Build, modernize, and integrate secure web applications with our .NET software development services. As a Microsoft-centric application development and integration company, i3solutions delivers scalable, custom business solutions across the Microsoft stack – enabling mid to large organizations to move faster, operate smarter, and achieve long-term impact.
Looking for a partner you can trust to deliver Microsoft-based applications that scale?
The .NET platform is a powerful foundation for building modern, scalable applications – whether you’re operating within the Microsoft ecosystem or not. While it offers deep integration with tools like Azure, Power Platform, SharePoint, and Dynamics 365, .NET is also fully cross-platform and open source, making it a popular choice for organizations building standalone web apps, APIs, microservices, and cloud-native solutions. Its flexibility, performance, and enterprise-grade security make .NET a go-to framework for Digital Transformation across industries.
Cross-Platform and Open Source
.NET enables you to build web, mobile, desktop, and cloud applications across platforms with no licensing fees and strong community support.
Modular and Maintainable
Its architecture supports reusable components and clean separation of concerns, making applications easier to maintain, upgrade, and scale.
Object-Oriented for Cleaner Code
Developers can build more structured and testable applications with object-oriented programming (OOP) principles baked into .NET.
Enterprise-Grade Security
.NET includes built-in security features such as role-based access control, cryptographic APIs, authentication mechanisms, and integration with Microsoft Identity solutions.
Built for Scale and Performance
Whether you’re serving hundreds or millions of users, .NET’s performance-optimized runtime and multithreading support deliver stable, scalable results.
Rich Ecosystem for Enterprise Needs
From Azure integration and Power Platform connectors to Blazor, MAUI, and ML.NET, .NET offers a unified framework for everything from data-driven web apps to AI-powered services.
Choosing the right development framework is critical for long-term success, especially when scalability, security, and integration matter. Here’s how .NET compares to other popular platforms in key areas that affect enterprise-grade application development.
| Feature | .NET | Java/Spring | Node.js/Express |
| Cross-platform | ✅ .NET Core supported | ✅ | ✅ |
| Enterprise-level integrations | ✅ Deep Microsoft stack | ⚠️ Requires plugins | ⚠️ Mostly custom |
| Performance at scale | ✅ High throughput | ✅ | ⚠️ May need tuning |
| Security features | ✅ Built-in RBAC, Identity | ⚠️ Add-on needed | ⚠️ Custom configuration |
| Cloud-native readiness | ✅ Azure-native + Docker | ⚠️ GCP/AWS plugins | ✅ Good container support |
We often recommend .NET for enterprise-grade, Microsoft-aligned environments where long-term maintainability and integration matter most.
Looking to build secure, scalable, and fully integrated business applications on the Microsoft stack? i3solutions is a Microsoft-focused application development and integration firm with almost 30 years of experience helping mid-to-large organizations modernize and streamline operations using the Microsoft platform.
Whether you need to enhance legacy systems, accelerate a new web application project, or integrate platforms like SharePoint, Power Platform, Azure, or Dynamics 365, our .NET software developers (link to new .NET Developer page) and system integration consultants deliver solutions that are built to scale with your business.
Trusted by enterprise teams since 1997, i3solutions delivers more than just custom code. We design solutions that transform how organizations operate across the Microsoft ecosystem. As seasoned Microsoft system integration consultants, we specialize in configuring, customizing, and scaling technologies like Azure, Power Platform, SharePoint, and Dynamics 365 into cohesive, future-ready applications.
Our .NET developers bring deep experience in building secure, enterprise-grade web applications that align with your users, your processes, and your long-term goals. From system modernization to building new solutions from the ground up, we help organizations break down silos, reduce complexity, and unlock lasting value from their Microsoft investments.
From architecture to launch, we build scalable, secure .NET applications tailored to your business. Get full-lifecycle development backed by Microsoft best practices.
Learn MoreOutdated applications can slow down innovation. We modernize legacy systems by rebuilding them on scalable, maintainable architectures that align with today’s business needs.
Migrate your existing applications to .NET Core to unlock better performance, enhanced security, and cross-platform flexibility. We handle the transition end to end.
Learn MoreNeed to move fast? We rapidly design and develop .NET-based MVPs that let you test, iterate, and validate ideas without compromising enterprise standards.
Learn MoreOur .NET development teams specialize in extending and integrating Microsoft platforms—automating workflows and unifying your digital workplace.
Leverage the full power of Azure with .NET-native, cloud-optimized apps. We build scalable solutions that integrate seamlessly with Microsoft cloud services.
Learn MoreWe translate complex business processes into intuitive interfaces and clean, maintainable .NET architecture built for enterprise performance.
Your application’s launch isn’t the end—it’s the beginning. We offer ongoing support, feature enhancements, and scale-up services for evolving .NET systems.
As a Microsoft software development company, we go beyond code to deliver secure, future-ready applications that align with your business. Every solution is purpose-built to integrate seamlessly with your Microsoft environment – accelerating transformation while minimizing disruption.
Our U.S.-based .NET development team is ready to partner with your enterprise team.
As a Microsoft-centric development and integration company, i3solutions works across the full .NET ecosystem – delivering modern, secure, and scalable solutions built for enterprise performance. Our stack spans everything from front-end frameworks and cloud infrastructure to advanced DevOps and security tooling.
