Top API & Integration Development Companies in Dallas, TX

We ranked 6 API and integration developers in and around Dallas, TX on client reviews, how many are verified, service focus and profile completeness. Includes companies in nearby Plano and Addison. Updated October 2026. How rankings work

Specialists who connect the tools a business already uses, build APIs and automate the data flowing between systems.

Rank 1
Improving
IT consultancy offering custom software development, data engineering, AI solutions and technical training from offices across North and Latin America.
No reviews yet
Plano, TX
- Custom Software Development
- API & Integration Development
- AI & Automation
Team
1,000+ people
Rank 2
Creatuity
Plano e-commerce firm building ERP-integrated online stores on Adobe Commerce, Shopify Plus and BigCommerce.
No reviews yet
Plano, TX
- Web Development
- API & Integration Development
- AI & Automation
Rank 3
FortyAU
Nashville software consultancy whose senior engineers build web, mobile, data and AI systems for healthcare, financial services and other regulated industries.
No reviews yet
Dallas, TX
- Custom Software Development
- AI & Automation
- API & Integration Development
Team
100-249 people
Rank 4
Entrance Consulting
Houston software consultancy building custom enterprise, web and desktop applications, plus Microsoft 365, SharePoint and data analytics work.
No reviews yet
Dallas, TX
- Custom Software Development
- API & Integration Development
- Web Development
Rank 5
HatchWorks AI
Atlanta-based AI services firm that plans, builds and governs AI systems, agents and data platforms with nearshore engineering teams.
No reviews yet
Dallas, TX
- AI & Automation
- Custom Software Development
- API & Integration Development
Rank 6
7T
Dallas-area firm that builds AI agents, custom software, mobile apps and enterprise integrations for mid-market companies.
No reviews yet
Addison, TX
- Custom Software Development
- AI & Automation
- Mobile App Development