Umbraco has carved out a place as a flexible and developer-friendly CMS, and in the UK it’s become a popular choice for businesses that want something more adaptable than off-the-shelf platforms. Agencies working with Umbraco usually mix technical build with design thinking, so the final product isn’t just functional but also fits into the way a company runs day to day.

Working with these teams often feels less like ordering a pre-made website and more like shaping a tool that grows with your business. In the following sections, we’ll walk through some UK-based agencies that specialise in Umbraco, looking at what they do, how they work, and the kinds of services they provide.

1. OSKI Solutions

When OSKI Solutions work on Umbraco projects, our focus is on building solutions that actually fit into the way clients run their business. That means we don’t just drop in a CMS and walk away. We take the time to design, code, and test around real workflows so the site feels like a tool, not an add-on. With Umbraco, that can range from content-heavy websites to portals that connect with other systems through APIs.

Alongside the technical side, OSKI Solutions also put effort into usability. Our team pays attention to the front end as much as the back end, making sure the websites we deliver are straightforward for both the people managing content and the end users. Since we’re already working across cloud platforms, AI integrations, and frontend frameworks like React or Angular, we tend to bring that experience into our Umbraco builds as well.

Key Highlights:

• Hands-on experience with Umbraco development for web portals and business websites
• Strong focus on UI/UX design alongside backend integration
• Use of modern frontend tools such as React, Vue, and Angular
• Cloud expertise across AWS, Azure, and Google Cloud
• Track record of delivering projects with structured project management

Services:

• Umbraco website design and development
• API and system integration
• Cloud-based deployment and scaling
• Custom UI/UX design
• Ongoing maintenance and bug fixing

Contact Information:

• Website: oski.site
• LinkedIn: www.linkedin.com/company/oski-solutions
• Address: Kaupmehe tn 7, 10114 Tallinn, Estonia
• Phone Number: +48571282759
• Email: contact@oski.site

2. CSI Media

CSI Media focus on designing and developing websites with Umbraco as one of their main platforms. They combine technical build with structured project management, making sure sites are delivered in a way that aligns with business needs and security requirements. Their work covers both content-heavy websites and e-commerce, with experience in handling integrations and tailoring systems for different industries.

They are an Umbraco Platinum Partner and hold ISO certifications, which points to their emphasis on process and compliance. Alongside development, they also manage support and ongoing improvements, so projects don’t just stop at launch. Their clients range from local organisations to larger enterprises, and the team has built a reputation for combining creative front-end work with strong backend frameworks.

Key Highlights:

• Umbraco Platinum Partner
• ISO 9001 and ISO 27001 certified
• Experience with content management and e-commerce projects
• Recognised in Clutch rankings for Umbraco and web design
• Structured support system through a dedicated service desk

Services:

• Umbraco website design and development
• E-commerce solutions
• Content management system implementation
• System integrations and custom builds
• Ongoing support and maintenance

Contact Information:

• Website: www.csimedia.net
• LinkedIn: www.linkedin.com/company/csi-media
• Address: 4 Mallard Court Mallard Way Crewe Cheshire UK
• Phone Number: 0344 873 0073
• Facebook: www.facebook.com/csimediauk
• Twitter: x.com/csimedia
• Email: enquiries@csimedia.net

3. Crumpled Dog

Crumpled Dog are a creative agency based in Shoreditch, London, with a long history that goes back to 1965. They are an Umbraco Gold Partner and focus on combining design, strategy, and development into one service. Their projects often bring together creative direction with technical delivery, whether it’s designing websites for schools, charities, or commercial clients.

They also work on areas beyond design and build, such as Umbraco upgrades, migrations, and system health checks. With experience in Azure infrastructure and DevOps, they provide the technical foundation that keeps sites running smoothly after launch. Their portfolio shows a mix of organisations, from educational institutions to lifestyle brands, which highlights their ability to adapt to different sectors.

