Computers Human Computer Interaction Companies and Consultants

Usability Testing (

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Web Accessibility@ (

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176 sites in Companies and Consultants

Abacus Web Usability Save
Consultants to help you improve the user friendliness of your web site, located in Florida, USA.
http://www.abacuswebservices.com/

Acernus Save
Provides usability services as well as site design and site creation services for web based companies.
http://www.acernus.com

Adaptive Path Save
A User Experience design and consulting firm that unites theory and practice to advance the art of user experience design while helping clients make better business decisions. Located in California, USA.
http://adaptivepath.com/

Adducive Save
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/

AGConsult Save
Specialized in user-friendly Internet interface. Includes online articles. Located in Belgium, website also in Dutch.
http://www.agconsult.be

Amberlight Partners Ltd. Save
Helps corporations achieve specific business results by providing research, and a user-centred approach to the design and use of digital technologies. Located in the United Kingdom.
http://www.amber-light.co.uk/

Anderson, Richard I. Save
Provides guidance in collaborative, user-centered design, ethnographic research, and multidisciplinary collaboration. Located in California, USA.
http://www.well.com/user/riander/

Andrew Fox Interactive Save
Design, usability and consultancy. Located in the United Kingdom.
http://www.andrewfox.co.uk/

Aptima, Inc. Save
Providing innovative research and applied design for government, industry, medical, and transportation fields. Locations in Washington DC and Massachusetts, USA.
http://www.aptima.com/

Ariel Performance Centered Systems, Inc. Save
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/

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

Black Box Media Save
A website and CDROM publishing company specializing in human factors for interface design, usability and usage studies, navigation and information architecture - directly for clients or through larger companies. Located in Canada.
http://www.black-box-media.com

Bohmann Usability Save
User experience consulting. Including articles and news about Web usability. From Denmark.
http://www.bohmann.dk/

British HCI Group Consultancy Listing Save
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/co...

Busse Design Save
Experts in user interface design for applications and other web-based products. Located in California, USA.
http://www.bussedesign.com/

Catalyst Group Design Save
Usability and User Interface Designers. Located in New York, USA.
http://www.catalystgroupdesign.com/

Center for Usability Research and Engineering Save
Offers services and research in the field of usability engineering and user interface design in Vienna Austria.
http://www.cure.at/

Centralis Save
A user experience consultancy offering research, testing and design expertise to develop interactive applications. Located in Illinois, USA.
http://www.centralis.com

Change Sciences Save
Provides research, workshops, and consulting for improving the user experience of web sites and interactive applications. Located in New York, USA.
http://www.changesciences.com/

Classic System Solutions Save
A software development and professional services organization with expertise in graphical user interface (GUI) design and usability. Located in California, USA.
http://www.classicsys.com

Clickdensity Save
Offers a tool to record the position of every click on a web page, creating a virtual heat map of visitor activity. Includes details of benefits and how it works, together with a free demonstration.
http://www.clickdensity.com/

Cognetics Corporation Save
Offers a Logical User Centered Interaction Design (LUCID) Framework, a methodology for managing the design and testing of the software user interface. Located in New Jersey, USA.
http://www.cognetics.com/

Cooper Interaction Design Save
Offers a range of goal-directed services that can be used to create and improve interactive solutions from California, USA.
http://www.cooper.com

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

Corsair Save
Specializes in customer experience, visual design, information architecture, and strategy. Located in New York, USA.
http://www.corsairstudio.com

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

Crystal Point Consulting Save
Helps businesses sharpen their websites. Provider of website analysis, reality testing, training seminars, and consulting services. Located in Illinois, USA.
http://www.crystalpointconsulting.com/

Datapanik Save
Provides user interface design, user centered design, and usability services for software and hardware developers. Located in Canada.
http://www.datapanik.com/

December Communication Inc. Save
Web based communications company. Offers publication, presentations and consulting. Includes Computer-Mediated Communication Magazine (CMM) archives and resources.
http://www.december.com/

Design Save
Offers usability consulting. Includes resources, articles and courses. Located in Melbourne, Australia.
http://www.infodesign.com.au/

Design Interpretive Save
Integrated delivery of user interface design, industrial design, and usability assessment and testing services. Located in Ottawa, Canada.
http://www.designinterpretive.com/

