| ALGOL 68 | ⊕ 1968 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL68s | ⊕ International | 3rd generation ALGOL |
| Calgary ALGOL | ⊕ 1968 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ Canada | |
| CAMAL | ⊕ 1968 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Algebraic | ⊕ United Kingdom | CAMbridge ALgebra system |
| COMPAC | ⊕ 1968 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Other US historic | ⊕ United States | UNIVAC Compiler |
| FORMAT-FORTRAN | ⊕ 1968 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Non Standard FIV | ⊕ United States | |
| Minority report Algol 68 | ⊕ 1968 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ International | |
| RC-Fortran | ⊕ 1968 | ↓ ↑ ⊕ Numerical Scientific | ⊕ FORTRAN IV standard | ⊕ Denmark | Fortran for the RC 4000 |