We're a leading
Craft CMS agency




















Craft CMS is the platform for organisations that need more than a template can give them. Flexible content architecture, rock-solid security, and a CMS your team can actually use. We have been building on it since 2013.
Need a new Craft CMS website?
Your organisation needs a website built from the ground up on a platform that can grow with you. We design and build bespoke Craft CMS sites from discovery through to launch, with content architecture tailored to your team and your content.
Need a Craft site rescuing?
Your current Craft site needs attention, whether that is a rescue job, a refresh, or simply a new development partner you can rely on. We audit what you have, fix what needs fixing, and take on ongoing support and development from there.
Need onging Craft CMS support?
Your site is live and running but you need a team to keep it maintained, updated, and moving forward. We offer support retainers that cover security updates, CMS version management, and development time for new features and improvements.
A trusted team of Craft CMS development experts
We can provide bespoke design and development for your site as well as ongoing support and maintenance
Craft CMS development
We specialise in Craft CMS development, building dynamic, flexible websites that offer a seamless user experience and easy content management, tailored to meet your business needs.
Performance optimisation
Ensure your website runs fast and efficiently. We fine-tune your site’s performance to enhance load times, user engagement, and overall experience, making every visit smooth and enjoyable.
Craft plugin development
Need custom functionality? We develop Craft CMS plugins to extend your site’s capabilities, providing tailored solutions to meet your specific requirements.
Multi-lingual websites
Reach a global audience with ease. We build multi-lingual websites on Craft CMS, ensuring your content is accessible and user-friendly across different languages and regions.
Maintenance & support
We offer ongoing maintenance and support to keep your Craft CMS site secure, up-to-date, and running smoothly, giving you peace of mind and a reliable online presence.

Subism were awesome to work with and were totally invested in our project - a suite of flexible and fast websites for our top London venues and music festivals.
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We know Craft CMS inside out
As a UK Craft CMS agency, we’ve been helping clients develop more successful websites with Craft CMS since it was released in 2013. We provide bespoke design and development as well as ongoing support and maintenance.

Do you need complex integrations?
Most organisations have a number of different systems that need to talk to each other. Craft CMS’s architecture combined with the Subism skill set makes this interoperability achievable.

What is Craft CMS
Craft CMS is a leading content management system, enabling organisations to take control of their website content. It's much more secure than many other CMS’s, totally flexible and adaptable to the need of any content and allows designers and editors to create beautiful user experiences.

A Craft CMS Partner.
Subism are officially verified by the Pixel and Tonic team based on the quality of our code and Craft CMS development. This gives assurance to our clients that we have the expertise and technical capabilities to deliver to the highest standards.
Rock solid security
With a codebase regularly audited by third party experts and a proven track record on security, Craft CMS is the safe choice.

Design flexibility
Craft CMS is so flexible that even the most complex layout can be intuitively edited. Whether you need to add a calendar, events, import social media content, integrate with a CRM or launch a full e-commerce store - it’s all possible with Craft CMS and Subism.

High Performance
Built on the latest industry standard technology and optimised by the Subism team, Craft CMS can deliver content, fast, and at scale.




More reasons to choose Craft CMS
There are even more reasons to choose Craft. From ease of use to its extendability, it really is a world class content management system.
Your team can manage meta titles, descriptions, and social sharing images directly in the CMS dashboard without developer involvement. Craft's clean code structure and flexible URL handling give search engines what they need to index and rank your content properly.
Out of the box Craft CMS is fully featured and ready to roll. All the things you would expect from a CMS are built in from the ground up including localisation, multi-site capability, custom fields, relations tags, and user accounts.
First and foremost, Craft CMS makes content editing a breeze. Reorder page sections, Live Preview as you create, image editing, save versions, share drafts… your content editing workflow has never been easier.
Need that bit of extra functionality? The chances are there is a plugin for that. If not we can build anything you can imagine with the Craft CMS plugin framework.
What is a headless CMS? It means you can run Craft CMS decoupled from the website or app that’s consuming the data. It makes for a super high performance and unhackable front end. It’s the modern way, and yep, Craft CMS has headless as an option straight out of the box.
It's been a decade now since Craft CMS was first launched. There is a huge global community of developers and agencies passionate about building things and helping organisations succeed on the web.
Questions about Craft CMS
How is Craft CMS different from WordPress?
WordPress was built as a blogging platform and has been extended over time to handle more complex requirements. It works for simpler sites, but its reliance on third-party plugins is the single biggest source of website security vulnerabilities in the world, and it can become increasingly difficult to manage as complexity grows. Craft CMS is built from the ground up for custom content architecture. You define the fields, the content types, and the editorial structure — the CMS is built around how your organisation works, not the other way round. It is more secure, more flexible, and better suited to organisations that need a site built around their specific content rather than adapted from a generic template.
How much does a Craft CMS website cost?
Craft CMS projects are typically more involved than template-based builds, because everything is built to your specific content architecture and requirements. Most projects with Subism range from around £20,000 for a straightforward site through to £70,000 or more for complex builds involving multiple content types, custom integrations, and bespoke editorial workflows. The most reliable way to understand the cost for your project is to talk it through with us — we scope projects individually and give you a clear, itemised estimate before any work begins.
Can you take over a Craft CMS site that was built by another agency?
Yes, and we do this regularly. We start with a full audit covering code quality, security, performance, content architecture, and any outstanding issues. From there we agree a support and development plan that works for your organisation. Some sites need immediate attention; others just need a reliable development partner going forward. Either way, we will give you an honest view of what you have before any work begins. We have been building on Craft CMS since 2013 and are officially verified partners, so there is very little we have not seen.
Is Craft CMS a good choice for charities and non-profits?
Yes, particularly for organisations with complex content requirements or sensitive data handling needs. Craft handles multi-author editorial workflows, CRM integrations with platforms like Salesforce, Raiser's Edge, and Donorfy, donation journey connections, member portals, and content-heavy sites serving multiple audience types. Its security credentials are also important for organisations handling supporter or donor data. We have built Craft CMS websites for CALM, The Power of Nutrition, Manchester Women's Aid, and Royal Marsden Cancer Charity, among others.
Can Craft CMS integrate with our CRM or fundraising platform?
Yes. Craft CMS gives developers full control over the back end, which makes complex, reliable integrations more straightforward to build and maintain. We have integrated Craft CMS sites with CRMs including Salesforce, Beacon CRM, Donorfy, and HubSpot, and with various fundraising and donation platforms. We document every integration thoroughly and offer ongoing support to keep them working as the platforms on either side evolve.
Can you migrate our existing website from WordPress to Craft CMS?
Yes. A WordPress to Craft CMS migration involves rebuilding the site's content architecture in Craft and migrating your existing content across. The process starts with understanding your current site — what content exists, how it is structured, and what needs to change — and then designing a Craft content model that improves on what you had rather than simply replicating it. We handle the migration, redirects, and SEO continuity as part of the project. If you are considering moving away from WordPress, get in touch and we can talk through what is involved for your specific site.



