Top UX Design Agencies in Spain

Founded in Kyiv in 2015, RegisTeam is a growth marketing agency that works with clients in the United States, Europe and Australia. Its work is built around two disciplines that carry most of its projects: search engine optimization and pay-per-click advertising, with CRM consulting and analytics supporting both. On the SEO side, the team handles technical audits, content and link building, and a newer line of work on visibility in AI search — making sure brands are cited in answers from ChatGPT, Google AI Overviews and similar tools. On the paid side, it plans and manages Google Ads accounts, from launch and tracking setup to ongoing optimization. CRM and automation projects connect marketing data to sales, so lead quality can be measured rather than guessed. According to its Clutch profile, RegisTeam has delivered more than 1,300 projects in over 25 countries and holds a 5.0 rating across 69 client reviews.

Keycode Agencia Digital is a Mexican digital agency based in Monterrey, with a legal entity in Plano, Texas, that serves clients on both sides of the border. Its specialties are SEO, web design and development, Google Ads and branding. SEO work covers technical and local optimization, link building, and GEO/LLMO for visibility in AI-generated answers. The agency also builds e-commerce stores, runs conversion rate optimization, and implements AI integrations and ERP and CRM solutions. Clients it lists include Doorvel and Serviacero. It counts clients in medicine and e-commerce. It also offers UX design. Keycode works with businesses in Mexico and Texas, including Dallas and Houston, and in Spain and US states such as Massachusetts, Minnesota, Virginia and Washington. It is a sensible option for Mexican and Spanish-speaking companies, from online retailers to clinics, that want marketing, a new site and business software delivered by the same partner, and firms reaching customers in both Mexico and the US.

Arke is an independent full-service agency in Brighton, founded in 2017, with a team of 10 to 49 people. The agency is credited with winning Best Independent Agency of the Year at the European Agency Awards 2025. The agency connects brand strategy and identity with creative work and performance advertising across TV, programmatic, out-of-home and social media. It also runs organic social media, email marketing, SEO, conversion rate optimization and web development, and reports results through ROI dashboards. Its client sectors include insurance and home services. It also offers market research, content marketing and work on visibility in AI-driven search. Arke works with clients across the UK, including Manchester, and in France and Spain. Consumer brands and service companies ready to invest in broadcast and outdoor media alongside digital channels, and that want brand building and performance marketing planned together and measured in the same reporting, will get the most from it.