| BIL | ⊕ 1978 | ↓ ↑ ⊕ Specialised Languages | Microprogramming and HLAs | ⊕ United States | Balm Implementation Language |
| CENTRAN | ⊕ 1975 | ↓ ↑ ⊕ Excluded from Sammet | Microprogramming and HLAs | ⊕ United States | High level macro assembler |
| IBAL | ⊕ 1968 | ↓ ↑ ⊕ Excluded from Sammet | Microprogramming and HLAs | ⊕ United States | ILLIAC HL Assembler |
| MIL | ⊕ 1970 | ↓ ↑ ⊕ Multi-purpose | Microprogramming and HLAs | ⊕ United States | Micro Implementation Language |
| MPL | ⊕ 1971 | ↓ ↑ ⊕ Experimental and other | Microprogramming and HLAs | ⊕ United States | MicroProgramming Language |
| PEESPOL | ⊕ 1971 | ↓ ↑ ⊕ Experimental and other | Microprogramming and HLAs | ⊕ United States | UoI microprogramming system |
| SPL | ⊕ 1969 | ↓ ↑ ⊕ Multi-purpose | Microprogramming and HLAs | ⊕ United States | System Processing Language |