GUIguy
User interface design and usability consulting for Windows applications and web sites, for business productivity.
Hastings Research
Internet and interface development. specialise in HCI, usability, architecture, systems integration and e-business. Offer a number of white papers. Located in California, USA.
Hibbitts, Paul D.
Provides user interface design services, including usability evaluations and education. Located in Canada.
The Hirsch Group
Specializing in the conceptualization, design, development, evaluation, review and assessment of human-computer interfaces, especially web-based applications. Located in California, USA.
The Hiser Group
Committed to liberating technology from the technologists and letting people play with it instead. Focus on usability and accessibility of interface design. Located in Australia.
Human Factors International, Inc.
Ensuring usability and systems consistency through software ergonomics, human factors science and design considerations. Located in Iowa, USA.
Human Interface Group
User-centered user interface design, user documentation and training services. Belgium
Human Interfaces, Inc
Usability consulting for web, software and hardware products. Background in Human Factors. Located in Texas, USA.
HumanCentric Technologies, Inc.
Human factors testing and consulting firm with expertise in Web design, and consumer electronics. Located in North Carolina, USA.
Humansystems Inc.
Specializes in Human Factors and Applied Ergonomics. A consultant company involved in web site analysis, HCI, task analysis and modeling. Located in Canada.
Hypercerulean Inc.
Specializes in applying human factors analysis to usability engineering, testing, and interface design. Located in Washington.
IBM's Ease of Use
Resources on usability management include articles, conferences, tools for User Centred Design.
Icon Medialab
Offers a wide range of services with a focus on the user experience in a wide range of web-based applications. This internationally oriented company has locations in Europe and North America.
Ideactif
Offers consulting services to provide user-centred design, i.e. a combination of usability, information architecture, communications, marketing and design. Located in Canada. Main site in French.
Idean Research
Offering user experience research services and consultation in usability for the products of the digital world, especially wireless ones. Located in Finland.
IdeasMerchant.com Ltd
Specializes in site and user interface development, web consulting, and training.
Incontext Enterprises
Provides design, training, and market information services. Located in Massachusetts, USA.
Information & Design
Offers usability consulting. Includes resources, articles and courses. Located in Melbourne, Australia.
Instrata
Offers services to study user behaviour and apply results to create functional and usable user interfaces. Located in the UK.
Interacta Design Oy
Specializes in goal-based user interface design and field studies to find out the users' goals. Provides usability assessment, e.g. expert reviews and usability testing. Located in Finland.
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