Cloud Migration Services | AWS, Azure, GCP

Definition

What is cloud migration?

Cloud migration is the process of moving applications, data and infrastructure from on-premise servers, or from one cloud to another, into a cloud environment such as AWS, Azure or Google Cloud - without losing data or disrupting the business. Done well, you gain flexibility and lower running costs. Done badly, you get outages and a bill nobody predicted.

Our approach covers the full arc: assessing what you have, choosing the right route for each application, moving it in stages, and supporting it afterwards - delivered by the same in-house team that builds cloud applications every day.

Assess · Plan · Migrate · Cut over · Support

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What We Do

Cloud migration services, from first assessment to life after go-live

A migration has a natural order, and this is ours. Use the whole sequence, or bring us in at the stage where you are stuck.

Readiness Assessment & Migration Planning

An inventory of your applications, data, dependencies and licences, followed by a written plan: what moves, in what order, by which route, and what could go wrong along the way.

Best forAnyone about to commit budget to a migration

Lift-and-Shift Migration

Moving applications to cloud servers as they are, with minimal change. It is the quickest route off aging hardware, and a sensible first step when a data-centre exit has a deadline.

Best forFast exits from on-premise hosting

Replatforming & Containerization

Small, targeted changes that let an application use managed cloud services: containers on Docker and Kubernetes, managed databases, and automated deployment pipelines (see our DevOps services).

Best forApplications worth improving as they move

Application Refactoring & Legacy Modernization

When a legacy system is holding the business back, we redesign it for the cloud rather than carrying the problems across. We start by deciding honestly whether to move it, modernize it, or replace it.

Best forLegacy systems that are costly to change

Database & Data Migration

Moving your data without loss or corruption: schema and dependency checks, trial migrations, validation of the result against the source, and a controlled final sync at cutover. Ongoing database management is available afterwards.

Best forData-heavy systems where accuracy is critical

Security, Testing & Cutover

Access controls and network rules set up before data moves, functional and load testing in the new environment, and a scheduled cutover with a rollback plan ready.

Best forBusiness-critical and customer-facing systems

Post-Migration Support & Optimization

The migration is not finished at go-live. We stabilise the new environment, monitor it, and support the application afterwards - and review your cloud costs once workloads are running, since the first bill after a move is rarely the lowest it can be.

Best forTeams who want someone accountable after go-live

Migration Strategies

Six ways to move an application, and how we choose

Not every application should be treated the same. For each one we pick the route that fits its value, its condition and your timeline.

Rehost

Move it as it is. Fastest and lowest risk, with the least cloud benefit.

Replatform

Move it with small changes so it can use managed services such as databases.

Refactor

Redesign it for the cloud. The most effort, and the most long-term payoff.

Repurchase

Replace it with a ready-made cloud product when that beats maintaining custom software.

Retire

Switch off what nobody uses. The cheapest migration is the one you do not do.

Retain

Leave it where it is for now, when moving it would cost more than it returns.

By Platform

AWS, Azure and Google Cloud migration

Each provider ships its own migration tooling. We assess which of it suits your workloads, rather than defaulting to one platform.

AWS migration

Native tools we would evaluate:

AWS Application Migration Service for rehosting servers
AWS Database Migration Service for databases
Amazon ECS and EKS for containerized workloads
A Well-Architected review of the target design

Azure migration

Native tools we would evaluate:

Azure Migrate for discovery and assessment
Azure Database Migration Service for data
Azure Kubernetes Service for containerized workloads
Azure Hybrid Benefit to reuse existing licences

Google Cloud migration

Native tools we would evaluate:

Migration Center for discovery and assessment
Migrate to Virtual Machines for rehosting
Database Migration Service for data
Google Kubernetes Engine for containerized workloads

Quick Move vs Redesign

When to lift and shift, and when to re-architect

The two ends of the spectrum suit different situations. Most real migrations use both.

Lift and shift fits when

A data-centre exit or hardware renewal sets a hard deadline
The application is stable and does not need new features
You plan to modernize later, once you are already in the cloud

Re-architecting fits when

The application is central to the business and will keep changing
It struggles with scaling, reliability or release speed today
A straight copy would just move its problems to a new address

Process

How a cloud migration engagement runs

Nothing moves until the step before it has been tested.

01
Assess & Plan

Inventory what you have, choose a route for each application, and agree the order and timeline.
02
Prepare & Pilot

Build the target environment and migrate one lower-risk application first, to prove the approach.
03
Migrate & Cut Over

Move in stages, test in the new environment, and switch over in an agreed window with rollback ready.
04
Stabilise & Support

Monitor, tune and support the new environment, and review costs once real load arrives.

Technology

The platforms and tools we migrate with

We have no preferred cloud to sell you, so the advice on where to go is about your workloads.

Target Clouds

AWS

Microsoft Azure

Google Cloud

Containers & Orchestration

Docker

Kubernetes

CI/CD & Automation

GitHub Actions

Jenkins

CircleCI

Migration Practice

Data migration Security & access Load testing Rollback planning

Why teams trust Tvisha with their cloud migration

Moving a working system is a delivery problem, not just an infrastructure one.

We build cloud applications too

Migration decisions are better when made by people who develop and run cloud software themselves.

Staged, reversible moves

Testing before cutover and a rollback plan mean a problem is an inconvenience, not an outage.

Two decades of shipping software

Twenty-plus years and 500+ delivered projects mean we have met most of the ways a migration can go sideways.

One team, start to finish

The engineers who assess your systems are the ones who migrate them. 100+ developers across two offices, all in-house.

A cloud migration company you can verify

Who you would be working with, in four numbers.

20+Years building software

500+Projects delivered

100+In-house developers

2Global offices

Questions we get asked

Answers to what people usually ask before they commit to a move.

What is cloud migration?

Cloud migration is the process of moving applications, data and infrastructure from on-premise servers, or from one cloud to another, into a cloud environment such as AWS, Azure or Google Cloud, without losing data or disrupting the business.

Which migration approach is right for us: rehost, replatform or refactor?

It depends on the application. Rehosting is fastest and lowest-risk but gains the least from the cloud. Replatforming makes small changes to use managed services. Refactoring redesigns the application for the cloud and takes longest. We assess each application and often use a mix.

Will there be downtime during migration?

We plan to keep it minimal. Applications are migrated in stages, tested in the new environment before cutover, and switched over in an agreed window with a rollback plan ready, so a problem does not become an outage.

Can you migrate legacy applications?

Yes. We start with an assessment to decide whether a legacy system should be moved as it is, modernized, or replaced, then migrate it on that basis.

Which cloud should we migrate to?

We work with AWS, Microsoft Azure and Google Cloud and advise on the best fit for your workloads, existing licences and budget rather than pushing one provider.

What happens after the migration is complete?

We stabilise the new environment, monitor performance, and support the application afterwards. We can also review cloud costs once workloads are running, since the first bill after a migration is often higher than it needs to be.

How long does a cloud migration take?

It depends on how many applications are moving, how much data there is, and how much of each application changes. A single well-understood application can move in weeks; a portfolio of legacy systems takes months. The assessment gives you a realistic timeline before any work starts.

How much does cloud migration cost?

Cost depends on the same factors as timeline, plus the route chosen for each application. We do not quote a figure before an assessment, because a number given without seeing your systems would be a guess. After the assessment you get a written plan with the effort for each stage.

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