE ELETTRONICA | B | 12 | Italy |
| C.M.D. SRL | A | 178 | Italy |
| CAAST SRL | B | 94 | Italy |
| CARBOLINE ITALIA SPA | A | 78 | Italy |
| CARE - O - VALVE SRL | B | 68 | Italy |
| CARRARA SPA | A | 36 | Italy |
| CARRARO SRL | B | 187 | Italy |
| CATTANEO GIOVANNI VERNICIATURE | B | 183 | Italy |
| CEAP SRL | B | 86 | Italy |
| CENTRO SERVIZI METALLI SPA | B | 166 | Italy |
| CHIMAR SPA | B | 47 | Italy |
| CHUN & VOLLERIN SRL | A | 179 | Italy |
| CLIFFORD SPRINGS LTD | B | 41 | Great Britain |
| COG - C. OTTO GEHRCKENS GMBH & CO. KG | B | 142 | Germany |
| COGNE ACCIAI SPECIALI SPA | B | 72 | Italy |
| COI TECHNOLOGY | A | 5 | Italy |
| COMMERSALD IMPIANTI SRL | A | 100 | Italy |
| COMPARATO NELLO SRL | B | 29 | Italy |
| CONFINDUSTRIA BERGAMO | CG | 4A | Italy |
| CONSIGLIO ABRASIVI SRL | B | 158 | Italy |
| CROTTI FORTUNATO SNC | B | 13 | Italy |
| CTAI SRL | B | 155 | Italy |
| D.E.I. SRL | B | 128 | Italy |
| D.F. EDIZIONI SRL | CG | 2 | Italy |
| DAFRAM SPA | A | 152 | Italy |
| DE TOMI SRL | A | 3 | Italy |
| DELORO COATINGS SRL | A | 143 | Italy |
| DERVAL SRL | A | 186 | Italy |
| DK-LOK CORPORATION | B | 46 | South Korea |
| DONELLI ALEXO SRL | A | 48 | Italy |
| DVG AUTOMATION SPA | A | 66 | Italy |
| ECOMETEO ITALIA SRL | B | 144 | Italy |
| EFFE DUE SRL | A | 7 | Italy |
| EFFEBI SPA | B | 88 | Italy |
| EFFECIEMME COMPONENTI SRL | B | 60 | Italy |
| EGC CRITICAL COMPONENTS | A | 169 | USA |
| EISENBAU SRL | A | 29 | Italy |
| ELEVIA SRL | B | 30 | Italy |
| EMERSON (ASCO NUMATICS SIRAI SRL) | B | 23 | Italy |
| EMME TECHNOLOGY SRL | A | 158 | Italy |
| ENERGEERING SRL | B | 202 | Italy |
| ENERGY VALVES SRL | B | 16 | Italy |
| ENGINSOFT SPA | B | 91 | Italy |
| ENNEVI SRL | B | 169 | Italy |
| ERREESSE SRL | A | 154 | Italy |
| ESAB SALDATURA SPA | B | 151 | Italy |
| EUROTEC ANTRIEBSZUBEHOER GMBH | A | 149 | Germany |
| EXPO VALVE DI S.D.O. SAS | CG | 1A | Italy |
| F.I.P. SPA | B | 162 | Italy |
| F.LLI FOPPIANI TRASPORTI SRL | A | 13 | Italy |
| F.P.T. FLUID POWER TECHNOLOGY S.R.L. | A | 181 | Italy |
| FINAZZI OSVALDO SRL | A | 132 | Italy |
| FIRSA SPA | A | 1 | Italy |
| FIVAL SRL | B | 16 | Italy |
| FLAME SPRAY SPA | A | 139 | Italy |
| FLOUR VALVES SRL | B | 50 | Italy |
| FLOWSERVE VALBART SRL | A | 4 | Italy |
| FLUIDOMATIC SRL | B | 32 | Italy |
| FLUORSEALS SPA | A | 130 | Italy |
| FLUORTECNO SRL | B | 189 | Italy |
| FLUORTEN SRL | A | 85 | Italy |
| FOMAS SPA | A | 159 | Italy |
| FONDERIA AUGUSTA SRL | B | 43 | Italy |
| FRIDLE GROUP SRL | B | 5 | Italy |
| FRUSCA SRL | B | 146 | Italy |
| FUSETTI TRASMISSIONI MECCANICHE SRL | B | 117 | Italy |
| G.I.S.I. - ASSOCIAZIONE IMPRESE ITALIANE DI STRUMENTAZIONE | CG | 3 | Italy |
| GALLI & CASSINA SPA | A | 185 | Italy |
| GALPERTI ENGINEERING AND FLOW CONTROL SPA | B | 4 | Italy |
| GAMBA SRL | A | 167 | Italy |
| GASER TECHNICAL COATING SRL | B | 161 | Italy |
| GEORG FISCHER SPA | A | 121 | Italy |
| GRUPPO ISPAC | B | 37 | Italy |
| GUARNIZIONI INDUSTRIALI TECNICHE CRISTIANI - BISCONTI SRL | B | 159 | Italy |
| GUIN TECHNOLOGY SRL | A | 33 | Italy |
