ustwo
A digital product studio designing and building services, applications and connected experiences.
Product designProduct developmentStrategy
- Location
- London, United Kingdom
- Founded
- 2004
Factbase category report · Updated Aug 2026Top 10
Top 10
UI/UX Design Companies
An editorial guide to established ui/ux design companies, selected for relevant services, specialization, public work and market presence.
Best forShortlisting experienced partners
Primary signalRelevant service specialization
CoverageGlobal companies
Ranking typeEditorial assessment
The shortlist
Top 10 companies
Ranked using public company information, specialization, client feedback and market presence.
Clay
A digital product and branding agency focused on interfaces, identity and customer experience.
UI/UX designBrandingWeb design
- Location
- San Francisco, United States
- Founded
- 2016
Work & Co
A digital product agency designing and building platforms, commerce and brand experiences.
Digital productsProduct strategyTechnology
- Location
- Brooklyn, United States
- Founded
- 2013
Fantasy
A product innovation studio known for high-end digital experiences and interface design.
Product designExperience designStrategy
- Location
- New York, United States
- Founded
- 1999
Huge
A creative growth company combining experience design, technology, brand and marketing.
Experience designTechnologyBrand
- Location
- Brooklyn, United States
- Founded
- 1999
Instrument
A digital agency working across brand, product and marketing experiences.
BrandDigital productsCampaigns
- Location
- Portland, United States
- Founded
- 2005
Globant
A digital engineering company providing software, design, data and transformation services.
Digital engineeringProduct designCloud
- Location
- Luxembourg
- Founded
- 2003
Accenture
A global professional services company combining strategy, technology, operations and creative services.
ConsultingTechnology servicesOperations
- Location
- Dublin, Ireland
- Founded
- 1989
IDEO
A design company known for human-centered product, service and organizational design.
Product designService designDesign strategy
- Location
- Palo Alto, United States
- Founded
- 1991
frog
A global creative consultancy working across products, services, brands and connected experiences.
Product designExperience designStrategy
- Location
- San Francisco, United States
- Founded
- 1969
Company comparison
| Company | Headquarters | Founded | Selected services | Technology |
|---|---|---|---|---|
| ustwo | London, United Kingdom | 2004 | Product design, Product development | Mobile, Web |
| Clay | San Francisco, United States | 2016 | UI/UX design, Branding | Design systems, Web |
| Work & Co | Brooklyn, United States | 2013 | Digital products, Product strategy | Web, Mobile |
| Fantasy | New York, United States | 1999 | Product design, Experience design | Digital products, Design systems |
| Huge | Brooklyn, United States | 1999 | Experience design, Technology | Digital platforms, Data |
How we selected these companies
Factbase considers relevant services, technology expertise, years in business, public portfolios, client feedback and geographic reach. Rankings are editorial judgments, not mathematically objective scores.
Read the full methodology →What to look for
- Direct experience with the project type you are commissioning.
- A clear delivery model, realistic milestones and named responsibilities.
- Evidence that is recent, relevant and attributable.
- References whose scope resembles your own brief.
FAQ
How often does Factbase review this ranking?
We revisit category pages when material public information changes and date each report so readers can judge its freshness.
Can a company pay for a ranking position?
No. Commercial relationships do not determine editorial order. Any future sponsored placement would be labeled clearly.
Should I contact more than one company?
Yes. A short discovery conversation with two or three relevant teams is usually the clearest way to compare working style, scope and cost.