agency
US /ˈeɪ.dʒən.si/
UK /ˈeɪ.dʒən.si/

1.
a business or organization providing a particular service on behalf of another business, person, or group
:
•
She works for a travel agency.
•
The advertising agency created a new campaign.
2.
government department or body
:
•
The FBI is a federal agency.
•
The environmental protection agency monitors pollution levels.