.NET Migration · Southampton
.NET Migration in Southampton
Migrating Southampton applications from .NET Framework to modern .NET, where the first task is finding what has no successor. Several Framework technologies were not carried forward — server-side WCF, Web Forms, remoting — so an application built on one of those is facing a redesign of that layer rather than a port of it.
Why this comes up
The problem
The migration was estimated as a port, and a third of the application is built on a technology that no longer exists.
What you get
What we deliver
- Technologies without a direct successor identified before anything is estimated
- Replacement approach chosen for each, since the alternatives differ substantially
- Incremental migration behind a proxy where the application is too large to move at once
- Dependencies assessed for modern .NET support, including transitive ones
- Configuration and hosting reworked, as the models differ meaningfully
- Behaviour captured as tests before the layers producing it are replaced
Want this scoped for your business in Southampton?
Thirty minutes, no charge, no sales script. You leave with a written summary of what .net migration would actually involve — whether or not you use us.
Working in Southampton
South East
Southampton is a major port and cruise terminal, so scheduling, capacity and booking systems that cope with sharp seasonal peaks are a recurring theme in the work we do here.
Scheduling and capacity systems that survive seasonal peaks are the recurring need, driven by the port, cruise and tourism economy.
Sectors we work with in Southampton
- Maritime & Shipping
- Cruise & Tourism
- Higher Education
- Healthcare
- Logistics
What we work with
Technologies and platforms
- .NET
- C#
- ASP.NET Core
- YARP
Who we work with
Industries we serve
- Financial services
- Manufacturing
- Public sector
- Healthcare
- Enterprise software
Why us
Why Southampton businesses choose Asionis
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise
How we work
- Step 1
Free consultation
A 30-minute call to understand the problem. You keep the written summary either way.
- Step 2
Proposal
Scope, timeline and a fixed price, in writing, before anything starts.
- Step 3
Build
Short cycles with regular check-ins, so you see progress rather than hear about it.
- Step 4
Launch and support
We handle the go-live and stay available afterwards.
Other services in Southampton
Looking for the full picture? See our .NET Migration services, everything we do in Southampton or browse everything we do.
.NET Migration in Southampton — common questions
- What genuinely does not port?
- Server-side WCF, Web Forms and remoting are the main ones. Clients and alternatives exist for some, and the honest position is that these represent a redesign of that layer — which is why finding them early matters more than any other assessment step.
- Can a large application move incrementally?
- Yes, by routing traffic through a proxy that sends migrated paths to the new application and everything else to the old one. Each release moves a section, both run together, and the migration proceeds without a single high-risk cutover.
- How do we handle dependencies?
- Audit them including transitively, because one unsupported package deep in the graph can block everything above it. Most widely used libraries have moved; the ones that have not are usually internal or long abandoned, and both need a decision.
- Is it worth doing at all?
- For an application under active development, generally yes — performance, hosting options and access to current tooling. For a stable system nobody is changing, the Framework remains supported and the migration may be effort spent for benefits nobody will use.
- Do you work with businesses across Hampshire?
- Yes. We are based in Leicester, United Kingdom and work with clients throughout South East, including Southampton and the surrounding Hampshire area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
- What kind of Southampton businesses do you usually work with?
- Scheduling and capacity systems that survive seasonal peaks are the recurring need, driven by the port, cruise and tourism economy. Beyond that we work across Maritime & Shipping, Cruise & Tourism, Higher Education, Healthcare and Logistics.
- Do you cover the areas around Southampton?
- Yes — we work throughout South East, including Portsmouth, Reading, Bristol. Southampton is an urban area of roughly 330,000+, and we take on work across the wider Hampshire region rather than the city boundary alone.
Talk to us about .NET Migration in Southampton
A 30-minute call with someone who would actually work on it. No sales script, no obligation.
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise