.NET Software Development Services in the USA

We provide .NET software development services in the USA, building custom applications, modernizing legacy systems, and delivering secure, cloud-native solutions with C# and ASP.NET Core.

13+Years in C# and .NET Development
100+.NET Engineers In-House
800+Software Projects Delivered
600+Clients in 25+ Countries

Build a Scalable .NET Application That Drives Results: Start Your Project Today!

A consultant reads every brief and replies within 24 hours.

0 / 500

Schedule a call with our tech expert (Optional)

30 Min Meeting
Meeting Platform
What is …?

Trusted by Businesses Worldwide

TopDevelopers — Top Software Developers G2 Best Software 2025 — Top 50 IT Management Products Clutch Top Software Developers India 2025 GoodFirms — Top IT Companies and Software SoftwareWorld — Top Rated App Development Companies DesignRush Best Design Awards 2025 The Manifest — Most Reviewed Software Developers Companies SoftwareWorld — Top Rated Software Development Companies

.NET Services for US Businesses

.NET Services We Deliver Across the USA

Explore our .NET development services for businesses across the USA, from custom application development and legacy modernization to cloud solutions and Azure AI integration.

Custom .NET Application Development

End-to-end .NET software built around your specific US business workflows — not a template. C#, ASP.NET Core, .NET 10, and Entity Framework Core architected for your operational reality, with state-level US compliance requirements mapped from the first sprint.

Explore .NET Development

ASP.NET Core Development

High-performance web applications, REST APIs, Blazor platforms, and real-time systems for US enterprise, SaaS, and healthcare companies. Built for US-scale traffic with the security posture American enterprise buyers expect.

Explore .NET Application Development

Enterprise .NET Development

Large-scale .NET platforms for US enterprises in financial services, healthcare, logistics, and manufacturing. Microservices, event-driven architecture, CQRS, and compliance-by-design for HIPAA, PCI-DSS, and SOC 2 from day one.

Explore Enterprise Software

.NET Migration and Modernization

We migrate .NET Framework 4.x, legacy ASP.NET, WCF services, and Xamarin apps to .NET 10 for US businesses running aging infrastructure. Incremental migration preserving business logic, with modern cloud architecture introduced alongside.

Explore Legacy Modernization

Azure Cloud Development with .NET

Cloud-native .NET on Azure for US businesses: App Service, Functions, AKS, Azure SQL, Cosmos DB, Service Bus, and Azure AI. Auto-scaling, high availability, and cost-optimised infrastructure designed from the architecture layer up.

Explore Cloud Development

AI-Integrated .NET Systems

Microsoft's Semantic Kernel and Azure OpenAI make .NET the most direct path to production AI for US enterprise applications. We build intelligent automation, LLM-powered features, and ML.NET analytics into .NET systems that actually ship.

Explore IT Consulting

.NET API and System Integration

We build the .NET integration layer connecting your US business systems to ERP platforms, CRM tools, payment gateways, EHR systems, and third-party APIs. Integration planned at architecture stage, versioned and documented from day one.

Explore Backend Services

Hire Dedicated .NET Developers in the USA

Senior .NET developers placed as a permanent extension of your US engineering team — daily communication, full codebase ownership, direct access. No recruitment overhead. Rates from $45/hr. Faster than US local hiring, no permanent headcount risk.

Hire .NET Developers

Custom .NET Application Development

End-to-end .NET software built around your specific US business workflows — not a template. C#, ASP.NET Core, .NET 10, and Entity Framework Core architected for your operational reality, with state-level US compliance requirements mapped from the first sprint.

Explore .NET Development

ASP.NET Core Development

High-performance web applications, REST APIs, Blazor platforms, and real-time systems for US enterprise, SaaS, and healthcare companies. Built for US-scale traffic with the security posture American enterprise buyers expect.

Explore .NET Application Development

Enterprise .NET Development

Large-scale .NET platforms for US enterprises in financial services, healthcare, logistics, and manufacturing. Microservices, event-driven architecture, CQRS, and compliance-by-design for HIPAA, PCI-DSS, and SOC 2 from day one.

