| Fidelity Management & Research Company LLC | Boston | $5,685.04B | 1 |
| Geode Capital Management, LLC | Boston | $1,736.52B | — |
| Wellington Management Company LLP | Boston | $1,428.05B | 77 |
| Ssga Funds Management, Inc. | Boston | $1,420.65B | 16 |
| Strategic Advisers LLC | Boston | $1,370.13B | — |
| Massachusetts Financial Services Company | Boston | $514.05B | — |
| Columbia Management Investment Advisers, LLC | Boston | $502.4B | 12 |
| Loomis, Sayles & Company, L.P. | Boston | $386.88B | 5 |
| Arrowstreet Capital, Limited Partnership | Boston | $351.32B | 39 |
| Cambridge Associates, LLC | Boston | $326.7B | 92 |
| Manulife Investment Management (US) LLC | Boston | $228.04B | — |
| Mercer Investments LLC | Boston | $226.04B | 40 |
| Commonwealth Equity Services, LLC | Waltham | $212.66B | — |
| John Hancock Investment Management LLC | Boston | $212.05B | — |
| Harbourvest Partners, LLC | Boston | $191.18B | 311 |
| Acadian Asset Management LLC | Boston | $177.46B | 43 |
| Boston Management and Research | Boston | $154.73B | 22 |
| Nepc, LLC | Boston | $152.72B | 4 |
| Rhumbline Advisers Ltd Partnership | Boston | $136.48B | 24 |
| Income Research + Management | Boston | $130.65B | 15 |
| Putnam Investment Management, LLC | Boston | $117.24B | — |
| Boston Partners Global Investors, Inc. | Boston | $116.17B | 4 |
| MML Investors Services, LLC | Springfield | $115.64B | — |
| Mfs Institutional Advisors Inc. | Boston | $113.59B | 6 |
| Natixis Advisors, LLC | Boston | $108.65B | — |
| Bracebridge Capital, LLC | Boston | $100.35B | 12 |
| Eaton Vance Management | Boston | $97.02B | 14 |
| Bain Capital Private Equity, LP | Boston | $96.43B | 36 |
| Numeric Investors LLC | Boston | $94.4B | 24 |
| Wellington Alternative Investments LLC | Boston | $92.17B | 125 |
| Advent International, L.P. | Boston | $91.63B | 133 |
| Grantham Mayo van Otterloo & Co LLC | Boston | $80.97B | 38 |
| Sun Life Capital Management (u.s.) LLC | Wellesley Hills | $76.41B | 4 |
| Bain Capital Credit, LP | Boston | $76.3B | 154 |
| Adage Capital Management, L.P. | Boston | $70.44B | 1 |
| John Hancock Variable Trust Advisers LLC | Boston | $68.59B | — |
| Newton Investment Management North America LLC | Boston | $59.16B | — |
| Ta Associates Management, L.P. | Boston | $55.07B | 30 |
| Breckinridge Capital Advisors Inc | Boston | $54.28B | — |
| Gw&k Investment Management, LLC | Boston | $52.78B | 3 |
| Partners Capital Investment Group, LLP | Boston | $50.51B | 50 |
| Vestmark Advisory Solutions, Inc. | Wakefield | $49.85B | — |
| Scs Capital Management LLC | Boston | $48.65B | 60 |
| Manulife Investment Management Private Markets (US) LLC | Boston | $48.31B | 44 |
| General Catalyst Group Management, LLC | Cambridge | $45.5B | 49 |
| Panagora Asset Management Inc | Boston | $44.13B | 9 |
| Summit Partners, L.P. | Boston | $42.01B | 87 |
| 55i, LLC | Boston | $36.74B | — |
| The Putnam Advisory Company, LLC | Boston | $33.19B | 3 |
| Psg Equity L.L.C. | Boston | $30.18B | 56 |