I apologize upfront as this is not an Unemployment posting. But, it is an example on how aerospace companies change hands "frequently"
The Danbury, CT Optics facility has changed hands several times:
Perkin-Elmer
"HuRayGoodColin"
Hughes
Raytheon
Goodrich
Collins Aerospace (UTC)
RayTech
Amergint (currently)
Employees must have an identity crisis there.