| Brooker Autocode | ⊕ 1953 | ↓ ↑ ⊕ Multi-purpose | ⊕ Early Autocodes | ⊕ United Kingdom | Machester Mark I autocode |
| EDSAC Autocode | ⊕ 1953 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Early Autocodes | ⊕ United Kingdom | Autocode for EDSAC 2 |
| Nicholas coding scheme | ⊕ 1953 | ↓ ↑ ⊕ Excluded from Sammet | ⊕ Early Autocodes | ⊕ United Kingdom | Autocode for the Nicholas system |