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Software Development Company

Square63

Software studio building Ruby on Rails web apps, mobile apps and AI agents for founders and product teams

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About Square63

Square63 creates and maintains web and mobile applications for start-ups, agencies and technology teams. It specialises in Ruby on Rails, Angular, ReactJS, React Native and native iOS and Android work, and it also builds production AI agents. It has operated since 2011.

What Square63 offers

Web development — web apps in Ruby on Rails or on the PHP and LAMP stack, including Drupal, WordPress, Symfony and Laravel.
MVP development — getting a first version to market so it can be tested with early adopters.
Mobile development — native apps for iOS and Android.
Dedicated teams — developers who join a client full-time while the client manages the project.
AI agent engineering — custom production AI agents, plus taking over MVPs that have outgrown their code.

Who it works with

Founders, CTOs and product teams, along with agencies. Past partners include entrepreneurs, industry figures and public bodies.

Key facts

Founded: 2011

Profile written by TrustList from the business's own published information, Oct 2026.

Categories & features

Rankings

As of 2026-10-05. Organic ranks only; sponsored placements are never ranks.

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