Pension fund or public asset manager
Washington State Investment Board (WSIB)
The Washington State Investment Board (WSIB) is a leading institutional investor responsible for managing investments for public retirement plans, industrial insurance funds, permanent funds for schools and universities, and other state funds in Washington. Established in 1981, WSIB operates as a disciplined, strategic, and long-term investor, aiming to maximise investment returns at a prudent level of risk for the exclusive benefit of its fund participants and beneficiaries. A significant portion of its portfolio, approximately 40% of its retirement assets, is allocated to private assets, including private equity, real estate, and tangible assets. WSIB is known for its global footprint, with investments in numerous countries and currencies, and actively integrates environmental, social, and governance (ESG) considerations into its investment decision-making processes, expecting high standards from its investment partners.
Investment focus
- Sectors
- Energy and powerInfrastructure
- Stages and strategies
- GrowthFund investments
- Regions
- Northern Africa, Eastern Africa, Western Africa, Central Africa, Southern Africa
Fund commitments
- TPG Rise Fund III, L.P.
- Advent International GPE IX, L.P.
- Hellman & Friedman Capital Partners XI
- Stonepeak Infrastructure Fund V
- KKR European Fund III
- Searchlight Capital III, L.P
- FP Credit Partners III
- KSL Capital Partners VI LP
- TPG Rise Fund IV
- Geronimo Renewable Infrastructure Partners, L.P.
- TPG Partners X
- TPG Rise Fund II
- TPG Rise Fund I
- Sixth Street Opportunities Fund VI
- GTCR Capital Solutions Fund
- Apax X, L.P
- TPG Rise Climate Fund I
- TA XIII, L.P.
- Blackstone Capital Partners VIII, L.P
- TPG Rise Climate II
Sources
- Partner Researchers, accessed 14 November 2026