| Adaytum Home Page: A company doing big things in APL |
| APL Borealis: The pre-eminent source for APL products and services in Canada. |
| APL Consultants and Software: All about and around the programming language APL. |
| Causeway Graphical Systems Ltd.: Produces a range of graphical and reporting tools. Includes details of collaborations, products, support, and demos. |
| CoherentSystems: CoSy: Computerized living with the APL-based CoSy NoteComputer. Free downloads! |
| Customized Applications, Inc.: Customized applications and programming services, including rapid application development in APL. |
| Dinosoft Oy: A strong APL site. Interest is limited unless the reader understands Finnish. |
| Lescasse Consulting: French APL based company. Proudly announce a form "driven by an APL+Win Web Server". |
| Optima Systems: A UK company specialising in bespoke APL software. |
| Rex Swain: Independent consultant specializing in APL with over 25 years professional experience. |
| Snake Island Research, Inc.: Software development and consulting firm specializing in solving APL performance problems and training programmers. Technical Report on APEX APL compiler. APL (and related compiler/parallel) BiBTeX bibliographic files. APL fonts for LaTeX. |
| Vector's APL Product Guide: Index of Companies and Organisations |
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