Key Highlights:

• Umbraco Gold Partner with decades of experience
• Based in Shoreditch, London, with a strong creative focus
• Work spans education, charity, and commercial sectors
• Expertise in upgrades, migration, and system support
• Involvement in the wider Umbraco community, including sponsorships

Services:

• Umbraco website design and development
• Upgrades and migration projects
• Consultancy and technical support
• Health checks and performance reviews
• DevOps and Azure infrastructure management

Contact Information:

• Website: www.crumpled-dog.com
• LinkedIn: www.linkedin.com/company/crumpled-dog
• Address: Runway East Shoreditch 52 Tabernacle Street London 
• Phone Number: 020 7739 5553
• Facebook: www.facebook.com/CrumpledDogLondon
• Twitter: x.com/crumpled_dog
• Instagram: www.instagram.com/crumpleddog
• Email: info@crumpled-dog.com

4. SteadyGo

SteadyGo are an Umbraco Gold Partner agency based in Leeds, working on enterprise-level builds and complex integrations. Their focus is on creating high-performance websites, often with multilingual content and API-driven features. They also provide support for clients on different versions of Umbraco, whether hosted on Azure or Umbraco Cloud, and back this up with structured SLAs and direct technical support.

On the infrastructure side, they bring detailed knowledge of Azure services, continuous integration pipelines, and performance tuning. They also cover areas beyond CMS development, such as .NET MAUI app builds, AI-driven tools for content automation, and lightweight front-end frameworks like Tailwind CSS. Alongside new projects, they take on “project rescue” work, stepping in to fix underperforming builds and get them running reliably.

Key Highlights:

• Umbraco Gold Partner since 2012
• Specialised in enterprise-level and multilingual CMS builds
• Strong focus on API integration and infrastructure on Azure
• Experience in .NET MAUI app development and AI-powered tools
• Ability to take over and restructure failing projects

Services:

• Umbraco website design and development
• API integration and system connectivity
• Azure hosting, optimisation, and performance management
• Support packages with SLAs and ticketing systems
• Mobile and cross-platform app development
• Rescue and rebuild of stalled or broken projects

Contact Information:

• Website: www.steadygo.digital
• Address: The Mending Rooms, Sunny Bank Mills, Farsley, Leeds, LS28 5UJ, UK

5. GrowCreate

GrowCreate are a digital agency that position themselves as long-term partners for businesses running on Umbraco and Azure. They focus on combining technical engineering with user-focused design, helping organisations keep their digital platforms secure, scalable, and continuously improved. Their approach often follows three stages-support, enhance, and evolve-so projects are treated as ongoing partnerships rather than one-off builds.

They are an Umbraco Platinum Partner and work with clients in finance, healthcare, and nonprofit sectors, among others. Their services cover system migrations, platform takeovers, and DevOps automation, supported by 24/7 monitoring. Case studies show projects ranging from multilingual content management for private banks to AI-powered localisation workflows for global brands.

Key Highlights:

• Umbraco Platinum Partner with enterprise-level experience
• Strong focus on Azure cloud and DevOps engineering
• Structured model: support, enhance, and evolve
• Track record with finance, healthcare, and nonprofit clients
• Experience in multilingual, compliance-driven CMS builds

Services:

• Umbraco website design and migration
• Cloud hosting and optimisation with Azure
• UX and system integration
• 24/7 monitoring and platform support
• DevOps automation and infrastructure management
• AI adoption and content automation tools

Contact Information:

• Website: growcreate.co.uk
• Phone Number: 01844 202522
• Email: hello@growcreate.co.uk

6. FINN Partners

FINN Partners are a London-based agency with long-standing experience in delivering websites on the Umbraco CMS platform. They began working with Umbraco shortly after its early open-source release and have since used it across a range of industries. Their team focuses on design and development but also provides longer-term support, version upgrades, and maintenance for existing websites. With in-house developers and designers, they adapt Umbraco builds to reflect each client’s brand and functional requirements.

The agency has a portfolio of clients across sectors such as retail, hospitality, finance, and education. Their work includes both large-scale websites with multilingual content and smaller sites built for specific campaigns. Beyond design and development, they advise on system integrations, workflow management, and usability, showing how the CMS can be extended into more complex business applications.

