| ESPL/I | ⊕ 1978 | ↓ ↑ ⊕ Experimental and other | ⊕ United States | ||
| GYVE | ⊕ 1978 | ↓ ↑ ⊕ Experimental and other | ⊕ United States | Concurrent SETL dialect | |
| ICL | ⊕ 1978 | ↓ ↑ ⊕ Experimental and other | ⊕ United States | Language for ambiguous lists | |
| Id | ⊕ 1978 | ↓ ↑ ⊕ Experimental and other | ⊕ United States | Irvine Dataflow |