| 2CL | ⊕ 1965 | ↓ ↑ ⊕ Specialised Languages | ⊕ Numerical Control | ⊕ United Kingdom | Modified NEL NC machine |
| ASP | ⊕ 1965 | ↓ ↑ ⊕ String and List Processing | ⊕ Map/Dictionary | ⊕ United Kingdom | Associative Structures Package |
| Atlas Algol | ⊕ 1965 | ⊕ United Kingdom | |||
| Atlas Commercial Language | ⊕ 1965 | ⊕ COBOL coeval | ⊕ United Kingdom | ||
| Clowes | ⊕ 1965 | ⊕ Syntactical descriptions | ⊕ United Kingdom | Picture grammar | |
| CPL1 | ⊕ 1965 | ↓ ↑ ⊕ Multi-purpose | ⊕ CPL, BCPL and B | ⊕ United Kingdom | Implemented subset of CPL |
| EGTRAN | ⊕ 1965 | ⊕ Fortran I-III Variants | ⊕ United Kingdom | ||
| GPM | ⊕ 1965 | ↓ ↑ ⊕ String and List Processing | ⊕ Macros | ⊕ United Kingdom | General Purpose Macro-generator |
| Plasyd | ⊕ 1965 | ↓ ↑ ⊕ Specialised Languages | ⊕ PL-360s | ⊕ United Kingdom | ICL systems language |
| SEP | ⊕ 1965 | ↓ ↑ ⊕ Multi-purpose | ⊕ Early Autocodes | ⊕ United Kingdom | |
| SIMON II | ⊕ 1965 | ↓ ↑ ⊕ Specialised Languages | ⊕ Process interaction | ⊕ United Kingdom | Algol-based simulation language |
| SNAP | ⊕ 1965 | ↓ ↑ ⊕ Experimental and other | ⊕ Macros | ⊕ United Kingdom | |
| T3 Fortran | ⊕ 1965 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Fortran I-III Variants | ⊕ United Kingdom | Titan Fortran III |