| 1 | LPC | Alpine Aviation | Callsign: Apline Charter, | ZA | AVCODES |
| 2 | LPC | Alpine Aviation (Pty) Ltd | Callsign: Netstar, | ZA | AVCODES |
| 3 | LPC | Alpine Aviation | | | ICAO1 |
| 4 | LPC | LEHIGH PORTLAND CEMENT | | | PWRC |
| 5 | LPCA | LE PROJET CARDBOARD BOX INC | | | SCAC4 |
| 6 | LPCB | LOADPOWER OF COLUMBUS | | | SCAC3 |
| 7 | LPCB | LOPEZ BARRAGAN, PAULO CESAR | | | SCAC4 |
| 8 | LPCE | LEPCO ENTERPRISES INC | | | SCAC3 |
| 9 | LPCE | LAKE NORMAN EXPEDITE INC | | | SCAC4 |
| 10 | LPCK | L P TRUCKING | | | SCAC4 |
| 11 | LPCL | LAREDO POWER CONTAINERS LLC | | | SCAC4 |
| 12 | LPCM | L P CUSTOM MACHINING LTD | | | SCAC4 |
| 13 | LPCN | LA PAZ COMPANIA BAVIERA S A | | | SCAC3 |
| 14 | LPCN | LOLLY POP CHILDRENS WEAR CO | | | SCAC4 |
| 15 | LPCO | LOUISIANA-PACIFIC CORPORATION | | | SCAC3 |
| 16 | LPCR | LEELANAU TRANSIT COMPANY | | | PWRC |
| 17 | LPCU | CATERPILLAR (NI) LTD | | GB | BIC |
| 18 | LPCU | FG WILSON (ENGINEERING) LTD | | | SCAC4 |
| 19 | LPCX | Lehigh Portland Cement Co. | 7/1935-10/1966; eliminated 1/1969 | | NAKINA |
| 20 | LPCX | Lehigh Portland Cement Co. | 4/38-10/66; eliminated 1/69 | | NRHS |
| 21 | LPCX | LEJIGH PORTLAND CEMENT CO. | | | PWRC |
| 22 | LPCX | LEHIGH PORTLAND CEMENT CO | | | SCAC3 |
| 23 | LPCZ | FLEXI-VAN LEASING INC | | | SCAC4 |