Explore Enterprise Software

.NET Migration and Modernization

We migrate .NET Framework 4.x, legacy ASP.NET, WCF services, and Xamarin apps to .NET 10 for US businesses running aging infrastructure. Incremental migration preserving business logic, with modern cloud architecture introduced alongside.

Explore Legacy Modernization

Azure Cloud Development with .NET

Cloud-native .NET on Azure for US businesses: App Service, Functions, AKS, Azure SQL, Cosmos DB, Service Bus, and Azure AI. Auto-scaling, high availability, and cost-optimised infrastructure designed from the architecture layer up.

Explore Cloud Development

AI-Integrated .NET Systems

Microsoft's Semantic Kernel and Azure OpenAI make .NET the most direct path to production AI for US enterprise applications. We build intelligent automation, LLM-powered features, and ML.NET analytics into .NET systems that actually ship.

Explore IT Consulting

.NET API and System Integration

We build the .NET integration layer connecting your US business systems to ERP platforms, CRM tools, payment gateways, EHR systems, and third-party APIs. Integration planned at architecture stage, versioned and documented from day one.

Explore Backend Services

Hire Dedicated .NET Developers in the USA

Senior .NET developers placed as a permanent extension of your US engineering team — daily communication, full codebase ownership, direct access. No recruitment overhead. Rates from $45/hr. Faster than US local hiring, no permanent headcount risk.

Hire .NET Developers
Software development consultant
Not sure which .NET service fits your US project?

Our Senior .NET architect responds within 24 hours. No commitment required.

Book Your Free Consultation

.NET Case Studies

Real .NET Projects Delivered for US Clients

Three delivered .NET projects. All US-client work. All production systems. All with measurable results and stack attribution.

View All US .NET Case Studies

Healthcare · USA · ASP.NET Core

HealthShield — HIPAA-Ready Credential Management

Challenge

Healthcare professionals across multiple US practices managed credentialing manually across emails and PDFs. Tracking license expirations was unscalable.

Solution

HIPAA-ready multi-tenant subscription platform on ASP.NET Core — centralized document management, automated resume generation, expiry tracking, and Mailchimp integration.

Results
60%Admin time cut
8,000+Records migrated
99.95%Uptime
ZeroHIPAA incidents
Read Full Case Study

SaaS · USA · ASP.NET Core

Vision Care Direct — Multi-Tenant SaaS Insurance Platform

Challenge

A US vision insurance provider needed a multi-tenant SaaS platform for enrollment, billing, and provider management. Manual onboarding took 3 days and payment errors were routine.

Solution

Multi-tenant .NET SaaS on ASP.NET Core reducing onboarding from 3 days to 30 minutes, with integrated billing, provider management, and a consumer mobile app.

Results
3d→30minOnboarding time
<1%Payment errors
Multi-tenantSaaS architecture
99.9%Uptime
Read Full Case Study

Enterprise AI · USA · ASP.NET + ML.NET

Veridian Urban Systems — AI Urban Intelligence Platform

Challenge

A US civic technology organization needed to consolidate governance, economic, and social data from disparate sources into a single AI-driven intelligence platform.

Solution

AI-driven .NET intelligence platform on ASP.NET Core with real-time data ingestion from 12+ sources, anomaly detection, and automated reporting for public sector security.

Results
42%Faster detection
48hr→realtimeReporting lag
12+Sources unified
100%Security requirements met
Read Full Case Study

Insurance · USA · .NET Framework · ASP.NET · SQL Server

Applica Solutions — Customer Loyalty Management Platform

Challenge

Businesses across home services, pet care, and retail needed a centralized platform to manage customer loyalty campaigns, marketing communications, and engagement analytics across multiple channels.

Solution

We developed a .NET-powered CMS platform with automated email scheduling, customizable templates, newsletter controls, analytics dashboards, notifications, and branded web and mobile experiences.

