| 601 | HI-VAC INDIA PVT LTD - U31506WB1978PTC031672 |
| 602 | HICONE INSTELTECH PVT LTD - U31909WB1984PTC037075 |
| 603 | HIGHTECH HEATING ELEMENTS PRIVATE LIMITE D - U31909WB1998PTC088265 |
| 604 | HIGHTENSION ELECTRICAL EQUIPMENTS PRIVATE LIMITED - U31401WB2009PTC135024 |
| 605 | HIGHTENSION SWITCHGEARS PVT LTD. - U31109WB1989PTC047081 |
| 606 | HIGHTRON ELECTRONICS PRIVATE LIMITED - U31900WB2017PTC222318 |
| 607 | HIMADRI E-CARBON LIMITED - U31402WB2005PLC105269 |
| 608 | HIMADRI ELECTRICALS PVT LTD - U31909WB1982PTC034762 |
| 609 | HIMALAYAN ELECTRONICS CENTRE PRIVATE LIMITED - U31900WB2017PTC221518 |
| 610 | HIND ELECTRICALS & GENERAL INDUSTRIES LTD - U31909WB1958PLC023885 |
| 611 | HIND ELECTRO SYSTEM PVT LTD - U31103WB1987PTC042137 |
| 612 | HIND ELECTROTECH PRIVATE LIMITED - U31200WB1999PTC089346 |
| 613 | HIND GALVANIZING & ENGINEENING CO LTD - U31901WB1959PLC024118 |
| 614 | HIND PETROFILAMENT PRIVATE LIMITED - U31501WB1990PTC086703 |
| 615 | HINDUSTAN CABLES LTD - L31300WB1952GOI020560 |
| 616 | HINDUSTAN LIGHTINGS PRIVATE LIMITED - U31506WB2005PTC102340 |
| 617 | HINDUSTHAN LAMPS & FLUOE SCENT TUBES LTD - U31503WB1955PLC022091 |
| 618 | HIRDOOMAL LILARAM & CO PVT LTD - U31903WB1958PTC023852 |
| 619 | HOHM INDIA AUTO-ELECTRICAL SYSTEMS PRIVA TE LIMITED - U31901WB2000PTC090961 |
| 620 | HOLITE LAMPS PVT LTD - U31504WB1976PTC030773 |
| 621 | HOMAC TRANSFORMER AND ELECTRICAL PRIVATE LIMITED - U31904WB2016PTC218518 |
| 622 | HOOGHLY CABLES PRIVATE LIMITED - U31300WB1997PTC085625 |
| 623 | HOWRAH WIRE NETTING CONCERN PRIVATE LIMITED - U31300WB1997PTC083974 |
| 624 | HPL COGENERATION LIMITED - U31101WB1997PLC083434 |
| 625 | HYDROTEC SOLUTIONS PRIVATE LIMITED - U31908WB2014PTC200222 |