Diamond Bullet Design Save
Web site design, user interface design, plus accessibility and usability evaluation services. Located in Michigan, USA.
http://www.diamondbullet.com

Direct Perception LLC Save
Specializes in customer-centered product and service innovation. Includes links.
http://www.directperception.com

Dreamstep Design Save
User Centered approach to interface analysis and design.
http://kevinbury.com

Effortmark Ltd. Save
Usability Consulting firm based in Leighton Buzzard, UK. Focuses include making web sites and particularly web forms easier to use.
http://www.effortmark.co.uk

Elemental Usability Save
Specialising in usability and accessibility testing, information architecture and brand web design throughout Northern Ireland and the UK.
http://www.elementalusability.co.uk/

Eleven Consulting Save
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/

Emma Jane Consulting Save
Offers web and interface design plus user studies.
http://www.emmajane.com/

Enervision Media Save
Provides analysis and designs interactive systems and interfaces for usability across all technology platforms. Located in New York, USA.
http://www.enervisionmedia.com

Enflexion Save
Australia-based consulting group specialising in eBusiness usability and accessibility.
http://www.enflexion.com.au/

ePerformance Consulting Save
Consulting services covering usability, information architecture, user experience design, search engine optimisation and complete website design. Located in the UK.
http://www.eperformance.co.uk/

Ergosoft Laboratories Save
Bases information architecture and interface design on user data and continuous usability testing. Located in Texas, USA.
http://www.ergolabs.com/

Erik More Save
User experience consulting services focused on usability engineering, information architecture, and interface design. Located in California.
http://www.erikmore.com

European Usability Support Centres Save
A network of technology centres across Europe to help companies enhance the usability of their products and systems.
http://www.lboro.ac.uk/research/husat...

Evan Media Save
Creation of user-centered interface designs, websites and custom web applications for small to mid-size businesses. Located in California, USA.
http://www.evanmedia.com/

Experience by Design Save
Washington, DC based information architecture and user experience consultancy for websites & software.
http://www.experiencebydesign.com

Experience Research - Richard Linington Save
Ethnographic research leading to the creation of useful and desirable user experiences. Located in the United Kingdom.
http://www.experienceresearch.com/

EyeTracking Save
Eye tracking technology to test users' responses to websites and other promotional material. Located in California, USA.
http://www.eyetracking.com

Ferguson, Louise Save
Consulting services to research, design, and evaluate interactive products. Specialist in medical usability, wireless systems and complex collaborative environments. Located in the UK.
http://www.louiseferguson.com/

fhios Save
Offers user research and services for the complete design and development process including usability testing. Based in London, United Kingdom.
http://www.fhios.com

Fields, Jason: air-port Save
Evolving technology and delivering a more compelling and dynamic digital experience to end users online and offline. Based in California, USA.
http://www.air-port.com/

Filament Group Save
Designs software and websites, provides market analysis and training, and works with rich media and wireless technologies. Located in Massachusetts, USA.
http://www.filamentgroup.com

Fission Interactive Save
A team of designers, programmers and usability specialists from Nortel Networks' former human factors group offer web design and usability evaluations. Located in Canada.
http://fissioninteractive.com

Flash 99% Good Save
Usability for Flash. Promotes mainly a book, and includes tips, tutorial, and links.
http://www.flash99good.com/

Florian N. Egger Save
Researcher at the University of Eindhoven, Netherlands, in human-computer interaction. Offers consulting in user experience and trust, including aspects of e-commerce system design.
http://www.ecommuse.com/

Flow Interactive Save
Offers consulting services to research, design, and evaluate interactive products. They will either design a solution for you, or help you to design the most user friendly one yourselves. Located in the UK.
http://www.flow-interactive.com/

flyTrap Interactive Save
Offers user interface design services at all phases of application development, including working prototypes for web and interactive multimedia applications. Based in San Diego, California, United States.
http://flytrapinteractive.com/

Foolproof Business Services Save
Examining the online sales process from the customer's point of view. Located in England.
http://www.foolproof.co.uk

Frontend Save
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

Genesis Save
Offers usability evaluations, user-centered front-ends, software product design, and training. Located in India.
http://www.genesishci.com