Results
3Industry segments supported
3Platforms (Web, iOS, Android)
CentralizedLoyalty & campaigns
IntegratedEmail, analytics & alerts
Read Full Case Study

Development Process

Our .NET Development Process for US Businesses

Our seven-step .NET development process helps US businesses define clear requirements, establish project scope, maintain transparent communication, and deliver reliable applications from discovery to deployment.

01

Discovery and US Compliance Mapping · 1–2 weeks

We map your workflows, existing systems, integration dependencies, and the specific US state compliance laws that apply to your project before any architecture decision. NY SHIELD, CCPA, BIPA, TDPSA, MHMDA, HIPAA, or PCI-DSS mapped here.

02

Architecture and Full Scope Agreement · 1 week

Our .NET architects define system structure, technology stack, data model, integration points, security approach, and US compliance architecture. You receive full scope, timeline, and total cost before development begins.

03

UI/UX Design · 2–3 weeks

Every screen designed and approved before development starts. Prototypes reviewed by your team. US users have high UX expectations — we design to that standard.

04

Agile .NET Development · Varies by scope

Two-week sprints. Working, reviewable .NET software at each sprint end in a deployed staging environment. Timezone-aligned communication with US-based client management throughout.

05

.NET QA Throughout the Build · Parallel with development

xUnit/NUnit unit tests, integration tests, API tests, load tests, and security scans run parallel to development. US compliance testing — HIPAA, PCI-DSS, or state privacy laws — integrated from sprint one, not staged at the end.

06

Azure or AWS Deployment with Full DevOps · 1 week

Production deployment with CI/CD pipeline, environment promotion, monitoring setup, and runbook documentation. Your US team owns operations independently after delivery.

07

Post-Launch Support and Compliance Updates · Ongoing

Bug resolution, security patching, .NET version upgrades, US compliance updates (MHMDA, TDPSA are both recent and still evolving), and continued feature development on defined support terms.

Compliance & Security

US Compliance Built Into .NET Architecture

US .NET compliance is not a single checklist. The laws governing your application depend on which states your users live in, which industries you operate in, and how your data flows. We map the right requirements to your .NET architecture at the discovery stage.

HIPAA

PHI at healthcare providers, payers, and business associates

Encrypted storage, role-based access, full audit logging, BAA-compliant data flows, secure EHR integrations

PCI-DSS

Card payment data at any business processing transactions

Tokenized payment flows, encrypted transmission, PCI-scoped network segmentation

SOC 2

Security, availability, confidentiality for SaaS and enterprise vendors

Access controls, audit logging, availability monitoring, incident response architecture

NY SHIELD Act

Private information of New York residents at any organization handling that data

Reasonable technical security, breach notification architecture, NY resident data inventory

CCPA / CPRA

Personal data of California residents at qualifying businesses

Consent management, opt-out workflows, data subject requests, right-to-delete, CPPA-audit-ready logging

CMIA

Health information broader than HIPAA at more CA organizations

Dual HIPAA + CMIA compliance architecture — separate from HIPAA requirements

BIPA

Biometric identifiers: fingerprints, facial geometry, voiceprints

Consent flows before collection, retention schedules, secure storage and destruction protocols

TDPSA

Consumer personal data at most TX-operating businesses (no revenue threshold)

Consent management, universal opt-out recognition, deletion workflows, purpose limitation

MHMDA

Health data broader than HIPAA: wearables, wellness apps, location near health facilities

Stand-alone health data privacy policy, separate consent, no-exceptions deletion, geofencing restrictions

FERPA

Student education records at federally funded institutions

Role-based access, student consent workflows, data disclosure logging, FERPA-compliant API design

ITAR / CMMC

Technical data in defense and aerospace supply chains

US-only data access, export control review, CMMC-level architecture mapping

Why Digisoft Solution

Why US Businesses Choose Digisoft Solution for .NET Development Services

We help US businesses build custom .NET applications, modernize legacy systems, integrate cloud technologies, and meet specific business goals.

