Founded in 2014 by investors and for investors, Long Term Infrastructure Investors Association (LTIIA) is a not-for-profit international professional association; most of our members are institutional investors and fund managers with responsibilities over long-term and open-ended infrastructure investment mandates. Our action circle includes leading global and regional discussion fora, information powerhouses and service providers to the infrastructure marketplace.

LTIIA works with a wide range of stakeholders, including infrastructure investors, policy-makers and academia, on supporting long-term, responsible deployment of private capital to public infrastructure around the world. Its members, hailing from various jurisdictions, collectively manage close to US$ 12 t of assets, out of which over $ 350b of infrastructure assets.

LTIIA members, spread across the main advanced economies, aim to facilitate and promote investment in infrastructure which enables long-term, sustainable development of communities & countries.

The Long Term Infrastructure Investors Association (LTIIA) will formally join Invest Europe on 1 January 2026, following a transition period during which Invest Europe will assume secretariat responsibilities to ensure continuity in LTIIA’s advocacy work. This strategic step will help LTIIA grow within a larger network and strengthen support for long-term infrastructure investment.