What is Simon Antony?
Simon Antony is an Umbraco Silver Partner agency based in North Wales, led by Simon Steed — an Umbraco specialist with over 20 years of hands-on .NET development experience. We deliver bespoke Umbraco CMS solutions for businesses and agencies across the UK and internationally.
As one of fewer than 100 Umbraco Silver Partners worldwide, we have direct access to Umbraco HQ technical support and early access to new platform releases. Our work spans custom builds, white-label agency partnerships, legacy site rescues, performance optimisation, and ongoing retainer support.
According to BuiltWith, Umbraco powers over 730,000 live websites globally, including organisations like Microsoft, the NHS, and Carlsberg. We specialise in helping mid-market businesses and agencies take advantage of Umbraco's open-source flexibility without the overhead of enterprise CMS licensing. Based in Llandudno, we work remotely with clients across the UK and beyond.
As an Umbraco Silver Partner, we deliver specialist development support for businesses and agencies looking for clean, scalable, and well-architected Umbraco solutions.
From white label builds and performance audits to new site launches and legacy rescue work, we bring the technical clarity and hands-on support you need – without the agency overhead or jargon.
Whether you need help with a new site build, a legacy rescue, or white label development support, we’ve got the experience to handle it – with none of the agency overhead. We’re based in North Wales and work with clients across the world.
Our expertise covers custom Umbraco builds, performance audits, integrations, templating, architecture guidance, and ongoing support. We focus on long-term results, not quick fixes, and bring technical clarity to every project.
OUR SERVICES
Why choose an Umbraco specialist over a generalist agency?
Umbraco is a developer-first CMS built on ASP.NET Core and C#. Unlike WordPress or Drupal, it has no plugin dependency, every feature is custom-coded, which means you need a developer who understands the platform deeply, not a generalist who treats it like another CMS.
According to G2's 2025 peer review data, Umbraco consistently outscores WordPress, Sitecore, and Drupal for ease of customisation and developer satisfaction. But those advantages only materialise when the implementation is done properly. A poorly architected Umbraco site is harder to fix than a poorly built WordPress site because there are no plugins to fall back on.
That's why working with an Umbraco Certified Master matters. We bring architectural clarity, clean code, and long-term maintainability to every project, whether it's a new build, a migration, or a rescue of an existing site that's gone off the rails.
Explore our servicesUmbraco Development
Custom Umbraco development built on ASP.NET Core and C#. From greenfield sites to complex integrations and API-driven architectures, we've delivered over 50 Umbraco projects across sectors including healthcare, education, recruitment, and professional services. Every build is designed for long-term scalability.
Umbraco Audits & Performance
Comprehensive website audits covering Core Web Vitals, page speed, security headers, and SEO foundations. Our audits typically identify 15-30 actionable improvements per site, with clients averaging a 40% improvement in Lighthouse performance scores within 30 days of implementation.
Umbraco SEO & Marketing
Technical SEO, content strategy, and structured data implementation tailored for Umbraco. We optimise site architecture, schema markup, and content structure — including emerging standards like llms.txt and AI crawler configuration that most agencies aren't yet addressing.
Umbraco Retainer Services
Flexible monthly retainer plans starting from a few hours per month. Priority access to development, security patching, Umbraco version upgrades, and troubleshooting. We currently support clients on Umbraco versions ranging from v8 through to v17 LTS.
Our latest news
What should you know about Umbraco in 2026?
The CMS landscape is shifting. AI-powered search engines now drive over 527% more referral traffic year-on-year according to SparkToro, and Google AI Overviews reach 1.5 billion users monthly. Traditional SEO alone is no longer enough, websites need to be optimised for both human visitors and AI systems.
At the same time, the Umbraco platform continues to mature. Version 17 LTS, released in late 2025, brings .NET 10 support, improved content delivery APIs, and better performance out of the box. For organisations still running Umbraco 8 or earlier, end-of-life support deadlines are past, you need to be looking at upgrading.
Our articles cover practical guidance on Umbraco upgrades, CMS migration decisions, AI readiness, and web performance, written from direct project experience, not theory.
Why it's time to move to Umbraco
Paying licensing fees you resent or managing plugins you can't control? See why thousands of organisations are switching to Umbraco — and what the G2 data actually says.
Is AI becoming a liability or a way forward?
AI is advancing rapidly, but are we ignoring the risks? Explore the hidden dangers of AI agents, browser extensions and data security threats.
AI for business: practical ways to make your team more efficient
AI for business doesn't have to be complicated. Discover practical ways to make your team more efficient without hiring more people or changing how you work.
TESTIMONIALS
What do clients say about working with Simon Antony?
We've worked with organisations ranging from the British Red Cross and the Scottish NHS to specialist recruitment firms and marine science bodies. Our client relationships typically span multiple years. Most of our retainer clients have been with us for over three years, which we believe says more about our work than any sales pitch.
Client feedback consistently highlights three things: we communicate clearly without jargon, we deliver on time, and we're honest about what a project actually needs rather than upselling unnecessary work. As a small, senior-led team, every project gets direct access to the architect who built it, there's no junior handoff after the sales call.
We're happy to provide references and case studies on request. You can also see examples of our work in our portfolio.
I worked for a company that provided database services for Yes Telecom, where Simon was Head of IT and Development, and we liaised a great deal during that time. While working with Simon, without exception I found him to be technically astute, insightful and a pleasure to do business with. Simon drove Yes Telecom's IT department through a period where intelligent strategic direction and change/progression was essential to the business, and I always found his leadership skills to be strong and his decision-making to be excellent. His technical skills appeared unusually strong for senior IT management.
Dave Henderson
Pro DBA Ltd
Simon is highly organised and detailed in his approach. The project we initially worked on together had to be completed to tight deadlines and involved various business critical areas. Simon managed all actions in a highly efficient manner, ensured that project milestones were met and that his team were available when needed preventing any delays due to resource.. I feel I have enjoyed an excellent working relationship with Simon and we have completed a number of successful projects together as a result of his approach and professional attitude. I would recommend Simon to anybody looking to work in a structured, consultative and open manner.
Paul Livesley
Azzuri Communications Ltd
Simon was very focused and dedicated in ensuring the infrastructure\support team was effective in delivering efficient and secure IT services to the business. He was very astute and had effective methods of getting the best out of his teams, other members of the business and suppliers. I gained plenty of useful skills from working with him, both technical and non-technical and it has definitely been beneficial having his mentoring, experience and knowledge in my career
John Pickford
Infrastructure Manager - Yes Telecom Ltd
Delivers an outstanding service, great work ethic and will always go that extra mile to get the job done!
Holly Wade
Softcat LTd
From conception right through to delivery of our new site, it’s been an absolute pleasure working with the team at Simon Antony. Simon provided a solution fit for us and helped us navigate how we could get the best possible result quickly, cost efficiently, and to the best standard. I look forward to continuing to work with Simon and the team post project as we move back onto a support contract with them. Having the support of Simon Antony’s team is now a key asset to Principle Networks, bringing additional knowledge and expertise to our team.
Sarah Wilson
Simon always came up with a solution to support the sales team. Nothing was ever too much trouble and he was realistic on delivery times
Matt Sandford
Sales Director - Yes Telecom Ltd
