Our Manifesto

We believe technology is a catalyst for change, and change drives growth. Like sherpas guiding ambitious climbs, we help organisations embrace innovation with confidence, knowledge, and fearless exploration.

Mission

To be a trusted partner helping clients grow through secure, innovative AWS solutions.

Vision

Empowering organisations to unlock the full value of AWS cloud computing.

Who We Are

From Energy Roots to Cloud Innovation Leaders

D55’s journey began in 2016, when our co-founders worked together on complex B2B billing challenges in the energy industry. With the right blend of technical expertise, a growth mindset, and a collaborative approach, they built a reputation for delivering results.
In 2018, D55 was officially founded, achieving AWS Partner status by 2019 and growing into a team of Cloud Architects, DevOps Engineers, Analysts, and Testers. While we built deep expertise in B2B energy, tackling everything from intricate industrial pricing engines to large-scale systems integration, we soon discovered these challenges were common across many industries.
In 2024, AWS recognised this expertise by awarding us the Energy Competency. Our name, “D55,” originates from the UK energy data bundle exchanged during supplier switches, a nod to our heritage and to helping organisations switch to something smarter, better, and future-ready.

Partner with Certified AWS Experts

At D55, our AWS Advanced Partner status showcases our proven track record in delivering cloud transformations across industries. Backed by a highly certified team and AWS-validated expertise, we consistently drive measurable results. Partner with us to unlock the full value of AWS, optimising costs, strengthening security, and accelerating innovation.

Meet Our Directors

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Jonathan Rothwell
An experienced MD and IT Director, Jonathan specialises in delivering large-scale digital transformation projects and lean MVP product development. He focuses on using technology to create new revenue streams and enhance business processes.
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Rhys Jacob
With a background in distributed systems and experience building mobile and web applications, Rhys brings a wealth of expertise to D55. His career highlights include working on major websites and leading startups from concept to fully featured enterprise applications

Why Partner With D55?

Your AWS Partner for Security, Agility, and Results

Technology Expertise
AWS-certified engineers & advanced DevOps practices.
Transparency
Clear, collaborative, and issue-first communication.
Agility
High-performing teams delivering fast, valuable outcomes.
Industry Knowledge
From energy to SaaS to financial services, we adapt AWS to your business.

Our Services

Cloud Consultancy Service
Expert Guidance for Every Step of Your AWS Journey.
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Cloud Migration Services
Your AWS migration, simplified.
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Application Modernisation
Modernise your infrastructure with scalable cloud-native solutions.
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AI
Empower your business with AI-driven innovation.
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Data Modernisation
Harness the power of Data to transform operations.
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Cloud Native Development
Accelerate innovation with scalable cloud-native apps.
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System Integration
Unify Systems to enhance efficiency and value.
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Managed Services
Boost Efficiency with Scalable Managed Services.
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AWS Billing
Clarity and Control Over Your AWS Costs.
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What our Clients Say

“While we led the initial business scoping and discussions with key stakeholders, it was a very smooth process working the D55 team to expand on this vision. The D55 team took ownership of building the solution and worked closely with us throughout the process. The quality of the work, combined with the excellent support during the handover, is exactly what we value in a partner.”

Andrew Thomas
CTO
Amber

" D55 enabled us to migrate from on-premise to a cloud-based solution, resulting in monthly cost savings of about 40%. Cloud-based systems give us a high level of resiliency and an unlimited capacity to scale. We’ve really put in place the foundations for later phases of work and further cost reduction as we scale. It was a partnership as opposed to a service - we work well together. "

Roger Worsley
CTO
kooomo

"Excellent technical knowledge, productive and responsive. Will go the extra mile to ensure customer satisfaction."

Chris Trigg
Co-Founder, Managing Director
ongen

"D55 are a highly experienced team that helped lead our business to push for and deliver an innovative and ambitious legacy to AWS transformation, with confidence. D55 have become a valued development and consultancy partner thanks to their excellent practical capability and their ability to apply the most appropriate working methodology to the challenge at hand."

Ed Berry
Head of Digital Products
switch2

"D55 have helped to develop our CRM system and have been a valued partner in this process. We continue to work with D55 on our application development and would have no hesitation to recommend them."

Andrew Bright
Director
itp-energised

"D55 have proved to be an excellent development partner offering expertise and predictable delivery, with flexibility to respond to changing business needs. They have helped us explore new AWS technologies, challenged our thinking and sped up our adoption of relevant platform services."

Arran Stevenson
Director of Architecture
ensek

“D55 has been transformative for our business. They understood the business and our challenges and built a system that supports how we work now, as well as leveraging new technologies which are more cost-effective and increase our speed to deliver. Thanks to D55 we don’t have to worry about the day-to-day, so we can focus on the exceptional issues facing our industry."

D55 Client
CTO
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Let’s Build What’s Next, Together!