Searching for a usability testing agency that can ensure your products and applications properly function? We evaluated numerous success stories, client feedback, and service scopes to compile a list of the best usability testing companies. Browse our directory and refine your search based on location, area of expertise, budget, and other criteria to find a suitable match for your needs.
Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
At SOFTLOFT, we don't just build platforms; we inspire businesses to dream big and achieve results
SOFTLOFT is an innovative eCommerce software company, providing a full range of ecommerce services...
Top Services:
- UI/UX Design
- Web Development
- eCommerce Development
- Mobile App Development
- CRM Consulting
- Show more
- Location
- Portimão, Portugal
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $75/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSOFTLOFT Services
Data sourced from the agency's DesignRush profileH&M Victoria's Secret Escentials Shobr Mothercare Foot Locker Miller Harris
SOFTLOFT Reviews & Testimonials

eCommerce Development Review from Jutamas Puengpinit
We engaged SoftLoft, Inc. to enhance our e-commerce platform, which is critical for delivering our modular IoT solutions efficiently across emerging markets. As Mandom Corporation (Thailand) Limited operates in a fast-paced production and tech environment, we needed a development team that could understand both our industry-specific needs and the technical depth required to support our operations. Our goal was to refine our platform's functionality, improve system stability, and enable easier configuration and ordering of IoT devices for clients.SoftLoft delivered far beyond our expectations. Their team, consisting of a Business Analyst, four Magento developers, and two testers, approached the project with remarkable professionalism. From the outset, the Business Analyst played a pivotal role in capturing our requirements in detail and transforming them into clearly defined tasks. This laid a strong foundation for the developers to implement complex features with precision, and for the QA team to conduct thorough, issue-free testing.The project involved building a new interface for configuring device packages, optimizing backend operations for better order management, and delivering detailed documentation to support ongoing maintenance. Every deliverable was executed with care, on time, and with full transparency.What stood out most was SoftLofts commitment to quality and their responsiveness. Communication was smooth and proactive throughout the project. Their attention to detail, flexibility in accommodating adjustments, and clear documentation ensured a seamless experience for our team. The improvements they implemented significantly reduced internal friction and enhanced client satisfaction.Our experience with SoftLoft was outstanding. They brought structure, clarity, and excellence to every phase of the project. We would highly recommend them to any business seeking a reliable and capable development partner for e-commerce solutions.

eCommerce Development Review from Lev Peysekhman
I had the pleasure of working with this development team on launching an eCommerce store for our healthcare retail business in Thailand. The project was complex building a Magento-based platform integrating over 10 different systems, including product and order management, plus financial tools. They also developed some really smart features, like a dynamic questionnaire that recommends vitamins based on user input, and a secure portal for doctors to manage prescription orders.What impressed me most was their professionalism and adaptability. We had a lot of stakeholders with varying needs, tight deadlines, and even changing regulations that required quick adjustments. Despite all this, the team remained agile, communicated clearly, and delivered exactly what was promised on time.Their technical expertise ensured seamless integration across all systems, which made the entire operation much smoother. Thanks to their work, we launched a fully functional store that improved customer experience and compliance with healthcare regulations. I highly recommend this team to anyone looking for a dependable, skilled partner for complex eCommerce projects.

eCommerce Development Review from Rob Duxter
I'm more than satisfied in my experiences with Soft Loft. I've worked with them for a few years now, on several projects from eCommerce sites (Magento, Shopify, custom) and even apps and information architecture requirements from tech stack evaluation/selection to DNS setup and management. Every team member I've engaged with from their Executives, to Business Analysts to Project Managers, QA and Developers or Information Architects .... total Pros. Whether a small project under $20k or large over $200k - the quality and professionalism is rock solid. Thank you Soft Loft. Keep it up!!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsExperts at Your Service
Alt Digital Technologies is a B2B service provider servicing end to end development, DevOps, Testing and e-commerce solutions for your business. We work efficiently in ATG, Java, React, Salesforce, WordPress and majorly all technologies...
Top Services:
- Web Development
- eCommerce Development
- Mobile App Development
- Software Development
- Software Testing
- Show more
- Location
- Florida City, Florida
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAlt Digital Services
Data sourced from the agency's DesignRush profileBoeing Co Etisalat Neiman Marcus
Alt Digital Reviews & Testimonials

Web Development Review from Undisclosed
It is a feeling of both ecstasy and pride to know that all these years of hard work from our team has delivered a website which is delivering a powerful experience designed to meet the needs of our distribution customers. I am proud of our team's effort and also to be a part of this team.

Software Development Review from Undisclosed
You guys are one of the most wonderful people to work with. And most supportive, hardest working. We couldn’t have done what we’ve done in the past 2+ years without this team. Don’t ever forget it your value. You’re absolutely brilliant. It’s been such an honor to be your PO.

