| 2001 | KANSAS LABORATORIES PVT LTD - U27109WB1986PTC041462 |
| 2002 | KAPHILA SPONGE & ISPAT PRIVATE LIMITED - U27109WB2004PTC100911 |
| 2003 | KARAN SMELTERS PRIVATE LIMITED - U27100WB2007PTC116852 |
| 2004 | KARMA ELECTROCAST PRIVATE LIMITED - U27310WB2004PTC098804 |
| 2005 | KARMA METAL PRIVATE LIMITED - U27310WB2010PTC154908 |
| 2006 | KARMA RE-ROLLERS PRIVATE LIMITED - U27100WB2008PTC127980 |
| 2007 | KARTAVYA MERCANTILE PRIVATE LIMITED - U27209WB1996PTC082310 |
| 2008 | KARUNAMOYEE IRON & STEEL CASTING PRIVATE LIMITED - U27100WB2008PTC126602 |
| 2009 | KARUNAMOYEE ISPAT PRIVATE LIMITED - U27310WB2012PTC185036 |
| 2010 | KARUNAMOYEE METALS PRIVATE LIMITED - U27104WB1999PTC089296 |
| 2011 | KASA COUNTER TRADE PVT. LTD. - U27109WB1994PTC063559 |
| 2012 | KASA METAL & STEEL PVT LTD - U27109WB1995PTC072696 |
| 2013 | KASHANIK SHEET METAL PRIVATE LIMITED - U27100WB2008PTC125830 |
| 2014 | KATHADIA TECHNO-ENGINEERING PVT LTD - U27101WB1983PTC036676 |
| 2015 | KATHUA STEEL WORKS PVT LTD - U27101WB1979PTC032142 |
| 2016 | KATIA STEELS PRIVATE LIMITED. - U27104WB1995PTC071281 |
| 2017 | KATLIA STEEL INDUSTRIES PVT LTD - U27109WB1984PTC038214 |
| 2018 | KATYANI FERRO ALLOYS PRIVATE LIMITED - U27109WB2005PTC105864 |
| 2019 | KAUNTIA CASTINGS LTD. - U27101WB1996PLC080052 |
| 2020 | KAUSTAV JEWELLERS PRIVATE LIMITED - U27205WB2007PTC115616 |
| 2021 | KAVERI ISPAT & HOLDINGS PVT. LTD. - U27106WB1993PTC059746 |
| 2022 | KAVERI METALS AND MINERALS PVT LTD - U27109WB1982PTC034562 |
| 2023 | KAVISH INFRASTRUCTURE PRIVATE LIMITED - U27100WB2007PTC115678 |
| 2024 | KAVITA MINERALS PRIVATE LIMITED - U27101WB1997PTC083220 |
| 2025 | KAY BEE FERRO- ALLOYS PRIVATE LIMITED - U27100WB2008PTC129320 |