| Proshare Advisors LLC | Bethesda | $74B | — |
| PNC Capital Advisors LLC | Baltimore | $42.56B | — |
| Chevy Chase Trust Company | Bethesda | $40.29B | — |
| Asb Capital Management LLC | Bethesda | $32.87B | — |
| 1919 Investment Counsel, LLC | Baltimore | $23.98B | — |
| Durable Capital Partners LP | Bethesda | $18.16B | 2 |
| Ullico Investment Advisors, Inc. | Silver Spring | $12.75B | 9 |
| Realterm Transportation LLC | Annapolis | $10.01B | 11 |
| Arlington Management Employees, LLC | Bethesda | $9.73B | 5 |
| Jmi Management, L.P. | Baltimore | $9.48B | 16 |
| Artemis Real Estate Partners, LLC | Chevy Chase | $9.22B | 25 |
| D.f. Dent and Company, Inc. | Baltimore | $8.6B | — |
| Brown Advisory Investment Solutions Group LLC | Baltimore | $8.45B | 361 |
| Brown Capital Management, LLC | Baltimore | $8.1B | — |
| Midcap Financial Services Capital Management, LLC | Bethesda | $7.05B | 4 |
| Harbor Investment Advisory, LLC | Lutherville | $6B | — |
| T. Rowe Price (canada) Inc. | Baltimore | $5.72B | — |
| Asset Strategy Consultants LLC | Hunt Valley | $5.17B | — |
| Facet Wealth, Inc | Baltimore | $4.75B | — |
| G10 LLC | Hunt Valley | $4.34B | 11 |
| Heritage Investors Management Corp | Bethesda | $4.18B | — |
| New Century Advisors, LLC | Chevy Chase | $3.97B | — |
| Pennington Partners & Co., LLC | Bethesda | $3.95B | 10 |
| Verdence Capital Advisors, LLC | Hunt Valley | $3.91B | — |
| T. Rowe Price Advisory Services, Inc. | Owings Mills | $3.86B | — |
| FCP Fund Manager, L.P. | Chevy Chase | $3.8B | 9 |
| Greenspring Advisors, LLC | Towson | $3.78B | — |
| Campbell & Company Investment Adviser LLC | Baltimore | $3.47B | 8 |
| Hull Street Energy, LLC | Bethesda | $3.34B | 10 |
| Rock Springs Capital Management LP | Baltimore | $3.32B | 2 |
| Founders Financial Securities, LLC | Towson | $3.32B | — |
| Profund Advisors LLC | Bethesda | $3.3B | — |
| Lasalle Investment Management Securities, LLC | Baltimore | $3.1B | — |
| Xml Financial, LLC | Bethesda | $2.99B | — |
| The Prosperity Consulting Group, LLC | Owings Mills | $2.91B | — |
| Access Holdings Management Company LLC | Baltimore | $2.76B | 29 |
| Greenhouse Funds LLLP | Baltimore | $2.72B | 4 |
| Adams Diversified Equity Fund, Inc. | Baltimore | $2.66B | — |
| Abrams Bison Investments, L.L.C. | Bethesda | $2.51B | 2 |
| Baltimore-Washington Financial Advisors, Inc. | Columbia | $2.5B | — |
| Potomac Fund Management Inc | Bethesda | $2.41B | — |
| Enlightenment Capital, LLC | Chevy Chase | $2.34B | 14 |
| Alliance Partners LLC | Chevy Chase | $2.25B | — |
| Fulton Breakefield Broenniman,llc | Bethesda | $2.16B | — |
| Patient Capital Management, LLC | Baltimore | $2.08B | 1 |
| Cornerstone Advisory, LLC | Hunt Valley | $2.01B | 1 |
| Innovation X Advisors, LLC | Rockville | $1.83B | 20 |
| Trumbower Financial Advisors LLC | Bethesda | $1.83B | — |
| Impactassets Capital Partners Pb LLC | Bethesda | $1.8B | — |
| Advisors Preferred LLC | Rockville | $1.69B | — |