Corporate Solutions Consulting Provides usability services including web site evaluations and design. Located in the UK. http://www.consult-me.co.uk

Meleniak Offering usability evaluation, accessibility advice, and web design. Located in the United Kingdom. http://www.meleniak.com/

HCI Professional Services Offers consulting internationally with companies interested in making their Web based and desktop applications more effective through improved usability and usage-centered design. http://www.harrisondesign.com

Interface Consult Offers web design services and features usability testing facilities. Located in Austria. http://www.usability.at/e/

British HCI Group Consultancy Listing Listing of UK academic and commercial consultants in Human-Computer Interaction, providing initial contact information for prospective clients seeking experts within this field. http://www.visualize.uk.com/bcshci/conslist/

Constantine & Lockwood, Ltd. Supports usage-centered design for more usable software-based products through training, design, evaluation, and consulting services. Located in Massachusetts, USA. http://www.foruse.com/

GUIguy User interface design and usability consulting for Windows applications and web sites, for business productivity. http://www.guiguy.com/

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. http://www.humansys.com

Ariel Performance Centered Systems, Inc. A management consulting and software development company that has expertise with all forms of Electronic Performance Support Systems (EPSS). Located in Ohio, USA. http://www.arielpcs.com/

Netinspire Offers services in the areas of interaction design, prototyping, information architecture, and usability to create a remarkable user experience. Located in Oregon, USA. http://www.netinspire.com

IBM's Ease of Use Resources on usability management include articles, conferences, tools for User Centred Design. http://www-3.ibm.com/ibm/easy/eou_ext.nsf/publish/558

Tech-bridge Pradeep Henry's offshore user-experience driven approach to the design/evaluation of websites and products. http://www.tech-bridge.com/

Adducive 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. http://www.adducive.com/

Beta Research, Inc. Consulting and research in human factors, ergonomics, usability and safety in product and system design from California, USA. http://www.beta-research.com/

Frontend Frontend provides user-centred interface solutions for online developments and software applications. Includes the Usability Infocentre and User News newsletter. Located in Ireland. http://www.frontend.com

Lavawood Creative Internet consulting firm specializing in developing usable e-commerce solutions, internet strategy, web marketing, and web design for small-to-medium businesses. Located in Colorado, USA. http://www.lavawood.com

LukeW Interface Designs Specializes in the visual, interface, and interaction design of web-based applications and identities. Located in Illinois, USA. http://www.lukew.com/

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. http://www.iconmedialab.com/

Creative Good Offers to improve customer experience. Located in New York, USA. http://www.creativegood.com

True Matter, LLC Interactive application development and design consultancy focused on crafting effective Web experiences. Located in South Carolina, USA. http://www.truematter.com