1. A fixed, established location where an organization, institution, or entity maintains its main office or central operations on a long-term or indefinite basis.
The United Nations has its permanent headquarters in New York.
As Nações Unidas têm sua sede permanente em Nova York.
2. The official registered address of a company, organization, or institution for legal and administrative purposes.
The company established its permanent headquarters in São Paulo.
A empresa estabeleceu sua sede permanente em São Paulo.