Key Highlights:

• Over a decade of experience with Umbraco development
• Based in London and working with international brands
• Expertise in multilingual websites and enterprise projects
• Strong focus on design, usability, and long-term support
• Wide sector coverage including retail, finance, and education

Services:

• Umbraco website design and development
• CMS upgrades and migration
• Ongoing support and maintenance
• Workflow and content management customisation
• System integrations and e-commerce functionality

Contact Information:

• Website: www.finnpartners.com
• LinkedIn: www.linkedin.com/company/finn-partners
• Phone Number: 020 3217 7060
• Facebook: www.facebook.com/finnpartners
• Twitter: x.com/FINNPartnersUK

7. i-Finity

i-Finity is a York-based Umbraco partner agency with more than a decade of experience in CMS development and system integrations. Their work covers a broad range of website projects, from simple brochure sites to complex builds that involve payment systems, membership management, or large-scale integrations. A strong emphasis is placed on performance, security, and compliance, backed by their Cyber Essentials Plus certification.

They also take an active role in helping organisations stay aligned with Umbraco’s product lifecycle. This includes upgrades when versions reach end of life, as well as ongoing optimisation to keep sites responsive and reliable. Their team combines Umbraco knowledge with Microsoft Silver Partner expertise, allowing them to build solutions on .NET that are scalable and flexible enough to integrate with new and legacy systems.

Key Highlights:

• Cyber Essentials Plus certified for security standards
• Microsoft Silver Partner with strong .NET expertise
• Proven history of version upgrades and end-of-life migrations

Services:

• Umbraco website design and custom development
• API integrations and third-party connectivity
• Specialist builds for e-commerce, auctions, and memberships
• Azure cloud hosting and performance optimisation
• Ongoing maintenance, support, and CMS upgrades

Contact Information:

• Website: www.i-finity.co.uk
• LinkedIn: www.linkedin.com/company/i-finity
• Address: Blake House, 66 Bootham, York, YO30 7BZ
• Phone Number: 01904652100
• Facebook: www.facebook.com/IFinityHQ
• Twitter: x.com/ifinityhq
• Instagram: www.instagram.com/ifinityhq
• Email: hello@i-finity.co.uk

8. Fifteen

Fifteen are a full-service digital agency with offices in Nottingham, London, and Preston. Their team works across web design, development, and digital marketing, often taking projects from the early strategy stage through to launch and ongoing support. User experience and brand alignment sit at the centre of their work, and they combine design thinking with technology to create websites, apps, and e-commerce solutions.

They also provide a wide scope of services outside of web builds. This includes brand strategy, graphic design, and marketing support such as SEO, social campaigns, and PPC management. Their portfolio shows projects for charities, education, and commercial businesses, reflecting their flexibility across different sectors. Alongside new builds, they maintain long-term client relationships with website hosting, support, and incremental improvements.

Key Highlights:

• Offices in Nottingham, London, and Preston
• Experience with websites, apps, and e-commerce projects
• Blend of creative brand work and technical development
• Strong focus on user experience and design-led solutions
• Portfolio includes charities, consumer brands, and B2B clients

Services:

• Website design and custom development
• E-commerce and app development
• UX and digital brand strategy
• SEO, PPC, and social media management
• Graphic and logo design
• Hosting, maintenance, and ongoing support

Contact Information:

• Website: www.fifteendesign.co.uk
• LinkedIn: www.linkedin.com/company/fifteen-design
• Address: 7 Dollywaggon Way,Bamber Bridge,Preston,UK
• Phone Number: 0115 718 5398
• Facebook: www.facebook.com/FifteenDesign
• Twitter: x.com/fifteenagency
• Instagram: www.instagram.com/fifteenagency
• Email: hello@fifteen.co.uk

9. Kayo Digital

Kayo Digital focus on creating high-performing websites that tie business strategy with user insights. Their approach is structured around research, understanding, creation, and ongoing evolution, which means projects are treated as part of a longer growth journey rather than one-off builds. They work on both sales-focused websites and broader commerce platforms, helping organisations refine their digital presence while aligning it with measurable outcomes.

Their portfolio includes case studies ranging from retail and food suppliers to healthcare and public sector organisations. They have built e-commerce platforms, online marketplaces, and rapid-launch websites, sometimes under challenging circumstances where speed and scalability are essential. Alongside design and development, they also advise on sales and commerce strategy to ensure that sites are not only functional but also geared toward revenue growth.