Mobile App Development Review from Undisclosed
I preferred Alt Digital Technologies over big companies because of the quality and the stability of their people.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsCreating and inventing together!
Marble IT delivers exceptional solutions with cutting-edge technology. Our agile teams create tailor-made Web and Mobile apps, Video Games, 3D encounters, and AR/VR solutions. We expand our knowledge to stay ahead of the curve and deliver unique solutions. We're here to help you achieve your goals!...
Top Services:
- Software Development
- Mobile App Development
- Staff Augmentation
- VR/AR
- Web Development
- Show more
- Location
- Novi Sad, Serbia
- Number of Employees
- Under 49
- Average Hourly Rate
- $40/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 23 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMarble IT Services
Data sourced from the agency's DesignRush profileConga ZENEGY DesignLed Dispensary Green LOFT - Coffee and Food Bar MAG Architecture Coffee & Factory Uppiness Aqua Fresh Fit Connector
Turn Insights Into Revenue
Prismfly is an award-winning ecommerce optimization agency. We drive revenue growth for ecommerce brands through CRO, tailored development, standout design, and personalized lifecycle marketing...
Top Services:
- CRO
- eCommerce Development
- Web Development
- Web Design
- Branding
- Show more
- Location
- Dallas, Texas
- Number of Employees
- Under 49
- Average Hourly Rate
- $185/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 9 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsPrismfly Services
Data sourced from the agency's DesignRush profileMiku Phelps Red Land Cotton Gooseberry
Prismfly Reviews & Testimonials

Web Design Review from Alex Choi
We brought this agency in as a consultant during a major redesign initiative, and their impact was immediate.They provided clear best-practice guidance across UX, conversion strategy, and design systems helping us think beyond aesthetics and focus on structure, clarity, and performance. What stood out most was their ability to balance strategic insight with practical execution. They didn't just point out what could be improved; they offered thoughtful, actionable solutions.Throughout the process, they were collaborative, responsive, and consistently available to support our internal team. Whether it was refining layout hierarchy, improving user flows, or pressure-testing creative direction, they were a steady partner from start to finish.If you're looking for a team that combines strong design instincts with conversion-minded thinking and a consultative approach, Id highly recommend them.

CRO Review from Anna Brakefield
We've been working with Prismfly since 2019 for web development and CRO and they have been great! Listened and made changes when needed and provided quality work with amazing responsiveness. Communication is great!
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsPutting India on the global Innovation Map!
InventIndia Innovations Pvt. Ltd. empowers clients to accelerate innovation with a full-service ux design company approach. Precision and creativity combine seamlessly in our end-to-end product development, IP strategy, and award-winning user experience solutions trusted by global leaders...
Top Services:
- Product Design
- Branding
- Package Design
- UI/UX Design
- Graphic Design
- Show more
- Location
- Ahmedabad, India
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 39 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsInventIndia Innovations Pvt. Ltd. Services
Data sourced from the agency's DesignRush profileMeditech International Wipro Duke University BTL Harman eInfochips - An ARROW Company Kohler Invixium Inc. Amico Kairos
InventIndia Innovations Pvt. Ltd. Reviews & Testimonials
Sameer Thole's Review Sourced from Google
Update your google page phone numbers to connect to you. all your numbers have been changed and u havent updated on google
manali shah's Review Sourced from Google
It was a great learning opportunity for me and an incredible platform for me to learn and grow as a design student. Every single individual has been very helpful and supportive. Overall it has been a marvelous experience.
Maulik Soni's Review Sourced from Google
A great place to learn about end to end product design process. Very energetic & creative environment supported by expert team.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsDriving digital growth for ambitious brands.
Were a digital agency delivering stand-out experiences that generate results...
Top Services:
- Web Development
- eCommerce Development
- UI/UX Design
- SEO
- Content Marketing
- Show more
- Location
- London, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $149/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 2 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsPropeller UK Services
Data sourced from the agency's DesignRush profileAzzuri Restaurant Group Mylands Epi 1959 KX Home House
Results-Driven UX and Product Design
Spinning Fox is a digital product design agency specializing in product research, strategy, and UX/UI design for websites and applications. The agency helps clients achieve tangible results from their digital platforms by understanding customer needs, improving user experience, and scaling businesses...
Top Services:
- UI/UX Design
- Product Design
- Web Design
- Design Services
- Show more
- Location
- Oxford, United Kingdom
- Number of Employees
- Under 49
- Average Hourly Rate
- $149/hr
- Minimal Budget
- $25,000 - $50,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSpinning Fox Services
Data sourced from the agency's DesignRush profileSANS Institute Tapestry Hota Better Than U Secure Impact GIAC
Droids On Roids is a mobile & web development company fromPoland, est. in 2011ABOUT US✔ 100% office-based team of 45+ talented professionals✔ We’re helping our clients to achieve their challenging business goals ✔ Among our partners are great start-ups (GIPHY, Electric Objects)...
Top Services:
- Software Development
- Mobile App Development
- Wearables
- IoT
- Product Design
- Show more
- Location
- Wroclaw, Poland
- Number of Employees
- Under 49
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $25,000 - $50,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDroids On Roids Services
Data sourced from the agency's DesignRush profileGIPHY Cam Skybuds Loop
Droids On Roids Reviews & Testimonials
Gabrielle BS's Review Sourced from Google
I recommend DoR as a software Tech Company! We've been working with them for 2 years and have had a great experience :)
Antoni Jakubowski's Review Sourced from Google
I highly recommend DOR as a software house specialising in mobile app development. They are known for their expertise in delivering high-quality software solutions with a focus on meeting clients' measurable business objectives
Natalia Urbańska's Review Sourced from Google
If you're looking for a professional company developing mobile apps in Flutter, Android & iOS for international clients - this is it. Plus awesome team and cool office in the heart of Wroclove.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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