Good Experience Save
Mark Hurst and Creative Good present white papers on customer and user experience.
http://www.goodexperience.com/

Gothelf, Jeff Save
Representation of the disciplines of information architecture, business analysis and usability, as well as contact information and a resume. Located in Massachusetts, USA.
http://www.jeffgothelf.com

gotomedia, inc. - interaction design and usability consulting Save
Offers customized user experience and branding solutions. Notable clients include Macromedia & WebEx.
http://www.gotomedia.com

Gravity7 Save
Award-winning web site development, user interface, user experience consulting and communication design. Includes short articles. Located in California, USA.
http://www.gravity7.com

Gruden Save
Provides website design and development solutions for internet, extranet, intranet, multimedia and new media projects.
http://www.gruden.com

GUI Designers Save
Usability Consultancy committed to designing and evaluating successful and effective Windows Applications and Web Sites. Offering the full range of Usability Services. Located in the United Kingdom.
http://gui-designers.co.uk/

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

Hall Interaction Design Save
Texas design consultantancy specializing in user interface and interaction design, visual communication, and usability for products requiring human-computer interaction.
http://www.coxhall.com

Hastings Research Save
Internet and interface development. specialise in HCI, usability, architecture, systems integration and e-business. Offer a number of white papers. Located in California, USA.
http://www.hastingsresearch.com/

Hibbitts, Paul D. Save
Provides user interface design services, including usability evaluations and education. Located in Canada.
http://www.paulhibbitts.com

HumanCentric Technologies, Inc. Save
Human factors testing and consulting firm with expertise in Web design, and consumer electronics. Located in North Carolina, USA.
http://humancentrictech.com

Human Factors International, Inc. Save
Ensuring usability and systems consistency through software ergonomics, human factors science and design considerations. Located in Iowa, USA.
http://www.humanfactors.com/

Human Interface Group Save
User-centered user interface design, user documentation and training services. Belgium
http://www.higroup.com/

Human Interfaces, Inc Save
Usability consulting for web, software and hardware products. Background in Human Factors. Located in Texas, USA.
http://www.humaninterfaces.net

Humansystems Inc. Save
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

Hypercerulean Inc. Save
Specializes in applying human factors analysis to usability engineering, testing, and interface design. Located in Washington.
http://www.hypercerulean.com/

Icon Medialab Save
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/

Ideactif Save
Offers consulting services to provide user-centred design, i.e. a combination of usability, information architecture, communications, marketing and design. Located in Canada. Main site in French.
http://www.ideactif.com/en/

Idean Research Save
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/

IdeasMerchant.com Ltd Save
Specializes in site and user interface development, web consulting, and training.
http://www.ideasmerchant.com

Incontext Enterprises Save
Provides design, training, and market information services. Located in Massachusetts, USA.
http://incontextdesign.com

Instrata Save
Offers services to study user behaviour and apply results to create functional and usable user interfaces. Located in the UK.
http://www.instrata.co.uk/

Interacta Design Oy Save
Specializes in goal-based user interface design and field studies to find out the users' goals. Provides usability assessment, e.g. expert reviews and usability testing. Located in Finland.
http://www.interacta.fi/

Interaction Architect Save
Sim D'Hertefelt offers services for designing usable interactive systems, includes articles. Located in Belgium.
http://users.skynet.be/fa250900/

Interaction Design Save
Offers Web design and usability testing services.
http://www.user.com

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

Interface Guru Save
Tests and makes recommendations on how to improve commercial websites. Located in Tucson, Arizona, USA.
http://www.interfaceguru.com

Interpix Design Inc. Save
Consulting firm with focus on simplicity and usability. Located in Canada.
http://www.interpixdesign.com

Jeff Brace Design Save
Consulting services include business analysis, information architecture, user interface design, and usability evaluations. Located in British Columbia, Canada.
http://members.shaw.ca/jeff.brace/

Joe 10 Group Save
Interface design and usability consulting firm which applies user centered design strategies to help businesses improve the user experience of their Web sites and consumer products. Located in California, USA.
http://www.joe10.com/

KeyLabs Software Testing Products and Services Save
KeyLabs is an independent testing lab providing web site application performance testing.
http://www.keylabs.com

