Best Usability Testing Companies

5 Companies - Rankings updated: April 04, 2026

Every agency on DesignRush meets evaluation criteria around expertise and client feedback to empower informed choices. Some listings include paid partnerships.

United States × Maryland × Baltimore ×
  • Top US Mobile & Web App Development Agency

    AppMakersUSA is a US-based full-service mobile application development company. We specialize in building cross-platform websites and apps (meaning iOS & Android for the price of one), informing your business decisions from a technical perspective, and being transparent in our process & thinking.  [... see all AppMakers USA reviews ]
    Location
    Baltimore, Maryland
    Number of Employees
    Under 49
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    83 Projects Listed

    AppMakers USA Services

    • Mobile App Development
    • UI/UX Design
    • AI Development
    • Software Development
    • Web Design
    • Staff Augmentation
    • Web Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • OceanPads
      Web Design Project for Real Estate Company OceanPads
    • ClassCalc.com
      Web Design Project for Education Company ClassCalc.com
    • iPermitusa.com
      Web Design Project for Construction Company iPermitusa.com
    • Hive.com
      Web Design Project Hive.com
    • Softledger.com
      Web Design Project Softledger.com
    • OrcaWave.net
      Web Design Project for Software & IT Services Company OrcaWave.net
    Comprehensive analysis done by DesignRush Agency Experts.

    AppMakers USA Reviews & Testimonials

    • Awital Ifrah
      Awital Ifrah Program manager at Masa Israel journey
      5.0
      Cross-Platform Review from Awital Ifrah

      Masa came in with a pretty loose idea and AppMakers helped turn it into something solid. What I appreciated most is they didn't overcomplicate it or try to make it into some giant monster platform. They listened, asked smart questions, and helped us focus on what would actually matter for alumni and current participants. The end result felt thoughtful and realistic. I'd definitely work with them again.

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    • Moishi Stern
      Moishi Stern Customer support at Madlan
      5.0
      Startup Review from Moishi Stern

      We create live events. We wanted a site that shows what we do without making people dig. AppMakers listened, trimmed the fluff, and gave us pages that read fast and look good on a phone. The quote form asks the right things and our team can update galleries without calling a developer. They stayed on schedule and answered messages the same day. The whole process was calm and clear. We already see better inquiries. It feels like a real upgrade, even before the full rebuild.

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    • Jubilee Haddasah Munozvilla
      Jubilee Haddasah Munozvilla CEO at Its Kinda Catchy
      5.0
      Small Business Review from Jubilee Haddasah Munozvilla

      We loved working with AppMakers. They built us a procurement system to help quickly and easily secure materials for our labs. The process was smooth and the outcome was stellar.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • CVS Pharmacy
    • Austin Ekeler (NFL Player)
    • ClassCalc
    • Number Hive
    • BookClub
    • Arcxis
    • Debate club
    • Bayut
    • Los Angeles Apparel
    • Sun Scooter
    Data sourced from the agency's DesignRush profile
  • Helping non-technical founders find peace of mind.

    At Designli, we pair non-technical software founders with full-time, founder-aligned product teams. Software engineers, designers, and product owners who don't just speak code, they speak human. We guide you through every step with clarity, structure, and care.  [... see all Designli reviews ]
    Location
    Baltimore, Maryland
    Number of Employees
    50 - 99
    Average Hourly Rate
    $85/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    14 Projects Listed

    Designli Services

    • Mobile App Development
    • Software Development
    • Web Development
    • Web Design
    • UI/UX Design
    • Software Testing
    • IoT
    • Blockchain
    • AI Development
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • AskIris
      Cross-Platform Mobile App Development Project for Health Care Company AskIris
    • Behind the Knife
      Cross-Platform Mobile App Development Project for Health Care Company Behind the Knife
    • True Load Time
      Cross-Platform Mobile App Development Project for Transportation & Logistics Company True Load Time
    • Thingealogy
      Cross-Platform Mobile App Development Project for Software & IT Services Company Thingealogy
    • Earth Technology Integration
      Web App Project for Public Safety Company Earth Technology Integration
    • MEO Continuity
      Website Development Project for Corporate Services Company MEO Continuity
    Comprehensive analysis done by DesignRush Agency Experts.

