Software Development Company in the USA
Custom software, web and mobile app development for US businesses, from a Texas-registered company with rates from $35 per hour.
Your US Software Development Partner
Three Circle builds custom software, web applications and mobile apps for US startups and businesses. We are registered in Sachse, Texas, and our team works remotely with clients across the United States, with a second office in Poole, UK.
Registered in Sachse, Texas, with a US phone line and pricing in US dollars.
Web, mobile, .NET, AI and cloud from one team.
Including an HR platform with 5,000+ users and a fitness app with 1,000+ downloads.
Software Development for US Businesses
Portals, dashboards and internal tools built around your processes.
Customer-facing web apps and iOS, Android and Flutter mobile apps.
Software for fintech, healthcare, real estate, logistics, retail and more.
Scalable applications on Azure and AWS.
Regular demos, progress reports and one point of contact.
Maintenance, monitoring and improvements after launch.
Work with a US-Registered Development Company
Book a free online consultation and get clear advice, a realistic timeline and a transparent quote in US dollars.
What We Build for US Businesses
From startups to established companies, we build software that helps US businesses grow:
Customer Portals and SaaS
Secure web platforms for your customers and partners.
Mobile Apps
iOS, Android and Flutter apps for customers and field teams.
Legacy Modernization
Older systems upgraded to modern, supported technology.
Why Choose Three Circle in the USA?
Three Circle is a Texas-registered software company that works remotely with businesses across the United States, so you get a US-registered partner, clear pricing in US dollars and one team that delivers complete products.
Texas-Registered Company:
Registered in Sachse, Texas, with a US phone line: +1 (832) 464-8175.
Full-Stack Expertise:
.NET, React, Angular, Node.js, Python, Flutter and native mobile.
Ongoing Support:
We stay with you after launch.
US and UK Presence:
A US-registered company with a second office in Poole, UK.
Transparent Communication:
Regular demos, clear reports and honest estimates.
Reliable Delivery
Clear milestones keep your project on schedule.
Software Development Services for US Companies
Three Circle is a custom software development company registered in Sachse, Texas, founded in 2019. Our team of 15–30 developers, designers and QA engineers works remotely with startups and businesses across the United States, through video calls, shared project boards and regular demos, with a second office in Poole, UK.
Custom Software Development
Business applications, customer portals and internal tools built around how your team works. See our custom web development services.
ASP.NET and .NET Development
Secure enterprise applications and APIs on Microsoft .NET, plus .NET migration for legacy systems. You can also hire dedicated .NET developers.
Mobile App Development
iOS, Android and Flutter apps for customers and field teams. See our mobile app development services.
MVP Development for US Startups
Get a free clickable design of 5–6 key screens with no obligation. A starter MVP costs $3,000, or $1,500 when you claim the free design. See our MVP development offer.
AI and Chatbot Development
AI chatbots and LLM features that automate support and internal work.
Cloud and DevOps
Azure and AWS hosting, CI/CD and monitoring. See our cloud development services.
Why US Companies Choose Three Circle
- Texas-registered company: registered at 7119 Parkwood Dr, Sachse, TX 75048, with a US phone line.
- Clear pricing in US dollars: rates from $35 per hour and projects from $1,000, with a written estimate before work starts.
- Proven remote delivery: two-week sprints, demos and progress reports, so you always know where your project stands.
- One team for everything: design, web, mobile, cloud and support from the same team.
- In business since 2019: real products in use, from an HR platform with 5,000+ users to apps with 1,000+ downloads.
What a US Client Says
“A trusted extension of our delivery team. Working with Hassan and Three Circle has given Nexuss Strategies a dependable way to scale technical delivery for our clients. If you need reliable technical talent, coordinated project support, and a partner who can help get the job done, Three Circle is an excellent choice.”
Christopher Johnstone, Nexuss Strategies (verified Trustpilot review, USA)
US Websites We Have Designed and Built
We design, build, optimize and maintain websites for US businesses and non-profits. A few of our US clients:
- Foaming Foamtastic (California and Texas): a foam party and events website with service pages, a gallery and quote requests.
- Big Camel Printing: a printing and custom merchandise website for individual and bulk corporate orders.
