December Communication Inc.

Web based communications company. Offers publication, presentations and consulting. Includes Computer-Mediated Communication Magazine (CMM) archives and resources.

Decuma

State-of-the-art solutions for natural on-line handwriting recognition. Located in Lund, Sweden.

Diamond Bullet Design

Web site design, user interface design, plus accessibility and usability evaluation services. Located in Michigan, USA.

Direct Perception LLC

Specializes in customer-centered product and service innovation. Includes links.

Dreamstep Design

User Centered approach to interface analysis and design.

Drew Bamford

Offers hardware and software user experience design. California and Washington, USA.

E-netMedia

Provides usability testing and customer experience studies for Interactive Web and wireless technology. Located in the UK.

Elemental Usability

Specialising in usability and accessibility testing, information architecture and brand web design throughout Northern Ireland and the UK.

ELEVEN Consulting

ELEVEN helps companies determine product strengths and weaknesses, and gives specific, blueprint-level guidance on how they can be improved. Located in California, USA.

Emma Jane Consulting

Offers web and interface design plus user studies.

Enervision Media

Provides analysis and designs interactive systems and interfaces for usability across all technology platforms. Located in New York, USA.

Enflexion

Australia-based consulting group specialising in eBusiness usability and accessibility.

ePerformance Consulting

Consulting services covering usability, information architecture, user experience design, search engine optimisation and complete website design. Located in the UK.

Ergosoft Laboratories

Bases information architecture and interface design on user data and continuous usability testing. Located in Texas, USA.

Evan Media

Creation of user-centered interface designs, websites and custom web applications for small to mid-size businesses. Located in California, USA.

Expert InSite, Inc.

Offering web usability, accessibility, and design services to small and mid-sized businesses. Located in Massachusetts, USA.

EyeTracking

Eye tracking technology to test users' responses to websites and other promotional material. Located in California, USA.

Ferguson, Louise

Consulting services to research, design, and evaluate interactive products. Specialist in medical usability, wireless systems and complex collaborative environments. Located in the UK.

Filament Group

Designs software and websites, provides market analysis and training, and works with rich media and wireless technologies. Located in Massachusetts, USA.

Fission Interactive

A team of designers, programmers and usability specialists from Nortel Networks' former human factors group offer web design and usability evaluations. Located in Canada.