Large UI UX Design Agencies (2026)

Monks run a single operating model rather than a federation of separately managed offices, which is the specific thing that makes 7,500 people across 33 countries usable rather than merely impressive. Named delivery cities include San Francisco, Los Angeles, New York, Mexico City, Buenos Aires, São Paulo, London, Amsterdam, Stockholm, Dubai, Singapore, and Shanghai. For a brand shipping the same experience localised across a dozen markets simultaneously, nobody else here comes close.

The award record backs the craft claim, with 128 Cannes Lions and over 225 FWA awards. The trade is discipline mix. This is a production and technology organisation first, and the deep research practice that a Huge or a frog can put behind a UX programme is not the centre of gravity.

Over 2,000 people across eight offices spanning North America and Australia, with design, technology, and business strategy operating on the same programme. Where Monks scales production, frog scales thinking, and that is the meaningful difference between the top two entries here.

The work sits where a design problem and an operating model problem turn out to be the same problem. Scale cuts both ways. Two thousand people is a delivery machine, and the experience is closer to a consultancy engagement than a design collaboration. Verified marketplace reviews are thinner than the client list implies.

Over 1,200 people across 13 offices in North America, Latin America, Europe, and Asia Pacific. The discipline coverage is the broadest on this page, with strategy, UX, technology, data, media, and campaign all under one roof, which matters when a brief spans positioning, digital products, CRM, and environmental design at once. Their first client was IKEA, and they led the redesign of New York City's municipal website.

Worth knowing before you commit. Their Glassdoor rating sits at 3.6 across more than 700 employee reviews, which is middling for the category. At this size internal churn tends to surface as team changes mid-engagement, so ask directly how long your named team has been together.

The smallest agency here that still clears the multi-market bar, with roughly 450 people across eight offices on three continents. Brooklyn, Portland, São Paulo, Rio, Copenhagen, Belgrade, Los Angeles, and Atlanta all produce work, and the cross-cultural product thinking that comes from teams operating in different digital markets is a real asset rather than a claim.

What separates them from everything above is that the scale has not diluted the craft. Apple Music, the Virgin America booking experience, and Google Arts & Culture shipped as products that performed. Engagements start around $450,000, so the capacity is not cheap.

Over 500 people from a New York base with three further offices, structured around pairing creative work with genuine engineering depth rather than treating build as a downstream phase. The capacity to run several workstreams without subcontracting the hard parts is genuine.

It ranks below the four above on footprint. Four offices is the narrowest geography on this page, which limits the multi-market argument considerably. The marketplace review record is also thin relative to the client list and the price.