Key Highlights:

• Structured approach: research, understand, create, evolve
• Experience with e-commerce and large-scale web platforms
• Case studies include retail, food supply, healthcare, and public sector
• Focus on combining digital strategy with measurable outcomes
• Track record of delivering websites that drive sales growth

Services:

• Website design and development
• E-commerce platform builds
• Online marketplace solutions
• Digital strategy and sales optimisation
• Long-term website support and evolution

Contact Information:

• Website: kayo.digital
• LinkedIn: www.linkedin.com/company/kayo-digital
• Address: The Innovation Building 940 Heeley Close Kent Science Park Sittingbourne ME9 8HL
• Phone Number: 01795 255 600                             
• Facebook: www.facebook.com/wearekayodigital
• Twitter: x.com/kayo_digital
• Instagram: www.instagram.com/kayo.digital
• Email: sales@kayo.digital

10. IConnect Digital

IConnect Digital are a UK-based agency that work on mobile apps, SaaS platforms, and web solutions, including projects built with Umbraco. Their focus is often on helping founders and businesses move from an idea to a working product, with a process that covers brainstorming, architecture design, development, launch, and iteration. With over a decade of experience, they’ve built long-term relationships with clients, many of which span more than five years.

The agency also provides flexible engagement models, offering both fixed-cost and monthly arrangements depending on project needs. Their team covers app development, UI/UX, e-commerce, and custom software, alongside support for reviving or maintaining existing products. With offices across multiple regions and more than 50 developers, they position themselves as a partner for both early-stage concepts and established businesses needing technical continuity.

Key Highlights:

• Over 10 years of experience in app and web development
• More than 50 developers across global offices
• Long-standing client relationships (5+ years)
• Flexible engagement models (fixed cost or monthly)
• Experience in both SaaS platforms and Umbraco builds

Services:

• Mobile app design and development
• SaaS product development
• Umbraco website projects
• UI/UX and e-commerce solutions
• Support, maintenance, and app revival

Contact Information:

• Website: iconnectdigital.co.uk
• Address: Dns House, 382 Kenton Road, Harrow, London, Middlesex, United Kingdom, HA3 8DP
• Email: reach@iconnectdigital.co.uk

11. fastfwd

fastfwd are a Birmingham-based Umbraco development agency with experience in building websites, intranets, and custom digital systems. They are an Umbraco Registered Partner and take a user-centred approach to web design, pairing their in-house designers with .NET developers to create sites that are both functional and visually consistent across devices. Their focus goes beyond the build itself, offering long-term support, training, and maintenance to help clients keep their platforms secure and up to date.

Their team highlight Umbraco’s flexibility for a range of use cases, from content-driven websites to cloud applications and internal communications platforms. They stress transparency in their process, keeping clients involved at every stage with dedicated project managers who also have technical knowledge. This combination of design, development, and ongoing support allows them to deliver tailored solutions that continue to evolve after launch.

Key Highlights:

• Umbraco Registered Partner based in Birmingham
• Blend of design and technical development with in-house teams
• Experience with websites, intranets, and cloud-based systems
• Transparent development process with dedicated project managers
• Emphasis on long-term support and training for clients

Services:

• Umbraco website design and development
• Custom system builds and intranets
• CMS installation, updates, and maintenance
• Hosting, configuration, and plugin setup
• Ongoing support and training

Contact Information:

• Website: www.fastfwd.com
• Address: Suite 3, Falcon Works House, 40 Regent Pl, Birmingham B1 3NN, UK
• Phone Number: +44 121 236 8007
• Email: website@fastfwd.com

12. Fresh Egg

Fresh Egg are a UK-based digital agency and an Umbraco Platinum Partner. They use the CMS to build websites that range from straightforward content platforms to complex, multi-channel solutions. Their team focus on user-friendly interfaces and scalable builds, often combining Umbraco with a headless approach to deliver faster front-end experiences. The aim is to give clients flexibility in managing their content while ensuring performance and long-term adaptability.

Alongside development, they support organisations with research-driven optimisation and ongoing strategy. Case studies show results such as increased sales, higher conversion rates, and improved site speed following Umbraco implementations. Their projects cover sectors like insurance, property, healthcare, and non-profits, reflecting the CMS’s versatility across industries.

