Datalex’s corporate broker, Goodbody, has said the firm will need to raise between $25 and $35 million in equity this year.  This year and last, Datalex has been aided by its 29.8 per cent owner Dermot Desmond. The financier issued the firm a credit line of up to $21.3 million to help it through a difficult two year period. The firm currently owes Desmond $12.4 million, plus interest of $1.5 million to date, plus a financing fee.  The loans kept the company going, but they weren’t cheap. The interest on them is 10 per cent. And after a refinancing in November…