The PSDAS adopts the World Trade Organization's classification of professional services, and supplements it with the Hong Kong Trade Development Council's classification to take account of local circumstances. Professional service sectors eligible for funding are :

(i) Accounting-related services

• Accounting, including auditing, book-keeping and tax services

(ii) Legal services

• Legal services, including arbitration and mediation

(iii) Engineering and infrastructure-related services

• Architecture and landscape architecture
• Building and construction
• Engineering services including integrated engineering services
• Planning
• Project Development and Project finance
• Real estate services (including agency services, facilities management and valuation and surveying)
• Surveying

(iv) Medical related services

• Medical and dental services (including Chinese medicine)

(v) Others

• Veterinary services
• Services provided by midwives, nurses, physiotherapists and paramedical personnel
• Design (including graphic, product, interior and fashion design)
• Business consultancy services (including human resource management consultancy services; management consultancy services; information technology consultancy (e.g. system integration services); financial consultancy services (e.g. advising on corporate finance), etc.)
• Waste management and environmental consultancy services