| ABC ALGOL | ⊕ 1973 | ↓ ↑ ⊕ Numerical Scientific | ⊕ True ALGOL60s | ⊕ Netherlands | ALGOL 60 extension for symbolic math |
| ALIAS | ⊕ 1973 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Pascals | ⊕ Netherlands | Bliss variant |
| AUT-QE | ⊕ 1973 | ↓ ↑ ⊕ Specialised Languages | ⊕ Netherlands | ||
| CHIEF | ⊕ 1973 | ↓ ↑ ⊕ Experimental and other | ⊕ Netherlands | ||
| CLAG | ⊕ 1973 | ↓ ↑ ⊕ On-Line | ⊕ Process interaction | ⊕ Netherlands | Online simulation system |