- Siemens Aktiengesellschaft Oesterreich (Austria) – Power Sector Development Transmission Project
- Lakdhanavi Heavy Engineering Private Limited – CCPP – Muthurajawela
- Miki Rubber Industries Private Limited – India
- Airport and Aviation Services Sri Lanka Limited.
- Ceylon Electricity Board.
- Board of Investment of Sri Lanka
- Richard Pieris Natural Foams Private Ltd.
- Richard Pieris Tyre Private Ltd.
- Royal Porcelain Private Ltd.
- Merbok MDF Lanka Private Ltd.
- Associated Motorways Private Ltd.
- Unilever Sri Lanka Private Ltd.
- Unilever Lipton Ceylon Limited
- Zyrex Power Company Private Ltd.
- Holcim Lanka Ltd.
- Weehena Agro Products Private Ltd.
- Luckyland Biscuits Private Ltd.
- Hanwella Rubber Products Private Ltd.
- Associated Ceat Private Ltd.
- Rivira Media Corporation Private Ltd.
- Nestle Lanka Private Ltd.
- Ceylon Agro Industries Ltd Private Ltd.
- Regnis Lanka Private Ltd.
- Chemical Industries Colombo Private Ltd.
- Haycarb Group Private Ltd.
- Suntel Lanka Private Ltd.
- Ericson Telecommunications Lanka Private Ltd.
- Leighton Contractors (Singapore) Private Ltd.
- Diana Biscuit manufactories Private Ltd.
- Trelleborg Lanka Private Ltd.
- Noritake Lanka Porcelain Private Ltd.
- Hands International Private Ltd.
- Brandix Group of companies.
- ATG Lanka Private Limited
- Singer Sri Lanka Private Ltd.
- IGTL Solutions Lanka Private Limited.
- Rocell Bath ware Private Limited.
- Marangoni Industrial Tyres Lanka Ltd.
- International Broadcasting Bureau.
- University of Peradeniya.
- Perfetti Van Melle Lanka Private Ltd.
- Fonterra Brands Lanka Private Ltd.
- Ansell Lanka Private Ltd.
- INOAC Polymer Lanka Private Ltd.
- Orel Techno Park Private Ltd.
- Sri Lanka Ayurvedic Drugs Coperation.
- State Engineering Coperation.
- Sam ku Lanka Private Ltd. ( Keels Water front intergrated resot project)
- KALPATARU Power Transmission Ltd Gujarat, India
- KEC International Ltd Mumbai India
