Let’s face it, data is everywhere, but most of it doesn’t arrive in a neat, usable package. Different systems, formats, and silos often turn information into more of a burden than a resource and that’s where data transformation companies step in. They’re the ones who take messy, fragmented inputs and turn them into something clean, structured, and actually useful.
In the UK, there’s a growing set of firms doing this well, combining technical expertise with a practical understanding of how businesses really work, some of them focus on heavy-duty integrations across enterprise systems, while others specialize in helping teams get faster insights without drowning in spreadsheets. In this article, we’ll look at the leading players in the UK market and what makes each of them worth knowing about if you’re serious about using data instead of just storing it.
1. A-Listware
At A-Listware, we work as a team of developers and consultants who spend most of our time building and supporting custom software solutions. A lot of our projects are about helping businesses manage their data better, whether that means creating new systems, connecting old ones, or just making sure information flows without constant manual effort. We’ve worked with clients in different industries, and we’ve seen that the challenges usually come down to the same thing: too many tools that don’t talk to each other.
For our UK clients, we’ve found the focus is often on modernising existing systems rather than starting from scratch. Companies want their data to be more accessible and their processes to be more efficient, but they don’t want to throw away what they already have. That’s where we step in, creating solutions that fit around their current setup and make it easier to scale without adding unnecessary complexity.
Key Highlights:
- Team of developers and consultants with hands-on project experience
- Work with businesses across industries, including UK clients
- Focus on practical data and system improvements
- Support both new software builds and existing system upgrades
- Keep solutions straightforward and easy to maintain
Services:
- Custom software development
- Data integration and transformation
- API development and system connectivity
- Cloud migration and support
- Legacy system modernisation
- Ongoing maintenance and consultancy
Contact Info:
- Website: a-listware.com
- Email: info@a-listware.com
- Facebook: www.facebook.com/alistware
- LinkedIn: www.linkedin.com/company/a-listware
- Address: St. Leonards-On-Sea, TN37 7TA, UK
- Phone Number: +44 (0)142 439 01 40
2. Accenture
Accenture isn’t exactly an unknown name. In the UK, you’ll usually find them working with big organizations that have piles of data scattered across different systems and no clear way to make sense of it. Their job is often about untangling that mess so the information is not just stored but actually useful. They’ve got teams that move between industries all the time, which means they’ve seen everything from retail customer data chaos to complex finance reporting setups.
What makes them stand out is that they don’t just shift data from A to B. They look at how a business runs and then figure out how the information can support that. Sometimes it’s cloud migration, sometimes it’s rethinking analytics, and other times it’s nudging a company to change how people actually use the tools they already have. It’s more about making data work in the real world than showing off shiny dashboards.
Key Highlights:
- Helps companies actually use the data they collect
- Works across industries instead of sticking to one niche
- Handles big, complex projects without losing the details
- Mixes tech solutions with practical business changes
- UK teams tied into their global network
Services:
- Data transformation and migration
- Cloud integration and modernization
- Business intelligence and analytics
- Digital strategy and consulting
- Legacy system upgrades
- Ongoing support for large organizations
Contact Info:
- Website: www.accenture.com
- Phone: +441215162501
- Address: Cornerblock, 2 Cornwall Street, Birmingham, West Midlands, United Kingdom, B3 2DX
3. KPMG
Most people think of KPMG as an accounting or audit firm, but in the UK they also spend a lot of time helping companies sort out their data. A lot of the work is about untangling messy setups where every department has its own system and nothing matches up. Instead of just crunching numbers, they look at how information fits into the bigger picture of compliance, risk, and how leaders actually make decisions.
They also get called in when businesses want to update the way they store and use data. That could mean shifting things over to the cloud, tightening up governance rules, or showing managers how to put analytics into practice. It’s not flashy work, but it’s the kind of backbone stuff that stops companies from getting stuck with outdated systems or making choices without the right information in front of them.
