In our former dealflow tool it was possible to import lists of multiple companies into the dealflow list at once. This was possible through Excel or csv.
How did this work? You had a sheet with several columns: company name, website, country --> you then assigned those columns to their respective matches in the tool --> and the tool was then able to export all the data correctly.
This would really speed up adding certain groups of companies, such as event leads or accelerator batches.