Top 100 Usability Testing Services

Zazz is a Seattle-based mobile app development company founded in 2011. They have an additional office in San Francisco. Their team of approximately 50 employees serves clients of all sizes and industries. In addition to app development, they also specialize in enterprise app modernization and UX/UI design.

Requestum, a custom software development firm, was launched in 2015. They are based in Muttenz, Switzerland; Rīga, Latvia and Kharkiv, Ukraine and have a midsize team. Requestum offers Custom Software Development, Mobile App Development, Artificial Intelligence, UX/UI Design, and more.

Boldare is a digital product design and development company based in Gliwice, Poland. The company is a merger of two companies - Chilid, a high-end web design agency and XSolve, a software development company. Boldare capitalizes on 15 years of experience, 250+ products they have released to market for clients, and their team of 130. 

 

Founded in 1998, REEA Global is a midsize software development firm. Their team specializes in custom software development, ux/ui design, web development, mobile app development, and more. The agency is located in Baltimore, Maryland.

'Very is an IoT technology firm led by expert problem-solvers to create efficient, scalable solutions that move commercial, industrial and consumer IoT projects from pilot to production in record time. From smart products in homes and businesses to end-to-end smart ecosystems, Very solves complex problems with a strategic, collaborative, and user-centered process designed to ensure every element of the problem is understood before developing solutions.

Where others see blockers, Very finds opportunities to help partners recognize near-term value — leading to outcomes as powerful as the partnerships that built them.'

 

Mobomo is a 50+ web and mobile app design and development agency based in Vienna, VA with an office in Denver, CO. Since their startup in 2009, the team has helped to create functional and outstanding UI/UX with a responsive backend for businesses of all sizes.

Angry Nerds is a software development house based on Wroclaw, Poland. Established in 2015, they have more than 60 employees who provide app development services for global clients consisting mostly of small and mid-market firms. Their services include custom software development, web development, and mobile development for Android and iOS. They also offer staff augmentation.

Team CoDesign is a UX/UI design company based in Nagpur, India. It has 6 employees and was founded in 2017. The team provides UX/UI design, logo design, and branding for their clients.

Chili Labs is mobile app development company based in Riga, Latvia. Founded in 2015, Chili Labs' team of over 15 employees provides mobile app development, UX/UI design, and wearable app development services to small and midmarket businesses.

SIVOXI™ is a design and development agency based in Johannesburg. Founded in 2016, their team of fewer than 10 employees serves enterprise and midmarket businesses in industries such as business services, advertising and marketing, and consumer products. Services include custom software development, UX/UI design, and IT strategy consulting.

Started in 2012, Distillery is full-service web and mobile app development firm in Santa Monica, CA. This 50+ team offers varied expertise in digital products from concept to creation to support.

Atom6 is a Jackson, Wyoming-based user experience design agency. The small team focuses on ux/ui design, web design, product design, graphic design, and more and was founded in 2016.

Caboodle UX Studio is a design company located in Winchester, Hampshire, England. Their team of around five employees provides UX/UI services and custom software development for businesses of all sizes. Primarily, they work in the financial and consumer services industries.  

In Pavia, Italy and Milano, Italy, glueglue is a mobile app development firm. They specialize in Mobile App Development, UX/UI Design, and Web Development and were launched in 2007.

Neverhund is a small UX agency. Established in 2012, the team offers ux/ui design. The firm is based in Podgorica, Montenegro.

Infinity mesh, a , was launched in 2016. The agency specializes in and has a midsize team. The agency is headquartered in Sarajevo, Bosnia and Herzegovina.

pitangoUX is a design agency in San Jose, Calif., and Tel Aviv, Israel. Founded in 2010, they have about 8 employees that serve small-business and midmarket clients in the gaming, consumer products, and business sectors. Services include UI/UX design and product design.

Founded in 2015, Altalogy is a technology company based in Katowice, Poland. They have a team of 4 who provide web development, web design, mobile app development, and custom software development for small businesses; these clients are primarily in the information technology, business services, and health care industries.

NEVERBLAND is a web development firm. They provide web development, web design, ux/ui design, custom software development, and more and were launched in 2010. Their small team is London, United Kingdom-based.

ENNO Studio, an user experience design agency, is headquartered in Berlin, Germany. The small team specializes in ux/ui design, web design, digital strategy, branding, and more. The firm was established in 2019.

UX company Codment was launched in 2018. The midsize team focuses on ux/ui design, IT staff augmentation, custom software development, web development, and more. The company is headquartered in Islandia, New York.

High Contrast is a full-service interactive agency located in Brasov, Romania. The agency was founded in 2002 and now has a team of 16 that offers web design, web development, UX/UI design, and branding services. They serve a variety of clients. 

Efir Media is a full-service digital creative agency in Philadelphia, PA founded in 2016. Since then, they have successfully completed 100+ projects with fully bespoke digital experiences that delight, engage and convert users every day, across a wide range of industries and business sizes, and have won over 45 industry awards. Efir media handles branding, website design and development, e-commerce development, and content creation. 

Code/+/Trust is a software agency based in Mt. Pleasant, S.C., and founded in 2018. Their team of no more than 50 specializes in mobile app development, custom software development, and UX/UI design services for small and mid-market businesses.

Headquartered in Ahmedabad, India, Shaligram Infotech is a software development company with development centers in Harrow, UK, and Brisbane, Australia. Since 2015, their team of 170+ have been specializing in mobile app development, web development, UX/UI design and more for clients in the e-commerce and information technology industries.

PurpleBricks is a custom software development firm. Their small team is based in Petah Tikva, Israel. The agency offers custom software development, mobile app development, web development, blockchain, and more.

OAK'S LAB is a full-service digital product development agency and startup ecosystem based in Prague and San Francisco. Since their inception in 2016, the team has scaled to 70 employees and built 31 startups with a valuation of $750 million. They offer services in product management, UI/UX design, engineering, DevOps, and QAC. 

Launched in 2020, IT SQUAD is a business consulting company. The agency focuses on business consulting and has a midsize team. The agency is headquartered in Warszawa, Poland.

Founded in 2018, Fusion Team is a Russia based development company located in the city of Taganrog. Their team of 13 provides web design, UX/UI design, web development, and mobile app development to clients. 

Imaga, an user experience design company, is in San Mateo, California; Dubai, United Arab Emirates and Cumbre del Sol, Spain. The midsize agency was established in 2018. Their team provides UX/UI Design, IT strategy consulting, Engineering, AI Consulting, and more.