If referring to a business, the verb should be singular even if the business name appears to be plural.
Capricorn Cruises has offices in several locations.
It follows that businesses should always be referred to as ‘it’ rather than ‘they’.
Capricorn Cruises has offices in several locations. It offers cruises to Aruba, Jamaica and Kokomo. Staff can assist with planning tours.
Retain ampersands in proper nouns when used by the business, organisation or institution named.