This is a great request / idea Nick Sproul, and something we are exploring as we continue to expand our product. This has been +1 in the backlog as well. We hope to have the ability to import as well as search by former company shortly.

In the interim, this is currently a feature available within the Sales Navigator + Seamless.AI Chrome Extension experience, if you have access to Sales Nav at this time. You may well be aware of this, but wanted to share that option as a potential solution while we explore adding this functionality to Seamless.AI's native search.