- Summith Engineering (Pvt) Ltd
- Address:No. 545, Colombo Road
- Malsiri Lanka Pvt Ltd
- Address:
- Sakura Graphite Pvt. Ltd.
- Address:
- Dahaslanka
- Address:245, Gannoruwa
- Quintet Solutions (Pvt) Ltd
- Address:Colombo
- K. K. Serendib
- Address:17/2,3rd Lane Ambillawatte Rd Boralasgamuwa
- Bogala Graphite
- Address:
- cinemax
- Address:kirullapone
- K & C Holdings (Pvt) Ltd
- Address:No-2 B, Girton School Lane
- Jaques & Sullivan[Pvt] Limited
- Address:'Pavan Sevena' Nawala Road
- Aurum Commercial Company (pvt) Ltd
- Address:Thelawala Road
- R.S. Products Ltd.
- Address:Wijekoon House
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