affiliate

/əˈfɪliˌeɪt/
/əˈfɪliət/

transitive verb

Officially attach or connect (a subsidiary group or a person) to an organization.

the college is affiliated with the University of Wisconsin

associate with,be in league with,unite with,combine with,join with,join up with,join forces with,ally with,form an alliance with,align with,amalgamate with,merge with,coalesce with,federate with,confederate with,form a federation with,form a confederation with,team up with,band together with,cooperate with

noun

A person or organization officially attached to a larger body.

the company established links with British affiliates

office,bureau,agency