| ↔ Order by name | ↔ Order by year | ↔ Order by year reverse | ↔ Order by Type | ↔ Order by Sammet category |
| ASP | ⊕ 1962 | ⊕ Symbolic assemblers | ⊕ United Kingdom | ||
| BAS | ⊕ 1962 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United Kingdom | Symbolic assembler for the ATLAS |
| Mercury Assembler | ⊕ 1964 | ⊕ Symbolic assemblers | ⊕ United Kingdom |