"There are colossal amounts of capital in search for investments that bring impact beyond a return on investment," said Grete Faremo, speaking to more than 600 attendees at the Forum.
"In the developing world, there are pressing, essential needs for basic infrastructure. The challenge is to create conditions, plans and partnerships that ensure that a return matches risk, while creating affordable benefits for ordinary people."
The Global Impact Investing Network is a non-profit organization dedicated to increasing the scale and effectiveness of impact investing. Its two-day Investor Forum brings together professionals from around the world interested in or working on impact investment initiatives.
More than 100 speakers presented, from both the private and public sectors.
Ms. Faremo called for participants to take action in helping to bring private investment to the fore to achieve the Sustainable Development Goals.
"We believe UNOPS can contribute to sustainable infrastructure development based on our knowledge and skills and on more than 20 years of experience. UNOPS can help to control and mitigate the risks involved in infrastructure investments in growth markets and developing economies," she said.
"We can bring potential partners together and help them realise their financial, social and environmental objectives by developing and investing in sustainable infrastructure project."
Around $6 trillion per year in the next 15 years will be required in investments towards energy, waste, water and transport. The vast majority of this will be needed in developing countries.
You can read Grete Faremo's full speech here.