US Compliance Mapped By State — Not a Generic Checklist

Most .NET outsourcing companies apply a single compliance template to every US project. We map the specific laws that apply to your state, industry, and data flows: NY SHIELD for New York, CCPA/CPRA for California, BIPA for Illinois, TDPSA for Texas, MHMDA for Washington. Architecture-first, not bolt-on.

Senior .NET Engineers With US Market Experience

Our .NET developers have delivered production systems for US healthcare providers, US fintech companies, US logistics operators, and US SaaS businesses. They understand the business context behind the compliance requirements, not just the technical specification.

US-Based Client Management, India-Based Engineering

You communicate with a US-based client management team. Engineering runs from our India team at senior depth and efficient cost. The model that gives you timezone alignment, business-context understanding, and production engineering quality simultaneously.

Senior Engineering Depth, Efficiently Delivered

We hold our .NET engineers to the same bar as the companies they build for — sharp architecture instincts, real ownership of outcomes. Our distributed delivery model funds engineering hours, not office overhead. Senior-level work, efficiently delivered.

Transparent Pricing — US Market Context

US .NET agencies charge $150–$250/hr. Eastern European firms charge $50–$90/hr. Digisoft: from $45/hr for dedicated teams, from $15,000 for fixed-price projects. You see the numbers before signing anything — not after a proposal process designed to find your ceiling.

Full-Cycle .NET Delivery — Architecture Through Support

Custom software, ASP.NET Core, mobile, AI integration, QA, DevOps, Azure deployment, and post-launch support in one engagement. We deliver all of it as one coordinated team, not separate vendors billing you for the gaps between them.

Industries

Custom .NET Development for 25+ Industries in the USA

We build custom .NET applications for US businesses across 25+ industries, addressing specific workflows, integration needs, security requirements, and business goals.

Healthcare & Life Sciences

HIPAAHL7 FHIRTelehealth

We build HIPAA-ready patient portals, EHR integrations, telemedicine platforms, and clinical workflow systems on ASP.NET Core, engineered for the security, uptime, and audit demands of healthcare providers.

Engagement Models

Three Ways US Businesses Engage Our .NET Team

Choose the .NET engagement model that fits your project scope, budget, and timeline, with flexible options for dedicated teams, staff augmentation, and project-based development.

Fixed-Price .NET Project

Best for: Defined-scope projects with a clear deliverable and hard deadline.

Full scope, architecture, timeline, and cost agreed before development starts. No hourly billing. No scope-creep invoices. Ideal for US businesses with board-approved budgets and specific delivery dates.

Get a Fixed-Price Quote

.NET Staff Augmentation

Best for: US engineering teams with specific C# or .NET skill gaps.

Senior .NET developers placed inside your existing US team within 3–7 days. No recruitment overhead, no permanent headcount risk. Used by US teams that need a specific .NET skill fast — migration, Azure, AI integration.

Explore .NET Augmentation

Not sure which .NET engagement model fits?

We will recommend the right engagement structure for your budget, timeline, and team in a free 20-minute call.

.NET Technology Stack

The .NET Stack We Build With for US Clients

Every technology below is actively used in delivered US .NET projects — ASP.NET Core, .NET 10, Azure, and compliance-ready architecture.

.NET Core & Languages

ASP.NET Core.NET 8 / .NET 10C#BlazorSignalRgRPCEntity Framework Core

Azure & Cloud

Azure App ServiceAzure FunctionsAKSAzure SQLCosmos DBService BusAzure OpenAI

Testing & DevOps

xUnit / NUnitIntegration TestingAzure DevOpsGitHub ActionsDockerKubernetesCI/CD

AI & Data

Semantic KernelML.NETAzure AIRedisElasticsearchPostgreSQLSQL Server
.NET Development Across the USA

.NET Development Services Across the USA

Dedicated coverage in 9 US markets, with state-specific .NET compliance mapping for each.