- Helping Women and Children in Poverty Inc (Lathrop, California): a non-profit website with Stripe donations, volunteer sign-up and events.
- Luminous Library: a book publishing services website with manuscript submission and live chat.
- Spartan 28 Fitness: a personal training website with programs, clear pricing and inquiry forms.
For each one we handled website design, WordPress development, SEO and marketing, and ongoing maintenance. See our website design and development services.
Industries We Serve Across the US
We build software for fintech and financial services, healthcare, real estate, retail and eCommerce, logistics and courier, insurance, construction and education. See all industries we serve.
Where We Work
We work remotely with businesses anywhere in the United States. Meeting times and working-hour overlap are agreed with each client at the start of the project, and calls and demos are scheduled in your time zone. For businesses in North Texas, see our Dallas software development page.
Three Circle (US registered address)
7119 Parkwood Dr, Sachse, TX 75048
Phone: +1 (832) 464-8175
Email: info@threecircle.io
Software We Have Built for US Clients
CannAvance: Enterprise Healthcare and Cannabis SaaS
A large-scale SaaS ecosystem with 10 role-based portals for patients, physicians, dispensaries, labs, regulators and executives, built with React, Python, .NET, GraphQL and AI. Read the CannAvance case study.
Grant Intel: AI-Powered Grant Discovery SaaS
An AI platform that helps businesses find grants, check eligibility and manage applications, built with Next.js, Python and large language models. Read the Grant Intel case study.
Restaurant Online Ordering and POS Platform
A multi-branch restaurant platform with online ordering, custom POS, menus, payments and inventory, used by 5+ restaurants. Read the restaurant platform case study.
LuvInvite: Digital Invitation Platform on Flutter, .NET and Azure
LuvInvite lets users design custom digital invitations from elegant templates for weddings, birthdays and events, share them and manage guest registries. We built the web and mobile apps with Flutter, a .NET back end and Microsoft Azure cloud hosting.
MomoMi: Blockchain Crypto Wallet with Node.js and LLM Features
MomoMi is a sleek, dark-mode crypto wallet and finance app for secure digital-asset transactions on a smartphone. We built it with a Node.js back end, blockchain integration for wallet transactions and AI features powered by a large language model (LLM).
See more in our courier ERP case study and our portfolio.
Want results like these? Tell us about your software project and get a free consultation.
Our Software Development Process
- Discovery: an online workshop to understand your goals, users and budget.
- Proposal: scope, timeline, team and a clear price in US dollars.
- Design: wireframes and prototypes you can review before development.
- Development: two-week sprints with regular demos.
- Testing and launch: quality, security and performance checks before go-live.
- Support: maintenance, monitoring and new features.
Software Development Engagement Models and Pricing
Choose the way of working that fits your budget and timeline:
Fixed-Price Projects
Best for MVPs and projects with a clear scope. You agree on price, timeline and features before development starts.
Time and Materials
Flexible for products that will evolve. You pay for actual development time and can change priorities after every sprint.
Hire Dedicated Developers
Add experienced developers, designers and QA engineers to your team on a monthly basis for long-term development.
Want a quick budget? Use our app development cost calculator or request a free estimate.
Ready to Start Your Software Project?
Book a free consultation and get a clear plan and quote in US dollars.
- FAQs
Frequently Asked Questions
Three Circle is registered at 7119 Parkwood Dr, Sachse, TX 75048. Our team works remotely with clients across the United States, and we have a second office in Poole, UK.
Custom software, ASP.NET and .NET development, web applications, iOS, Android and Flutter apps, MVPs, AI chatbots, cloud solutions, UI/UX design and software consulting.
We work remotely using video calls, shared project boards and two-week sprint demos, with one point of contact who keeps you updated.
Our rates start from $35 per hour and projects start from $1,000. A starter MVP costs $3,000, or $1,500 with our free clickable design. Try our cost calculator or request a free estimate.
Yes. We build first products for startups, often starting with our MVP offer, and extend or modernize systems for established companies.
We agree meeting times and working-hour overlap with each client at the start of the project, and schedule calls and demos in your time zone.
No. We are registered in Texas but work remotely with businesses anywhere in the United States, as well as in the UK and other countries.
Yes. We provide maintenance, security updates, monitoring and new features after your software goes live.