| Ruc | Nombre o Razón Social | A partir del | Nro. Resolución |
| 20600589190 | FERRO NIPLES E.I.R.L. | 01/02/2022 | 1330050016605 |
| 20479360040 | FERRO PLAST EIRL | 01/09/2017 | 1830050008864 |
| 10089320106 | FERROA GUILLEN CALISTA FORTUNATA | 01/02/2017 | 0230050166003 |
| 20492661890 | FERROA INGENIEROS E.I.R.L. | 01/08/2015 | 0230050134373 |
| 20432348114 | FERROCARRIL CENTRAL ANDINO S.A. | 01/02/2017 | 0110050002105 |
| 20120695372 | FERROCON S.R.L | 01/02/2022 | 1930050007995 |
| 20604686173 | FERROCOR PERU S.A.C. | 01/02/2022 | 0230050316537 |
| 20601477981 | FERROMAQUI S.R.L. | 01/09/2018 | 1830050010264 |
| 20602343104 | FERROMAR CORPORACION S.A.C. | 01/05/2019 | 0230050265674 |
| 20523681037 | FERROMAS S.A.C. | 01/02/2015 | 0230050105884 |
| 20450450996 | FERROMENDOZA E.I.R.L. | 01/04/2018 | 1830050009560 |
| 20121630291 | FERROMOTRIZ S.R.L. | 01/02/2022 | 0530050037278 |
| 20604294941 | FERROPARK R&G S.R.L. | 01/02/2022 | 0730050015651 |
| 20603392419 | FERROPLAST GROUP E.I.R.L. | 01/12/2019 | 1830050013111 |
| 20464265504 | FERROSALT S.A. | 01/02/2022 | 0110050003144 |
| 20552250959 | FERROSERVICE S.A.C. | 01/02/2017 | 0230050177464 |
| 20100021251 | FERROSTAAL PERU S.A.C. EN LIQUIDACION | 01/02/2022 | 0230050311115 |
| 20432347142 | FERROVIAS CENTRAL ANDINA S.A. | 01/03/2016 | 0110050001209 |
| 20600285760 | FERSAN PERU S.A.C. | 01/02/2022 | 0230050315722 |
| 20542427940 | FERSOL H&B SOCIEDAD COMERCIAL DE RESPONSABILIDAD LIMITADA | 01/12/2019 | 1930050007071 |