The phrase can mean different things in different contexts. In the context I'm guessing you mean it is another country's space agency. NASA is the US space agency. ESA is the European Space Agency, JSA the Japanese space agency, etc. ESA and JSA would be NASA counterparts.
it is out in space and in the space agency building
NASA is an example of a government agency, specifically a federal agency under the United States government responsible for the nation's civilian space program and for aeronautics and aerospace research.
The European Space Agency has Ireland as a member.
European Space Agency was created in 1975.
Canadian Space Agency was created in 1989.
Bulgarian Space Agency was created in 1990.
Austrian Space Agency was created in 1972.
Romanian Space Agency was created in 1991.
Brazilian Space Agency was created in 1994.
Italian Space Agency was created in 1988.
Israel Space Agency was created in 1983.