| ASSEMBLER | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United States | Modification of Rochester Assembler at IBM Poughkeepsie |
| AUTOCODER | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Low-level Autocoders | ⊕ United States | IBM generalised autocode |
| BELL | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Bell Labs Interpreters | ⊕ United States | Bell labs compilers |
| CYCLONE Initial orders | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Initial orders | ⊕ United States | CYCLONE's initial orders |
| EASE | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Low-level Autocoders | ⊕ United States | GM Allison autocode |
| Elliot 401 Autocode | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Autocode Coeval | ⊕ United Kingdom | Elliot Bros Autocode |
| FLAIR | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Low-level Autocoders | ⊕ United States | Autocode for 650 |
| FLIP/SPUR | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assembly packages | ⊕ United States | Combination of autocode and assembler for UNIVAC 1103 |
| IT | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Internal Translators | ⊕ United States | Algebraic interpreter for IBM 705 |
| MISCRAP | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assembly packages | ⊕ United States | Lockheed diagnostic compiler for 1103A |
| MITILAC | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Macroassemblers | ⊕ United States | MIT macroassembler |
| QUEASY | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Low-level Autocoders | ⊕ United States | NOTS autocode for IBM 701 |
| RAWOOP | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United States | Macroassembler for UNIVAC 1103 |
| REG-SYMBOLIC | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United States | Los Alamos symbolic assembler |
| RELATIVE | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Low-level Autocoders | ⊕ United States | Interpretive autocode at GM Allison |
| SCRIPT | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Low-level Autocoders | ⊕ United States | GE Hanford autocoder |
| SIR | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Autocode Coeval | ⊕ United States | IBM Autocoder for IBM 650 |
| SNAP | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assembly packages | ⊕ United States | Ramo Woolridge floating point package for UNIVAC 1103 |
| SPEED CODING | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Low-level Autocoders | ⊕ United States | Redstone Arsenal Autocode |
| TAC initial orders | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Initial orders | ⊕ Japan | Initial order for the TAC computer |
| Wolontis-Bell Interpreter | ⊕ 1955 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Bell Labs Interpreters | ⊕ United States | High level interpreter at Bell labs for 650 |