| Conversational FORTRAN V | ⊕ 1966 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Non Standard FIV | ⊕ United States | |
| FORTRAN V | ⊕ 1966 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Non Standard FIV | ⊕ United States | Univac super-Fortran for the 1108 |
| IVTRAN | ⊕ 1966 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Non Standard FIV | ⊕ United States | Parallel FORTRAN |
| JFLIP | ⊕ 1966 | ↓ ↑ ⊕ Specialised Languages | ⊕ Non Standard FIV | ⊕ United States | FORTRAN Language with Interval Preprocessor |
| SDS Fortran | ⊕ 1966 | ↓ ↑ ⊕ Numerical Scientific | ⊕ Non Standard FIV | ⊕ United States |