    Designli Reviews & Testimonials

    • Anonymous Founder & CEO at Innershell
      5.0
      Mobile App Development Review from Anonymous

      Designli delivered a high-quality prototype on a tight timeline. The team was responsive to feedback, met every deadline, stayed within budget, and quickly adapted to requested changes. Their expertise in app design and development was evident throughout the project and left a strong impression.

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    • Anonymous CEO at Monjour
      5.0
      AI UI/UX Design Review from Anonymous

      Designli produced a complete, functional Figma prototype for our solution. They communicated clearly through virtual meetings and stood out for their strong process, gathering feedback from multiple stakeholders and delivering on schedule. Overall, we were very impressed with their work.

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    • Anonymous CTO at Code Willing
      5.0
      AI UI/UX Design Review from Anonymous

      Designli delivered Figma wireframes that were both well-crafted and well-received by our team. The designs were clean, intuitive, and elegant, reflecting strong design intuition. Throughout the process, the team stayed organized, communicated clearly via Basecamp, and delivered everything on time.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Goodwill
    • Earthlink
    • Rotary
    • State of South Carolina
    • Secur.Space
    • Grappos
    • Michelin
    • Accel Entertainment
    • Millennium Parking Garages
    Data sourced from the agency's DesignRush profile
  • High Voltage Code Since 2010

    ELEK+RIK: Web App Development, Mobile App Development for iOS & Android, AI Integration & Development Experts for Long-Term US Projects since 2010  [... see all ELEK+RIK reviews ]
    Location
    Baltimore, Maryland
    Number of Employees
    Under 49
    Average Hourly Rate
    $60/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    18 Projects Listed

    ELEK+RIK Services

    • Mobile App Development
    • Software Development
    • Web Development
    • Blockchain
    • VR/AR
    • AI Development
    • eCommerce Development
    • Software Testing
    • IT Services
    • WordPress Website Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • Sapporo Beer Website Design & Development
      Website Development Project Sapporo Beer Website Design & Development
    • Chang Beer Web Development
      Website Development Project Chang Beer Web Development
    Comprehensive analysis done by DesignRush Agency Experts.

    ELEK+RIK Reviews & Testimonials

    • Philip Wilson
      Philip Wilson Managing Director at Premier Automation Ltd
      5.0
      Web Development Review from Philip Wilson

      ELEK+RIK team provided a streamlined process that was both simple and enjoyable. They kept to the budget and communicated well throughout the project. ELEK+RIK comes highly recommended and we would work with ELEK+RIK again if given the opportunity.

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    • George McKerrow
      George McKerrow CEO at Ted's Montana Grill
      5.0
      Mobile App Development Review from George McKerrow

      ELEK+RIK has worked on improving our React Native mobile app. We had the skeleton of an app, but they were able to do an end-to-end re-design of each of the main pages. Since then, they`ve successfully implemented around ~20 different features on our mobile app. We share a spec and design, they provide an estimate and occasionally some design options, then when completed create a PR on GitHub. Their code is well-organized, easy to follow, and rarely do we have to go back-and-forth about bugs. They are also excellent communicators - carefully following threads on Slack, effectively communicating design and engineering tradeoffs, and even producing a 10m Loom video walking through a diagram. Their communication is top-notch. They are super easy to work with even though we are on very different time zones. And, I am impressed at the speed and execution of their development.

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    • John Riley
      John Riley Executive Vice President at MediaCentric
      5.0
      Web Development Review from John Riley

      ELEK+RIK was tasked with creating a website for our company from scratch. They were professional, communicative, and dedicated to delivering an exceptional website that perfectly captured the essence of our company while exceeding our expectations. They are a talented, reliable, and customer-focused web design and development company that I would highly recommend to anyone.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Coca - Cola
    • Mercedes
    • BMW
    • VeChain
    • Sony
    • Nike
    • Toyota
    • Hyundai
    • McDonald's
    • Chang
    Data sourced from the agency's DesignRush profile
  • We Create Technology That Improves Lives, Simplifies Work, and Drives Business Results.