| GWC ITALIA SPA | B | 192 | Italy |
| HELMUT FISCHER SRL | B | 198 | Italy |
| HEMPEL ITALY SRL | B | 191 | Italy |
| HERBERHOLZ GMBH | B | 15 | Germany |
| HI-FORCE LIMITED | B | 173 | Great Britain |
| HPSC SRL | A | 133 | Italy |
| HUTCHINSON GASKET INT. SPA | B | 118 | Italy |
| HYDAC SPA | A | 62 | Italy |
| ICE - AGENZIA PER LA PROMOZIONE ALL'ESTERO E L'INTERNAZIONALIZZAZIONE DELLE IMPRESE ITALIANE | CG | 13 | Italy |
| ICIM S.P.A. | CG | 13 | Italy |
| INDRA SRL | A | 180 | Italy |
| INDUSTRYCHEMISTRY.COM - EDIT BY EDITRICE INDUSTRIALE SRL | CG | 8 | Italy |
| INNOVATIVE INSTRUMENTS SRL | B | 160 | Italy |
| INOX MECC SRL | A | 89 | Italy |
| INOX RIVA SRL | B | 85 | Italy |
| INVALVES SRL | A | 10 | Italy |
| IPCM - EOS MKTG | CG | 6 | Italy |
| IRE-OMBA SPA | A | 61 | Italy |
| ISTITUTO ITALIANO DELLA SALDATURA | A | 129 | Italy |
| ITALCONTROL SRL | B | 62 | Italy |
| ITALVALV SRL | A | 23 | Italy |
| JAMES WALKER SEALING PROD. & SERVICES LTD | B | 77 | Great Britain |
| JOTUN ITALIA SPA | A | 87 | Italy |
| KLEVERS ITALIANA SRL | B | 36 | Italy |
| KLINGER ITALY SRL | B | 81 | Italy |
| L.P. LAV.MECCANICHE SRL | B | 180 | Italy |
| LBI - LES BRONZES D'INDUSTRIE SA | B | 163 | France |
| LCM ITALIA SPA | B | 99 | Italy |
| LEHVOSS ITALIA SRL | B | 103 | Italy |
| LENA ANTICORROSIONE SRL | A | 163 | Italy |
| LGM ENGINEERING SRL | B | 9 | Italy |
| LVF SPA | A | 140 | Italy |
| M.B. VALVESERVICE SRL | A | 15 | Italy |
| M.C.M. SPA | A | 84 | Italy |
| MAGIVAL VALVES SRL | B | 89 | Italy |
| MAPPTOOLS SRL | A | 54 | Italy |
| MECCANICA COLOMBO GIANCARLO E FIGLI SRL | B | 200 | Italy |
| MECCANICA GERVASONI SRL | B | 97 | Italy |
| MECCANICHE MORANDI SRL | A | 151 | Italy |
| MEI VALVOLE INDUSTRIALI SRL | A | 177 | Italy |
| MEK PIPING SRL | B | 8 | Italy |
| MEMIT VALVES SRL | B | 79 | Italy |
| MESA DI SALA G.& C. SNC | A | 39 | Italy |
| METALMINOTTI SAS | B | 181 | Italy |
| METALVAR NEW SRL | A | 157 | Italy |
| METSO ITALY SPA | B | 82 | Italy |
| MIVAL SRL | B | 124 | Italy |
| MMB COSTRUZIONI MECCANICHE SRL | B | 39 | Italy |
| MOLLIFICIO LEGNANESE SPA | A | 171 | Italy |
| MOLLIFICIO RENZO SCOTTI SRL | A | 27 | Italy |
| MOZZONI METALLI SRL | B | 147 | Italy |
| NAUTILUS ACTUATORS SRL | B | 164 | Italy |
| NEMBRINI M.G. VERNICIATURE SAS | A | 31 | Italy |
| NEONICKEL ITALIA SRL | A | 136 | Italy |
| NIPPON PILLAR EUROPE GMBH | A | 191 | Germany |
| NUOVA SIMAT SRL | B | 167 | Italy |
| OFFICINA TERMOPLASTICA MILANESE SRL | A | 147 | Italy |
| OFFICINE AMBROGIO MELESI SRL | B | 53 | Italy |
| OLEODINAMICA MARTINALLI SRL | A | 133 | Italy |
| OMAL SPA | A | 81 | Italy |
| OMB VALVES SPA | A | 75 | Italy |
| OME METALLURGICA ERBESE SRL | B | 1 | Italy |
| ORINGONE SRL | A | 85 | Italy |
| ORION SPA | A | 71 | Italy |
| ORTON SRL | B | 14 | Italy |
| OTMP SRL | A | 41 | Italy |
| PALADON SYSTEMS SRL | A | 20 | Italy |
| PENTA SRL | B | 112 | Italy |
| PERAR SPA | B | 135 | Italy |
| PESSINA ANGELO SRL | B | 179 | Italy |
| PETROLVALVES SRL | B | 108 | Italy |
| PIBIVIESSE SRL | A | 46 | Italy |
