| 526 | FABMASS MACHINES & ROTATIVES PRIVATE LIMITED - U27209TN1983PTC010428 |
| 527 | FERNHILL MULTIPLE INDUSTRIES PRIVATE LIMITED - U27107TN2011PTC083136 |
| 528 | FERNOF METALS PRIVATE LIMITED - U27201TN2000PTC044358 |
| 529 | FERRODEAL PVT LTD - U27104TN1988PTC015709 |
| 530 | FERRODYNAMICS PRIVATE LIMITED - U27100TZ2016PTC028038 |
| 531 | FERROFAB (INDIA) PRIVATE LIMITED - U27101TN1993PTC024988 |
| 532 | FERROMARK PVT LTD. - U27104TN1989PTC016843 |
| 533 | FI CASTINGS LIMITED - U27310TZ1996PLC007485 |
| 534 | FIDELITY METACHEM PRIVATE LIMITED - U27106TN2002PTC049011 |
| 535 | FIMEX METAL REFINERS PRIVATE LIMITED - U27209TN1996PTC035143 |
| 536 | FIRST SUN POWER PVT LTD - U27209TN1983PTC010547 |
| 537 | FLEXIBLE MACHINING CENTRE PRIVATE LIMITED - U27200TN1985PTC012255 |
| 538 | FLEXICAN DURGA FAB PRIVATE LIMITED - U27103TN2013PTC090869 |
| 539 | FLEXIFIT ENGINEERING INDUSTRY PRIVATE LIMITED - U27109TN2005PTC056257 |
| 540 | FLOWCON ENGINEER INDIA PRIVATE LIMITED - U27310TZ2007PTC013443 |
| 541 | FLOWCON STEEL PRIVATE LIMITED - U27310TZ1997PTC008033 |
| 542 | FLUID THERM TECHNOLOGY PRIVATE LIMITED - U27209TN1985PTC000659 |
| 543 | FLUXCORED ALLOYS PRIVATE LIMITED - U27104TN1998PTC040393 |
| 544 | FONS FAB INDIA PRIVATE LIMITED - U27102TZ1993PTC004260 |
| 545 | FORETEK ENGINEERS PRIVATE LIMITED - U27209TN1983PTC010263 |
| 546 | FORGEMACH PVT LTD - U27209TN1981PTC009148 |
| 547 | FORTUNE METALS LIMITED - U27201TN1994PLC029366 |
| 548 | FORTUNE STEELS PVT LTD - U27104TN1976PTC007240 |
| 549 | FORZA CASTING PRIVATE LIMITED - U27104TZ2010PTC016097 |
| 550 | FOUNTAIN EXPORTS PRIVATE LIMITED - U27310TZ1991PTC003417 |