    Mindgrub is an award-winning tech consultancy that delivers AI-driven solutions and custom-built digital experiences that drive measurable business results. We partner with organizations to improve efficiency, accelerate growth and build whats next in the AI era.  [... view Mindgrub profile ]
    Location
    Baltimore, Maryland
    Number of Employees
    50 - 99
    Average Hourly Rate
    $150/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    4 Projects Listed

    Mindgrub Services

    • Web Design
    • AI Development
    • Mobile App Development
    • eCommerce Development
    • Web Development
    • Digital Marketing
    • WordPress Website Design
    • Branding
    • UI/UX Design
    • Staff Augmentation
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • John Hopkins University Press
      Web Design Project for Higher Education Company John Hopkins University Press
    Comprehensive analysis done by DesignRush Agency Experts.

    Mindgrub Reviews & Testimonials

    • Dozetta Lewis
      Dozetta Lewis Review from Google
      5.0

      Dozetta Lewis's Review Sourced from Google

      If you looking for a space to have away from work meetings. Look no further Mindgrub is the place. Food options are the best to order from nearby. I highly recommend Mindgrub.

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    • Carrie Gaut
      Carrie Gaut Review from Google
      5.0

      Carrie Gaut's Review Sourced from Google

      Our organization, a tech start up shares space with MG Technologies. We actually are renters. The Leadership Team at Mindgrub we consider family. What a wonderful ensemble of folks. The location is lovely, the interior is an open floor plan with considerable space engineered for meetings along with places to tuck into for invaluable peace and quiet. MindGrub has a pleasant Front Desk Coordinator who maintains shared schedules, provides true " air traffic control" of people, presents, and packages. as well as kitchens that provide abundant drinks and snacks:)It feels very much like home. Our experience has been positive and look forward to partnering with MG Technologies for years to come. #grateful

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    • Sean Heavey
      Sean Heavey Review from Google
      4.0

      Sean Heavey's Review Sourced from Google

      Great leaders in the Baltimore tech space. Very cool of them to offer their space for tech community events.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • Exelon
    • Under Armour
    • NASA
    • University of Maryland
    • Yamaha
    • Crayola
    • Adobe
    • Geico
    • The Smithsonian
    • Johns Hopkins University
    Data sourced from the agency's DesignRush profile
  • Better Teams // Better Software

    Sketch provides software development services for Fortune 500 clients and startups alike. We specialize in product delivery consulting, software development services, and cloud consulting services.  [... view Sketch Development Services profile ]
    Location
    Baltimore, Maryland
    Number of Employees
    Under 49
    Minimal Budget
    $50,000 & Up

    Sketch Development Services Services

    • Software Development
    • Cloud Consulting
    • UI/UX Design
    • eCommerce Development
    • Mobile App Development
    • DevOps Consulting
    • Staff Augmentation
    • AI Development
    • Software Testing
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Sketch Development Services Reviews & Testimonials

    • Monica
      Monica Review from Google
      5.0

      Monica's Review Sourced from Google

      Amazing and talented people. I’ve worked for both client and agency side and can can say their partnership is amazing. They truly care about ongoing operations and not just ending it at a project level. Highly recommend! Message me if you want specifics.

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    • John Andesilich
      John Andesilich Review from Google
      5.0

      John Andesilich's Review Sourced from Google

      I own a marketing firm in Troy MO and I recently met with Calvin at Sketch Development Services to discuss a software development project I have been thinking about pursuing. He was very nice, easy to speak to and even though his field is a bit out of my knowledge base, he was able to explain things in a way that made perfect sense. I look forward to working with him and his team in the future and recommend anyone looking for a software or app development company to give them a try.

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    Reviews verified by DesignRush and sourced from the agency's profile
    • U.S. Bank
    • Centene Corporation
    • Maritz
    • Change Healthcare
    • Stifel
    • Reinsurance Group of America (RGA)
    • bioMerieux
    • CareSource
    • CENTEGIX
    • Purina
    Data sourced from the agency's DesignRush profile

About The Author and Expert Reviewer

Robert de Wit has a diverse background in advertising, marketing, IT, and healthcare. With a history as both a copywriter and a video game journalist, he specializes in SEO, long-form content creation, and crafting compelling copy that drives results. Currently, he writes about website and interface design at DesignRush, delivering the latest industry insights and analysis.

Branko Dimitrijević is a multifaceted creative and a recipient of 33 design awards. Throughout his 12-year career, he has delivered over 165 web design projects, showcasing his expertise in website optimization, UI/UX design, logo design, and video animation. He is now dedicating his talent and skills to being one of the creative geniuses at DesignRush.