Westpac and ANZ banks have come on board in recent times with JP Morgan understood to be taking a 15% stake.
SDS raised $16 million in December 2003 by placing 30 million shares of the tightly held stock at 55 cents, with founder Fred Moir, who while having sold down recently still has a sizable 44 million shares.
The move increased the company's issued capital by 52.3%, and lifted its market capitalisation to $48 million.
It also recently announced a 60% lift in revenues for the half year period, earning $41.5 million.
