We build, modernize and support .NET applications in C# and ASP.NET Core, from greenfield platforms to .NET Framework estates that cannot afford downtime. Senior engineers only, working inside your sprints, so the hard part is the migration plan rather than onboarding.
.NET development services cover the design, build, modernization and support of applications on Microsoft’s .NET platform, using C# with ASP.NET Core, Blazor, EF Core and Azure. Most enterprise work falls into three buckets: new applications, moving .NET Framework code to current .NET, and adding capability to systems already in production.
✓ You already run on Microsoft infrastructure. Active Directory, SQL Server and Azure are already in place, and your operations team knows them. Building in .NET keeps identity, deployment and monitoring inside one support boundary instead of adding a second one.
✓ You have a .NET Framework estate that still makes money. Rewrites of working systems fail more often than they succeed. Current .NET gives you a route that moves the application one slice at a time, with the old and new stacks running side by side.
✓ Throughput and hosting cost drive the architecture. .NET handles high request volumes on modest hardware, and ahead-of-time compilation cuts container start time and memory. That difference shows up on your cloud bill, not in a benchmark.
✓ The application has to survive an audit. Regulated workloads need a predictable support window, patched runtimes and traceable dependencies. A November release cadence and three years of support on long term releases make that planning boring, which is the point.
> Model training and data science sit at the center of the work. ML.NET is fine for scoring a model inside an application. If the job is notebooks, feature engineering and experiment tracking, the ecosystem lives in Python, so we would put Python engineers on it and call into .NET from there.
> You need very small, fast-starting services at high concurrency. For network-heavy infrastructure components where a single binary and a tiny memory footprint matter more than framework depth, Go engineers are the better answer, and we will say so before you sign anything.
> Mobile is the product, not a channel. .NET MAUI works for an internal app that mirrors a web tool. If the mobile experience is what customers actually pay for, Flutter engineers get you further per sprint.
Greenfield line-of-business systems and customer platforms, built in C# on ASP.NET Core with a domain model you can still read in year three. Our custom .NET development services include the architecture decisions, not just the sprints that follow them.
We move .NET Framework applications onto .NET 10 in slices, with a reverse proxy routing traffic between old and new while both run. Our application modernization services start with a dependency map, because System.Web and WCF decide the sequence.
Containerized ASP.NET Core services on Azure Container Apps or AKS, with health probes, structured logging and autoscaling configured before launch rather than after the first incident. We run the same pattern on AWS and Google Cloud through our enterprise cloud solutions practice.
Minimal APIs, gRPC and message-driven integration across ERP, CRM and payment systems. Our custom ASP.NET development services cover the contract, the retry behavior and the observability, because integration failures are rarely about the endpoint itself.
xUnit and Playwright suites that run on every pull request, pipelines in Azure DevOps or GitHub Actions, and OpenTelemetry wired into the application rather than bolted on afterward. Canary releases with rollback, so a bad deploy stays boring.
Retrieval, summarization and agent workflows added to systems already in production, using Microsoft.Extensions.AI and Semantic Kernel against Azure OpenAI. Evaluation harness first, because an AI feature nobody can measure does not belong in a regulated workflow.
100+
Institutional tenants supported with scholarship operations across every release.
We ran a .NET 8 and Angular 18 stack side by side with the legacy AngularJS layer, expanded role-based access control, and shipped the Funds module without breaking scholarship workflows.
100%
Uninterrupted API migration completed without production incidents, preserving business continuity across all active workflows.
We refactored data-heavy grids and forms, then moved the frontend onto realigned backend API contracts in stages, so business-critical workflows kept running throughout.
45%
Reduction in loan processing time, with 50% faster onboarding, after moving to a cloud-native lending platform.
We built a loan origination and approval engine with automated rule checks, integrated third-party verification data, and migrated the workflows onto a secure cloud platform with full audit trails.
Get a 20-minute technical read from a senior engineer. No pitch deck, no sales team.
Build anything new on .NET 10. .NET Framework 4.8 is Windows-only and now receives security and reliability fixes rather than new capability, .NET Core was the cross-platform rewrite that ended at version 3.1, and everything from .NET 5 onward is one unified platform with a single runtime. .NET 10 is the current long term support release and is supported until November 2028, while .NET 8 support ends in November 2026. Vendors list the same work as dot net development services, .NET software development services or asp.net development services, so ask which runtime version a proposal actually targets.
Yes, and in most enterprise estates an incremental migration is the only workable path. We put a reverse proxy in front of the running application and move routes onto .NET 10 one slice at a time, using the System.Web adapters so both stacks can share session and authentication during the transition. The .NET Upgrade Assistant handles project files and package retargeting; the real work is untangling System.Web dependencies, WCF services and anything bound to Windows-only APIs. We have kept a modern .NET stack live beside its legacy layer for the full length of a migration on a multi-tenant SaaS platform.
There is no single rate, because the same feature costs very different amounts depending on how many systems it has to talk to. Most .NET development companies will not publish a number, and a figure on a landing page would be fiction anyway. Comparing vendors on hourly rate alone is the most common estimating mistake we see, since the cheapest quote usually carries the largest contingency and that surfaces later as change requests. Ask any partner to scope and price the first slice of work rather than the whole program.
Yes. Microsoft ships a major .NET release every November and alternates long term support and standard term support versions, so you can plan against a three year support window instead of guessing. .NET runs on Linux and in containers rather than only on Windows Server, and the same runtime covers web APIs, background services, desktop and mobile. The practical risk is not the platform, it is staying on a version past its support date, which is exactly how .NET Framework estates became expensive to own.
Yes. .NET runs on Linux, in Docker and on Kubernetes, and deploys to AWS and Google Cloud as readily as to Azure. Entity Framework Core has supported providers for PostgreSQL, MySQL, Oracle and SQLite for years, so SQL Server is a choice rather than a requirement. Talking to Java, Python or Node services uses the same integration surface as anywhere else: REST, gRPC, GraphQL, or a broker such as Kafka or RabbitMQ. The honest constraint is older .NET Framework code, which stays tied to Windows until it moves to current .NET.
Tell us the shape of the problem. A senior engineer reads it and replies. You won't get a templated capability deck.