| ALGAMC | ⊕ 1966 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ Russian Federation | Russian Algol dialect |
| ALGOL C | ⊕ 1966 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ United States | ALGOL 60 with extensions to permit user defined extensions |
| DIAMAG | ⊕ 1966 | ↓ ↑ ⊕ On-Line | ⊕ True ALGOL60s | ⊕ International | interactive extension of ALGOL |
| DMALGOL | ⊕ 1966 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ United States | ALGOL with data extensions |
| UNIVAC 1108 ALGOL | ⊕ 1966 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ Norway | |
| Wisconsin Algol | ⊕ 1966 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ United States |