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AWS to Google Cloud Migration · Portsmouth

AWS to Google Cloud Migration in Portsmouth

Moving Portsmouth workloads from AWS to Google Cloud, where the account structure has to be rethought rather than copied. AWS organises isolation through accounts and Google through projects, and permissions attach differently in each — so the security model is redesigned rather than translated, and getting it wrong is how estates end up over-permissioned.

Why this comes up

The problem

AWS roles and policies were reproduced as closely as possible, and the result grants far more than intended.

What you get

What we deliver

  • Project structure designed against how teams and environments are separated
  • Permissions rebuilt from requirements rather than transcribed from AWS policies
  • Service accounts used deliberately, with their keys managed rather than shared
  • Managed service differences assessed for each dependency in the estate
  • Data transfer volumes and costs established before the move begins
  • Networking rebuilt, since the two providers structure connectivity differently

Want this scoped for your business in Portsmouth?

Thirty minutes, no charge, no sales script. You leave with a written summary of what aws to google cloud migration would actually involve — whether or not you use us.

Book a 30-minute call

Working in Portsmouth

South East

Portsmouth is densely built on an island site with a naval dockyard and a commercial ferry port, so logistics businesses here work under physical constraints that inland operators do not face.

Port, ferry and defence logistics systems, plus visitor operations for the waterfront attractions.

Sectors we work with in Portsmouth

  • Marine & Defence
  • Ports & Ferries
  • Higher Education
  • Retail
  • Tourism

What we work with

Technologies and platforms

  • Google Cloud
  • AWS
  • Terraform
  • Kubernetes

Who we work with

Industries we serve

  • Technology companies
  • Media companies
  • Retail
  • Financial services
  • Healthcare

Why us

Why Portsmouth 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

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

AWS to Google Cloud Migration in Portsmouth — common questions

Why can permissions not be copied?
Because the models differ at the root. AWS attaches policies to users and roles within accounts, while Google grants roles on resources within a project hierarchy that inherits — so a literal translation either over-grants or produces a set nobody can reason about.
How should projects be organised?
Around the boundaries you actually need. Projects are the isolation unit, so separating environments and teams into their own with inherited organisation policies is what makes access manageable — deciding this after workloads land is considerably harder.
What about service account keys?
They should be avoided where possible. Long-lived keys are the most common source of credential exposure, and workload identity mechanisms let services authenticate without them — which is worth adopting during the migration rather than retrofitting.
How different are the equivalent services?
Comparable in purpose and different in detail. Storage, queuing and managed databases all have counterparts with their own limits, consistency behaviour and pricing shape, so each dependency needs assessing individually rather than assumed to be a drop-in replacement.
Do you work with businesses across Hampshire?
Yes. We are based in Leicester, United Kingdom and work with clients throughout South East, including Portsmouth and the surrounding Hampshire area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of Portsmouth businesses do you usually work with?
Port, ferry and defence logistics systems, plus visitor operations for the waterfront attractions. Beyond that we work across Marine & Defence, Ports & Ferries, Higher Education, Retail and Tourism.
Do you cover the areas around Portsmouth?
Yes — we work throughout South East, including Southampton, Chichester, Brighton. Portsmouth is an urban area of roughly 240,000+, and we take on work across the wider Hampshire region rather than the city boundary alone.

Talk to us about AWS to Google Cloud Migration in Portsmouth

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

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom