We build, modernise and optimise ASP.NET Core / .NET 9 web applications for enterprise clients standardised on Microsoft and Azure. Senior-only delivery.
01 / A better starting point
Is Your ASP.NET Development Costing You Customers Every Day?
Most businesses lose customers every day to underperforming ASP.NET development. If any of these sound familiar, you are losing revenue right now:
02 / Built around your ambition
Our ASP.NET web development services for enterprise — 8 Safe Solutions
- 01
ASP.NET Core 9 application development
We build web applications and APIs on ASP.NET Core 9 with dependency injection, clean project structure and automated tests, running on Windows or Linux as suits you.
- 02
Minimal APIs and Razor Pages
We use Minimal APIs for lean, fast endpoints and Razor Pages for server-rendered interfaces, avoiding unnecessary complexity where a simpler pattern does the job well.
- 03
Entity Framework Core data layer
We design Entity Framework Core models, migrations and queries with profiling, so data access stays efficient and schema changes are versioned alongside your code.
- 04
Azure App Service / AKS deployment
We deploy to Azure App Service for straightforward hosting or AKS for containerised workloads, with scaling rules, deployment slots and infrastructure defined in code.
- 05
Active Directory and Entra ID integration
We integrate Active Directory and Microsoft Entra ID for single sign-on, role-based access and conditional access policies that match your organisation's security requirements.
- 06
Application Insights observability
We instrument applications with Application Insights for request tracing, dependency tracking, exceptions and alerts, so your team can diagnose issues from real production data.
- 07
ASP.NET Framework to .NET Core modernisation
We move ASP.NET Framework applications to modern .NET in phases, one bounded context at a time, keeping the existing system live while each part is rebuilt.
- 08
Azure DevOps CI/CD pipelines
We build Azure DevOps pipelines that compile, test, scan and deploy automatically, with approvals between environments and repeatable releases your team can trust.
The Payoff
What Our ASP.NET Development Delivers for Your Organisation
A supported .NET platform
Moving from ASP.NET Framework to modern .NET keeps you on long-term support and cross-platform hosting.
Automated Azure releases
Pipelines replace manual deployments, so releases are repeatable and far less stressful.
Efficient data access
Entity Framework Core queries are profiled and tuned to remove N+1 problems and slow tracking.
Architecture that fits the problem
We favour minimal APIs and clear layers over heavy N-tier designs that add ceremony without value.
Visibility into production
Application Insights and structured logging show you exactly how the system behaves under real load.
Secure sign-in with your directory
Entra ID integration gives staff single sign-on and central control over access.
How we work / From idea to impact
How We Deliver ASP.NET Projects
- 01
System review
We examine your .NET version, dependencies, database and Azure setup to understand the starting point.
- 02
Modernisation roadmap
A phased plan covers framework upgrades, containerisation and any architectural simplification.
- 03
Build and refactor
We develop in ASP.NET Core with dependency injection and unit tests, so each part can be tested in isolation.
- 04
Pipelines and containers
Azure DevOps or GitHub Actions pipelines build Docker images and deploy to App Service or AKS.
- 05
Monitor and hand over
Application Insights dashboards and alerts are set up, and your team gets documentation for running the system.
Why Devintek
Why Choose Devintek for ASP.NET Development
Practical experience upgrading .NET Framework apps
Minimal APIs and Razor Pages where they keep things simple
Entity Framework Core tuning based on real query profiling
Azure App Service, AKS and container deployments
Entra ID and Active Directory integration
Testable code with dependency injection from the start
Your vision. Our craft.
Strategy, design and development working as one connected team.
Industries
Industries Using Our ASP.NET Development
- Financial services
- Healthcare systems
- Government contractors
- Manufacturing ERP
- Education administration
- Legal practice management
- Corporate intranets
Investment
ASP.NET Development Packages for Enterprise Systems
New ASP.NET Core Application
Custom quote
- Typical delivery in 16 to 36 weeks
- ASP.NET Core 9 with EF Core data layer
- Entra ID or Active Directory sign-in
Framework to .NET Modernisation
Most PopularCustom quote
- Phased over 4 to 12 months
- One bounded context at a time
- Legacy system kept live during migration
- Automated tests added as code moves
Azure DevOps and Observability
Custom quote
- Azure DevOps or GitHub Actions CI/CD
- App Service or AKS deployment
- Application Insights monitoring and alerts
FAQ
Frequently Asked Questions
Still have questions?
Our team replies within one business day with a straight answer, not a sales pitch.
Contact usASP.NET Web Development Services for Enterprise
ASP.NET web development services for enterprise sit at the centre of modern Microsoft-standardised technology stacks in 2026. ASP.NET Core / .NET 9 consistently leads independent throughput benchmarks, ships with first-class Azure integration, supports long-term LTS commitments, and runs natively on Linux, Windows and macOS. For organisations standardised on Microsoft 365, Azure Active Directory and Azure cloud services, ASP.NET removes friction across identity, hosting, observability and DevOps that other stacks add. Devintek ships ASP.NET in three primary engagement types. First: greenfield enterprise application development on .NET 9 with Razor Pages, minimal APIs and Entity Framework Core, deployed to Azure App Service or AKS. Second: ASP.NET Framework modernisation projects where clients move 10-year-old monolithic applications to ASP.NET Core in phased migrations, typically over 6–12 months per bounded context. Third: performance, security and observability optimisation engagements on existing ASP.NET applications. Every project uses Azure DevOps or GitHub Actions for CI/CD, Application Insights for observability, and Azure Key Vault for secret management. Our engineers are familiar with the full Microsoft ecosystem — Entra ID, Azure Service Bus, Cosmos DB, SQL Azure, AKS, and Azure DevOps — and we collaborate cleanly with internal IT teams that already own Azure tenancy.
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Part of Web Development
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