Engineering solutions company specialising in integrated precision engineering and industrial computing solutions. The company offers a wide range of engineering services, mainly to customers who are manufacturers and original design manufacturers of products and equipment that have specialised requirements in precision controls. We provide the full spectrum of engineering services from conceptualisation, design & development to prototyping, production, sales & marketing and after sales engineering support. ISDN was listed on the Mainboard of the SGX-ST on 24 November 2005 and subsequently listed on the Main Board of SEHK on 12 January 2017