Every company I've worked for still exists and many will clearly continue for many many years (some previous employers were Universities). Some previous roles

Every company I've worked for still exists and many will clearly continue for many many years (some previous employers were Universities). Some previous roles I was involved in solving "this could end the business" situations, so I do thank you for making me realise that I laid bricks (or more importantly; helped detect and repair serious foundation problems) for my employers.