| COMPASS | ⊕ 1961 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United States | |
| Dracula | ⊕ 1961 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United States | CCC Symbolic assembler |
| ROAR | ⊕ 1961 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United States | RPC-400 Assembler |
| S4 | ⊕ 1961 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United States | UNIVAC Assembler |
| STRAP II | ⊕ 1961 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United States | STRetch Assembly Program |
| THAT | ⊕ 1961 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Symbolic assemblers | ⊕ United States | Assembler at IT, replacement for SOAP and TASS |