Avion Access Co. Ltd. major clients include:

• Architectural Services Department (ASD)
• Chevalier Property Management Limited
• Chinese University of Hong Kong
• China State Construction International Holdings Limited
• Electrical & Mechanical Services Department (EMSD)
• Gammon Construction Limited
• Hong Kong Baptist University
• Hutchison Whampoa Property Limited
• Jones Lang LaSalle (JLL)
• MRT Corporation Limited
• Ngong Ping 360
• Ocean Park Hong Kong
• Paul Y Engineering Group Limited
• Radio Television Hong Kong (RTHK)
• Swire Properties Limited
• Sun Hung Kai Properties Limited
• Synergis Management Services Limited
• Television Broadcasts Limited (TVB)
• The Royal Hong Kong Golf Club
• Towngas Hong Kong
• YMCA of Hong Kong