- Established in 1985. - Family tea company Dilmah is founded on its Founder’s passion for tea, its Taste, Goodness & ethical Purpose. - ISO 9001:2015, FSSC 22000, ISO 14001:2015, BRCGS, Rainforest Alliance, EU Organic, USDA Organic, JAS Organic, SMETA, and ISO/IEC 17025:2017 certified.