Qsi Holding

a media technology company in hong kong which has emerged as the result of a joint venture between querendo limited and si atm. querendo limited is originally a dutch company which was founded in amsterdam (the netherlands) in 1999 and which has moved its headquarters to hong kong as of 2007 to better support its operations in the asia/pacific region. the company’s core business is to develop media solutions which can be integrated into information systems and on the internet. within the joint venture company, querendo is mainly responsible for customer relations and advertising sales. the team consists of a mix of engineers and media staff that support various local partners around the world. si atm is a swedish company based in stockholm. since its incorporation in 1981 the company has focused on activities within the air traffic management (atm) field. with a product range of air traffic control (atc) simulators to full-scale atc systems, si atm have several reference case installat