| Avon | ⊕ 1987 | ↓ ↑ ⊕ Experimental and other | Single-assignment | ⊕ United States | |
| Base Language | ⊕ 1968 | ↓ ↑ ⊕ Experimental and other | Single-assignment | ⊕ United States | |
| Compel | ⊕ 1968 | ↓ ↑ ⊕ Specialised Languages | Single-assignment | ⊕ United States | Single assignment language |
| DDN | ⊕ 1974 | ↓ ↑ ⊕ Experimental and other | Single-assignment | ⊕ United States | Data-Driven Nets |
| LAU | ⊕ 1976 | ↓ ↑ ⊕ Specialised Languages | Single-assignment | ⊕ France | Single assignment language |
| LUCID | ⊕ 1975 | ↓ ↑ ⊕ Experimental and other | Single-assignment | ⊕ Canada | dataflow language |
| sysLucid | ⊕ 1994 | ↓ ↑ ⊕ Experimental and other | Single-assignment | ⊕ Canada | Systolic functional Lucid |