Partner with top UI/UX design companies in the USA to create research-backed, conversion-focused digital experiences that drive engagement, retention, and revenue. Select from our directory of companies reviewed by 12 industry experts based on over 4,000 verified client reviews.

United States × Music × $50,000 & Up × Clear Filters
  • #1 App Marketing Agency

    PreApps is the World's Leading App Growth Agency. Over the past 13+ years, the PreApps team has helped the most successful apps in the world launch and scale their app businesses to reach Millions of Downloads through our proprietary marketing programs...

    Top Services:

    • Digital Marketing
    • CRO
    • Social Media Marketing
    • Video Marketing
    • Design Services
    • Show more
    Location
    Boston, Massachusetts
    Number of Employees
    Under 49
    Average Hourly Rate
    $200/hr
    Minimal Budget
    $50,000 & Up
    Portfolios Count
    8 Projects Listed

    PreApps Services

    • Digital Marketing
    • CRO
    • Social Media Marketing
    • Video Marketing
    • Design Services
    • Public Relations
    • Video Production
    • UI/UX Design
    • Advertising
    • PPC
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Retail Industry
    • Hospitality Industry
    • Film Industry
    Data sourced from the agency's DesignRush profile

    PreApps Reviews & Testimonials

    • Alice Al-Nomani
      Alice Al-Nomani Chief Human Resources Officer at Web Design Sun
      5.0

      App Marketing Review from Alice Al-Nomani

      We contacted the PreApps agency to optimize our App. The scope of work included a comprehensive approach to improving the app's visibility, recommendations for optimizing and converting site traffic into installs, and increased downloads and improved user feedback through app metadata optimization in app stores; comprehensive analytical reports on the effectiveness Throughout our collaboration with the PreApps agency, we had clear and transparent communication, regular updates and reports, and all time frames, deadlines, and plans were met. At the same time, agency staff were flexible and open to feedback and recommendations, offering solutions and adjustments when needed. They were quick to respond to all needs, concerns, and requests for information, and provided support once the optimization strategy was PreApps' work stands out for its comprehensive approach, which takes into account everything from keywords and phrases to increasing visual elements and user engagement. We particularly like their personalized approach and continued support once the optimization is launched.

    • Julia Smith
      Julia Smith Director of Community & Audience Development at Hearst Magazines
      5.0

      App Marketing Review from Julia Smith

      The project's measurable outcomes indicated tremendous development and success. First, we saw a significant rise in app downloads and user acquisition, showing that the mobile app marketing methods we adopted were effective. Second, user engagement measures such as average session time and retention rates improved significantly, indicating a better user experience and app performance. Finally, the app's visibility and search rankings in app stores improved dramatically, as indicated by increased organic app store impressions and conversions, demonstrating the efficacy of the app store optimization efforts. PreApps provided excellent project management throughout our collaboration. They routinely delivered on time, meeting goals and deadlines. Furthermore, their attention to our demands was exceptional, as they addressed any issues or requests for assistance in a timely and courteous manner.

    • Alex Main
      Alex Main Review from Google
      5.0

      Alex Main's Review Sourced from Google

      PreApps helped us take our mobile app to the next level with targeted marketing that really worked. Their campaigns were creative, effective, and backed by solid research. We saw immediate improvements in user downloads and engagement. Their team is responsive, professional, and genuinely passionate about what they do. We couldn't have asked for a better experience.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews

Frequently Asked Questions About UI/UX Design Companies in the USA

What services do UI/UX design companies in the USA offer?

They offer strategic, research-driven, and user-focused services, including: 

  • UX research and strategy
  • Information architecture and user flow
  • Wireframing and prototyping
  • User interface (UI) design
  • Usability testing and iteration
  • Design system and documentation

In addition to these common services, many UI/UX design companies in the USA offer graphic design, motion design and animation, accessibility and compliance support, UX audit, and consultancy services

What is the difference between user interface and user experience design?

A user interface design (UI design) focuses on what users see and interact with. It includes layout, typography, color, iconography, interactive components, and design systems.

On the other hand, user experience design (UX design) prioritizes how the product works for users, including user research, journey mapping, personas, problems, definition, information architecture, user flows, and usability testing and iteration

When should you consider hiring a specialized UI/UX design company versus a full-service agency?

Consider hiring a specialized UI/UX design company in the USA if you are focusing on product usability, user flows, or interface design, such as redesigning a website user experience. These companies have deeper expertise in research methods, prototyping tools, and usability testing. 

Choose a full-service agency when you need UI/UX design bundled with branding or development. Full-service companies offer convenience and continuity across disciplines, but their UX work may be handled by generalists rather than dedicated specialists. 

How long do UI/UX design projects normally take?

Project timelines tend to scale with the complexity and scope of the engagement: 

  • Smaller UX design efforts (like audits, interface refreshes, or lightweight UX engagements) are usually completed within 2 weeks to 3 months. 
  • Standard UI/UX design projects for websites or mobile apps typically span 3 to 5 months
  • Larger and more complex projects can take over 6 months.

What are the best UI/UX design companies in the USA?

The best UI/UX design companies in the USA that have helped businesses turn engagement into brand loyalty and revenue include:

  1. UX Team 
  2. Goji Labs 
  3. Ungrammary 
  4. ELEKS 
  5. Azumo 
  6. Clay
  7. Digital Silk 
  8. DD.NYC 
  9. Design in DC 
  10. Bilberrry 
  11. Baunfire
  12. IT Monks Agency 
  13. Eleken 
  14. CreativeWeb 
  15. Flyaps 

What questions should you ask before hiring a UI UX design agency in the USA?

The following questions can help assess whether an agency is equipped to deliver meaningful, user-centered outcomes for your product. 

Relevant Background 

  1. What types of products or industries do you specialize in? 
  2. Can you share UX case studies similar to my tech stack, design style, and project requirements? What were the measurable results? 
  3. How do you validate design decisions? 

Services and Processes 

  1. Can you walk me through your end-to-end design process? 
  2. How do you create a design system for long-term scalability? 
  3. How do you approach quality assurance, testing, and security? 
  4. How do you address accessibility and compliance requirements? 

Related to Your Project 

  1. How will you ensure that your designs align with my brand and target users? 
  2. What tools, assets, and deliverables are included in my project package? Who owns these components after product launch? 
  3. What does post-launch support or iteration look like? Does this include developer handoffs? 

What deliverables should you expect by the end of your project?

Expect to receive the following deliverables from your USA UI/UX design agency: 

  • User research findings 
  • Information architecture (e.g., sitemaps and user flows) 
  • Wireframes 
  • High-fidelity visual designs 
  • Interactive prototype 
  • Style guide or design system 
  • Production-ready files (e.g., Figma or Sketch source files) and developer-ready specs 

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