kêrn - Kern is a user research, usability testing and innovation consulting company. Based in Hyderabad, India. Bolt | Peters - A user-centered design firm specializing in remote usability testing and ethnographic research, based in California, USA. Breakthrough Usability, Inc. - User performance testing services, based in Florida, USA. HT Consulting - Provides usability assessment of web sites, software and computer-related hardware, based in California, USA. First Insights - Conducts usability testing and qualitative market research, based in New York, USA. Experience Dynamics - Professional usability and user centered design consultancy based in Oregon, USA. Peak Usability - User experience and usability consultancy based in Brisbane, Queensland, Australia. TandemSeven - Design and usability services covering the full application development lifecycle, based in the USA. Interface IQ - Independent specialist usability, accessibility and information architecture consultancy based in Northern Ireland. MicroUsability - User experience testing, consulting and design. Offices in Singapore, Malaysia, Vancouver and the United Arab Emirates. UsabilityReviews - Offers website optimization services, based in Ontario, Canada. Performance by Design - Provides usability testing and design enhancement services. Includes a description of services, company profile, and links to usability resources. Vancouver, British Columbia, Canada. MeasuringU - Usability and user experience consultancy that focuses on measurable results from usability tests. Based in Denver, Colorado. Baymard Institute - Consultancy that provides usability testing and research services for E-Commerce. Based in Copenhagen, Denmark. Loop 11 - An online tool that allows users to create, run and analyze their own usability tests. UserZoom - A cloud-based solution for online usability testing and UX research. Adage Usability - Providing usability services such as heuristic evaluation and usability testing, based in Finland. UserTesting - An online usability testing tool that allows to get videos of real people speaking their thoughts as they use websites, mobile apps and prototypes. UX Fellows - A network of agencies around the world that offer international usability testing services. UXPA Consultants Directory - The User Experience Professionals Association (UXPA) directory of consultants, offering usability testing services. UsabilityNet Consultancy List - Worldwide list of local consultants providing usability testing services. GfK: User Experience - User experience consulting firm that specializes in usability testing, user experience research and design, based in Illinois, USA. Don Hameluck Usability Consulting Inc. - Usability services and user-interface design for business applications / Internet, based in Toronto, Canada. Mercedes Sanchez Usabilidade - Offers usability testing and user experience research in Brazil and Latin America, helping global companies to design products and applications that are enjoyable and easy to use for local customers. TryMyUI - Online remote usability testing service. The UX Agency - User experience research, strategy and design services for website, application or software. Based in UK. Usabilla - A website user testing tool that allows customers to create, execute, and analyze user tests. Normal Modes - Normal Modes provides remote usability testing services. Usecon - Consulting firm focused on usability testing, user experience research, user insights & user interface design, based in Vienna/Austria. The Usability People - A company providing usability testing and interface design services to businesses of all shapes and sizes. UX Team - User experience design firm based in Secaucus, New Jersey, USA. Userfeel - Remote usability testing services. Techved Consulting - Offers user experience design and usability consultancy services for websites, mobile/ipad apps and software applications, based in Mumbai, India. UserBob - Provides remote user testing of websites and apps. Uservalue - Consultancy that provides usability testing and user experience optimization services. Based in Switzerland.