Key Highlights:
- Known for their roots in audit and finance
- Help large companies bring scattered data together
- Keep governance and risk in mind, not just technology
- Experience across many UK industries
- Used to dealing with complex, long-standing systems
Services:
- Data strategy and governance
- Cloud migration and integration
- Compliance and risk advisory
- Business intelligence and analytics
- System and process modernization
- Long-term advisory support
Contact Info:
- Website: kpmg.com
- Phone: +44 (0)20 7311 1000
- Address: 15 Canada Square, Canary Wharf, London, E14 5GL UK
- LinkedIn: www.linkedin.com/company/kpmg-uk
- Twitter: x.com/kpmguk
4. Kyndryl
Kyndryl is a company that spun out of IBM a few years back, so their roots are very much in managing large-scale IT systems. In the UK, they spend a lot of their time helping organizations keep their data environments stable while also making them more flexible. That usually means taking on the heavy lifting of infrastructure work that most businesses don’t really want to deal with in-house.
They’re often involved when companies want to modernize how their data is stored and moved around. Sometimes that’s about shifting systems to the cloud, other times it’s about making sure legacy setups still run smoothly while new tools are being added. They sit in that middle ground between traditional IT management and newer digital transformation projects, which makes them useful for businesses that can’t just rip everything out and start again.
Key Highlights:
- Came out of IBM with a focus on infrastructure and data
- Helps organizations balance old and new systems
- Works on both cloud-based and on-premises environments
- Involved in long-term IT management as well as upgrades
- UK operations supported by a wider global network
Services:
- IT infrastructure management
- Data transformation and migration
- Cloud integration and hosting support
- Legacy system maintenance
- Cybersecurity and resilience services
- Ongoing managed services
Contact Info:
- Website: www.kyndryl.com
- Email: sales@kyndryl.com
- Phone: +1.929.769.4800
- Address: 2nd Floor, 100 Liverpool Street, London, United Kingdom, EC2M 2AT
- LinkedIn: www.linkedin.com/company/kyndryl
- Twitter: x.com/kyndryl
5. Capgemini
Capgemini has been around long enough that most people in tech or business circles have heard of them. In the UK, their role is often about helping organizations take old, clunky systems and figure out how to bring them into the modern world without breaking everything in the process. They don’t just stick to one industry either, so their teams are used to jumping between sectors like public services, banking, or retail and adjusting to whatever quirks those bring.
A lot of their work in data transformation is about connecting strategy with technology. They look at how businesses currently use (or don’t use) their information, then find ways to reorganize it so it’s actually useful. Sometimes that means cloud projects, sometimes it’s analytics, and sometimes it’s just fixing the gaps where data falls through the cracks. They’re more about practical problem-solving than trying to reinvent the wheel.
Key Highlights:
- Long-established consulting and technology background
- Works across many UK industries
- Known for tackling both technical and organizational challenges
- Helps companies modernize without starting from scratch
- Mixes strategy work with hands-on tech projects
Services:
- Data transformation and migration
- Cloud integration and modernization
- Business intelligence and analytics
- IT consulting and strategy support
- Legacy system upgrades
- Ongoing managed services
Contact Info:
- Website: www.capgemini.com
- Phone: 0330 588 8000
- Address: 95 Queen Victoria Street, London, EC4V 4HN UK
- LinkedIn: www.linkedin.com/company/capgemini
- Instagram: www.instagram.com/capgemini_uk
- Facebook: www.facebook.com/CapgeminiUK
6. Fujitsu
Fujitsu has been active in the UK for decades, and their work usually sits at the point where technology and day-to-day business operations meet. They’re often the people keeping large IT environments running while also helping organizations figure out how to handle data in smarter ways. A lot of what they do is less about big flashy projects and more about making sure systems actually keep pace with how businesses change over time.
They tend to get involved when companies want to move away from outdated infrastructure without throwing everything out at once. That could mean helping shift workloads into the cloud, redesigning data processes, or making sure information flows properly across different parts of the business. They’re practical about it, usually focusing on what keeps things stable and useful rather than chasing the latest buzzword.
