User interface design, usability testing and research to improve user experience for websites, software, and other products. Locate in the United Kingdom. http://www.pureinterface.com/
Internet effectiveness consultancy offers a range of services including web site evaluations and search engine optimization. Located in Ontario, Canada. http://www.u-cwebs.com/
Helps companies determine product strengths and weaknesses, and gives specific, blueprint-level guidance on how they can be improved. Located in California, USA. http://www.elevenconsulting.com/
Helps businesses sharpen their websites. Provider of website analysis, reality testing, training seminars, and consulting services. Located in Illinois, USA. http://www.crystalpointconsulting.com/
Offering user experience research services and consultation in usability for the products of the digital world, especially wireless ones. Located in Finland. http://www.ideanresearch.com/