This paper summarizes the results of the IFAD Institutional Scaling Up Review (Phase 2), which was conducted under a grant from IFAD to the Brookings Institution. Johannes Linn served as project leader for Brookings and Cheikh Sourang as task manager for IFAD. The authors are grateful for the support received from many IFAD colleagues in carrying out this research. Special thanks are due to Michael Hamp and Steven Schonberger who respectively contributed to the analysis of partnerships and value chains. All views are those of the authors and should not be attributed to IFAD or Brookings.