SiteTechnician
Website testing and diagnostic services to identify usability problems and improve the user experience. Located in Colorado, USA.
Siteusability.com
Providing site audits and reviews, search engine placement reports, and specialised usability services for web sites. Located in the UK.
theSiteDoctor.com
Provides website evaulations and usability testing.
uLab Participatory Design Associates
Provides in-person and remote usability testing, field studies, customer interviews, task analysis, and participatory design for software, web, and consumer product development. Berkeley, CA, USA.
Usability Reviews
Offers reviews and testing, with a focus on e-commerce. Based in Washington, USA.
UsabilityEffect
Web site usability testing, newsletter conversion checkups, shopping cart functionality & self-study courses. Located in PA.
UsabilityReviews.com
Offers Website optimization services. Located in Ontario, Canada.
User Vision
Offers usability and accessibility consultancy services for web sites, software and products. Based in Edinburgh, Scotland.
UserMetrics
Offers to test web sites on people and applies insights from cognitive science for usability problems. Located in the United Kingdom.
VisitorFriendly.com
Assesses the visitor friendliness of your website, using real internet customers as paid reviewers. Located in the UK.
Web Critiques
Providing web critiques highlighting the good and bad points about a web site as well as techniques to fix them. Located in England.
Web Scrutineer
Provides website testing for businesses and web developers.
Web Usability, the Rightway
Providing web site usability evaluation services. Located in Pennsylvania, USA.
WebCriteria
Provides services that objectively evaluate and compare web sites. The behavior-based SiteProfile provides automated services that measures and compares website usability. Located in Oregon, USA.
WebCritica
Offers services to evaluate web site usability and gives recommendations how to make sites easier to use.
Adage
Providing usability services such as heuristic evaluation and usability testing. Located in Finland.
Afflatus Inc
Evaluation of usability, information architecture, and the accessibility of sites. Located in Dubai, United Arab Emirates.
Alertus
Automated feedback system for collecting Web usability and performance data. Located in Washington, USA.
AlliedTesting
An outsourcing company specialising in testing of on-line applications and web sites.
AltTags.org
Website usability and accessibility consultants.
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