Square63

About Square63

Square63 is a Houston-based software development agency founded in 2011, building AI agents, LLM systems, and custom web and mobile applications for startups and tech teams. They work across Ruby on Rails, React, React Native, Python, FastAPI, and LangChain, with 18 verified Clutch reviews covering projects from $5K to $130K.

Who Square63 Is Best For

Square63 is best for startup and product teams that need an experienced development partner for AI agents, LLM integrations, or custom web and mobile apps at a competitive price point. Their $50-99/hr rate and $5K minimum make them accessible for early-stage companies needing quality engineering without premium agency pricing. Less suited for organizations requiring large dedicated teams or enterprise-level SLAs.

Why Choose Square63

Things to Consider

Square63 Services

Selected Work

YipSMS

YipSMS

Scalable SMS marketing platform for Shopify merchants with 97% deliverability, one-click setup, and automated flows (reported 5x SMS ROI).

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Kanari

Kanari

Real-time customer feedback SaaS with Redshift analytics, fraud detection, and enterprise reporting.

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Phillip Jeffries

Phillip Jeffries

Luxury wallcovering ecommerce experience with Microsoft NAV / ERP sync and real-time inventory.

View case study

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