.NET Development Company in UK
Techstack is a dot net development company UK businesses trust for custom web, cloud, and enterprise solutions with experienced .NET developers and scalable architectures.
Our .NET Development Process
Discovery and Requirements Analysis
We review your requirements and technical constraints.
Architecture Planning
Our solution architects define the target architecture.
UI/UX and Prototyping
For new builds, we create user flows and prototypes.
.NET Development
Engineers build in sprints with regular code review.
QA and Testing
Every release goes through functional, performance, and security testing.
Deployment
Controlled releases with rollback plans.
Ongoing Support
Post-launch maintenance as your application evolves.
.NET Development Services We Offer in the UK
Techstack is a .NET development company UK businesses rely on for full-cycle .NET development services, covering new application builds, legacy modernization, and long-term staff augmentation. See our complete .NET development services across all engagement types.
Custom .NET Application Development
We build custom .NET applications tailored to your business logic, using ASP.NET Core, C#, and Entity Framework.
ASP.NET Web Development
Our ASP.NET web development covers MVC and Razor-based applications and RESTful APIs.
.NET Enterprise Software Development
We design enterprise-grade .NET software for complex workflows.
.NET Migration and Modernization
We move legacy .NET Framework applications to .NET Core and .NET 6+ in controlled phases. See our .NET Application Migration Services and Legacy System Modernization Services.
.NET API Development and Integration
We build and integrate RESTful APIs on .NET.
Cloud-Based .NET Development
Our .NET applications are built for AWS, Azure, or GCP.
Dedicated .NET Developers
We provide dedicated .NET developers who join your team.
.NET Support and Maintenance
Ongoing .NET support: bug fixes, performance tuning, and monitoring.
Why Choose Techstack as .NET Development Company in the UK
Our developers hold Microsoft .NET certifications alongside AWS and Google Cloud credentials. Techstack has spent 12+ years building and scaling .NET systems, ranked in the top 1% of US engineering functions, with 60% of clients staying with us for 5+ years and a 5.0 Clutch rating. We're ISO 27001 and ISO 27701 certified and GDPR-compliant.
Industries We Serve in the UK
Fintech
Secure, compliant .NET systems for financial operations.
Healthcare
.NET applications for patient engagement.
E-commerce
Scalable .NET platforms for online retail.
Logistics
.NET systems for tracking and routing operations.
Energy and Utilities
.NET applications for energy monitoring.
SaaS
Multitenant .NET platforms for subscription businesses.
Manufacturing
.NET systems for production tracking.
.NET Solutions We Build
Web Applications
Responsive, scalable web applications built on ASP.NET Core.
Enterprise Platforms
Enterprise .NET platforms for multiple departments.
SaaS Products
Multitenant SaaS platforms on .NET.
CRM and ERP Systems
Custom CRM and ERP systems on .NET.
Fintech and Banking Software
Secure .NET applications for financial operations.
Healthcare Software
.NET systems for patient data.
E-commerce Solutions
Scalable .NET e-commerce platforms.
Legacy System Modernization
We modernize legacy .NET systems in phases. Learn more about our legacy system modernization services.
Our .NET Technology Stack
C#, F#, ASP.NET, ASP.NET Core, MVC, Entity Framework, WCF, SignalR, and WPF, deployed on AWS, Azure, or GCP.
Engagement Models
Dedicated .NET Team
A dedicated .NET team assembled for your project.
Staff Augmentation
.NET engineers who join your existing team.
Project-Based Development
A defined .NET project delivered end to end.
Long-Term Product Development
Ongoing .NET development as your product grows.
Our .NET Projects
A fintech partner needed to modernize a legacy finance application without disrupting live operations. We rebuilt the system on .NET 6, moving from a monolith to a component-oriented architecture, cutting development and release time by 30%.
Benefits of Hiring .NET Developers in the UK
A dedicated .NET team gets you faster time to market and lower long-term maintenance costs. Our Time & Materials model means you pay for actual work completed.
Ready to start your .NET project in the UK?
Book a free discovery call and we'll map out the right approach for your system.
FAQ
Why hire a .NET development company in the UK?
A .NET development company brings established engineering practices and experience across ASP.NET Core, legacy modernization, and cloud deployment.
How much does .NET development cost in the UK?
Cost depends on project scope, team size, and engagement model. We work on a Time & Materials basis.
How long does it take to build a .NET application?
Timelines vary with scope: a focused MVP can take a few months, while an enterprise .NET platform can take longer.
Can you migrate legacy software to modern .NET?
Yes. We assess your existing legacy system, then migrate it to .NET Core or .NET 6+ in phases.
Book a Discovery Call
What comes next?
01
Submit the form
02
Get a response within 12 hours and schedule a call with a Techstack expert
03
Sign an NDA (if necessary)
04
Discuss processes, product goals, and software requirements
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Get expert insights and answers to your questions
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Receive a tailored action plan and customized offer