New York, NY

HIPAA + PCI-DSS + NY SHIELD Act + SOC 2

Wall Street fintech, healthcare systems, and enterprise software — NY SHIELD Act compliance built into every .NET system we deliver for New York clients.

Explore More →

Los Angeles, CA

HIPAA + CCPA + CPRA + PCI-DSS

Entertainment, healthtech, and SaaS — CCPA/CPRA data architecture from day one for California resident personal data.

Explore More →

Chicago, IL

HIPAA + PCI-DSS + BIPA + SOC 2

Fintech, logistics, and manufacturing — BIPA-compliant .NET platforms for biometric authentication and high transaction volumes.

Explore More →

Houston, TX

HIPAA + PCI-DSS + TDPSA + SOC 2

Energy, healthcare, and aerospace — TDPSA applies to .NET platforms handling Texas consumer data statewide.

Explore More →

California (Statewide)

CCPA + CPRA + HIPAA + CMIA

SaaS, biotech, and semiconductor — CCPA, CPRA, and CMIA mapped simultaneously into .NET architectures.

Explore More →

Texas (Statewide)

TDPSA + HIPAA + PCI-DSS + SOC 2

Enterprise, energy, and Austin tech — TDPSA has no revenue threshold for Texas consumer data on .NET applications.

Explore More →

Florida (Statewide)

HIPAA + PCI-DSS + SOC 2

Healthcare, fintech, and Miami SaaS — HIPAA-ready .NET architecture and PCI-DSS-compliant payment systems.

Arizona — Gilbert, AZ (US Office)

HIPAA + PCI-DSS + SOC 2

Our US office in Gilbert, AZ — semiconductor, healthtech, and enterprise integration with on-site availability.

Explore More →

Washington / Seattle

HIPAA + MHMDA + PCI-DSS + SOC 2

Cloud, enterprise, and healthcare — MHMDA compliance for wearables, wellness apps, and health-adjacent data.

Serving businesses in all 50 US states including Atlanta, Boston, Denver, Philadelphia, Minneapolis, Nashville, and Raleigh. Contact us for state-specific .NET compliance requirements →

Testimonials

What US Clients Say

Verified reviews from real clients. Published independently on Clutch and GoodFirms. Every name and company is verifiable.

★★★★★

"Digisoft Solution delivered exactly what we needed — on time and within budget. Their .NET team was genuinely invested in making it work, not just closing the project."
Sam Shahab CEO — Verified Clutch Review

★★★★★

"We were immediately impressed by the depth of their technical knowledge. The rebuilt .NET platform has exceeded every benchmark we set and continues to perform above expectations."
Adam Senior Head of Design, Whold Design Studios — Verified Review

★★★★★

"Digisoft Solution understood the actual business problem and delivered a .NET solution that moved our sales numbers in the first quarter after launch."
Rod Westwood Director, UtilityClick — Verified Review

Frequently Asked Questions

USA-specific .NET answers for Google Featured Snippets, People Also Ask, and AI Overview citations.

.NET development services in the USA include designing, building, testing, deploying, and maintaining custom software using Microsoft .NET technologies. US businesses use these services to develop web applications, enterprise platforms, APIs, cloud solutions, and systems tailored to their operational needs.

Yes. We develop custom .NET applications for US businesses, including business portals, enterprise systems, customer-facing platforms, and workflow automation tools. Solutions can be tailored to specific business requirements, existing technology environments, integration needs, and security objectives.

We build .NET applications that support enterprise web applications, SaaS platforms, REST APIs, internal business tools, e-commerce backends, cloud-native applications, and integration services. The appropriate architecture depends on performance requirements, expected traffic, data sensitivity, deployment environment, and the application's long-term maintenance needs.

.NET offers cross-platform development, strong C# tooling, mature security capabilities, cloud integration, and support for enterprise application architectures. It is suitable for businesses that need maintainable software, API-driven systems, integration with Microsoft technologies, and long-term application support.

.NET development costs in the USA depend on application complexity, feature requirements, integrations, security needs, team size, and delivery timelines. A small application generally costs less than a complex enterprise platform. Request a project assessment to establish the scope, delivery plan, and estimated budget.

