RISC OS in action
- Introduces RISC OS and its user interface to people who have never seen it.
- http://www.khantazi.org/Power/Acorn/RISCOS.html

Dave Cooper's Composition Backdrops
- Hundreds of backdrop/wallpaper images of male/female stars composed with !Compo. From Jenny Agutter through to Cathrine Zeta-Jones; Richard Dean Anderson through James Stewart. Also sci-fi, cult TV and Dr Who.
- http://myweb.tiscali.co.uk/davecooper/compo.html

Lutes by Arthur Robb
- Lute Maker (Luthier) who uses RISC OS computers in many aspects of his business.
- http://www.art-robb.co.uk/

Timebus Travel
- Timebus Travel provides traditional red London buses for hire in London, England and the surrounding Home Counties. They are RISC OS users.
- http://www.timebus.co.uk/

Applied Photophysics
- Manufacturer of stopped-flow and other kinetic absorption, fluorescence and circular dichroism spectrometers.
- http://www.photophysics.com

Annerykiln
- Professional website designers who utilise RISC OS kit.
- http://www.annerykiln.co.uk/

SmoothArtist
- Graphics, backdrops and skins all created using the platform's extensive software.
- http://www.smoothartist.com

Ben Brook Computer Graphics
- Computer graphics and websites designer.
- http://www.ben-brook.co.uk/

House of Mabel
- Specialists in low-cost, high-quality design, especially in the RISC OS arena, but increasingly in the more platform independent arena of Web design.
- http://www.houseofmabel.com/

Fleur Designs
- Produce traditional and modern craft items to order, designed on RISC OS computers. Some items, e.g. modular board games, are available at a fixed price but can be modified to suit. They aim to produce bespoke items at an ordinary price.
- http://www.cartmell.demon.co.uk/

OREGAN : Television Transformed
- Advanced ARM-powered STBs for internet access, and iTV software technologies. All developed from the solid RISC OS foundation.
- http://oregan.net

Astute Graphics
- Specialise in design for the page, web and industry, using RISC OS products extensively.
- http://www.astutegraphics.co.uk/

Arcania
- Offer a wide range of media services and are committed to providing these services in a sustainable manner. Their intention is to power their working environment with electricity generated by our own renewable energy sources.
- http://www.arcania.co.uk/

Highpath Engineering
- UK supplier of specialist engineering, design and technical services Worldwide. Use ProCAD+.
- http://www.highpath.co.uk

Autovalves Engineering (Morgo)
- Develops products for the automotive industry using RISC OS hardware.
- http://www.morgo.co.uk/

X-Ample Technology
- Authors of CueMaster, teleprompter for professional use.
- http://www.xat.nl/

Diocese of Southwark
- Use ProCAD+ on RISC OS for maintaining and improving 400 houses in South London and North East Surrey.
- http://www.dswark.org/

Downland Veterinary Group
- Their group utilises 40 RISC OS machines in the everyday running of the business via their own "Andysoft" Veterinary Management System.
- http://www.downlandvets.co.uk/