| ↔ Order by name | ↔ Order by year | ↔ Order by year reverse | ↔ Order by Type | ↔ Order by Sammet category |
| ECL-1 | ⊕ 1969 | ↓ ↑ ⊕ Experimental and other | ⊕ Interface and windowing | ⊕ United Kingdom | Environment Control Language |
| me-too | ⊕ 1984 | ↓ ↑ ⊕ Specialised Languages | ⊕ Interface and windowing | ⊕ United Kingdom | Functional language for executable specifications |
| SPI | ⊕ 1987 | ↓ ↑ ⊕ Specialised Languages | ⊕ Interface and windowing | ⊕ United Kingdom | Interface definition language based around CSP and me-too |