affiliated
v.v. officially connected to a larger group or organization. You use this to describe a smaller company or club that is part of a bigger network.
v. officially attached or connected to an organization, institution, or parent body. Often used to describe a relationship where the smaller entity maintains some independence while following the larger group's rules.
The local hospital is affiliated with a major university.
Many smaller research labs are affiliated with the national science foundation to gain access to better funding and equipment.
While the magazine maintains editorial independence, it remains closely affiliated with the political party that founded it in the early twentieth century.
Typically used with the preposition 'with'. While it can function as the past participle of the verb 'affiliate', it is most frequently encountered as a predicative adjective.
The club is affiliated to the league.The club is affiliated with the league.In modern standard English, 'affiliated' almost always takes the preposition 'with' rather than 'to'.