- CHENKEM
- Chenmark Traders
- Chennai Airport
- Chennai Brushworks
- CHENNAI CARE SERVICES PRIVATE LIMITED
- Chennai Chloro System
- Chennai Engineering / Vikaline Marine
- chennai ford
- Chennai Industrial Products
- chennai metropolitan development authority
- Chennai Petroleum Corp. Ltd
- Chennai Petroleum Corporation Limited (CPCL)
- Chennai Port Trust
- CHENNAI PORT TRUST.
- CHENNAI ROOFINGS PVT LTD
- CHENNAI SCIENTIFIC TRADERS
- Cherian Varkey Construction Company Private Limited
- Chettainad Ship Management Services Pvt. Ltd.
- Chettinad Builders Pvt Ltd
- Chettinad International Coal Terminal Pvt Ltd
- Chettinad Property Developers P Ltd
- Chettinad Ship Management Services
- CHHEDA INDUSTRIES
- CHIDAMBARAM SHIPCARE PVT LTD
- Chidambaram Shipcare Pvt Ltd, Chennai
- Chin Vin Lubricants
- Chinnaiah Tinkering & Painting Workshop
- Choco Nuts
- CHOICE ELECTRICALS
- Chola Aqua Technology & Services
- Choudary Technical ship Services
- Choudary Technical ship Services Pvt Ltd
- CHOWGULE BROTHERS PRIVATE LIMITED
- Chowgule Brother Pvt.Ltd
- CHRYSO India Private Limited
- Chukkala Enterprises
- CIJ Jetinks Industry
- CITICHEM ENGINEERING PVT LTD
- City Car Care, Chennai
- Civichem Applications private limited
- Ckbpreci Engineering Private Limited
- CLASSIC ENGINEERING PLASTICS
- Classic Wintronics
- Clean Air Systems, Chennai
- Clean Care Services
- Clean India
- CMA CGM INDIA PVT LTD (Chennai)
- Coast Line Shipping Pvt Ltd / Seatrans Shipping Ltd
- Coastal Shipping links india pvt.ltd.
- Coastal Steels
- Cochin Marine Suppliers
- Cochin Shipyard Ltd
- Cochin Shipyard Ltd.
- COCHINMARINE ENGINEERING
- CODA TECHNOLOGY SOLUTIONS PVT LTD
- Cold Point Pvt Ltd
- Commercial Enterprises
- COMMERCIAL ESTABLISHMENT
- COMPLIET SHIP STORES SUPPLIER
- Concorde Motors India Limited
- Conduit Solutions Technologies LLP
- CONPACMIX PVT LTD
- CONQUE
- Constance Indichrom Private Limited
- Consul Neowatt Power Solution Pvt Ltd
- CONSYS Technology Services
- CONT FREIGHT SHIPPING AGENCY
- Control Techniques India Pvt. Ltd.
- Copper Chimney Restaurant
- Cordite Factory Aruvankadu
- CORI Engineers Pvt. Ltd.
- Coromandel International Limited
- Cousins Kitchen Restaurant
- Covenant Facility Management Services
- CP SCIENTIFIC
- CRAYONS ADVERTISING LTD.
- Crescent Engineering Consultants
- Crest Homes
- Crimsun Organics Pvt Ltd
- Cristal Aqua Systems
- Crown Lubricants
- Crse Exports
- CRV Asian Specific
- CRYSTAL LINK EXIMPORT
- CSAV Group Agencies India Pvt Ltd
- Csk Tube Enterprises P Ltd
- CSK Tube Enterprises Pvt Ltd
- CSN Marine Solution
- Cutis Pro
- CVR Labs Private Limited
- CYBELE INDUSTRIES LTD
- D R Metal
- D R Petro Products
- Daily Fresh
- Daimler India Commercial Vehicles Pvt Ltd
- Dakshin Constructions Pvt. Ltd.
- Dakshinz Enterprises
- Dalmia Cement
- Danalakshmi Paper Mills Pvt Ltd
- Dani Aviation Pvt Ltd