Knabe Design Save
Information architecture, interaction design, technical writing, user centered design, and usability evaluation. Located in Pennsylvania, USA.
http://www.knabedesign.com

Kraka Inc. Save
Offering consulting services in most aspects of interaction design. Located in California, USA.
http://www.kraka.com/

Lextant Save
Provides user experience research, user-centered interactive design and usability evaluation. Offices in Ohio and Colorado, USA.
http://www.lextant.com

Lockwood, Ltd. Save
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/

Look and Feel Australia Save
Offers user experience design plus usability and product strategy consulting. Also other services concerning interactive products.
http://www.lookandfeel.com.au

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

Maskery Save
Offers user centred research and design services, specializing in concept design, usability, accessibility product evaluations, and training. Located in Ottawa, Canada.
http://www.maskery.ca

MauroNewMedia Save
Consulting services concerning User Interface Design and Usability Engineering. Located in New York, USA.
http://www.mauronewmedia.com

McGee, Patrick W. Save
User interface designer and illustrator for online and offline media in Texas, USA.
http://www.pmcgee.net

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

Membex Save
Specializing in interface design, usability testing, site development, database architecture, and ecommerce sites. Located in Pennsylvania, USA.
http://www.membex.com/

Mental Models Save
Employs a user-centered approach to provide User Interaction consulting, rapid prototyping, presentation and graphic design. Focus on enterprise applications. Located in California, USA.
http://www.mentalmodels.com/frame.jsp...

Metamedia Save
Provides user-oriented product and interface design services for custom software and embedded systems. Located in Tennessee, USA.
http://www.xo4.com

Milobox, Inc. Save
Helps clients create, renew and strengthen their user interaction to enhance the user experience for software and websites. Includes articles and other resources.
http://www.milobox.com

Miramontes Computing Save
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.
http://www.miramontes.com

mProver Save
Website usability reports and email support. Located in New York, USA.
http://mprover.com/

Namahn Save
Consulting firm specializing in customer-focused information design and interaction design of media, products and tools. Located in Belgium.
http://www.namahn.com/

Nat Bobbitt's Laboratories Save
Research and IT consulting expertise in the assessment of information systems for: ERP, CRM, CMS, DBMS. Located in Colorado, USA.
http://www.nabslab.com/

Nelson Usability Associates Save
Provides consulting, research, and training in usability evaluation and interaction design. Located in Ohio, USA.
http://www.nelsonusability.com/

NerveCentral Save
A web usability and solutions consultancy, offering user-centered ergonomic design and web development. Located in the UK.
http://nervecentral.com

NetRaker Corporation Save
Provides an online suite of website evaluation tools to help businesses understand and manage customer intentions, attitudes, and behavior. Headquartered in California, USA.
http://www.netraker.com/

NewOpp.ca Inc. Save
A customer driven, products, process and innovation solutions provider. Based in Ontario, Canada.
http://www.newopp.ca/

Nielsen Norman Group Save
Consulting agency offering to enhance the user experience. Includes news, events and publications. Located in California, USA.
http://www.nngroup.com/

Nuno Design Save
Offering user-centered interface design, auditing, and prototyping solutions for online and MS Windows applications. Located in Ireland.
http://www.nuno.ie/

Open Interface Save
Offers services concerning accessibility and usability. Provides web development and training. Located in Ireland
http://www.openinterface.ie

Ovo Studios Save
Offers fixed and portable usability labs and logging software. Located in Illinois, USA.
http://www.ovostudios.com

Pamam Save
Solutions for user interface design and human factors engineering. Located in Israel.
http://www.pamam.com/

Performance Research and Design Save
Offers user-centred design services for product development, including usability testing, survey research, user-centered design and focus groups. Located in New York, USA.
http://www.prad.com/

Perrault, Ron Save
Interface designer with experience in user interface, Web design and usability testing, product management, and information architecture. Includes a portfolio and a resume. Based in Toronto, Canada.
http://homepage.mac.com/ronperrault/p...

