| MAGNETTI BUILDING S.P.A. | BG | 02053280166 | 64.248 | 4.250 |
| CERAMICHE SERRA S.P.A. | MD | 00180430365 | 64.209 | 18.470 |
| MONDIAL GRANIT S.P.A. | RG | 02819100872 | 64.035 | 8.512 |
| GENERAL BETON TRIVENETA S.P.A | TV | 00198080269 | 62.235 | 13.119 |
| INDUSTRIE CERAMICHE PIEMME S.P.A. | MD | 01014730368 | 61.557 | -778 |
| EMILIANA CONGLOMERATI S.P.A. | RE | 02503180354 | 61.231 | 11.772 |
| ISOCLIMA S.P.A | PD | 00683150288 | 60.824 | 4.312 |
| GRANULATI ZANDOBBIO - S.P.A. | BG | 01368480164 | 60.001 | 9.113 |
| POLIS MANIFATTURE CERAMICHE S.P.A. | MN | 01806870208 | 59.827 | 6.961 |
| GENERAL MEMBRANE S.P.A | VE | 02647430277 | 59.462 | 11.695 |
| WIENERBERGER S.P.A. | BO | 82001290392 | 58.381 | 32.143 |
| CARBOFER TECNOLOGIE S.P.A. | BS | 01832030983 | 57.647 | 8.889 |
| FORNACI LATERIZI DANESI S.P.A. | MI | 04537800155 | 56.309 | 20.976 |
| GRANITO FORTE S.P.A. | CH | 01559250699 | 55.463 | 8.937 |
| BARBETTI MATERIALS S.P.A. | PG | 01286380512 | 55.171 | 3.000 |
| GEBERIT CERAMICA S.P.A | RO | 02095910283 | 53.629 | 3.740 |
| CORNING PHARMACEUTICAL GLASS S.P.A. | PI | 00116570508 | 53.196 | 3.920 |
| ILVA GLASS S.P.A. | PU | 02119380414 | 53.110 | 4.829 |
| ALPACEM CEMENTI ITALIA S.P.A. | PN | 03338380284 | 52.212 | 4.180 |
| BRUSSI COSTRUZIONI S.R.L | TV | 00190560268 | 51.953 | 2.584 |
| NIKOLAUS BAGNARA S.P.A. - A.G.- NB NIKOLAUS BAGNARA | BZ | 00211420211 | 51.804 | 5.263 |
| CERDOMUS S.R.L. | RA | 02620780391 | 51.298 | 6.097 |
| VEBAD S.P.A. | BA | 00291630630 | 50.787 | 1.188 |
| MATCO S.R.L | VR | 03797640236 | 50.607 | 6.929 |
| COIMEC COIBENTAZIONI TERMOACUSTICHE S.P.A. | MI | 12965710150 | 49.422 | 6.181 |