| ALGOL 68-RT | ⊕ 1979 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL68s | ⊕ United Kingdom | Parallel ALGOL 68-R |
| Cray Fortran | ⊕ 1979 | ↓ ↑ ⊕ Numerical Scientific | ⊕ United States | Array processing FORTRAN for the Cray | |
| FOCAL | ⊕ 1979 | ↓ ↑ ⊕ Numerical Scientific | ⊕ United States | Forty-One CAlculator Language | |
| RS Algol | ⊕ 1979 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL68s | ⊕ United Kingdom | |
| S-Algol | ⊕ 1979 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ United Kingdom | St Andrew's Algol |