Keeping a CMS like Umbraco running smoothly isn’t just about pressing the update button. New versions bring security fixes, fresh features, and sometimes the odd curveball that needs expert handling. For businesses that rely on Umbraco to power their sites, having the right partner to manage those updates can mean the difference between a seamless upgrade and a week of broken pages.

In this guide, we’re looking at the companies that focus on Umbraco updates and long-term support. They’re the ones who know the quirks, keep on top of new releases, and make sure your site stays fast, secure, and functional without the drama.

1. Oski Solutions 

At Oski Solutions, we build websites and digital tools that are meant to work without unnecessary clutter. A lot of our projects involve Umbraco, whether it’s keeping existing sites updated, moving older builds to newer versions, or making sure the CMS feels like something teams actually want to use. We don’t treat upgrades as just a technical task - for us it’s also a chance to tidy things up, smooth out pain points, and make content management simpler for the people behind the site.

We also get involved in new builds and custom development when a business needs more than the basics. That might mean redesigning how a site looks and functions, hooking Umbraco into other systems, or creating features that fit specific workflows. Our approach is straightforward: build things that work, keep them running well, and avoid the kind of overcomplication that makes sites harder to manage than they should be.

Key Highlights:

• UK-based team working across design and development
• Regular experience with Umbraco upgrades and support
• Focus on practical improvements alongside updates
• Combines design, content, and technical development
• Works with both new builds and existing websites

Services:

• Umbraco upgrades and maintenance
• Website design and development
• CMS support and improvements
• Custom feature development
• System integration
• Ongoing technical support

Contact Info:

• Website: oski.site
• Email: contact@oski.site
• Phone: +48571282759
• Address: Kaupmehe tn 7-120, Tallinn, Estonia 10114
• LinkedIn: www.linkedin.com/company/oski-solutions

2. Crumpled Dog 

Crumpled Dog is a London-based digital agency that has worked with Umbraco for a long time. They focus on making sure websites built on this CMS stay current, secure, and ready for whatever updates roll out next. Instead of just patching things when they break, their approach leans on careful planning so updates don’t become a headache later. They’ve handled upgrades for a mix of clients, from local businesses to bigger organizations, which means they’ve probably seen most of the typical pitfalls before.

Outside of Umbraco updates, they also work on design and development projects. That could be building a new feature, improving the way content is managed, or helping a site run smoother. The point is, they aren’t just locked into one-off fixes. They’re set up to provide ongoing support so websites don’t lag behind as the platform keeps moving forward.

Key Highlights:

• Long-standing experience with Umbraco CMS
• Focus on smooth upgrades and maintenance
• Works with a mix of business sizes and sectors
• Provides both project-based and ongoing support
• London-based digital team

Services:

• Umbraco upgrades and updates
• Website design and development
• CMS support and maintenance
• Custom feature development
• Hosting and infrastructure help
• Content management improvements

Contact Info:

• Website: www.crumpled-dog.com
• Email: info@crumpled-dog.com
• Phone: 02077395553
• Address: Runway East Shoreditch 52 Tabernacle Street London EC2A 4NJ
• LinkedIn: www.linkedin.com/company/crumpled-dog
• Twitter: x.com/crumpled_dog
• Facebook: www.facebook.com/CrumpledDogLondon
• Instagram: www.instagram.com/crumpleddog

3. Addxp

Addxp is a digital agency that works with Umbraco as part of their wider web projects. They tend to take on the parts of a site that need regular care, which usually includes handling updates, making tweaks when new versions roll out, and helping clients avoid the common snags that come with CMS upgrades. Their approach is fairly straightforward: keep sites running well and step in when something needs fixing or improving.

Alongside updates, they also get involved in building new features and shaping websites to better fit what clients actually need. That might mean redesigning parts of a site, tightening up performance, or adding something new on top of what’s already there. It’s less about pushing shiny extras and more about keeping sites stable and useful for the people who rely on them.

