| 1 | Harvard College | 1636 |
| 2 | Harvard Library | 1638 |
| 3 | McCormick & Company | 1669 |
| 4 | St. John's College | 1696 |
| 5 | Biblioteca da Universidade de Yale | 1701 |
| 6 | Universidade Yale | 1701 |
| 7 | Yale College | 1701 |
| 8 | Universidade Washington e Lee | 1749 |
| 9 | Columbia College | 1754 |
| 10 | Escola de Medicina Perelman da Universidade da Pensilvânia | 1765 |
| 11 | Columbia University Vagelos College of Physicians and Surgeons | 1767 |
| 12 | College of Charleston | 1770 |
| 13 | Banco da América do Norte | 1781 |
| 14 | Escola de Medicina Harvard | 1782 |
| 15 | Dickinson College | 1783 |
| 16 | Jones Lang LaSalle | 1783 |
| 17 | Bank of America | 1784 |
| 18 | Universidade da Geórgia | 1785 |
| 19 | Universidade da Carolina do Norte | 1789 |
| 20 | Universidade de Vermont | 1791 |
| 21 | Hamilton College | 1793 |
| 22 | Universidade do Tennessee | 1794 |
| 23 | Valid | 1795 |
| 24 | Colgate-Palmolive | 1806 |
| 25 | Biblica | 1809 |
| 26 | Yale School of Medicine | 1810 |
| 27 | Warner Chappell Music | 1811 |
| 28 | Seminário Teológico de Princeton | 1812 |
| 29 | Sociedade Antiquária Americana | 1812 |
| 30 | Colby College | 1813 |
| 31 | E. Remington and Sons | 1816 |
| 32 | Harvard Law School | 1817 |
| 33 | Brooks Brothers | 1818 |
| 34 | Universidade de Saint Louis | 1818 |
| 35 | Centre College | 1819 |
| 36 | Faculdade de Direito da Universidade da Virgínia | 1819 |
| 37 | Universidade de Indiana | 1820 |
| 38 | Universidade de Indiana | 1820 |
| 39 | Amherst College | 1821 |
| 40 | Universidade George Washington | 1821 |
| 41 | Instituto Politécnico Rensselaer | 1824 |
| 42 | Yale Law School | 1824 |
| 43 | Baldwin Locomotive Works | 1825 |
| 44 | KeyBank | 1825 |
| 45 | Lafayette College | 1826 |
| 46 | Baltimore and Ohio Railroad | 1827 |
| 47 | University of North Alabama | 1830 |
| 48 | William Cramp & Sons | 1830 |
| 49 | Universidade Wesleyan | 1831 |
| 50 | Universidade de Nova Iorque | 1831 |
| 51 | Universidade do Alabama | 1831 |
| 52 | Rogers Locomotive and Machine Works | 1832 |
| 53 | C.F. Martin & Company | 1833 |
| 54 | Mercer University | 1833 |
| 55 | Oberlin College | 1833 |
| 56 | Long Island Rail Road | 1834 |
| 57 | Biblioteca Nacional de Medicina dos Estados Unidos | 1836 |
| 58 | Davidson College | 1837 |
| 59 | Little, Brown and Company | 1837 |
| 60 | Marshall University | 1837 |
| 61 | Mount Holyoke College | 1837 |
| 62 | Tiffany & Co. | 1837 |
| 63 | Dodd, Mead & Co. | 1839 |
| 64 | Universidade do Missouri | 1839 |
| 65 | Virginia Military Institute | 1839 |
| 66 | Southwestern University | 1840 |
| 67 | Fazenda Brook | 1841 |
| 68 | Punahou School | 1841 |
| 69 | Samford University | 1841 |
| 70 | American Oriental Society | 1842 |
| 71 | The Citadel | 1842 |
| 72 | College of the Holy Cross | 1843 |
| 73 | Stanley Black & Decker | 1843 |
| 74 | Universidade do Estado de Nova Iorque em Albany | 1844 |
| 75 | Lycoming | 1845 |
| 76 | New York Life Insurance Company | 1845 |
| 77 | Universidade Baylor | 1845 |
| 78 | Beloit College | 1846 |
| 79 | Charles Scribner's Sons | 1846 |
| 80 | Grinnell College | 1846 |
| 81 | Universidade de Buffalo | 1846 |
| 82 | City College of New York | 1847 |
| 83 | Tribune Media | 1847 |
| 84 | Comitê Nacional Democrata | 1848 |
| 85 | Galeria Knoedler | 1848 |
| 86 | Universidade do Wisconsin-Madison | 1848 |
| 87 | University of Wisconsin System | 1848 |
| 88 | Comerica | 1849 |
| 89 | Union Iron Works | 1849 |
| 90 | American Express | 1850 |
| 91 | Antioch College | 1850 |
| 92 | Boston Athenæum | 1850 |
| 93 | U.S. Bancorp | 1850 |
| 94 | Universidade de Rochester | 1850 |
| 95 | University of Nebraska system | 1850 |
| 96 | Woman's Medical College of Pennsylvania | 1850 |
| 97 | Fruit of the Loom | 1851 |
| 98 | Illinois Central Railroad | 1851 |
| 99 | Northeastern State University | 1851 |
| 100 | Universidade do Estado da Flórida | 1851 |