"The two primary reasons for this shortfall are the lower than budgeted project work levels in the quarter and a larger than budgeted level of expenditure on materials and consumables."
InfraCore chief executive Tim Hammond said the company had "some success" in picking up work, but not as much as it had planned.
There had been no staff made redundant as of yet, as there had been enough vacancies to move staff into other roles as required, he said.
It was "still possible we might end up with a shortfall of work, but I can't see that in the immediate future".
Hammond said the company was finding about one in every four tenders it put forward was successful. It was hoped that would be increased to one in every three tenders, he said.
There was a further $2.6 million of work the company was "actively chasing", the report states.
That would likely be for the next financial year.