| Board of Trustees of the CPF of the IUOE and Participating Employers | 36-6052390 | Washington | 2 | 104,766 | $27.5B |
| Board of Trustees of the I.A.M. National Pension Fund | 51-6031295 | Washington | 1 | 102,863 | $15.0B |
| Danaher Corporation | 59-1995548 | Washington | 16 | 157,626 | $8.4B |
| Geico Corporation | 52-1135801 | Washington | 1 | 28,209 | $6.2B |
| Federal National Mortgage Association | 52-0883107 | Washington | 4 | 22,199 | $4.6B |
| UMWA 1974 Pension Trust Board of Trustees | 52-1050282 | Washington | 1 | 64 | $3.8B |
| International Brotherhood of Electrical Workers' Pension Benefit Fund | 53-0088380 | Washington | 8 | 476,478 | $3.7B |
| Georgetown University | 53-0196603 | Washington | 4 | 24,980 | $3.4B |
| Finra | 53-0088710 | Washington | 5 | 13,755 | $3.0B |
| American National Red Cross | 53-0196605 | Washington | 4 | 57,665 | $2.8B |
| AARP | 95-1985500 | Washington | 5 | 9,821 | $2.6B |
| Bricklayers & Trowel Trades Intl Pension FD BD of Trustee | 52-6127746 | Washington | 2 | 48,784 | $2.4B |
| National Railroad Passenger Corporation | 52-0910053 | Washington | 8 | 53,054 | $2.2B |
| Board of Trustees of Liuna Staff and Affiliates Pension Fund | 52-0743575 | Washington | 1 | 3,626 | $2.2B |
| Hogan Lovells US LLP | 53-0084704 | Washington | 8 | 10,063 | $2.0B |
| Covington & Burling LLP | 53-0188411 | Washington | 5 | 4,457 | $1.9B |
| Howard University | 53-0204707 | Washington | 3 | 12,467 | $1.9B |
| Washington Gas Light Company | 53-0162882 | Washington | 7 | 5,118 | $1.9B |
| American Federation of State, County and Municipal Employees | 53-0237789 | Washington | 3 | 4,298 | $1.8B |
| Arnold & Porter KAYE Scholer LLP | 53-0208605 | Washington | 3 | 3,875 | $1.8B |
| Joint Board of Trustees Teamsters Local 639 - Employers Pension Trust | 53-0237142 | Washington | 1 | 3,542 | $1.7B |
| Board of Trustees of the S.E.I.U. National Industry Pension Fund | 52-6148540 | Washington | 1 | 98,200 | $1.7B |
| Board of Trustees of the Liuna National (Industrial) Pension Fund | 52-6074345 | Washington | 1 | 18,061 | $1.7B |
| BD of Trustees SEIU Affiliates Officers and Employees Pension Plan | 52-0812348 | Washington | 1 | 9,065 | $1.6B |
| The National Education Association | 53-0115260 | Washington | 9 | 2,503,646 | $1.6B |
| American Chemical Society | 53-0196572 | Washington | 4 | 6,003 | $1.4B |
| American University | 53-0196549 | Washington | 6 | 11,022 | $1.4B |
| Children's National Hospital | 52-1640403 | Washington | 1 | 9,286 | $1.3B |
| Smiths Group Services Corporation | 22-3015350 | Washington | 3 | 8,139 | $1.2B |
| Pension BD of the General Pension Plan of the INT'L Union of Operating | 52-6124299 | Washington | 1 | 2,198 | $1.2B |
| FTI Consulting, Inc. | 52-1261113 | Washington | 1 | 4,676 | $1.2B |
| Executive Committee of the U.F.C.W Intl Union | 81-2741678 | Washington | 1 | 2,086 | $1.2B |
| Mid-Atlantic Permanente Medical Group, PC | 52-1196226 | Washington | 6 | 2,167 | $1.1B |
| Arentfox Schiff LLP | 53-0214923 | Washington DC | 10 | 4,222 | $1.1B |
| Board of Trustees I.A.M. 401(k) Fund | 32-0443423 | Washington | 1 | 33,654 | $972.2M |
| National Academy of Sciences | 53-0196932 | Washington | 4 | 3,685 | $827.5M |
| UAW Retirees of Daimler Trucks North America Welfare Benefit Trust | 47-6377585 | Washington | 1 | 2,137 | $799.5M |
| AFL-CIO Staff Retirement Plan Congress of Industrial Organizations | 53-0228172 | Washington | 3 | 1,515 | $776.2M |
| Association of Universities for Research in Astronomy, Inc. | 86-0138043 | Washington | 3 | 4,025 | $771.9M |
| Crowell & Moring LLP | 52-1150358 | Washington | 2 | 2,650 | $694.9M |
| Pcaob | 74-3073065 | Washington | 2 | 1,740 | $682.4M |
| Stagwell Global LLC | 87-1877859 | Washington | 1 | 6,235 | $678.0M |
| Williams & Connolly LLP | 52-0851221 | Washington | 6 | 3,652 | $626.1M |
| Chemonics International, Inc. | 52-2145827 | Washington | 3 | 5,026 | $612.9M |
| The Catholic University of America | 53-0196583 | Washington | 2 | 3,122 | $605.8M |
| Service Employees Intl Union | 36-0852885 | Washington | 4 | 6,209 | $535.2M |
| Steptoe LLP | 52-1349790 | Washington | 5 | 1,615 | $532.4M |
| Finnegan, Henderson, Farabow, Garrett & Dunner, L.L.P. | 52-0809518 | Washington | 4 | 1,276 | $532.4M |
| Eversheds Sutherland (US) LLP | 58-0619407 | Washington | 5 | 1,253 | $532.1M |
| UAW Retirees of Mack Trucks Health Benefit Fund | 45-6488442 | Washington | 1 | 0 | $518.6M |
