| &-Prolog | ⊕ 1990 | ↓ ↑ ⊕ String and List Processing | ⊕ Horn clause | ⊕ Spain | |
| Avalon/Common LISP | ⊕ 1990 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | |
| es | ⊕ 1990 | ↓ ↑ ⊕ String and List Processing | ⊕ United States | Expert System | |
| Gambit | ⊕ 1990 | ↓ ↑ ⊕ String and List Processing | ⊕ United States | Scheme variant | |
| Glisp | ⊕ 1990 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | Alternate syntaxes for Common Lisp |
| LindaLISP | ⊕ 1990 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United Kingdom | |
| LISP O2 | ⊕ 1990 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ France | |
| Paralation LISP | ⊕ 1990 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | |
| Perl | ⊕ 1990 | ↓ ↑ ⊕ String and List Processing | ⊕ Patterns | ⊕ United States | Pattern-based string manipulation |
| PLisp | ⊕ 1990 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | Pattern Lisp |
| Prolog-2 | ⊕ 1990 | ↓ ↑ ⊕ String and List Processing | ⊕ Horn clause | ⊕ United Kingdom | |
| Shared Prolog | ⊕ 1990 | ↓ ↑ ⊕ String and List Processing | ⊕ Horn clause | ⊕ Italy | |
| XLISP 2 | ⊕ 1990 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States | |
| XLISP-PLUS | ⊕ 1990 | ↓ ↑ ⊕ String and List Processing | ⊕ Lazy Evaluation LISPs | ⊕ United States |