Avenger  
   Engineering services, and show control hardware and software for the entertainment industry. Belgium.
   http://www.avengersys.com/

Dataton AB  
   Developer and manufacturer of audiovisual show control products for the high impact presentation market. Based in Sweden with worldwide distribution.
   http://www.dataton.se/

Maris Ltd.  
   Show, lighting and motion base control, digital audio replay equipment, time code equipment, EMC (CE) testing, control systems project support for theme parks, theatres, visitors centers, and museums.
   http://www.maris.co.uk

Alcorn McBride  
   Manufacturer of many show control products for theme parks and attractions. Serial, parallel, MIDI, SMPTE, and ethernet.
   http://www.alcorn.com/products/showcontrol/index.html

Birket Engineering, Inc.  
   Control systems integrator specializing in the design, fabrication, programming, and installation of control systems for entertainment and industrial applications.
   http://www.birket.com/

Interactive Controls Pty Ltd.  
   Designer, developer and programmer of control systems for events, installations, museums, control rooms, exhibitions and theme parks.
   http://www.interactivecontrols.com.au

AAAV Systems Ltd.  
   Manufacture, programming and servicing of animation, automation and audiovisual systems for entertainment and industrial applications.
   http://www.aaavsystems.co.uk/