| ↔ Order by name | ↔ Order by year | ↔ Order by year reverse | ↔ Order by Type | ↔ Order by Sammet category |
| Cactus | ⊕ 1998 | Greece | |||
| CS-Prolog II | ⊕ 1995 | ↓ ↑ ⊕ String and List Processing | ⊕ Horn clause | Greece | |
| QAS | ⊕ 1978 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Algebraic | Greece | Question answering system |
| SCAN | ⊕ 1987 | ↓ ↑ ⊕ Specialised Languages | Greece | Language for the SCAN encoding system |