- Arts, entertainment and recreation
- Activities of other membership organizations n.e.c.
- Animal and pet stores
- American restaurants
- Activities of households as employers of domestic personnel
- Activities of membership organizations
- Activities of business and employers membership organizations
- Antiques
- Advertising
- Art galleries
- Architectural and engineering activities and related technical consultancy
- Arcades
- Activities of political organizations
- Activities of amusement parks and theme parks
- Architects
- Accounting, bookkeeping and auditing activities; tax consultancy
- Atm's
- African restaurants
- Activities of sports clubs
- Apartments