Specialized in user-friendly Internet interface. Includes online articles. Located in Belgium, website also in Dutch.

Consultants to help you improve the user friendliness of your web site, located in Florida, USA.

Provides usability services as well as site design and site creation services for web based companies.

A User Experience design and consulting firm that unites theory and practice to advance the art of user experience design while helping clients make better business decisions. Located in California, USA.

Software user interface design and rapid production services including prototypes for telephone, handheld, and desktop systems. The website describes services offered and tips for effective user interface development. Located in California, USA.

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.

Provides guidance in collaborative, user-centered design, ethnographic research, and multidisciplinary collaboration. Located in California, USA.

Design, usability and consultancy. Located in the United Kingdom.

Providing innovative research and applied design for government, industry, medical, and transportation fields. Locations in Washington DC and Massachusetts, USA.

A management consulting and software development company that has expertise with all forms of Electronic Performance Support Systems (EPSS). Located in Ohio, USA.

Consulting and research in human factors, ergonomics, usability and safety in product and system design from California, USA.

A website and CDROM publishing company specializing in human factors for interface design, usability and usage studies, navigation and information architecture - directly for clients or through larger companies. Located in Canada.

User experience consulting. Including articles and news about Web usability. From Denmark.

Listing of UK academic and commercial consultants in Human-Computer Interaction, providing initial contact information for prospective clients seeking experts within this field.

Experts in user interface design for applications and other web-based products. Located in California, USA.

Usability and User Interface Designers. Located in New York, USA.

Offers services and research in the field of usability engineering and user interface design in Vienna Austria.

A user experience consultancy offering research, testing and design expertise to develop interactive applications. Located in Illinois, USA.

Provides research, workshops, and consulting for improving the user experience of web sites and interactive applications. Located in New York, USA.

A software development and professional services organization with expertise in graphical user interface (GUI) design and usability. Located in California, USA.

Offers a tool to record the position of every click on a web page, creating a virtual heat map of visitor activity. Includes details of benefits and how it works, together with a free demonstration.

A user interface solutions company helping people work and learn. Creates new interfaces for legacy systems and developes new internet applications.

Supports usage-centered design for more usable software-based products through training, design, evaluation, and consulting services. Located in Massachusetts, USA.

Offers a range of goal-directed services that can be used to create and improve interactive solutions from California, USA.

Provides usability services including web site evaluations and design. Located in the UK.

Specializes in customer experience, visual design, information architecture, and strategy. Located in New York, USA.

Texas design consultantancy specializing in user interface and interaction design, visual communication, and usability for products requiring human-computer interaction.

Offers to improve customer experience. Located in New York, USA.

Helps businesses sharpen their websites. Provider of website analysis, reality testing, training seminars, and consulting services. Located in Illinois, USA.

Provides user interface design, user centered design, and usability services for software and hardware developers. Located in Canada.

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

User interface design, industrial design, and usability assessment and testing services. Services, skills and company information.

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

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

User Centered approach to interface analysis and design.

Usability Consulting firm based in Leighton Buzzard, UK. Focuses include making web sites and particularly web forms easier to use.

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

Offers web and interface design plus user studies.

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

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

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

User experience consulting services focused on usability engineering, information architecture, and interface design. Located in California.

A network of technology centres across Europe to help companies enhance the usability of their products and systems.

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

Ethnographic research leading to the creation of useful and desirable user experiences. Located in the United Kingdom.

Washington, DC based information architecture and user experience consultancy for websites and software.

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

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

Evolving technology and delivering a more compelling and dynamic digital experience to end users online and offline. Based in California, USA.

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

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

This site aims to help flash developers create more usable content using examples and tips.

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.

Offers consulting services to research, design, and evaluate interactive products. They will either design a solution for you, or help you to design the most user friendly one yourselves. Located in the UK.

Examining the online sales process from the customer's point of view. Located in England.

Information about web solutions services, includes a client list and career information.

Usability Consultancy committed to designing and evaluating successful and effective Windows Applications and Web Sites. Offering the full range of Usability Services. Located in the United Kingdom.

User interface design and usability consulting for Windows applications and web sites, for business productivity.

Offers usability evaluations, user-centered front-ends and software product design, training. Includes a case study and a compilation of visual illusions.

Mark Hurst and Creative Good present white papers on customer and user experience.

Representation of the disciplines of information architecture, business analysis and usability, as well as contact information and a resume. Located in Massachusetts, USA.

Award-winning web site development, user interface, user experience consulting and communication design. Includes short articles. Located in California, USA.

Provides website design and development solutions for internet, extranet, intranet, multimedia and new media projects.

Internet and interface development. specialise in HCI, usability, architecture, systems integration and e-business. Offer a number of white papers. Located in California, USA.

