MicroAPL Ltd - Innovative porting tools and services, and software consulting. Sells APL.68000 for Apple Macintosh. Recently released APLX for Windows, MacOS, Linux and AIX. J Software - Modern high performance, general purpose programming language, ideal for complex analytics and data manipulation. APL inventor Kenneth Iverson formed Iverson Software and works here. Free evaluation download. APL2000 Inc. - Rapid Application Development products and services. Announcements, support. Kx Systems - Makers of Kdb relational database manager extended for timeseries, and K programming development environment. Mission-critical applications are being built in Kdb and K at top-tier financial institutions world-wide. Soliton Associates - Delivers systems and applications software products for IBM/MVS, and now RISC/UNIX platforms, integrated with proprietary and industry-standard middleware. Also a free Linux version. CoSy/K/CoSy - The K.CoSy "noteComputing" environment. An Open vocabulary creating an interactive programming environment for Arthur Whitney's K language. Development of scalable quantitative hierarchical systems as rapidly as the task can be defined. A+ - Morgan Stanley's APL with GUI, system interfaces, callbacks, synchronization among objects, ASCII and/or APL character sets. Manual, history, screenshots, downloads, documents, FAQ, contacts, resources, reviews. [Open Source, GPL] Juggle: J for Unix - Master distribution point for Unix versions of ISI's J system and related issues. Features: bug report database, J Feature Hitlist, CVS repository for official and contributed J code, mailing lists, ISI site mirror. Dyalog Limited - Producers of one of the finest APL interpreters for all versions of Windows and some flavours of UNIX. They have links to an APL webserver producing graphs. IBM APL2 - Features and benefits, system requirements, library, and success stories. APL2C - An extended APL interpreter and compiler. Converts APL functions into portable C source files. Supports nested arrays, APL symbols, and extended style control structures. NARS2000 - An experimental open source APL interpreter that runs natively under Windows (32- and 64-bit versions), and under Linux using Wine. Site includes the latest downloads, documentation and a discussion forum.