| 1901 | HIDX | Merchants Despatch Transportation Corp. | 1/1941-1/1943 | NAKINA | |
| 1902 | HIDX | MERCHANTS DESPATCH TRANSPORTATION CORP. | PWRC | ||
| 1903 | HIEC | HIEB TRANS LOGISTICS LLC | SCAC4 | ||
| 1904 | HIEL | HIELO Y REFRIGERACION FRONTERIZA SA | SCAC4 | ||
| 1905 | HIEM | HIBMA TRUCKING | SCAC4 | ||
| 1906 | HIEP | HOUSTON INTERMODAL EXPRESS LLC | SCAC4 | ||
| 1907 | HIER | HILLIER TRUCKING | SCAC4 | ||
| 1908 | HIES | HIERS, J CO INC | SCAC4 | ||
| 1909 | HIET | HIEL TRUCKING INC | SCAC4 | ||
| 1910 | HIF | Heli-Iberica Fotogrametria | ICAO1 | ||
| 1911 | HIFER | HIFER CONSTRUCCION, CONSERVACION Y SERVICIOS, S.A. | ES | VKM | |
| 1912 | HIFI | HELLMANN WORLDWIDE LOGISTICS INC | SCAC4 | ||
| 1913 | HIG | Heli-Inter Guyane | ICAO1 | ||
| 1914 | HIGG | HIGG TRUCKING INC | SCAC4 | ||
| 1915 | HIGH | HIGHLAND TRANSPORTATION INC | SCAC4 | ||
| 1916 | HIGK | HIDALGOS TRUCKING | SCAC4 | ||
| 1917 | HIGO | HI-GRADE OIL CO INC | SCAC4 | ||
| 1918 | HIGR | HIGH-TECH AGRO LTD | SCAC4 | ||
| 1919 | HIGS | HERMILA INES, GARCIA BENAVIDES | SCAC4 | ||
| 1920 | HIGY | HIGHWAY FREIGHT SYSTEMS INC | SCAC4 | ||
| 1921 | HIHN | HIGH LINK LINE INC | SCAC4 | ||
| 1922 | HIHO | HITCH HOUSE, THE | SCAC4 | ||
| 1923 | HIHP | HIGH HOPES TRANSPORTATION INC | SCAC4 | ||
| 1924 | HIHR | HRCP II HAMPTON ROADS CHASSIS POOL | SCAC4 | ||
| 1925 | HIHT | HIGH TECHNOLOGY LOGISTICS | SCAC1 | ||
| 1926 | HIIA | HTS INTERNATIONAL INC | SCAC4 | ||
| 1927 | HIIN | HARMON INTERNATIONAL INDUSTRIES INC | SCAC4 | ||
| 1928 | HIIT | HAWAII INTERMODAL TANK TRANSPORT | SCAC4 | ||
| 1929 | HIIX | TTX Co., Hamburg Division | added 1/1992; 1/1994; eliminated 7/1996; 7/2000-7/2005 (not listed) | NAKINA | |
| 1930 | HIIX | Trailer Train Co., Hamburg Division | added 7/1984; eliminated 1/1992 | NAKINA | |
| 1931 | HIIX | Hamburg Industries, a Division of Trailer Train Co. | added 4/1984; eliminated 7/1984 | NAKINA | |
| 1932 | HIIX | Hamburg Industries, Inc. | added 4/1976; 1/1980; eliminated 4/1984 | NAKINA | |
| 1933 | HIIX | Hamburg Industries, Inc. | added 4/76; 1/80; eliminated 4/84 | NRHS | |
| 1934 | HIIX | Hamburg Industries, a Division of Trailer Train Co. | added 4/84; eliminated 7/84 | NRHS | |
| 1935 | HIIX | Trailer Train Co., Hamburg Division | added 7/84; eliminated 1/92 | NRHS | |
| 1936 | HIIX | TTX Co., Hamburg Division | added 1/92; 1/94; eliminated 7/96 | NRHS | |
| 1937 | HIIX | TTX Co., Hamburg Division | Jul-00 | NRHS | |
| 1938 | HIIX | TTX COMPANY - HAMBURG DIVISION | PWRC | ||
| 1939 | HIIX | Hamburg Industries (TTX) | RSRV | ||
| 1940 | HIIX | TTX COMPANY | SCAC4 | ||
| 1941 | HIKH | HIKOH TRUCKING | SCAC4 | ||
| 1942 | HIKS | HICKS TRUCKING INC | SCAC4 | ||
| 1943 | HIKT | HICK TRUCKING COMPANY OF LITCHFIELD | SCAC4 | ||
| 1944 | HIKW | HIRSCHE, KENNETH WILLIAM INC | SCAC4 | ||
| 1945 | HILC | HILL TRANSPORT INC | SCAC4 | ||
| 1946 | HILF | HILITE SEAFOOD | SCAC4 | ||
| 1947 | HILH | HORIZON INT'L SHIPPING INC | SCAC4 | ||
