Paris-based sustainable infrastructure investment firm RGREEN INVEST announced that it has raised nearly €500 million (USD$570 million) at the final close of Infrabridge IV fund, the fourth vintage of its infrastructure debt strategy focused on supporting the energy transition in Europe.

RGREEN INVEST launched its Infrabridge strategies in 2018, providing a range of funds supporting key players driving the energy transition and climate change adaptation through short-term senior debt.

The firm launched Infrabridge IV in 2024, with the Article 9 fund focused on the European lower mid-market, which it said is a market segment that remains underserved by traditional lenders.

According to RGREEN, the new fund more than doubled the size of the prior vintage, and attracted commitments from approximately twenty institutional investors across a broad and diversified investor base, including nearly 70% of participating in the strategy for the first time and 30% of commitments coming from international investors.

Approximately 70% of the fund has already been deployed, and Infrabridge IV is expected to be fully invested by early 2027. The portfolio spans a broad range of sectors, including geothermal energy, biomethane, energy storage, and hybrid solar and wind projects incorporating battery storage, across multiple European markets.

Nicolas Rochon, Founder and CEO of RGREEN INVEST, said:

“The successive closings of INFRAGREEN V and INFRABRIDGE IV mark another important milestone in RGREEN INVEST’s development. They demonstrate our investors’ continued confidence in our ability to support Europe’s energy transition through complementary financing solutions across both equity and debt.”