- S R Biochemicals
- S R Designs
- S R M Industrial Suppliers
- S Ramasubban & Co.
- S S Facility Management Services, Chennai
- S S Square Property Developers
- S V Chem Intermediates Pvt Ltd
- S V Civcons P Ltd
- S V Engineers
- S Vaidya & Co
- S&G Petro Products
- S. ABBAS & CO, CHENNAI
- s. g. j. motors pvt. ltd
- S. S. Marine Services (Chen)
- S.A.K Impex Shipping Services
- S.B Homes
- S.B.TEKNIK
- S.h. Industrial Needs
- S.P.M Medical Mart
- S.S.D. Oil Mills Company Limited
- SAB LABS
- Sabari Ganesh Traders
- Sabari Ganesh Traders
- SABARI TEX CHEM
- Sabesan Technical Services Pvt Ltd
- Sabhari Foundation
- SAC Engine Components Private Limited
- Saf Lubricants
- Safe Green Impex India Private Limited
- Safe Industrial Marine Stores
- Sahara India Impex
- Saharsh Tank Clean Services
- Sai baba Green Energy Pvt Ltd
- Sai Bharath Builders
- Sai Consultancies Incorporation
- Sai Empresa
- Sai IAS coaching center
- Sai Impex Chennai
- Sai Karthiga Builders
- Sai Kripa Associates
- Sai Nanotech Biorganics
- Sai Sheet Stampings Pvt. Ltd.
- Sai shipping co. pvt. ltd.
- Sai Shrishti Homes
- Sai Yasika Biochem
- Saidhani Marine Marketing Enterprises
- Saipem India Projects Limited
- Sairam Boiler Engineers Private Limited
- Sairam Motors
- Sakthi Constructions
- Sakthi Engg.
- Sakthi Industries
- Salem Stainless Steel Suppliers Pvt. Ltd.
- Salem Steel & Alloys
- SALEM STEEL TRADING CO
- Salis and Imprimo India Pvt Ltd
- Sam Associate
- Sam Hydromacs Private Limited
- SAMAY TRADING COMPANY
- SAMKRISH
- Samraj Agencies
- Samudera Shipping Line India Pvt.Ltd.
- SAMUDRA SHIP MANAGEMENT PVT LTD.
- Sanjay Homes and Developers Pvt Ltd
- Sanjay Textiles
- Sanjeevi Constructions
- Sanjeevi Constructions
- Sanjeevirayan Automobiles
- SANKAR INDUSTRIAL CARE
- Sanmar Limited
- Sanmar Shipping Ltd.
- Sansel Instruments And Controls
- SARA EARTH MOVERS
- SARA International
- Saranya
- Saraswathi Metal Works (SMW)
- Saravana Auto Tinkering
- Saravana Chem Dyes
- Saravana Engineering Works
- SARAVANA SUCCESS FAB
- Saravanan Steels, Ramapuram
- Sargam Metals Private Limited
- Sarvam Safety Equipments Pvt Ltd
- Sarvayogam Builders
- Sarvin Car Care
- Sathyam Homes
- SB Homes
- SB Industries
- SBA Associates
- SchuF Speciality Valves India Pvt Ltd
- SCREENLAND PRINT INDIA PVT LTD
- SCTIMST Medical College
- SDB International
- SDLINC
- SEA HAWK LINES PVT LTD
- Sea Breeze Logistics Pvt.Ltd
- Sea Con Freight Logistics (Chennai)
- Sea consortium (Tuticorin)
- Sea Diamonds
- Sea God