| 1948 | HILI | HI-LINE TRANSFER AND STORAGE INCORP | SCAC4 | ||
| 1949 | HILJ | HILL, JAMES P INC | SCAC4 | ||
| 1950 | HILLSIDE | 22 Hillside | USA | TRAFFIC | |
| 1951 | HILM | HI-LITE MARKINGS INC | SCAC4 | ||
| 1952 | HILN | HORIZON INTERNATIONAL LINES | SCAC4 | ||
| 1953 | HILP | HILLTOP OIL COMPANY INC | SCAC4 | ||
| 1954 | HILS | HILL TRANSPORTATION CO | PWRC | ||
| 1955 | HILV | HILL TRANSPORTATION SERVICE INC | SCAC4 | ||
| 1956 | HILX | Hillman Coal & Coke Co. | 7/1923 | NAKINA | |
| 1957 | HILX | *HILLMAN COAL & COKE CO. | PWRC | ||
| 1958 | HILX | +HILLIARD INVESTMENT, LLC | PWRC | ||
| 1959 | HILX | HILLIARD INVESTMENTS LLC | SCAC4 | ||
| 1960 | HIMA | HI-MYST | SCAC4 | ||
| 1961 | HIMG | HILL MOVING SERVICES INC | SCAC4 | ||
| 1962 | HIMR | HI-LINE MOVING SERVICES INC | SCAC4 | ||
| 1963 | HIMS | HINDMAN & ISAACS MOVING & STORAGE I | SCAC4 | ||
| 1964 | HIMT | HIMCO TRUCKING SERVICE INC | SCAC4 | ||
| 1965 | HIMU | BASELL POLIOLEFINE ITALIA SPA | SCAC4 | ||
| 1966 | HIMX | Heppner Iron & Metal Co. | added 1/1975; 1/1975-1/1980; eliminated 5/1983; eliminated 7/1988 | NAKINA | |
| 1967 | HIMX | Heppner Iron & Metal Co. | added 1/75; 1/75-1/80; eliminated 5/83; eliminated 7/88 | NRHS | |
| 1968 | HIMX | HEPPNER IRON & METAL CO. [HANNIBAL IRON & METAL] | PWRC | ||
| 1969 | HIMX | Heppner Iron and Metal | RSRV | ||
| 1970 | HIMY | HIMILAYA EXPRESS ANTWERPEN BELGIUM | SCAC4 | ||
| 1971 | HIN | Holding International Group | ICAO1 | ||
| 1972 | HINA | HUNTWOOD INDUSTRIES | SCAC4 | ||
| 1973 | HINB | HCC INC | SCAC4 | ||
| 1974 | HINC | HINDS TRUCKING INC | SCAC4 | ||
| 1975 | HIND | HENSLEY INDUSTRIES INC | SCAC4 | ||
| 1976 | HINF | HAINES, FRED, AND COMPANY, INC | SCAC1 | ||
| 1977 | HINF | HAINES, FRED AND CO | SCAC4 | ||
| 1978 | HINH | HI NEIGHBOR FLOOR COVERING CO | SCAC4 | ||
| 1979 | HINI | HI-NOON PETROLEUM INC | SCAC4 | ||
| 1980 | HINK | HENDERSON INC | SCAC4 | ||
| 1981 | HINL | HAANER INC | SCAC4 | ||
| 1982 | HINM | HULTDINS INC | SCAC4 | ||
| 1983 | HINN | HINSON TRANSPORT SERVICE | SCAC4 | ||
| 1984 | HINO | Hino | J | TRAFFIC | |
| 1985 | HINP | HINRICHSEN EXPRESS INC | SCAC4 | ||
| 1986 | HINQ | HERNKES INC | SCAC4 | ||
| 1987 | HINS | HEALDWORKS INC | SCAC4 | ||
| 1988 | HINV | HOMEDELIVERY | SCAC4 | ||
| 1989 | HINW | HERWOOD INC | SCAC4 | ||
| 1990 | HINX | Heritage Inks International Corp. | eliminated 1/1998; 7/2000-7/2005 (not listed) | NAKINA | |
| 1991 | HINX | Heritage Inks International Corp. | eliminated 1/98; 7/2000 | NRHS | |
| 1992 | HINX | HERITAGE INKS INTERNATIONAL CORP | PWRC | ||
| 1993 | HINX | Heritage Inks International Corporation | RSRV | ||
| 1994 | HINY | HATCHERY INTERNATIONAL | SCAC4 | ||
| 1995 | HIOL | HALL OIL COMPANY INC | SCAC4 | ||
| 1996 | HIOM | HILL, O B TRUCKING & RIGGING CO INC | SCAC4 | ||
| 1997 | HION | HJM INTERNATIONAL OF NY INC | SCAC4 | ||
| 1998 | HIOT | HAWAIIAN OCEAN TRANSPORT INC | SCAC4 | ||
| 1999 | HIP | Starship | ICAO1 | ||
| 2000 | HIP | HIP-AZOTARA DOO | RS | VKM |