| ENGIE ITALIA S.P.A. | MI | 06289781004 | 7.500.614 | -444.220 |
| TECNIMONT S.P.A. | MI | 01628410159 | 4.477.455 | 315.013 |
| SERVIZI ENERGIA ITALIA S.P.A. | MI | 03843480272 | 2.169.967 | 242.823 |
| CCS JV CCS S.C.A R.L. | MI | 10828520964 | 608.044 | 53.710 |
| ROSETTI MARINO S.P.A. | RA | 00082100397 | 352.459 | 53.409 |
| ENGINEERING 2K S.P.A. | MI | 01297450338 | 319.029 | 21.093 |
| WOOD ITALIANA S.R.L. | MI | 00897360152 | 249.807 | 3.043 |
| NEXT GEOSOLUTIONS EUROPE S.P.A. | NA | 05414781210 | 239.145 | 45.373 |
| JIMMY CHOO FLORENCE S.R.L. | MI | 07771440968 | 234.030 | 5.439 |
| ENIPROGETTI S.P.A. | VE | 00184530277 | 211.187 | 23.198 |
| RINA CONSULTING S.P.A. | GE | 03476550102 | 211.146 | 23.347 |
| HERATECH S.R.L. | BO | 03578271201 | 160.535 | -6.106 |
| RINA SERVICES S.P.A. | GE | 03487840104 | 151.360 | 9.083 |
| JIMMY CHOO FLORENCE S.R.L. | FI | 07771440968 | 148.894 | 6.091 |
| CHELAB S.R.L. | TV | 01500900269 | 141.931 | 27.984 |
| BUREAU VERITAS ITALIA S.P.A. | MI | 11498640157 | 132.580 | 21.412 |
| AKKODIS ITALY S.R.L. | TO | 07576640010 | 123.679 | 10.458 |
| SOCIETA' INIZIATIVE NAZIONALI AUTOSTRADALI - S.I.N.A. S.P.A. | MI | 00847450152 | 106.939 | 29.308 |
| DUMAREY AUTOMOTIVE ITALIA S.P.A. | TO | 09075820010 | 100.950 | 3.544 |
| SCHLUMBERGER ITALIANA S.P.A. | MI | 00152380341 | 93.698 | 14.710 |
| INTERTEK ITALIA S.P.A. | MI | 06031680017 | 89.020 | 6.218 |
| SCD JV SCD S.C.A R.L. | MI | 11061180961 | 88.148 | -521 |
| DNV BUSINESS ASSURANCE ITALY S.R.L. | MB | 06247370155 | 83.812 | 5.602 |
| LABANALYSIS ENVIRONMENTAL SCIENCE S.R.L. | CH | 01532600697 | 75.382 | 25.873 |
| CONSORZIO PER LA TUTELA DEL FORMAGGIO GRANA PADANO | BS | 02184450159 | 73.468 | 1.173 |
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