In Alphabetical Order:

Airport Authority Hong Kong
ALBA Integrated Waste Solutions (Hong Kong) Limited
Alliance Construction Materials Limited
Allied Environmental Consultants Limited
Bank of China (Hong Kong) Limited
Canon Hong Kong Company Limited
Cathay Pacific Catering Services (H.K.) Ltd.
City Bus Ltd. 
CLP Power Hong Kong Limited
Cordis Hong Kong Limited
Discovery Bay Services Management Limited
E. Tech Management (HK) Limited
Fuji Xerox(Hong Kong) Limited
Gammon Construction Ltd.
Harriman Property Management Limited - Chelsea Court
Harriman Property Management Limited - Citi Tower
Harriman Property Management Limited - Gough Hill Residences 
Harriman Property Management Limited - Kadoorie Hill
Harriman Property Management Limited - Kensington Hill
Harriman Property Management Limited - Lexington Hill 
Harriman Property Management Limited - Manulife Tower
Harriman Property Management Limited - On Lee Building
Harriman Property Management Limited - One Bay East
Harriman Property Management Limited - Peninsula East
Harriman Property Management Limited - The Babington
Harriman Property Management Limited - Wheelock House
Hip Hing Construction Co. Ltd
HKT Limited
Hong Kong International Terminals Limited
Hong Lok Yuen Property Management Co. Ltd.
Hong Yip Service Company Limited
Hysan Development Company Limited
K. Wah Construction Materials (Hong Kong) Limited
Kai Shing Management Service Limited-East Point City (Commercial)
Kai Shing Management Services Limited - 12 Shouson Hill Road Management Services Office  
Kai Shing Management Services Limited - Aegean Coast
Kai Shing Management Services Limited - Apec Plaza
Kai Shing Management Services Limited - Beaulieu Peninsula
Kai Shing Management Services Limited - Birchwood Place
Kai Shing Management Services Limited - Blossom Garden
Kai Shing Management Services Limited – Elite Centre
Kai Shing Management Services Limited - Hillsborough Court
Kai Shing Management Services Limited - Kai Tsui Court
Kai Shing Management Services Limited - Kin Sang Commercial Centre
Kai Shing Management Services Limited - Lei On Court
Kai Shing Management Services Limited - New Town Plaza Phase I
Kai Shing Management Services Limited - Panorama Garden Management Office
Kai Shing Management Services Limited - Peridot Court
Kai Shing Management Services Limited - Siu Lun Court
Kai Shing Management Services Limited - Sun Tuen Mun Centre
Kai Shing Management Services Limited - Tai Po Mega Mall
Kai Shing Management Services Limited - Uptown Plaza
Kai Shing Management Services Limited- Celeste Court
Kai Shing Management Services Limited- Grand Century Place
Kai Shing Management Services Limited- Landmark North
Kai Shing Management Services Limited- Majestic Court
Kai Shing Management Services Limited- One Harbour Square
Kai Shing Management Services Limited- Tsuen King Garden Management Services Office
Kai Shing Management Services Limited-East Point City(Residential)
Kai Shing Management Services Limited-Grand Central Plaza Management Services Office
Kai Shing Management Services Limited-HomeSquare Management Services Office 
Kai Shing Management Services Limited-International Commerce Centre
Kai Shing Management Services Limited-Metroplaza
Kai Shing Management Services Limited-Metropolis Plaza
Kai Shing Management Services Limited-Millennium City 1
Kai Shing Management Services Limited-Millennium City 2
Kai Shing Management Services Limited-Millennium City 3
Kai Shing Management Services Limited-Millennium City 5 & apm
Kai Shing Management Services Limited-Millennium City 6
Kai Shing Management Services Ltd.-New Town Plaza III & New Town Tower
Kerry Properties Limited
Kingfisher Asia Limited
Konica Minolta Business Solutions (HK) Ltd.
Modern Terminals Limited
New World China Land Limited
New World First Bus Services Limited
New World First Ferry Services Limited
NWS Holdings Limited
Ocean Park Hong Kong
PCCW Limited
Perfect Green Supplies Company Limited
Sailing Boat Catering Group Limited 
Siemens Limited
Sino Estates Management Limited - Olympian City
Sino Land Company Limited
Supreme Management Services Limited - The Leighton Hill
Supreme Management Services Limited - Ultima
Supreme Management Services Limited-Shouson Peak Management Services Office
Swire Pacific Limited
Swire Properties Limited
The Chinese University of Hong Kong
The Helena May
The Hong Kong And China Gas Company Limited
The Hong Kong Jockey Club
The Jardine Engineering Corporation Limited
Vibro (H.K.) Ltd.
W3 Corporate Limited
Worldwide Cruise Terminals

Updated as of: 11 April 2018