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.

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.

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.

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.