Revenue for the six months to December was up 58% to $A332.9 million, while net profit after tax increased 79% to $23.3 million.

Including a gain arising from the acquisition of the HomeGround Gladstone accommodation village in Queensland, NPAT was $44.1 million.

During the half, Decmil secured $150 million in new contracts, including $60 million of work for Rio Tinto.

Net assets increased to $257.7 million, while cash on hand at the end of the period was $96.3 million.

The company will pay an interim fully franked dividend of 4c per share.

Decmil again reiterated that the current half was unlikely to be as strong, due to the timing of project awards.

However, it has submitted tenders worth $1.2 billion that are expected to be awarded in the coming months.

Decmil chief executive officer Scott Criddle said the company’s diversification had shielded it from a slowdown in the economy.

Diversification would continue through organic growth and acquisitions.

“We are focused on maintaining high cash flow production, which will allow our diversification strategy to be executed from the company’s internal capital resources,” Criddle said.

“While our core business is unchanged, we are certainly examining a number of opportunities within the maintenance and infrastructure sectors which will deliver recurring revenue streams to supplement the project work that has been our staple revenue source since the company was established.”

Decmil shares gained 5c to $2.45.