| ASPOL | ⊕ 1973 | ⊕ United States | |||
| BASCMP | ⊕ 1973 | ⊕ United States | |||
| BEDSOCS | ⊕ 1973 | ⊕ Process interaction | ⊕ United Kingdom | ||
| CDLM | ⊕ 1973 | ⊕ HDLs | ⊕ United Kingdom | Manchester CDL | |
| CELLSIM | ⊕ 1973 | ⊕ Systems | ⊕ United States | Cell population simulation | |
| COMSKEE | ⊕ 1973 | ⊕ Text analysis | ⊕ Germany | String analysis language | |
| DBTG | ⊕ 1973 | ⊕ United States | |||
| DETOL | ⊕ 1973 | ⊕ External systems testing | Test control language | ||
| DMAD | ⊕ 1973 | ⊕ United States | |||
| DSDML | ⊕ 1973 | ||||
| File Composition | ⊕ 1973 | ||||
| FLUB | ⊕ 1973 | ⊕ Symbolic assemblers | ⊕ United States | Assembler for abstract machine | |
| FOL | ⊕ 1973 | ⊕ United States | |||
| FOSIL | ⊕ 1973 | ⊕ Command systems | ⊕ United States | Portable job control language | |
| glue | ⊕ 1973 | ⊕ United Kingdom | |||
| grok | ⊕ 1973 | ⊕ Denmark | |||
| GSL | ⊕ 1973 | ⊕ Event scheduling | Generalized Simulation Language | ||
| HELP | ⊕ 1973 | ⊕ Macros | ⊕ United States | FLIP in WISP | |
| LIS | ⊕ 1973 | ⊕ Wirth Algols | ⊕ France | Langage Implementation Systeme - protoAda | |
| OL/2 | ⊕ 1973 | ⊕ United States | |||
| PL/EXUS | ⊕ 1973 | ⊕ XPLs | ⊕ United States | USer-extensible XPL | |
| POPCORN | ⊕ 1973 | ⊕ United Kingdom | |||
| SDL | ⊕ 1973 | Burroughs Software Development Language | |||
| SETS | ⊕ 1973 | ||||
| SIMCMP | ⊕ 1973 | ⊕ United States | |||
| SITBOL | ⊕ 1973 | ⊕ United States | |||
| SPECL | ⊕ 1973 | ⊕ United States | |||
| SPIL | ⊕ 1973 | ⊕ United States | |||
| TBLTRN | ⊕ 1973 | ⊕ United States | |||
| WFL | ⊕ 1973 |