Key Highlights:

• Focus on Umbraco upgrades and ongoing support
• Works on both maintenance and new feature development
• Keeps updates practical rather than overcomplicated
• Experience with a range of client needs
• Based in the UK

Services:

• Umbraco updates and upgrades
• Website design and development
• Custom feature builds
• CMS support and troubleshooting
• Performance improvements
• Hosting and infrastructure help

Contact Info:

• Website: www.addxp.com
• Email: info@addxp.com
• Phone: 919427722717
• Address: 7322 Southwest Fwy, office 602, Houston 77077, Tx, United States.
• LinkedIn: www.linkedin.com/company/addxp-technologies
• Twitter: x.com/addxptech
• Facebook: www.instagram.com/addxptechnologies
• Instagram: www.facebook.com/addxptechnologies

4. Foremost Media 

Foremost Media is a US-based agency that builds and maintains websites, with Umbraco being one of the platforms they work with regularly. Their role often comes in when a company needs help keeping a site updated, whether that’s moving to a newer version of Umbraco or sorting out issues that appear along the way. They lean on practical experience, so most of their projects are about making sure the site stays secure, stable, and manageable for the people who use it day to day.

Beyond updates, they handle broader web development work. That might mean designing something new, improving existing functionality, or tailoring a CMS to fit a specific business need. They don’t overcomplicate things, preferring to keep projects grounded and focused on what will actually make a difference to how a site runs.

Key Highlights:

• Works with Umbraco as part of wider web projects
• Provides ongoing support and troubleshooting
• Experience with upgrades and migrations
• Focus on stability and ease of use
• Based in the United States

Services:

• Umbraco updates and upgrades
• Website design and development
• CMS support and maintenance
• Custom feature development
• Hosting and infrastructure help
• Performance improvements

Contact Info:

• Website: www.foremostmedia.com
• Phone: +16084706976
• Address: 207 N Academy St. #200 Janesville, WI 53548 
• LinkedIn: www.linkedin.com/company/foremost-media-inc
• Twitter: x.com/foremostmedia
• Facebook: www.facebook.com/foremostmediausa
• Instagram: www.instagram.com/foremost_media

5. Diagram 

Diagram is a US-based agency that works with content management systems like Umbraco to build and maintain websites. Their projects often involve helping clients keep sites updated as new versions of Umbraco roll out, making sure everything runs smoothly without downtime or broken features. They tend to take a hands-on approach, so when they step in on an update, they’re also thinking about how the site is actually being used and what could be improved at the same time.

They don’t just stop at updates either. Diagram also handles the design and development side, which might include reshaping site structure, building custom tools, or working out how to integrate third-party systems. In practice, it means they’re not just problem-solvers but also the people shaping how a site grows over time.

Key Highlights:

• Works with Umbraco CMS for updates and development
• Focus on practical improvements during upgrades
• US-based agency with experience across sectors
• Handles both design and technical aspects of websites
• Known for combining support with long-term planning

Services:

• Umbraco upgrades and maintenance
• Website design and development
• Custom CMS features
• System integration
• Performance and usability improvements
• Ongoing technical support

Contact Info:

• Website: www.wearediagram.com
• Phone: 6303756833
• Address: 55 South Main St. Suite 230 Naperville, IL 60540
• LinkedIn: www.linkedin.com/company/wearediagram
• Twitter: x.com/wearediagram
• Facebook: www.facebook.com/wearediagram
• Instagram: www.instagram.com/heydiagram

6. CTI Digital 

CTI Digital is a UK agency that deals with a wide range of digital projects, and Umbraco work is one of the areas they cover. They usually step in when businesses need help managing upgrades, keeping sites secure, or shaping content management so it actually fits how teams work. Their experience with Umbraco comes from handling it as part of broader development projects, so they’re not just updating for the sake of it but making sure the site keeps moving forward without causing extra hassle.

They also run larger digital builds, which can mean pulling in different technologies alongside Umbraco. That might involve reworking design elements, integrating third-party tools, or rolling out new features. In short, they don’t just maintain sites but help shape how they evolve over time, which can be useful for companies that don’t want to juggle multiple partners for design, support, and development.

