- Aliya Corporation- Green Guard Certificate
- Shri. N.V.V.S. Shastry, Cms/Cmt Lab/Emu/Tbm- Accredited Professional (AP) Certificate
- Smt. M. Sumitha, JE/MINI STORE/EMU/TBM-Accredited Professional (AP) Certificate
- Miss. J. Swathi, JE/WORKS/EMU/TBM- Accredited Professional (AP) Certificate
- Smt. J. Rieshi Priya, Asst/Emu/Tbm- Accredited Professional (AP) Certificate
- Chrisel Technolab Private Limited- ISO/IEC 20000-1:2018 Certificate
- Diesel Loco Shed- ISO 50001:2018 Certificate
- SKM Industries- ISO 3834-1:2021 Certificate
- S.I. Enterprise- ISO 9001:2015 Certificate
- Tank Wagon Depot, Karachiya- ISO 3834-1:2021 Certificate
- YMP Enterprises- Organic Fertilizer Certificate
- Five-S Workplace Management System Certificate
- Coaching Complex Wadi Bunder Central Railway- ISO 9001:2015 Certificate
- Shri. K. Ravindra Prasad, SSE/Run/Emutbm Southern Railway- Accredited Professional (AP) Certificate
- Shri. S. Ashok Kumar, SSE(Cta)/TRS/TBM Southern Railway- Accredited Professional (AP) Certificate
- Shri. Kunjilal Meena, JE/QA/EMU/TBM Southern Railway- Accredited Professional (AP) Certificate
- Smt. N. Revathy, Sr. Tech/EMu/TBM Southern Railway- Accredited Professional (AP) Certificate
- Shri. J.R. Krishnamurthy, SSE/GEN/EMU/TBm Southern Railway- Accredited Professional (AP) Certificate
- Smt. S. Nithya, SSE/INSP/EMU/TBM Southern Railway- Accredited Professional (AP) Certificate
- Shri. P. Viswanathan, SSE/M2/EMU/TBM Southern Railway- Accredited Professional (AP) Certificate
- Shri. R. Jayakumar, CMS/CMT LAB/EMU/TBM Southern Railway- Accredited Professional (AP) Certificate
- Shri. Makesh Kumar, JE/M3/EMU/TBM Southern Railway- Accredited Professional (AP) Certificate
- Shri. C. Elumalai, SSE/QA/EMU/TBM Southern Railway- Accredited Professional (AP) Certificate
- Shri. A. Dhananjayan, SSE/MW/EMU/TBM Southern Railway- Accredited Professional (AP) Certificate
- Shri. G. Senthil Kumar, SSE/E3AUX/EMU/TBM Southern Railway- Accredited Professional (AP) Certificate
- Shri. V. Prakash, SSE/M1/EMU/TBM Southern Railway- Accredited Professional (AP) Certificate
- Shri. A. Arul Anand, JE/E8/EMU/TBM Southern Railway- Accredited Professional (AP) Certificate
- Smt. P. Jayanthi, SSE/E3TM/EMU/TBM Southern Railway- Accredited Professional (AP) Certificate
- Fr Pet International Company Limited- ISO 9001:2015 Certificate
- Sinha Electrochemical Plant- IATF 16949:2016 Certificate
- Carriage Repair Workshop- ISO 3834-2:2021 Certificate
- Central Workshop- ISO 3834-2:2021 Certificate
- Decent Brass- ISO 9001:2015 Certificate
- Ashvin & Co.- ISO 27001:2022 Certificate
- Xana Technologies India Private Limited- ISO 27001:2022 Certificate
- Energetic Overseas- Material Safety Data Sheet Certificate
- Dadarkar Arts And Creative Services- Material Safety Data Sheet Certificate
- Earth 365- Material Safety Data Sheet Certificate
- Smartech Battery- Material Safety Data Sheet Certificate
- Thaswikha Exports And Imports- Material Safety Data Sheet Certificate
