Agency is a business or organization established to provide a particular service, typically one that involves arranging transactions between two other parties.
The term "agency" can also refer to:
1. A government department responsible for a specific area of administration
2. The capacity of individuals to act independently and make their own free choices
3. In law, a relationship in which one party (the agent) is authorized to act on behalf of another (the principal)
4. In marketing, an advertising agency