ASTRAC Ltd - Developers and suppliers of Application System (AS) and Info Centre/Enhanced (ICE), providing Business Intelligence and Management Information systems to major clients world-wide. ASTRAC ICE is written in and links to APL2 and is the recommended successor - http://www.astrac.com/
The Rochester Group, Inc. - An interesting company which lists APL as one of many skills. - http://www.rochgrp.com/
APL Borealis - The pre-eminent supplier of APL products and services in Canada. - http://www.aplborealis.com/
Simcorp - One of the leading European software and consulting groups for the financial industry. - http://www.simcorp.dk/