Key Highlights:

• UK-based agency with broad digital experience
• Works with Umbraco as part of larger projects
• Focus on upgrades, security, and long-term stability
• Handles both technical and design aspects
• Used to working with a mix of client sizes

Services:

• Umbraco upgrades and support
• Website design and development
• Custom feature builds
• System integration
• CMS maintenance and improvements
• Ongoing digital support

Contact Info:

• Website: www.ctidigital.com
• Email: sales@ctidigital.com
• Phone: 01617132434
• Address: South Central 11 Peter Street Manchester M2 5QR
• LinkedIn: www.linkedin.com/company/cti-digital
• Twitter: x.com/ctidigitaluk
• Facebook: www.facebook.com/ctidigitaluk
• Instagram: www.instagram.com/cti_digital

7. Marcel Digital 

Marcel Digital is a Chicago-based agency that works across web development and digital strategy, with Umbraco sitting firmly in their toolkit. They usually come in when businesses need help keeping their sites current, whether that means moving to a new version of Umbraco, tidying up older builds, or making sure a site stays secure and functional after updates. Their work is practical in nature, focusing on stability and making sites easier to manage for the people actually running them day to day.

On top of the update work, they also handle broader projects that link development with design and digital marketing. That often means reshaping websites to perform better, adding new features, or finding ways to make content management less of a headache. They bring different parts of the puzzle together, so businesses don’t need to bounce between multiple partners to get their site updated, supported, and improved.

Key Highlights:

• Chicago-based agency with digital and web focus
• Regular experience with Umbraco upgrades and support
• Works on long-term site stability and usability
• Combines development with design and marketing input
• Handles both new builds and older site improvements

Services:

• Umbraco upgrades and maintenance
• Website development and redesign
• CMS support and improvements
• Custom feature development
• Digital strategy support
• Ongoing technical assistance

Contact Info:

• Website: www.marceldigital.com
• Phone: 18722504536
• Address: 445 W Erie St, Suite 200 Chicago, IL 60654 USA
• LinkedIn: www.linkedin.com/company/marcel-digital
• Twitter: x.com/marceldigital
• Facebook: www.facebook.com/marceldigital
• Instagram: www.instagram.com/officialmarceldigital

8. Kayo Digital

Kayo Digital is a UK agency that handles web projects with a practical mindset. When it comes to Umbraco, they usually help businesses keep their sites up to date, making sure upgrades don’t cause issues behind the scenes. Their work often focuses on making sites easier to run and ensuring the tools people rely on every day keep working without fuss. They approach updates in a straightforward way, aiming to get things stable and reliable rather than overcomplicating the process.

Outside of updates, Kayo Digital also gets involved in building and reshaping websites. That could mean redesigning layouts, adding new features, or tweaking performance so sites load faster and work better for visitors. They tend to mix technical know-how with design input, which means clients don’t have to juggle multiple partners for different parts of a project.

Key Highlights:

• UK-based digital agency
• Works with Umbraco for updates and support
• Focuses on keeping sites stable and user-friendly
• Mix of technical development and design work
• Experience across different business sectors

Services:

• Umbraco upgrades and maintenance
• Website design and development
• CMS support and troubleshooting
• Custom feature development
• Performance improvements
• Ongoing digital support

Contact Info:

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

9. CSI Media 

CSI Media is a UK-based agency that takes on web projects with a mix of design and technical development, and Umbraco is one of the platforms they’ve worked with for years. Their role often comes down to making sure sites stay current, handling the upgrade process, and giving clients a CMS that’s easier to manage day to day. When they do update work, they look at the bigger picture too, not just the version number, but also whether the site could use tweaks to improve how it runs.

They also handle broader web builds and custom development. That might mean putting together new features, improving the user experience, or finding ways to connect Umbraco with other systems. Their projects tend to balance design with function, so the final site isn’t just technically sound but also practical for the people who actually use it.

Key Highlights:

• UK-based digital agency
• Long experience with Umbraco CMS
• Works on upgrades, stability, and usability
• Mix of design and development input
• Handles both small updates and bigger builds

Services:

• Umbraco upgrades and maintenance
• Website design and development
• CMS improvements and support
• Custom feature development
• System integrations
• Ongoing digital support

Contact Info:

• Website: www.csimedia.net
• Email: enquiries@csimedia.net
• Phone: 03448730073
• Address: 4 Mallard Court Mallard Way Crewe Cheshire CW1 6ZQ  
• LinkedIn: www.linkedin.com/company/csi-media 
• Twitter: x.com/csimedia
• Facebook: www.facebook.com/csimediauk

10. Webreality 

Webreality is a UK agency that looks after a range of digital projects, with Umbraco being one of the platforms they use for content management. Their work often covers keeping sites updated and making sure upgrades don’t break anything behind the scenes. They focus on practical fixes and steady improvements, so the businesses they work with can manage their sites without getting caught up in technical issues.