Preston G Smalley Save
Offers services in interaction design and software engineering. Located in California, USA.
http://www.prestonsmalley.com/

Pure Interface Save
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/

Pure Usability Ltd Save
Web usability and accessibility consultancy. Based in the UK.
http://www.pureusability.co.uk

Quakenbush Design Save
Interface Design consultation for browser-based and traditional software as well as interactiveTV.
http://www.q-design.com/

Reuten Save
Offering information architecture, user experience and usability evaluation services. Located in Melbourne, Australia.
http://www.reuten.com.au/

Reynolds, Louis Save
Information architect and GUI consultant, specializing in information architecture, user testing, user experience, and GUI design. Located in New Jersey, USA.
http://www.louisreynolds.com/

Rocket Communications, Inc. Save
Consultants providing information architecture, visual interface design, icons, and usability testing. Located in California and Hawaii, USA.
http://www.rocketcom.com

Sage Consulting Save
Silicon Valley based computer human interaction consultancy focusing on practical usability testing & interface design. Located in California, USA.
http://www.sage-research.com/

SalemSystems Save
Usability testing, customer research, and product design services. Located in Washington, USA.
http://www.salemsystems.net

Section 508 Accessibility Save
Consulting services including 508 compliance audits, accessibility redesign and retrofit, testing and training. Located in California.
http://508.intetics.com

Sensiva Inc. Save
A software company focusing on natural control of PCs and intelligent appliances, enhance the speed and the pleasure of controlling PCs and electronic devices. Headquarters located in California, USA, with additional locations in France, Japan, and Monaco.
http://www.sensiva.com/

Serco Usability Services Save
London, UK based independent usability consultants, covering websites, interactive TV, interactive appliances and mobile Internet devices.
http://www.serco.com/usability/

Shiro Wilde Save
Interaction Designer
http://www.freshgoods.com/projects/

Siteworkz Consulting Save
Provides services in Web Design, Information Architecture, specializing in web usability. Located in Canada.
http://siteworkz.com

Sliced Bread Interaction Design Save
User interface design consultancy creating online, desktop, and handheld products and services. California, United States.
http://www.slicedbreaddesign.com/

Snyder Consulting Save
Usability and prototyping consultant focused on helping customers recognize, prioritize, and solve usability problems. Located in New Hampshire, USA.
http://www.snyderconsulting.net/

Software Human Factors Save
Provides a wide range of usability consulting services including interface design, user testing, focus groups, heuristic evaluations and onsite training.
http://www.softwarehumanfactors.com

Sotopia Save
Usability consultant specialized in user centered design, including computer interaction, and usability engineering. Located in Rotterdam, Netherlands.
http://www.sotopia.com/

Spox Design Save
Usability testing service. Offering independent review and analysis, and testing of websites using actual users.
http://www.spoxdesign.com

Sprezzatura Systems, Inc. Save
Software design, programming, documentation, and review. White papers and other collaterals. Web site design and writing. Located in California, USA.
http://www.sprez.com/

Sterling Creations Save
Technology for persons with special needs and access for everyone.
http://www.sterlingcreations.ca/

Strategic Integration Save
Offers eBusiness usability testing and development services. Based in the UK.
http://bestidea.biz/

Swim Interaction Design Studio LLC Save
Specialists in designing usable, useful and aesthetic interfaces for interactive products, ranging from software applications to handheld devices and medical equipment. Located in California, USA.
http://www.swimstudio.com

Syntagm Save
User-centered design and development services, including object-oriented design and UML, usability evaluation and training. Located in Oxford, UK.
http://www.syntagm.co.uk

Tec-Ed, Inc. Save
Customer research, information architecture and design, and usability evaluation of technology products and websites. Offices in Michigan, California, and New York, USA.
http://www.teced.com/

The Communication Studio LLC Save
Seasoned interaction designer: documentation, graphics, wireframe models, best practices & information architecture. A unique combination of business understanding, technical acumen, creative talent and strategic insight. Experienced in transactional systems, financial services. Servicing Northern New Jersey and New York City, USA.
http://www.jcvtcs.com/index.html

The Hirsch Group Save
Specializing in the conceptualization, design, development, evaluation, review and assessment of human-computer interfaces, especially web-based applications. Located in California, USA.
http://www.thehirschgroup.com/

