| RINSO | ⊕ 1958 | ↓ ↑ ⊕ Multi-purpose | ⊕ Symbolic assemblers | ⊕ United States | parody of SOAP |
| SAP II | ⊕ 1958 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United States | SHARE Assembly Program version II |
| SOAP IIA | ⊕ 1958 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United States | Improved SOAP II |
| SOAP III | ⊕ 1958 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United States | SOAP extended by Knuth |
| XIL | ⊕ 1958 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United States | UNIVAC symbolic assembler |