AGENCY LIST

UI UX Design Agencies in California

28 UI UX Design agencies are listed in California, United States. 2 have been assessed on the Agency List Score as of September 2026; the highest-ranked is Lazarev at 74.7.

Ranked · 1 of 2 assessed

Ordered by Agency List Score
#1 of 2 assessed
Lazarev
75
Verified

Designs AI-native B2B products and user experiences

Design SystemsProduct DesignUsability Testing
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Also in California · 27 not ranked here

26 have not yet been assessed on the Agency List Score. Alphabetical.
API Portals For Digital TransformationView profile →Bicoastal AgencyView profile →Border UXView profile →ConcepterView profile →CONTUS TechView profile →Create ApeView profile →DefineryView profile →Digital KarmaView profile →DworkzView profile →Fake CrowView profile →Fluidesigns SaaS UX Design AgencyView profile →GeekyAntsView profile →GotoresearchView profile →IOXDView profile →King TideView profile →Leopard DesignView profile →Lion InteractiveView profile →MellbeView profile →MomentumdesignlabView profile →NeuronView profile →Pulse Design GroupView profile →The UX DepartmentView profile →UEGroupView profile →UX Design AgencyView profile →

About this ranking

What this page ranks

This page ranks 1 of the 2 assessed UI UX Design agencies in California, United States — the ones carrying a published score — out of 28 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 California, United States. 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 2, so no award can be issued here.

The 26 UI UX Design agencies not yet assessed are listed on this page but not ranked.

One more was assessed and no published evidence of its work was found, so no score is shown for it.

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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Questions

How many UI UX Design agencies are in California, United States?
28 are listed on Agency List in California, United States. 2 of them have been assessed on the Agency List Score as of September 2026, and 1 of those carry a published score.
Which UI UX Design agency in California, United States is ranked highest?
Lazarev, with an Agency List Score of 74.7, ranks #1 of 2 assessed agencies in UI UX Design in California, United States.
Why are 27 UI UX Design agencies listed here but not ranked?
26 of the 28 listed have not yet been assessed on the Agency List Score. One more was assessed and no published evidence of its work was found, so no score is shown for it. They each have a profile and are listed below the ranking, alphabetically, rather than being hidden or mixed into it.
How is the ranking determined?
By Agency List Score, within the UI UX Design in California, United States cohort of 2 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.