Top 14 UI UX Design Agencies Across the Globe (2025)

Design is a collaborative process. Ideally, your agency should answer this question by saying that you will be involved at every stage of the design project: from discovery to design. The agency should also clarify its expertise and mention some of its previous project outcomes.

Expect a wide-ranging answer to this question. Most UI/UX design agencies promise to deliver websites/apps three to four months into the partnership. Any agency that promises faster deliveries is probably going to miss the deadline. The best thing for clients to do is to collect multiple cost estimates from different providers and then compare them side-by-side.

The design process is rough. At some point (usually very early into projects) differences of opinion between clients and designers are bound to occur. Clarify the agency’s stance on this topic before you hire them. Ideally, your agency should walk you through your collective design and minimize the risk of friction.

Do not hire a UI/UX agency based on their portfolio alone. Designers often tailor their portfolios to appear as if they are perfect for addressing a client’s requirements. Instead, ask agencies to share designs they are most proud of.

Determining an agency’s suitability becomes much easier when both parties are clear about their needs and motivations.