In the conditions of general instability, information about a company at first hand can be useful - from those people who work in it or have worked before.
If you know for sure about the company, who among the friends in it was / is - no problem. However, if the circle of your acquaintances is under a hundred or more, and the range of interests is wide, you don’t remember the work of all your contacts.
This is where the “search for people at the place of work” feature would be useful. However, it is not. ')
There is something similar on Moykrug - but for the first round only “quick search” works, it does not take into account data on past works. You can use the usual search - but there is something incomprehensible with relevance, people of varying degrees of acquaintance are shuffled in the search, which is not very convenient.
In Odnoklassniki, the people are most of all and most of all would be useful (where someone from Moikrug works - I guess about them, about classmates, etc. I know less) - but it’s not surprising that this is not the case.
Well, in Vkontakte there is generally no focus on work. They are still learning how to;)