AI velocity.
We're a UK software agency specialising in bespoke software development, AI development and DevOps for organisations across the UK and internationally. AI accelerates everything we do, with every change reviewed by senior engineers.
Elysium Ltd is a UK software company, trading since 1991, with a small, senior team working remotely.
Bespoke software, Ruby on Rails development, AI products, DevOps and AWS, and secure hosting and infrastructure.
We're certified to ISO 27001, ISO 9001, ISO 14001 and Cyber Essentials, and trusted by organisations in regulated industries. Senior engineers review every change we make, including AI-assisted work.
Talk directly to the engineers who would do the work, not a sales team. Or start small with a Discovery Sprint.
Get in touchCore Services
Three focused areas where Elysium delivers the most value - each built around a specific problem we solve for organisations like yours.
See your idea working before you build it
Turn your idea into a clickable prototype in a week, without a big upfront commitment. From £795.
There is a way forward
Your system has proven itself. With 35+ years of experience and AI-accelerated process, we protect that value while freeing you to move forwards.
Control where your data lives
We manage secure infrastructure for organisations with strict data sovereignty requirements.
Why Elysium
We've shipped software through every major platform shift since 1991 - the open web, Rails, cloud, containers, AI. Staying current isn't new to us.
Our developers have decades of hands-on experience across software, cloud infrastructure, and the web. That depth of knowledge is what makes AI a multiplier rather than a liability.
Building net-new AI products - large language model (LLM) applications, multi-agent systems, retrieval-augmented generation (RAG) pipelines - is a core service.
We also use AI throughout our own development lifecycle, with every decision reviewed by engineers who understand the implications.
Headquartered in East Sussex, we work directly with you. No offshoring, no account managers between you and the developers. ISO 27001:2022, ISO 9001, ISO 14001, and Cyber Essentials certified. Direct, responsive, and accountable.
What we build
From the first line of code to production infrastructure - and everything in between.
Build net-new AI products or embed AI into your existing systems - with engineers who understand how LLMs, RAG pipelines, and multi-agent architectures actually work in production.
Learn moreBespoke applications built to your specification. Ruby on Rails is our primary platform - we've built multi-tenant SaaS, enterprise systems, and AI-integrated applications with it for years.
Learn moreCloud infrastructure designed to scale. Continuous integration and continuous delivery (CI/CD) pipelines, containerisation, and Amazon Web Services (AWS) architecture from practitioners with real production experience.
Learn moreInvestor demos, MVPs, and proof-of-concept builds. Validate your idea with working software before committing to a full build.
Learn moreUK-based hosting, security monitoring, domain management, and email. Secure, reliable infrastructure management so you never have to worry about uptime or your attack surface.
Learn moreExplore all services
See the full picture of what Elysium can build for you.
View all servicesThe case for experience
AI tools have changed how software gets built. But they haven't changed what good engineering requires: deep knowledge of architecture, security, performance, and the realities of production systems.
Whether you're commissioning an AI product - an LLM-powered application, a multi-agent system, a RAG pipeline - or engaging engineers who use AI to deliver your software faster, the requirement is the same: people who understand the technology deeply enough to make the right calls.
At Elysium, our engineers bring decades of domain knowledge to every AI-assisted task. We know how to guide AI to the right answer - and when to override it. We know what to verify. We know where the shortcuts lead.
We don't just talk about AI - we run a 5-agent AI system in our own operations.
Client Feedback
We let the work speak. Here is what a few of our clients have to say.
CLINICAL TRIALS & DIGITAL HEALTH
A trusted partner in highly regulated environments
“They have been a trusted partner for over 16 years, playing a key role in designing and delivering reliable, high-quality clinical trial and digital healthcare solutions, supported by strong AWS expertise. Their highly customer-focused approach and willingness to go the extra mile consistently set them apart”
TALENT ACQUISITION (OUTSOURCING)
A true partner from start to finish
“Seeing the site finally launch, I'm reflecting on what a great partnership this was with Elysium. They were extremely helpful through the entire process and incredibly patient with the many client comments and post-approval revisions. I can't thank them enough”
PUBLIC SECTOR RECRUITMENT
Delivered at scale, without disruption
“A big thank you to the team for the successful launch of our new job board platform. To complete such a large project with no real showstoppers should be applauded; we are rightly proud of the new board and very pleased with the results.”
Latest thinking
Company News
We've achieved ISO 14001 certification, the internationally recognised standard for environmental management. Here's what the standard involves, what we're doing to be more sustainable, and why it matters to us.
DevOps
Wire up an AI reviewer carelessly and it becomes a credential-steal and remote code execution (RCE) path that still looks like healthy CI. Here's how to add code and security review without that - fork PRs, secret leakage, prompt injection, and the noise discipline that keeps maintainers reading it.
Infrastructure & Security
Airbus is moving 70 critical applications off AWS and onto French provider Scaleway to shield sensitive data from the US CLOUD Act. It's a good template for any organisation weighing the same move.
Questions
Both. We build applications that use AI - LLM applications, multi-agent systems, RAG pipelines - and we use AI throughout our own development, with every decision reviewed by engineers who understand the implications.
ISO 27001:2022, ISO 9001:2015, ISO 14001:2015 and Cyber Essentials.
Yes. We're UK-based and work with organisations across the UK and internationally.
Get Started
Get in touch with our Team. No sales process, no pitch decks — just a direct conversation about what you need.