Provides user interface design services, including usability evaluations and education. Located in Canada.

Ensuring usability and systems consistency through software ergonomics, human factors science and design considerations. Located in Iowa, USA.

User-centered user interface design, user documentation and training services. Belgium

Usability consulting for web, software and hardware products. Background in Human Factors. Located in Texas, USA.

Human factors testing and consulting firm with expertise in Web design, and consumer electronics. Located in North Carolina, USA.

Specializes in Human Factors and Applied Ergonomics. A consultant company involved in web site analysis, HCI, task analysis and modeling. Located in Canada.

Specializes in applying human factors analysis to usability engineering, testing, and interface design. Located in Washington.

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.

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.

Offering user experience research services and consultation in usability for the products of the digital world, especially wireless ones. Located in Finland.

Specializes in site and user interface development, web consulting, and training.

Provides design, training, and market information services. Located in Massachusetts, USA.

Offers usability consulting. Includes resources, articles and courses. Located in Melbourne, Australia.

Offers services to study user behaviour and apply results to create functional and usable user interfaces. Located in the UK.

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.

Sim D'Hertefelt offers services for designing usable interactive systems, includes articles. Located in Belgium.

Offers Web design and usability testing services.

Offers web design services and features usability testing facilities. Located in Austria.

Tests and makes recommendations on how to improve commercial websites. Located in Tucson, Arizona, USA.

Consulting firm with focus on simplicity and usability. Located in Canada.

Consulting services include business analysis, information architecture, user interface design, and usability evaluations. Located in British Columbia, Canada.

Interface design and usability consulting firm which applies user centered design strategies to help businesses improve the user experience of their Web sites and consumer products. Located in California, USA.

KeyLabs is an independent testing lab providing web site application performance testing.

Information architecture, interaction design, technical writing, user centered design, and usability evaluation. Located in Pennsylvania, USA.

Offering consulting services in most aspects of interaction design. Located in California, USA.

Provides user experience research, user-centered interactive design and usability evaluation. Offices in Ohio and Colorado, USA.

Offers user experience design plus usability and product strategy consulting. Also other services concerning interactive products.

Specializes in the visual, interface, and interaction design of web-based applications and identities. Located in Illinois, USA.

Offers user centred research and design services, specializing in concept design, usability, accessibility product evaluations, and training. Located in Ottawa, Canada.

Consulting services concerning User Interface Design and Usability Engineering. Located in New York, USA.

User interface designer and illustrator for online and offline media in Texas, USA.

Offering usability evaluation, accessibility advice, and web design. Located in the United Kingdom.

Specializing in interface design, usability testing, site development, database architecture, and ecommerce sites. Located in Pennsylvania, USA.

Provides user-oriented product and interface design services for custom software and embedded systems. Located in Tennessee, USA.

Helps clients create, renew and strengthen their user interaction to enhance the user experience for software and websites. Includes articles and other resources.

Specialized in user-centered design, prototyping, support of the development process, and iterative test and refine of the final product. Includes articles by Jim Miller. Located in California, USA.

Consulting firm specializing in customer-focused information design and interaction design of media, products and tools. Located in Belgium.

Research and IT consulting expertise in the assessment of information systems for: ERP, CRM, CMS, DBMS. Located in Colorado, USA.

Provides consulting, research, and training in usability evaluation and interaction design. Located in Ohio, USA.

A web usability and solutions consultancy, offering user-centered ergonomic design and web development. Located in the UK.

Provides an online suite of website evaluation tools to help businesses understand and manage customer intentions, attitudes, and behavior. Headquartered in California, USA.

A customer driven, products, process and innovation solutions provider. Based in Ontario, Canada.

Consulting agency offering to enhance the user experience. Includes news, events and publications. Located in California, USA.

Offering user-centered interface design, auditing, and prototyping solutions for online and MS Windows applications. Located in Ireland.

Offers services concerning accessibility and usability. Provides web development and training. Located in Ireland

Offers fixed and portable usability labs and logging software. Located in Illinois, USA.

Solutions for user interface design and human factors engineering. Located in Israel.

Offers user-centred design services for product development, including usability testing, survey research, user-centered design and focus groups. Located in New York, USA.

Offers services in interaction design and software engineering. Located in California, USA.

User interface design, usability testing and research to improve user experience for websites, software, and other products. Locate in the United Kingdom.

Web usability and accessibility consultancy. Based in the UK.

Interface Design consultation for browser-based and traditional software as well as interactiveTV.

Offering information architecture, user experience and usability evaluation services. Located in Melbourne, Australia.

Information architect and GUI consultant, specializing in information architecture, user testing, user experience, and GUI design. Located in New Jersey, USA.

Consultants providing information architecture, visual interface design, icons, and usability testing. Located in California and Hawaii, USA.

