Cloud Consulting Company

D55

Manchester software and data consultancy and AWS Advanced Consulting Partner modernising legacy systems

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TrustList summary

Manchester-based D55 builds and runs cloud software and data platforms on AWS. It covers the whole life of an application, from early strategy and building through to monitoring performance afterwards. The team works beside client staff so they can run their systems themselves later.

What D55 does

Application development: cloud-native software, including rebuilding older .NET and SQL systems.
Data services: modern data platforms that bring together cloud, data and AI.
Managed services: ongoing running and tuning of client applications.
AWS audits and optimisation: reviews that find ways to get more from an existing AWS setup.
AWS funding support: help for clients applying for AWS programme funding.

Clients

D55 takes on anything from one focused use case to large cloud, data or software programmes for established businesses.

Key facts

Based in: Manchester, United Kingdom
Partnership: AWS Advanced Consulting Partner
Specialism: modernising legacy .NET and SQL systems

Summary written by TrustList from the business's own published information, Sep 2026.

Categories & features

D55 rankings

D55 is ranked on 3 TrustList rankings: #12 on 1, #25 on 1 and #32 on 1.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. D55 has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

Cloud consulting company · 3 rankings

#12of 50
Aws
It is the only one of the 50 here listing utilities and one of 6 here listing API.
Its profile: “Manchester-based D55 builds and runs cloud software and data platforms on AWS.”
Of the 50 here, 52 also cover cloud and 29 also cover DevOps; 2 also work in Houston.
Behind stackArmor.
#25of 133
Consulting
It is one of 11 here listing AWS and one of 17 here listing information technology.
Its profile: “- Based in: Manchester, United Kingdom - Partnership: AWS Advanced Consulting Partner - Specialism: modernising legacy .NET and SQL systems Manchester-based D55 builds and runs cloud software and data platforms on AWS.”
Of the top 87 here, 35 also cover security and 25 also cover financial services; 3 also work in New York and 3 also work in York.
Behind Cubestech, ahead of Darby Consulting.
#32of 103
United kingdom
It is one of 2 here listing API and one of 3 here listing AWS.
Its profile: “- Based in: Manchester, United Kingdom - Partnership: AWS Advanced Consulting Partner - Specialism: modernising legacy .NET and SQL systems Manchester-based D55 builds and runs cloud software and data platforms on AWS.”
Of the top 68 here, 25 also cover web development and 20 also cover web design; 5 also work in London and 2 also work in Scotland.
Behind LDeX Group Ltd.