About Arbor

Arbor aggregates private fund performance data from public pension fund disclosures — the most credible source of GP performance in private markets.

The problem

Private markets performance data is fragmented, expensive, and often self-reported by GPs. Large institutional investors have teams dedicated to collecting and normalizing this data. Mid-market LPs — family offices, small endowments, foundations — don't have those resources but still need to make informed allocation decisions.

Our approach

Public pension systems in the United States are required to disclose their private fund investments and performance data. CalPERS, CalSTRS, Washington State Investment Board, and dozens of other pension systems publish detailed performance reports. We systematically collect, normalize, and structure this data into a single searchable platform.

Why LP-sourced data matters

When a pension fund reports that a fund returned 15% net IRR, that number was independently calculated by the LP's custodian bank and audited. It's not a GP marketing figure. When the same fund shows consistent returns across multiple LP disclosures, you have high-confidence benchmarking data.