Look it up in the App Store or Google Play, confirm it still exists, and check the last update date. A portfolio piece that stopped updating two years ago tells you the relationship ended.
Eight studios that have shipped apps people actually use, profiled with ownership, verified work, and the situation each one fits.
App design is a narrower field in New York than branding or web, and it has shrunk. Studios that once anchored it have been acquired, absorbed, or repositioned into other categories, and several names still circulating on other lists no longer do this work.
Eight is what survives verification. Each has shipped apps that reached users, and each is checked for whether it designs, builds, or both. Six are headquartered in New York; ustwo and Fantasy have New York studios and headquarters elsewhere. Six are independent.
Three checks before you shortlist.
Look it up in the App Store or Google Play, confirm it still exists, and check the last update date. A portfolio piece that stopped updating two years ago tells you the relationship ended.
Some studios hand off to your engineers, some ship to the store. Both are legitimate, and the price gap between them explains most proposal differences.
Empty states, error handling, permission prompts, settings. Studios that have shipped will have them.
Focus, ownership, and headquarters. Studios based outside New York are flagged. No scores — the fit is the point.
| # | Studio | Focus | Ownership & HQ | Best for |
|---|---|---|---|---|
| 01 |  Clay Global |
App UX & brand | Independent | App UX + brand scoped together |
| 02 |  Work & Co |
Production apps & platforms | Holding (Accenture) | A production-grade app |
| 03 |  ustwo |
High-craft app work | Employee-owned · B Corp HQ London | Consumer craft + technical rigour |
| 04 |  Big Human |
Idea-to-launch apps | Independent | Idea-to-launch startups |
| 05 |  Utility |
Design-led app dev | Independent | A partner that builds and ships |
| 06 |  Fantasy |
Large-scale & AI apps | Independent SF & NY | AI-heavy, high-visibility apps |
| 07 |  Huge |
App & digital at scale | Holding (AEA Investors) | Multi-market app programme |
| 08 |  Dom & Tom |
Enterprise mobile | Independent | App tied to enterprise backend |
Each has shipped apps that reached users. Checked for whether it designs, builds, or both. Ownership and headquarters marked.
How we rank →
App UX and brand from one team.
Apps and platforms used by millions.
Two decades of high-craft app work.
The studio behind HQ Trivia and Vine.
Design-led app development.
Large-scale app design with an AI-forward bent.
Global app and digital work at scale.
Enterprise mobile with deep backend integration.
Start from the app in front of you, not the ranking.
Huge.