| Stagwell Marketing Group LLC | 47-2913060 | Washington | 1 | 1,696 | $503.4M |
| The Carlyle Group Employee Co., L.L.C. | 52-1887096 | Washington | 3 | 3,470 | $471.0M |
| Committee of UAW Retirees of the BUDD Company Health and Welfare Plan | 81-3021883 | Washington | 1 | 0 | $462.5M |
| Medical Faculty Associates, Inc. | 52-2220700 | Washington | 6 | 6,864 | $461.2M |
| The Board of Trustees of the Communications Workers of America - | 52-1137722 | Washington | 1 | 10,510 | $453.3M |
| Committee of UAW Retirees Health Care Plan | 47-7404015 | Washington | 1 | 0 | $440.0M |
| National Public Radio, Inc. | 52-0907625 | Washington | 3 | 3,856 | $425.8M |
| International City Management Association Retirement Corporation | 23-7268394 | Washington | 3 | 1,780 | $396.6M |
| National Geographic Society | 53-0193519 | Washington | 4 | 1,268 | $384.7M |
| UAW Retirees of the Dana Corp. Health and Welfare Trust Committee | 26-1851652 | Washington | 1 | 0 | $376.4M |
| Association of American Medical Colleges | 36-2169124 | Washington | 2 | 1,566 | $374.6M |
| Joint Board of Trustees of Local 639 Employers Health Trust Fund | 53-0209136 | Washington | 1 | 3,324 | $359.7M |
| Chamber of Commerce of the United States of America | 53-0045720 | Washington | 3 | 1,865 | $354.7M |
| Wiley REIN LLP | 52-1289988 | Washington | 3 | 1,013 | $352.9M |
| The Urban Institute | 52-0880375 | Washington | 11 | 1,130 | $329.9M |
| Southeastern Universities Research Association, Inc. (SURA) | 54-1156453 | Washington | 1 | 1,103 | $324.0M |
| Carnegie Institution of Washington | 53-0196523 | Washington | 3 | 1,306 | $319.8M |
| Berkeley Research Group, LLC | 27-1451273 | Washington | 2 | 2,912 | $303.3M |
| Govcio LLC | 27-3903343 | Washington | 1 | 3,018 | $282.0M |
| Consilio, LLC | 54-2019342 | Washington | 1 | 5,572 | $276.0M |
| Board of Trustees Teamster Affiliates Pension Plan | 52-6128127 | Washington | 1 | 242 | $267.0M |
| Communications Workers of America, AFL-CIO, CLC | 53-0246709 | Washington | 6 | 2,283 | $261.5M |
| The Brookings Institution | 53-0196577 | Washington | 5 | 2,053 | $260.2M |
| American Association for the Advancement of Science | 53-0196568 | Washington | 2 | 893 | $256.7M |
| American Federation of Government Employees | 53-0025740 | Washington | 3 | 868 | $245.4M |
| Sibley Memorial Hospital | 53-0196602 | Washington | 3 | 6,814 | $238.6M |
| Board of Trustees - UMWA Cash Deferred Savings Plan of 1988 | 52-6377947 | Washington | 1 | 2,247 | $234.8M |
| BD of Trustees Iubac Salaried EMPL PEN Plan | 47-2695752 | Washington | 1 | 184 | $233.8M |
| World Wildlife Fund, Inc. | 52-1693387 | Washington DC | 3 | 1,854 | $232.6M |
| Edison Electric Institute | 13-0659550 | Washington | 5 | 449 | $232.0M |
| Ankura Consulting Group, LLC | 47-2435218 | Washington | 2 | 1,384 | $231.3M |
| American College of Cardiology Foundation | 13-5641985 | Washington | 2 | 1,126 | $223.8M |
| American Petroleum Institute | 13-0433430 | Washington | 8 | 2,299 | $222.9M |
| Universities Space Research Association | 52-0892064 | Washington | 4 | 454 | $222.6M |
| Association of American Railroads | 53-6000125 | Washington | 4 | 1,906 | $220.7M |
| The Aspen Institute | 84-0399006 | Washington | 2 | 1,176 | $219.1M |
| Board of Trustees, United Mine Work ERS of America 1993 Benefit Plan | 52-1888497 | Washington | 1 | 2,089 | $216.1M |
| American Bankers Association | 52-1001304 | Washington | 5 | 1,067 | $214.5M |
| Board of Trustees of the Liuna National 401(k) Retirement Savings Plan | 52-6941497 | Washington | 1 | 1,885 | $206.2M |
| Sterne Kessler Goldstein & Fox P.L.L.C. | 52-1193988 | Washington | 3 | 1,035 | $204.9M |
| EAB Global, Inc. | 82-2931750 | Washington | 2 | 3,622 | $204.8M |
| Groom Law Group, Chartered | 52-1219029 | Washington | 3 | 305 | $195.4M |
| International Association of Firefighters | 53-0088290 | Washington | 4 | 438 | $194.7M |
| Chemonics Holdings, Inc. | 33-2485617 | Washington | 1 | 2,467 | $181.0M |
| VOX Media, LLC | 20-2057273 | Washington | 2 | 2,439 | $179.3M |
| Boies Schiller Flexner LLP | 65-1160056 | Washington | 2 | 693 | $175.5M |
| Miller & Chevalier, Chartered | 52-1212890 | Washington | 4 | 275 | $172.8M |
| Beveridge & Diamond, P.C. | 52-1247549 | Washington | 4 | 822 | $172.6M |
| Investment Company Institute | 13-5266605 | Washington | 3 | 326 | $165.2M |
| American Psychological Association | 53-0205890 | Washington | 2 | 1,044 | $164.0M |