Consulting and research in human factors, ergonomics, usability and safety in product and system design from California, USA. http://www.beta-research.com/
Offers a Logical User Centered Interaction Design (LUCID) Framework, a methodology for managing the design and testing of the software user interface. Located in New Jersey, USA. http://www.cognetics.com/
Software design, programming, documentation, and review. White papers and other collaterals. Web site design and writing. Located in California, USA. http://www.sprez.com/
Offers services to study user behaviour and apply results to create functional and usable user interfaces. Located in the UK. http://www.instrata.co.uk/
Helps corporations achieve specific business results by providing research, and a user-centred approach to the design and use of digital technologies. Located in the United Kingdom. http://www.amber-light.co.uk/
Consulting firm specializing in customer-focused information design and interaction design of media, products and tools. Located in Belgium. http://www.namahn.com/
Researcher at the University of Eindhoven, Netherlands, in human-computer interaction. Offers consulting in user experience and trust, including aspects of e-commerce system design. http://www.ecommuse.com/
Interactive application development and design consultancy focused on crafting effective Web experiences. Located in South Carolina, USA. http://www.truematter.com