The firm had just $1.9 million of cash and cash equivalents on hand at the end of December, compared with $3.6 million a year earlier.
Lim said other NZX-listed tech companies - including Xero, Pacific Edge and Diligent - carried out capital raisings to finance growth while Wellington Drive seemed to raise cash to fund its survival.
"You certainly don't want to be raising money at ever lower [share] prices - it's not a good sign," Lim said.
Allen said it was not helpful to talk about what had gone wrong at Wellington Drive in the past.
"I'd really like to focus on this year being the year we re-launch Wellington."
Since Allen took the helm in 2011 the company has embarked on a turnaround strategy that has included exiting its ventilation business, cutting supply chain costs and reducing inventory.
The firm posted a loss of $6.3 million for the year to December 31, 2012, which was a big improvement on the year before's $14.5 million loss.
The company narrowed its annual earnings before interest, tax, depreciation and amortisation (ebitda) loss to $4.1 million from $12 million in the previous year, while gross margins increased from 5 per cent to 14 per cent.
"Our operating performance is as good as it's ever been - probably the best it's ever been - and we're adding customers," Allen said.
The company is aiming to achieve positive ebitda in 2014, but Allen did not want to attempt to forecast when the business might turn its maiden profit.
Allen, who spends most of the year travelling on business, said he was having "a ball" running the firm, which he said he joined because there was "a clear case for a turnaround".
Wellington Drive shares, which had shed around 36 per cent over the past year, closed at 14c last night.