Interaction Design Agencies in London

4 interaction design agencies are listed in London, Greater London. 4 have been assessed on the Agency List Score as of October 2026; the highest-ranked is Every Interaction at 74.9.

Ranked · 4 assessed

Ordered by Agency List Score
#1 of 4 assessed
Every Interaction
75

UX design for digital products and enterprise-level apps

Accessibility AuditsDesign SystemsInteraction Design
#2 of 4 assessed
Biglight
74

Designs digital experiences for growth and customer engagement

Accessibility AuditsDesign SystemsInteraction Design
#3 of 4 assessed
Lighthouse
73

UX and UI design for complex product challenges

Accessibility AuditsInteraction DesignProduct Design
#4 of 4 assessed
Sandbar
72

Creating digital experiences with AI and full stack engineering

Design SystemsInteraction DesignProduct Design

About this ranking

What this page ranks

This page ranks the 4 interaction design agencies in London, Greater London that have been assessed on the Agency List Score, out of 4 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, Interaction Design in London, Greater London. 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 4, 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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Questions

How many interaction design agencies are in London, Greater London?
4 are listed on Agency List in London, Greater London. 4 of them have been assessed on the Agency List Score as of October 2026.
Which interaction design agency in London, Greater London is ranked highest?
Every Interaction, with an Agency List Score of 74.9, ranks #1 of 4 assessed agencies in Interaction Design in London, Greater London.
How is the ranking determined?
By Agency List Score, within the Interaction Design in London, Greater London cohort of 4 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.