| AKL | ⊕ 1991 | ⊕ Japan | Andorra Kernel Language | ||
| CUP | ⊕ 1991 | ⊕ Japan | |||
| DOHJI | ⊕ 1991 | ⊕ Japan | |||
| EPOCH | ⊕ 1991 | ⊕ Japan | |||
| Neuro-Prolog | ⊕ 1991 | ↓ ↑ ⊕ String and List Processing | ⊕ Horn clause | ⊕ Japan | |
| Neuro-Prolog II | ⊕ 1991 | ↓ ↑ ⊕ String and List Processing | ⊕ Horn clause | ⊕ Japan | |
| Quixote | ⊕ 1991 | ⊕ Japan | |||
| UBASIC | ⊕ 1991 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Japan | Symbolic maths BASIC | |
| UDL/I | ⊕ 1991 | ⊕ Japan |