Key Highlights:

• Umbraco Platinum Partner with a broad client base
• Experience with headless CMS for multi-channel delivery
• Research-driven design and optimisation methods
• Projects include insurance, real estate, and charity websites
• Recognised with awards for design and development work

Services:

• Umbraco website design and development
• Headless CMS builds for speed and scalability
• Content migration and system integrations
• UX research and digital strategy support
• Ongoing optimisation and performance improvements

Contact Information:

• Website: www.freshegg.co.uk
• LinkedIn: www.linkedin.com/company/fresh-egg
• Address: 1-13 Buckingham Road,Worthing,West Sussex, BN11 1TH United Kingdom
• Phone Number: 01903 337 580
• Facebook: www.facebook.com/FreshEggUK
• Twitter: x.com/freshegg
• Instagram: www.instagram.com/freshegguk

13. Hotbox Studios

Hotbox Studios are a Hampshire-based agency with more than 20 years of experience in Umbraco web design and development. Their team combines creative design with technical implementation, often emphasising mobile-first, responsive builds that adapt across devices. They have delivered projects for a wide mix of organisations, from local authorities and charities to commercial clients.

Their portfolio includes work for platforms like PAAM Software App and DC Site Services, where they customised Umbraco builds to meet specific operational needs. These projects often include custom navigation, SVG graphics, JavaScript integrations, and features such as Umbraco Forms and Google Maps. Ongoing support is also a key part of their offering, ensuring that clients have reliable help long after launch.

Key Highlights:

• Experience with Umbraco CMS for diverse sectors
• Strong focus on mobile-first responsive design
• Portfolio includes events, education, and public sector websites
• Emphasis on ongoing support and maintenance

Services:

• Umbraco website design and development
• Custom theme and feature implementation
• Responsive and mobile-first web builds
• Integration with third-party tools and APIs
• Long-term support and optimisation

Contact Information:

• Website: www.hotboxstudios.co.uk
• LinkedIn: www.linkedin.com/company/hotbox-studios
• Phone Number: 01252 849600
• Facebook: www.facebook.com/hotboxstudiosuk
• Twitter: x.com/hotboxstudiosuk
• Instagram: www.instagram.com/hotboxstudios
• Email: info@hotboxstudios.co.uk

14. IDS Logic

IDS Logic is an Umbraco development agency with offices in Leeds and London, as well as international locations. With more than 18 years of experience, they focus on building scalable websites and applications on the Umbraco CMS. Their team of developers follow agile methods and work on projects that range from corporate websites to integrated platforms linked with ERP and CRM systems. Security and long-term maintenance are also a recurring theme in their offering, supported by 24/7 support and upgrade services.

The agency presents Umbraco as a flexible framework that can serve both straightforward sites and large, multi-language platforms. Their case studies show work for well-known UK organisations across sectors like removals, healthcare, and charities. By combining Umbraco’s customisation capabilities with Microsoft’s .NET framework, they create solutions that can adapt to complex workflows and regulatory needs.

Key Highlights:

• Umbraco specialists with offices in Leeds and London
• Use of agile methodology for project delivery
• Experience with ERP and CRM integrations
• 24/7 maintenance and support services

Services:

• Umbraco website design and custom development
• Module, theme, and template development
• ERP and CRM integrations
• Hosting, updates, and platform maintenance
• Support and consultation for existing Umbraco sites

Contact Information:

• Website: www.idslogic.co.uk
• LinkedIn: www.linkedin.com/company/ids-logic-uk
• Address: 7 Commercial Street, Morley, Leeds, LS27 8HX, UK
• Phone Number:  +44 (0)1135 316 314
• Facebook: www.facebook.com/idslogic
• Instagram: www.instagram.com/idslogic
• Email: info@idslogic.co.uk

Conclusion

The landscape of Umbraco web design agencies in the UK is diverse, with each team bringing its own strengths to the table. Some focus on creative design and user experience, while others lean into technical integration, infrastructure, or long-term support. What they share is a commitment to using Umbraco as a flexible platform that adapts to projects of all shapes and sizes, from small campaign sites to enterprise-level solutions.

For businesses, the choice often comes down to matching needs with expertise. Whether it’s a straightforward build, a multilingual platform, or a complex system integration, there are agencies across the UK with the experience to deliver. Exploring their portfolios and approaches offers a good sense of how Umbraco can be shaped into a tool that not only meets today’s requirements but continues to evolve as digital needs grow.