Languages & Frameworks
Tools used to build application logic, UI, and services.
Data & Persistence
Databases, ORMs, and tools for managing data storage and access.
Cloud & DevOps
Services and tools for hosting, deploying, and managing applications at scale.
Security & Identity
Technologies that protect data, enforce access control, and ensure secure authentication.
We’re a Microsoft system integrator trusted by enterprise teams to deliver custom business software that’s scalable, secure, and deeply integrated with tools like SharePoint, Azure, and Power Platform. We specialize in designing and delivering a wide variety of secure, scalable web applications for Microsoft-based environments:
Centralize team communication, documents, and workflows with secure internal web portals. Built on .NET and integrated with SharePoint or Microsoft 365, these tools support collaboration and operational transparency.
Deliver personalized, secure experiences to your customers with responsive .NET portals. Enable self-service account access, data submission, support tracking, and more - fully integrated with your backend systems.
We develop robust .NET APIs and backends that serve as the foundation for multi-platform applications, integrations, and digital ecosystems - ready for consumption by internal systems, external partners, or mobile apps.
Automate repetitive content creation tasks like proposal building, form population, and templated documents. Our .NET-based solutions integrate with Word, PDFs, and databases to reduce manual work and speed up approvals.
Modernize your internal operations with tailored .NET business applications built around your unique processes - inventory, HR, scheduling, procurement, or any workflow that doesn’t fit off-the-shelf software.
We design scalable .NET applications using microservices architecture deployed to Azure. These cloud-native solutions improve fault tolerance, performance, and long-term maintainability.
Outdated software doesn’t have to hold your team back. We migrate legacy apps to modern .NET Core platforms - improving performance, reducing technical debt, and enabling cloud-readiness.
.NET is used to solve a wide range of operational challenges across departments and business functions. Our clients leverage custom .NET applications to:
These applications are designed to match your organizational structure, compliance needs, and long-term scalability goals.
Our development teams are composed of senior engineers, architects, and solution consultants with deep experience in Microsoft-based web application development. We work with clients who need:
From internal operational systems to external-facing portals, our custom development services are engineered to meet the demands of enterprise environments without unnecessary complexity. As web application development consultants for digital transformation projects, we help enterprises rethink legacy workflows and build future-ready applications.
Our Proprietary Microsoft-Centric .NET Development Process
As Microsoft platform implementation and integration experts, we work across the Microsoft stack to build seamless, cross-platform business solutions. We deliver every project through a collaborative, iterative Agile approach that blends technical expertise with real business insight:
We map your workflows, identify constraints, and define the right architecture for scalability.
Need a Minimum Viable Product fast? Our teams can design, build, and iterate quickly—while staying aligned with long-term objectives.
We build in sprints, provide frequent demos, and keep your teams in the loop throughout every stage.
As a Microsoft system integrator, we ensure your .NET applications are seamlessly integrated with tools like Azure, Power Platform, SharePoint, and Dynamics 365.
We stay engaged post-deployment to fine-tune, scale, and enhance your application over time.
We offer flexible delivery models designed to meet the needs of mid-to-large enterprises. Whether you’re looking for a team to own a project end-to-end or augment your internal staff, we adapt to your environment.
Delivery Options Include:
We work transparently and collaboratively, ensuring clear handoffs, traceable progress, and shared documentation every step of the way. Whether you’re looking to hire Microsoft developers on demand or outsource an entire project to a trusted Microsoft-focused application development firm, we offer scalable options.
Enterprise-grade applications require more than performance; they require security by design. We apply industry-standard best practices throughout the development lifecycle to ensure your applications are robust, compliant, and future-proof.
Our approach includes:
As a US Microsoft development company, we understand compliance, security, and operational expectations for enterprise clients across regulated industries.
.NET’s architecture supports long-term success by minimizing technical debt and maximizing performance. When we build .NET applications, we don’t just focus on launch – we engineer for long-term performance and maintainability.
Flexible Engagement Models for Microsoft .NET Development Projects
We understand that every organization has different needs and we structure our engagements accordingly. Our goal is to deliver lasting value – not just code.
Choose the model that fits your project best:
Our custom software development services offer flexibility without compromising delivery standards, governance, or scalability.
Whether you’re building from scratch or modernizing a legacy app, we’ll help you move faster with the Microsoft tools you already use.
We typically begin with a discovery call and requirements workshop. Many clients see their project kickoff within 1–3 weeks, depending on complexity and team availability.
Yes. i3solutions provides 100% U.S.-based delivery. All meetings, project reviews, and communications happen in your time zone.
Absolutely. We specialize in working within your existing Microsoft ecosystem, including Azure AD, Microsoft 365, and Dynamics.
We offer ongoing support retainers, knowledge transfer documentation, and scalable staffing models so your application can evolve with your business.
Ready to build a better web application with the Microsoft stack?
Hire Microsoft system integration consultants who specialize in scalable, platform-aligned delivery.
Copyright i3solutions. All Rights Reserved.
Email [email protected] - Phone 703.652.8966
Privacy Policy | Sitemap