I
IMRF
Pension fund · Oak Brook, United States
Who IMRF is.
- Historical Background
- The Illinois Municipal Retirement Fund (IMRF) was established by the Illinois General Assembly in 1939 and commenced operations in 1941. Initially launched with five local government employers and $5,000 in assets, the fund expanded significantly in 1947 to include school districts, which grew its employer base from 156 to 652.
- Source of Capital
- IMRF is a public pension fund, with capital sourced from contributions made by public employees and their respective government employers throughout Illinois. It operates as a multi-employer, defined-benefit plan, pooling contributions and investment earnings to fund retirement, disability, and death benefits.
The funds IMRF backs.
IMRF is a limited partner in 188 funds. 28 of them place in the Power Law Investor Ranking; those lead, best-ranked first.























How IMRF’s fund book is spread.
The 188 funds IMRF backs, by where the manager is headquartered and how many funds that manager has raised.
Where those managers are based
By fund headquarters.
- North America 15884%
- Europe 2714%
- Rest of world 32%
United States 156 · United Kingdom 21 · Canada 2 · China 1
How established those managers are
Managers grouped by how many funds they have raised — across the 111 of 188 with a fund history on record.
The companies IMRF backs directly.
IMRF holds 2 companies directly, separate from the funds it commits to as a limited partner.


Other LPs.
Other pension funds in the Power Law LP ranking, closest to IMRF by combined power-law score — North America first, then the nearest worldwide.