Beyond the update work, Webreality also takes on broader development and design projects. That can mean building new sites from scratch, refreshing existing ones, or adding custom features that make day-to-day management easier. They tend to approach projects with a mix of design and technical thinking, which means the end result usually balances both how a site looks and how it runs.

Key Highlights:

• UK-based digital agency
• Works with Umbraco CMS for updates and build
• Focus on stability and usability
• Mix of design and development services
• Experience with both new projects and existing sites

Services:

• Umbraco upgrades and maintenance
• Website design and development
• Custom feature development
• CMS support and improvements
• System integrations
• Ongoing technical support

Contact Info:

• Website: www.webreality.co.uk
• Email: support@webreality.co.uk
• Phone: +441534488888
• Address: Webreality Commercial House Commercial Street St Helier Jersey JE2 3RU
• LinkedIn: www.linkedin.com/company/webreality
• Twitter: x.com/wearewebreality
• Facebook: www.facebook.com/wearewebreality
• Instagram: www.instagram.com/wearewebreality

11. GrowCreate

GrowCreate is a UK agency that works closely with Umbraco, handling everything from fresh builds to keeping existing sites in shape. A big part of their work is helping businesses deal with upgrades, making sure older sites can move onto newer versions without problems. They also spend time refining how content is managed so teams aren’t wrestling with the CMS just to publish something simple. Their approach is practical, keeping sites running smoothly while giving clients more control over their digital setup.

Alongside updates, GrowCreate also develops custom features and works on integrations where Umbraco needs to connect with other systems. They’re used to balancing technical tasks with design input, so their projects often involve making sites both easier to manage and better to use. They tend to look at the long term too, aiming for websites that stay reliable and don’t require constant fixes down the line.

Key Highlights:

• UK-based agency with a strong focus on Umbraco
• Handles upgrades and long-term site support
• Works on improving usability and content management
• Mix of technical development and design work
• Experience with integrations and custom builds

Services:

• Umbraco upgrades and maintenance
• Website development and redesign
• Custom feature development
• CMS support and improvements
• System integrations
• Ongoing technical support

Contact Info:

• Website: growcreate.co.uk
• Email: hello@growcreate.co.uk
• Phone: 01844 202522 
• LinkedIn: www.linkedin.com/company/growcreate
• Instagram: www.instagram.com/growcreatewebagency

12. Nutty About Hosting

Nutty About Hosting is a UK-based company that looks after hosting, web development, and CMS support. They’ve worked with Umbraco for years, usually stepping in to handle updates, upgrades, and the kind of maintenance that keeps a site stable. Because they also manage hosting, they’re in a good spot to cover both the server side and the CMS side, which means fewer gaps when things need fixing or updating.

They also do general web development work, which can include new builds, redesigns, or adding features to existing sites. Their approach is usually straightforward and focused on keeping websites running without unnecessary complexity. For businesses using Umbraco, that means having someone who can deal with both the underlying infrastructure and the day-to-day CMS updates.

Key Highlights:

• UK-based team covering hosting and web development
• Experience with Umbraco updates and support
• Handles both infrastructure and CMS needs
• Works with new builds and existing sites
• Practical approach to maintenance and upgrades

Services:

• Umbraco upgrades and maintenance
• Web hosting and server management
• Website design and development
• CMS support and troubleshooting
• Custom feature development
• Ongoing technical support

Contact Info:

• Website: www.nuttyabouthosting.co.uk
• Email: hello@nuttyabouthosting.co.uk
• Phone: 01803 467863 
• LinkedIn: www.linkedin.com/company/nutty-about-hosting

13. Vsourz 

Vsourz is a digital agency with offices in the UK and abroad, and they cover a wide mix of services that include working with Umbraco. A lot of their Umbraco work comes down to handling upgrades, keeping sites running properly, and making sure businesses can manage content without running into unnecessary problems. Because they sit across design, development, and support, they tend to approach Umbraco as part of a bigger picture rather than a one-off job.

