AAUG: Association of Acorn User Groups: Information on Acorn and RISC OS user groups worldwide, including contact details, meeting dates, and times. Also includes details of discounts available to members

Aleph One: Aleph One are a registered Acorn developer, best known for producing x86 second processor cards

Castle Technology: Continuing to make and develop computers under the Acorn brand name - as well as the new Iyonix PC - in Framlingham, Suffolk

Stuart Tyrrell Developments: Retail side of AdvantageSix making RISCOS (and compatible) computers. Oldham, Manchester