Silicon Valley based computer human interaction consultancy focusing on practical usability testing and interface design. Located in California, USA.

Usability testing, customer research, and product design services. Located in Washington, USA.

Consulting services including 508 compliance audits, accessibility redesign and retrofit, testing and training. Located in California.

London, UK based independent usability consultants, covering websites, interactive TV, interactive appliances and mobile Internet devices.

Interaction Designer

Provides services in Web Design, Information Architecture, specializing in web usability. Located in Canada.

User interface design consultancy creating online, desktop, and handheld products and services. California, United States.

Usability and prototyping consultant focused on helping customers recognize, prioritize, and solve usability problems. Located in New Hampshire, USA.

Provides a wide range of usability consulting services including interface design, user testing, focus groups, heuristic evaluations and onsite training.

Usability consultant specialized in user centered design, including computer interaction, and usability engineering. Located in Rotterdam, Netherlands.

Usability testing service. Offering independent review and analysis, and testing of websites using actual users.

Software design, programming, documentation, and review. White papers and other collaterals. Web site design and writing. Located in California, USA.

Technology for persons with special needs and access for everyone.

Specialists in designing usable, useful and aesthetic interfaces for interactive products, ranging from software applications to handheld devices and medical equipment. Located in California, USA.

User-centered design and development services, including object-oriented design and UML, usability evaluation and training. Located in Oxford, UK.

Customer research, information architecture and design, and usability evaluation of technology products and websites. Offices in Michigan, California, and New York, USA.

Seasoned interaction designer: documentation, graphics, wireframe models, best practices and information architecture. A unique combination of business understanding, technical acumen, creative talent and strategic insight. Experienced in transactional systems, financial services. Servicing Northern New Jersey and New York City, USA.

Specializing in the conceptualization, design, development, evaluation, review and assessment of human-computer interfaces, especially web-based applications. Located in California, USA.

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.

Specializing in user interface design, ethnography, usability evaluations, and user support systems. Located in Georgia, USA.

Specialists in website, wireless, Intranet, digital interactive TV and software usability testing. Includes a glossary and links. Located in the United Kingdom.

Experienced consultants specializing in the area of user interface design and usability. Located in California, USA.

Internet consultancy committed to helping Global 2000 clients leverage customer experience as a competitive advantage and driver of profits. Located in New York City.

Offers services to create meaningful digital product development and user experience. Located in London, UK.

Interactive application development and design consultancy focused on crafting effective Web experiences. Located in South Carolina, USA.

Consultants who design user experience in the shape of graphical user interfaces on the internet and in the wireless world. Located in California, USA.

A consulting firm in Massachusetts.

Internet effectiveness consultancy offering services including web site evaluations and search engine optimization.

A usability consulting and contracting firm specializing in designing the user experience with user-centered methodologies.

Strategic Web design consultancy which uses user centred design and market research techniques. Located in the United Kingdom.

Independent usability and user-centred design consultancy, based in Stockholm, Sweden.

Provider of usability testing and research for websites, consumer electronics, software and hardware products. Located in Texas, USA.

Design of custom usability testing environments, including stationary labs and portable labs. Located Georgia, USA.

Offering usability and design consultancy to the e-commerce and client server markets in Europe. Located in London, United Kingdom.

Offers a range of services with a focus on user interfaces for web and non-web applications. Services available throughout the Asia Pacific. Located in Australia.

The portfolio and resume of Kyle Pero, a usability analyst, interaction designer, and information architect consultant based in Pennsylvania, USA.

Boston Web firm offering information architecture, interaction design, usability consulting, and copywriting.

Provider of user experience services utilizing usability testing, focus groups, market research, training and documentation. Located in California, Georgia, and Illinois, USA.

Specializes in usability engineering, graphic design and software engineering, Located in Germany (Munich, Stuttgart, Mannheim).

Provides usability consulting, research, training and conferences. Located in Massachusetts, United States.

User interface design and usability evaluation consultancy. Located in London, United Kingdom.

Consulting in website usability, training and testing.

Provides web site design and evaluation services for small and mid-sized businesses. Focus on usability, customer-focused content and clean design. Based in Renton, Washington, United States.

Consulting firm offering Web optimization services and information. Located in Michigan, USA.

Offers service for designing online-help system, user documentation and translation. Located in Oslo, Norway.

Offers usability testing, UI design and customer research services. Located in Washington, USA.

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

Offers user research and services for the complete design and development process including usability testing. Based in London, United Kingdom.

Offers user interface design services at all phases of application development, including working prototypes for web and interactive multimedia applications. Based in San Diego, California, United States.

Offers customized user experience and branding solutions. Notable clients include Macromedia and WebEx.

Website usability reports and email support. Located in New York, USA.