They also build new websites and add custom features where needed. That might be anything from redesigning layouts to hooking Umbraco into other systems so businesses can use it more effectively. Their projects usually balance the technical work with usability, so clients don’t just end up with an updated site but one that’s actually easier to run.

Key Highlights:

• UK-based with international offices
• Experience with Umbraco upgrades and support
• Combines design, development, and ongoing maintenance
• Works with both new builds and existing sites
• Focus on usability and practical outcomes

Services:

• Umbraco upgrades and maintenance
• Website design and development
• CMS improvements and support
• Custom feature development
• System integration
• Long-term digital support

Contact Info:

• Website: www.vsourz.com
• Phone: +44 020 3372 5711
• Address: 307 Euston Rd, London NW1 3AD 
• LinkedIn: www.linkedin.com/company/vsourz-agency
• Twitter: x.com/vsourz_agency
• Facebook: www.facebook.com/vsourz.agency
• Instagram: www.instagram.com/vsourz.agency

14. 16i 

16i is a UK-based agency that works across design, development, and digital support, with Umbraco being one of the platforms they regularly use. They often help clients with upgrades, making sure older sites can move onto newer versions without breaking anything important along the way. Their approach is fairly grounded, looking at what’s actually needed to keep a site running smoothly rather than pushing unnecessary extras.

They also take on bigger web projects, from new builds to redesigns, where Umbraco is part of the stack. That can involve building custom features, improving usability, or connecting different systems together so businesses have a setup that works in practice. Their work usually blends design with the technical side, so the final outcome isn’t just functional but also easier to use and manage.

Key Highlights:

• UK-based digital agency
• Experience with Umbraco upgrades and maintenance
• Works on both new builds and existing sites
• Mix of design and technical development
• Focus on practical, long-term site stability

Services:

• Umbraco upgrades and support
• Website design and development
• Custom feature development
• CMS improvements and maintenance
• System integration
• Ongoing digital support

Contact Info:

• Website: www.16i.co.uk
• Email: hello@16i.co.uk
• Phone: +44 (0)1242 654 000
• Address: 6 Rockfield Business ParkOld Station Drive Cheltenham Gloucestershire GL53 0AN
• LinkedIn: www.linkedin.com/company/16-interactive
• Instagram: www.instagram.com/16interactive

15. Moriyama 

Moriyama is a UK company that has spent a lot of time working with Umbraco, from updates to full-scale development projects. They often come in when businesses need help keeping their sites secure and up to date, especially if upgrades have been left for a while and things are no longer running smoothly. They’ve got experience with both small fixes and bigger changes, so their role often depends on what stage the client’s site is at.

Aside from upgrades, Moriyama also handles new builds, custom features, and ongoing support. They work with companies that want a site tailored to how they actually use it, whether that’s easier content management or integrating Umbraco with other systems. Their approach tends to be straightforward and focused on solving the practical issues that come with running a CMS over time.

Key Highlights:

• UK-based company focused on Umbraco projects
• Experience with upgrades, support, and new builds
• Works with both small fixes and larger overhauls
• Helps integrate Umbraco with other systems
• Practical approach to long-term site maintenance

Services:

• Umbraco upgrades and maintenance
• Website development and redesign
• Custom feature development
• CMS support and troubleshooting
• System integrations
• Ongoing technical assistance

Contact Info:

• Website: moriyama.co.uk
• Email: contact@moriyama.co.uk
• Phone: +442037454285
• Address: 500 7th Avenue New York, USA, NY 10018
• LinkedIn: www.linkedin.com/company/moriyama
• Twitter: x.com/moriyamaumbraco
• Facebook: www.facebook.com/moriyamalondon

Conclusion

Working with Umbraco isn’t just about hitting updates and hoping for the best. Different companies bring their own angle to the table - some lean more on design, others focus on technical upkeep, and a few manage the whole package from hosting through to long-term support. The point is, you’ve got options.

If your site’s due for an upgrade or you’re thinking about building something new, it’s worth finding a partner who fits how you like to work. Starting small, even with a single update or feature build, can be a simple way to see if the fit feels right before diving into something bigger.