| AUTOLEV | ⊕ 1988 | ↓ ↑ ⊕ Specialised Languages | Modelling | ⊕ United States | Mechanical systems language |
| AUTOMOD | ⊕ 1984 | ↓ ↑ ⊕ Specialised Languages | Modelling | ⊕ United States | Auto MOdelling language |
| MODEL II | ⊕ 1979 | ↓ ↑ ⊕ On-Line | Modelling | ⊕ United States | Evolution of Model |
| OMNI | ⊕ 1976 | ↓ ↑ ⊕ Specialised Languages | Modelling | ⊕ United States | |
| SDSC | ⊕ 1962 | ↓ ↑ ⊕ Specialised Languages | Modelling | ⊕ United States | The State Description Compiler |
| TOSS | ⊕ 1969 | ↓ ↑ ⊕ Experimental and other | Modelling | ⊕ United States |