Top UX/UI Design Agencies
105 agencies foundAvg. rating: 5.032 specializationsUpdated Mar 2026
5.0
5 reviews
New York, New York11-502021
Composite is a design agency building websites used by millions that are easily updated by internal teams. We are a Webflow Enterprise partner, leveraging the platform to build websites with client-friendliness at the core, from clear class-naming conventions to reusable components so your team feels confident managing updates.
“Composite has been with us through multiple chapters of GoodWork’s growth. Their strategic thinking and depth of experience help us move faster and make better decisions that continue to drive real...”
— CMO, Real American Beer
Send a MessageView Profile
View ProfileMessage
Frequently Asked Questions About UX/UI Design
What does a UX/UI design agency do?
UX/UI design agencies create user-centered digital experiences through research, strategy, and design. They conduct user research, develop personas, create wireframes and prototypes, design visual interfaces, and test usability to ensure products are both functional and engaging. Their services typically include information architecture, interaction design, responsive design, and ongoing optimization based on user feedback.
How much do UX/UI design services cost?
UX/UI design project costs vary widely based on scope, complexity, and deliverables. Small projects like landing page design may range from $5,000-$15,000, while comprehensive app or website redesigns can cost $25,000-$100,000+. Ongoing retainer relationships for design systems and iterative improvements typically range from $10,000-$30,000 per month depending on the agency's expertise and project requirements.
How do I choose the right UX/UI design agency?
Look for agencies with proven experience in your industry and project type, strong portfolios showcasing similar work, and a clear design process that includes user research and testing. Evaluate their approach to accessibility, mobile responsiveness, and design systems. The best agencies combine technical expertise with strategic thinking and can demonstrate measurable improvements in user engagement and conversion rates.