According to sources, Switzerland-based alternative asset manager Partners Group will hold final close for its newest direct infrastructure fund later this year.

SEC filings show that the firm has not officially stated a target or registered any capital for its Partners Group Direct Infrastructure 2015 so far.

However, we understand that there has been a first closing with commitments from Partners Group’s typical LP base, including global pension funds, foreign wealth funds and large endowments.

The current vehicle is Partners Group’s second direct infrastructure fund. The predecessor vehicle, Partners Group Direct Infrastructure 2011, was launched six years ago.

In January 2014, Partners Group announced that its Partners Group Global Infrastructure 2012 program, had closed at €1 billion, which made it the largest dedicated infrastructure vehicle ever raised by the firm. The fund was the firm’s second such fund and was twice the size of the debut vehicle which closed on €500 million in 2009.