To hire dedicated .NET developers, define your technical requirements, required experience, project duration, and preferred engagement model. Evaluate candidates on C#, ASP.NET Core, database design, APIs, testing, and cloud deployment. Digisoft Solution can discuss dedicated development resources based on your project needs and team requirements.

Yes. Our dedicated .NET development resources can support long-term product development, application modernization, ongoing feature releases, and maintenance. Team composition depends on your requirements and may include .NET developers, QA engineers, cloud specialists, and technical leads.

.NET development outsourcing can help US businesses access specialized engineering skills, scale delivery capacity, and reduce the need to recruit an entire in-house team. It works best when responsibilities, communication schedules, security requirements, intellectual property ownership, and acceptance criteria are agreed upon in advance.

Yes. We provide ASP.NET Core development services that support modern web applications, REST APIs, backend services, and cloud-based platforms. Development may include application architecture, authentication, database integration, API development, performance optimization, automated testing, and deployment to the hosting environment that fits the project.

Yes. We modernize legacy .NET applications that involve upgrading supported frameworks, refactoring outdated code, replacing obsolete dependencies, improving security, optimizing performance, and migrating workloads to the cloud. The recommended approach depends on the application's architecture, business-critical functions, technical debt, and acceptable downtime.

Yes, eligible applications can be assessed for migration to .NET 10. The process typically includes dependency analysis, code compatibility checks, architecture review, automated and manual testing, and deployment planning. Some legacy applications require intermediate upgrades or architectural changes before migration.

Yes. We integrate .NET applications with CRM, ERP, HRMS, payment platforms, databases, third-party APIs, and other enterprise systems. Integration methods may include REST APIs, webhooks, message queues, and scheduled data synchronization, depending on system capabilities and security requirements.

.NET application development timelines depend on the application's scope, complexity, integrations, testing requirements, and team size. A focused application may take weeks to a few months, while a complex enterprise platform can require several months or longer. Discovery and technical planning help establish a realistic delivery schedule.

We develop .NET applications with safeguards designed to support HIPAA requirements, including access controls, encryption, audit logging, and secure data handling. HIPAA compliance also depends on organizational policies, risk assessments, vendor agreements, and operational practices, so it cannot be guaranteed by technology alone.

Yes. We build .NET software for financial applications such as payment systems, account management platforms, reporting tools, and workflow automation solutions. Projects can incorporate authentication, authorization, audit trails, encryption, and risk-based security controls according to applicable financial regulations and business requirements.

Yes. Our .NET quality assurance can include unit testing, integration testing, API testing, end-to-end testing, performance testing, and security assessments. The testing strategy should reflect the application's architecture, risk profile, business workflows, and release requirements.

Source code and intellectual property ownership depend on the terms of the development agreement. US businesses should confirm ownership of custom code, documentation, designs, and project deliverables, as well as licensing terms for third-party components, before development begins.

We provide custom .NET development, ASP.NET Core engineering, legacy application modernization, and cloud integration for US businesses. With 13+ years of technology experience, 800+ projects delivered, and 100+ professionals, we focus on tailored solutions, transparent communication, secure development practices, and long-term application support.

Start Your .NET Project in the USA —
Free Consultation

Tell us what you are building. We will tell you what it will cost, how long it will take, and which .NET stack is right for your US compliance environment. A senior .NET architect responds within 24 hours.

What happens next:

  1. 1We review your .NET project brief within 2 business hours
  2. 2A senior .NET architect contacts you within 24 hours
  3. 3We schedule a free 45-minute .NET discovery call
  4. 4You receive a scoped proposal: architecture, US compliance mapping, timeline, and full cost

Get a Technical Roadmap for Your Next Digital Solution

Transform your concept into a scalable digital product with expert technical consultation.

0 / 500

Schedule a call with our tech expert. Get a tech consultation for free! (Optional)

30 Min Meeting
Meeting Platform
What is …?