(thought that would get your attention)
When talking about past clients, especially those that have been taken over or merger do you mention the the name they were or the name they are now?
For example I worked with CSC, do I say CSC or now DXC?
I usually give both names, so in your example I would (on the CV) put something like "CSC (now part of DXC)"
I don't put company names on my profiles, just the industry I've worked in. When actually at the interview then I will mention the company if required
How come?

How come?