How many UI UX Design agencies are in Lisbon, Portugal?

3 are listed on Agency List in Lisbon, Portugal. 3 of them have been assessed on the Agency List Score as of September 2026.

Which UI UX Design agency in Lisbon, Portugal is ranked highest?

Flatstudio, with an Agency List Score of 94.8, ranks #1 of 3 assessed agencies in UI UX Design in Lisbon, Portugal.

How is the ranking determined?

By Agency List Score, within the UI UX Design in Lisbon, Portugal cohort of 3 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.

Top UI UX Design Agencies in Lisbon, Portugal

Ranked · 3 assessed

Ordered by Agency List Score

#1 of 3 assessed

Flatstudio

Develops complex interfaces for web, mobile, and AR platforms

Product Design

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#2 of 3 assessed

Hi Interactive

Crafting scalable user interfaces with AI and design systems

Design Systems

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#3 of 3 assessed

Bliss Applications

Crafts digital experiences with AI and agile teams

Design Systems

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About this ranking

What this page ranks

This page ranks the 3 UI UX Design agencies in Lisbon, Portugal that have been assessed on the Agency List Score, out of 3 listed.

The score measures how well an agency documents its own work in public — named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than described as the client's own results. It does not measure client satisfaction, price, or availability.

Cohorts and awards

Agencies are compared within a cohort — here, UI UX Design in Lisbon, Portugal. A cohort must be large enough to express the band being awarded: at least 8 assessed agencies for a top 25% award, 20 for top 10%, 40 for top 5%, and 300 for top 1%. This one holds 3, so no award can be issued here.

Read the full methodology

Paid placement

Partner agencies can buy a labelled placement block above the ranking on this page. It is always marked as paid and is never mixed into the ranked list.

Placement is paid; it does not affect the ranking, cohort membership, or any agency's score. Ranking position, cohort membership and the score itself are not for sale.

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Services in Lisbon

Accessibility Audits Design Systems Interaction Design Product Design Prototyping Usability Testing UX Research Wireframing

Other categories in Lisbon

Digital Marketing PR and Communications Mobile App Development Custom Software Development Staffing and Outsourcing Web Development AI and Machine Learning IT Services and Support Business Consulting Cloud and DevOps

Questions

How many UI UX Design agencies are in Lisbon, Portugal?: 3 are listed on Agency List in Lisbon, Portugal. 3 of them have been assessed on the Agency List Score as of September 2026.
Which UI UX Design agency in Lisbon, Portugal is ranked highest?: Flatstudio, with an Agency List Score of 94.8, ranks #1 of 3 assessed agencies in UI UX Design in Lisbon, Portugal.
How is the ranking determined?: By Agency List Score, within the UI UX Design in Lisbon, Portugal cohort of 3 assessed agencies. The score is computed from evidence published on each agency's own website: named clients, quantified outcomes, and whether the outcome is attributed to the agency. Paid placement does not affect it.