| PIE.VER SNC | A | 19 | Italy |
| PIPES, PUMPS & VALVES AFRICA | CG | 11 | South Africa |
| PLARAD ITALY SRL | B | 17 | Italy |
| PNEUMAX SPA | A | 162 | Italy |
| POLICARPO IMBALLAGGI SNC | B | 40 | Italy |
| PRAXAIR SRL | A | 51 | Italy |
| PRECISION FLUID CONTROLS SRL | A | 43 | Italy |
| PRESSBOLT SRL | A | 55 | Italy |
| PRO CONTROL SRL | A | 138 | Italy |
| PRODA ITALIANA SRL | B | 116 | Italy |
| PRODUCE INTERNATIONAL SRL | A | 11 | Italy |
| PROTEC SRL | B | 173 | Italy |
| PUBLITEC S.R.L. | CG | 7 | Italy |
| QUAM SRL | A | 76 | Italy |
| RAC ENERGY SRL | A | 190 | Italy |
| RETTIFICA MECCANICA SRL | A | 7 | Italy |
| RIBEL VALVOLE SRL | B | 32 | Italy |
| RIBONI SEGATRICI SRL | B | 28 | Italy |
| RMT VALVOMECCANICA SRL | A | 12 | Italy |
| ROTORK FLUID SYSTEMS SRL | B | 80 | Italy |
| RTD SRL | B | 120 | Italy |
| RTI SPA | B | 105 | Italy |
| S.M.T. | B | 56 | Italy |
| S.T.C. SRL | B | 153 | Italy |
| SACE SPA | CG | 3A | Italy |
| SAF SRL | B | 71 | Italy |
| SAINT - GOBAIN PPL | B | 33 | Belgium |
| SAPORITI SRL | A | 204 | Italy |
| SCHIEBEL ANTRIEBSTECHNIK GMBH | B | 164 | Austria |
| SEALCORE SRL | A | 85 | Italy |
| SEMCO GROUP SRL | B | 7 | Italy |
| SERVOVALVE SPA | A | 189 | Italy |
| SESTO VALVES SRL | A | 158 | Italy |
| SEVAL SRL | B | 52 | Italy |
| SFEROVA SRL | B | 130 | Italy |
| SHERWIN - WILLIAMS | A | 40 | Great Britain |
| SIDERFORGEROSSI GROUP SPA | B | 129 | Italy |
| SIGMATRE LAB SRL | B | 109 | Italy |
| SIRCA INTERNATIONAL SPA | B | 52 | Italy |
| SITECNA SRL | A | 96 | Italy |
| SLIB ITALY SRL | A | 85 | Italy |
| SMC ITALIA SPA | A | 135 | Italy |
| SPECIALSTEELSTOCK | B | 96 | Italy |
| SPIRALIT SRL | A | 35 | Italy |
| STARLINE SPA | A | 67 | Italy |
| STI SRL | A | 166 | Italy |
| STRUMENTAZIONE INDUSTRIALE SRL | B | 149 | Italy |
| TCM DI SARAGAGLIA FRANCESCO & FIGLI SRL | B | 45 | Italy |
| TECHNE SRL | A | 112 | Italy |
| TECHNETICS GROUP | B | 150 | France |
| TECHNOFLOW SRL | B | 134 | Italy |
| TECNOCRYO SPA | A | 98 | Italy |
| TECNOEDIZIONI GROUP SRL | CG | 9 | Italy |
| TECNOIMBALLI SRL | A | 48 | Italy |
| TECNOMECCANICA SRL | B | 19 | Italy |
| TECNOSALDATURA SRL | B | 22 | Italy |
| TECNOWELD ITALIA SRL | B | 67 | Italy |
| TEXPACK SRL | B | 57 | Italy |
| TH TECH ENGINEERING | B | 144 | Romania |
| THINK PC PROGETTI SRL | A | 124 | Italy |
| TIMGLOBAL MEDIA SRL | CG | 12 | Italy |
| TITALIA SPA | A | 58 | Italy |
| TREVISAN MACCHINE UTENSILI SPA | A | 128 | Italy |
| TRUST VALVES SRL | A | 1 | Italy |
| TUV ITALIA SRL | A | 110 | Italy |
| UVIT IL CINGOLO SRL | B | 152 | Italy |
| VALLAND SPA | B | 136 | Italy |
| VALPRES SRL | A | 32 | Italy |
| VALSAR SRL | A | 28 | Italy |
| VALVITALIA GROUP | A | 106 | Italy |
| VALVOLE HOFMANN BY BONINO ENGINEERING SRL | A | 161 | Italy |
| VALVOSIDER SRL | A | 144 | Italy |
| VARISCO & C. SRL | B | 100 | Italy |
| VENTIL TEST EQUIPMENT BV | B | 153 | Netherlands |
| VERSA PRODUCTS CO INC. | B | 20 | USA |
| VSI CONTROLS SRL | A | 24 | Italy |
| WIKA ITALIA SRL & C. SAS | B | 70 | Italy |
| ZITAC SRL | B | 55 | Italy |