The Hiser Group Save
Committed to liberating technology from the technologists and letting people play with it instead. Focus on usability and accessibility of interface design. Located in Australia.
http://www.hiser.com.au/

The TerraNova Group Save
Specializing in user interface design, ethnography, usability evaluations, and user support systems. Located in Georgia, USA.
http://www.terranova.tv/

TheUEgroup Save
Experienced consultants specializing in the area of user interface design and usability. Located in California, USA.
http://www.theuegroup.com/

The Usability Company Save
Specialists in website, wireless, Intranet, digital interactive TV and software usability testing. Includes a glossary and links. Located in the United Kingdom.
http://www.theusabilitycompany.com

The Usability Group Save
Specializing in customer research and analysis of technology products and services. Jeff Rubin and Dave Rinehart manage offices in New Jersey and Atlanta, USA.
http://www.usability.com

ThoughtCap Save
Internet consultancy committed to helping Global 2000 clients leverage customer experience as a competitive advantage and driver of profits. Located in New York City.
http://www.thoughtcap.com/

Tmtm Save
Offers services to create meaningful digital product development and user experience. Located in London, UK.
http://www.tmtm.co.uk

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

Truth In Design Save
Consultants who design user experience in the shape of graphical user interfaces on the internet and in the wireless world. Located in California, USA.
http://www.truthindesign.com

Two Rivers Consulting Corporation Save
A consulting firm in Massachusetts.
http://www.tworivers.com/

U-C Webs Save
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/

Usability Architects, Inc. Save
A usability consulting and contracting firm specializing in designing the user experience with user-centered methodologies.
http://www.usability-architects.com/

Usability by Design Ltd Save
Offering usability and design consultancy to the e-commerce and client server markets in Europe. Located in London, United Kingdom.
http://www.usability.uk.com/

Usability Consultancy Save
Strategic Web design consultancy which uses user centred design and market research techniques. Located in the United Kingdom.
http://www.u-consulting.co.uk/

UsabilityOne Save
Offers a range of services with a focus on user interfaces for web and non-web applications. Services available throughout the Asia Pacific. Located in Australia.
http://www.usabilityone.com

Usability Partners Save
Independent usability and user-centred design consultancy, based in Stockholm, Sweden.
http://www.usabilitypartners.se/

Usability Sciences Corporation Save
Provider of usability testing and research for websites, consumer electronics, software and hardware products. Located in Texas, USA.
http://www.usabilitysciences.com/

Usability Systems, Inc. Save
Design of custom usability testing environments, including stationary labs and portable labs. Located Georgia, USA.
http://www.usabilitysystems.com

Usable Interface Save
The portfolio and resume of Kyle Pero, a usability analyst, interaction designer, and information architect consultant based in Pennsylvania, USA.
http://www.usableinterface.com

Usablity Glossary Save
Boston Web firm offering information architecture, interaction design, usability consulting, and copywriting.
http://www.bobgoodman.net/main/glossa...

Userface Ltd Save
User interface design and usability evaluation consultancy. Located in London, United Kingdom.
http://www.userface.net

User Insight Save
Provider of user experience services utilizing usability testing, focus groups, market research, training and documentation. Located in California, Georgia, and Illinois, USA.
http://www.userinsight.com

User Interface Design GmbH Save
Specializes in usability engineering, graphic design and software engineering, Located in Germany (Munich, Stuttgart, Mannheim).
http://www.uidesign.de/

User Interface Engineering Save
Provides usability consulting, research, training and conferences. Located in Massachusetts, United States.
http://www.uie.com

Userlab, Inc. Save
Consulting in website usability, training and testing.
http://www.userlab.com

Vista Point Consulting Save
Provides web site design and evaluation services for small and mid-sized businesses. Focus on usability, customer-focused content and clean design. Based in Renton, Washington, United States.
http://www.newvistapoint.com/

Web Site Optimization, LLC Save
Consulting firm offering Web optimization services and information. Located in Michigan, USA.
http://www.websiteoptimization.com

WordFixers Save
Offers service for designing online-help system, user documentation and translation. Located in Oslo, Norway.
http://www.wordfixers.no/

Zanzara User Experience Save
Offers usability testing, UI design and customer research services. Located in Washington, USA.
http://www.zanzara.com