| 2017 Rank | Custody Provider | Assets ($ millions) |
| 1 | State Street Corporation | 5,520,581 |
| 2 | J.P. Morgan | 4,363,492 |
| 3 | BNY Mellon | 2,464,623 |
| 4 | U.S. Bancorp Fund Services | 512,563 |
| 5 | Citi | 121,000 |
| 6 | MUFG Union Bank, N.A. | 43,740 |
| 7 | UMB Bank, n.a. | 36,599 |
All Data as of 12/31/17