The Private Capital Group has made two offshore infrastructure transactions in the United States.
Backed by 14 industry superannuation funds, the firm has struck a joint venture with Texan construction company Zachary Texas.
Under the deal, the firm would invest in freeways and transport corridors, Private Capital chair Bob Lette said.
Private Capital has also formed a joint venture with JPMorgan to invest in infrastructure firm Southwest Generation, which operates power generation plants in California, Colorado, Nevada and New Mexico.
The investment value of Private Group's infrastructure fund is now $514 million, with $71.6 million available for further investments.
Investors in the fund include BUSSQ, QIEC Super, Club Super, Catholic Super, City Super, Sunsuper and SpecQ.
The group is also eyeing opportunities following the Queensland government's decision to sell off a number of infrastructure assets, including toll roads, ports and motorways.
"There will be some significant opportunities in Queensland once these assets are up for sale and we will definitely be looking at them," Lette said.
The Private Capital Group was set up in 1997 to provide industry superannuation funds in Queensland with local investment opportunities.
Since then, the firm has taken a national as well as international focus.