Where's Office F25, R27/Atlas
Harwell Campus ? https://www.orbitfab.com/contact/

internet_access est plus commun entretemps
https://taginfo.openstreetmap.org/keys/?key=internet_access

Couldn't find this address :
7F-8, No. 1, Sec. 3, Gongdao 5th Rd., Hsinchu 300, Taiwan https://tronfuture.com/contact

https://tronfuture.com/solutions/communications --> https://taginfo.openstreetmap.org/tags/aerospace%3Aproduct=satellite

Spaceport infrastructure is missing aeroway=spaceport

https://www.space-propulsion.com/contact/location-bre.html

https://www.ariane.group/de/uber-uns/unsere-wichtigsten-standorte

house number is missing

This "CNES" ? https://www.wikidata.org/wiki/Q48756

https://taginfo.openstreetmap.org/search?q=short_name%3DCNES

A similar case :
osm.wiki/Tag%3Ashop%3Dstreet_vendor

Example to tag the times it's there :
https://projets.pavie.info/yohours/?oh=May-Sep%2008:00-22:00

Access ist public, aber vermutlich Selbstbedienung ? Evtl. wäre das passender :
amenity=canteen

Was mapped as a "spaceport", unclear what it is in fact