| ABCL/c+ | ⊕ 1988 | ↓ ↑ ⊕ Experimental and other | ⊕ CPL, BCPL and B | ⊕ Japan | Concurrent actor language based on C |
| ABCL/R | ⊕ 1988 | ↓ ↑ ⊕ Experimental and other | ⊕ Actor | ⊕ Japan | Object-Based Concurrent Language |
| ADAM | ⊕ 1988 | ⊕ Japan | |||
| AMLOG | ⊕ 1988 | ↓ ↑ ⊕ Specialised Languages | ⊕ Japan | Equational logic programming language | |
| Andorra | ⊕ 1988 | ↓ ↑ ⊕ Specialised Languages | ⊕ Japan | Hybrid of Parlog and Aurora | |
| ARTS/C | ⊕ 1988 | ↓ ↑ ⊕ Experimental and other | ⊕ CPL, BCPL and B | ⊕ Japan | |
| A'UM | ⊕ 1988 | ⊕ Japan | |||
| CAL | ⊕ 1988 | ⊕ Japan | ICOT Constraint Logic Programming Language | ||
| CLiC | ⊕ 1988 | ↓ ↑ ⊕ String and List Processing | ⊕ Strict evaluation LISPs | ⊕ Japan | |
| EusLisp | ⊕ 1988 | ↓ ↑ ⊕ Specialised Languages | ⊕ Lazy Evaluation LISPs | ⊕ Japan | geometric modeler in Lisp for Robotics and CAD |
| Fleng | ⊕ 1988 | ⊕ Japan | |||
| HISP | ⊕ 1988 | ⊕ Japan | Algebraic Specifcation language | ||
| KL1 | ⊕ 1988 | ↓ ↑ ⊕ Specialised Languages | ⊕ Japan | Kernel Language 1 | |
| MENDEL/88 | ⊕ 1988 | ⊕ Japan | |||
| Mind | ⊕ 1988 | ⊕ Japan | |||
| PDL | ⊕ 1988 | ↓ ↑ ⊕ Specialised Languages | ⊕ Japan | Process Description Language | |
| SAD | ⊕ 1988 | ↓ ↑ ⊕ Specialised Languages | ⊕ Japan | Scripting language for the SAD facility at KEK | |
| SOL | ⊕ 1988 | ⊕ Japan | Set oriented language | ||
| Stella | ⊕ 1988 | ⊕ Japan |