Key Highlights:
- Long presence in the UK tech and IT services space
- Works across sectors like public services, retail, and finance
- Balances traditional infrastructure with newer cloud approaches
- Known for focusing on stability as well as transformation
- Mixes local UK delivery with global resources
Services:
- IT infrastructure and management
- Data transformation and migration
- Cloud integration and hosting support
- Business intelligence and analytics
- Legacy system modernization
- Managed services and ongoing support
Contact Info:
- Website: global.fujitsu
- Phone: +44 (0) 1235 797770
- Address: Lovelace Road, Bracknell RG12 8SN United Kingdom
- LinkedIn: www.linkedin.com/company/fujitsu
- Facebook: www.facebook.com/FujitsuICT
- Twitter: x.com/Fujitsu_Global
7. Hitachi Vantara
Hitachi Vantara is basically the data and IT arm of the wider Hitachi group. In the UK, they spend a lot of their time helping companies deal with information that’s stuck in outdated systems or spread across too many places at once. They’re not just about putting in new tech for the sake of it, but about making sure whatever setup is in place actually supports how a business runs day to day.
They often end up working in that tricky middle ground where old systems still need to function but newer tools are being brought in. That might be moving parts of the business into the cloud, tidying up data processes, or figuring out how to make analytics less of a headache. They take a practical approach, focusing on what’s workable now while slowly nudging things toward more modern and flexible solutions.
Key Highlights:
- Offshoot of the larger Hitachi group
- UK teams working on data and IT infrastructure projects
- Often deal with businesses balancing old and new systems
- Practical focus on usability, not just new tech
- Backed by global resources and experience
Services:
- Data management and transformation
- IT infrastructure support and upgrades
- Cloud migration and hosting
- Analytics and business intelligence
- Legacy system maintenance
- Managed IT services
Contact Info:
- Website: www.hitachivantara.com
- Phone: +44.1753.618.000
- Address: Ground and Lower Ground Floor Capitol Business Park Oldbury Bracknell, RG12 8FZ, United Kingdom
- LinkedIn: www.linkedin.com/company/hitachi-vantara
- Twitter: x.com/HitachiVantara
- Facebook: www.facebook.com/HitachiVantara
8. EY
EY, or Ernst & Young if you prefer the long version, is another one of those big professional services firms people usually associate with accounting. In the UK though, a good chunk of their work is wrapped up in data and digital projects. They often deal with organizations that have information scattered everywhere and need a clearer way to pull it together for compliance, reporting, or just day-to-day decision making.
Their teams don’t only focus on the technical side. A lot of what they do involves helping companies change how they actually use data inside the business. That could mean setting up proper governance frameworks, shifting workloads to the cloud, or making analytics less of a side task and more part of everyday operations. They sit somewhere between management consulting and IT delivery, which makes sense given their background.
Key Highlights:
- Strong roots in accounting and compliance
- UK teams working across finance, public services, and other sectors
- Focuses on governance as much as technology
- Helps companies organize scattered data into usable systems
- Balances advisory work with hands-on implementation
Services:
- Data governance and strategy
- Cloud migration and integration
- Compliance and risk-focused data work
- Business intelligence and analytics
- Legacy system modernization
- Ongoing consulting and support
Contact Info:
- Website: www.ey.com
- Phone: +44 20 7951 2000
- Address: 1 More London Place, London SE1 2AF UK
- LinkedIn: www.linkedin.com/company/ernstandyoung
- Twitter: x.com/EYnews
- Facebook: www.facebook.com/Ernst-Young
9. Infosys
Infosys is a tech services company with a footprint in the UK. Their teams usually work with large organizations that have sprawling IT systems and want to get more value out of their data. They’re often called in to handle the unglamorous but necessary work of making sure systems actually talk to each other and that information flows in a way people can use.
A lot of their projects in the UK revolve around digital transformation, which can mean anything from modernizing old infrastructure to setting up analytics platforms or moving workloads to the cloud. They tend to combine technical delivery with consulting, so they’re not just building tools but also showing companies how to use them in a practical, day-to-day way.
Key Highlights:
- Strong presence in the UK alongside global operations
- Works with large organizations across multiple industries
- Focus on making IT systems and data more usable
- Mix of consulting and technical delivery
- Experience with both legacy systems and newer platforms
Services:
- Data transformation and migration
- Cloud adoption and integration
- Business intelligence and analytics
- IT consulting and strategy
- Legacy system upgrades
- Ongoing managed services
Contact Info:
- Website: www.infosys.com
- Phone: +44 20 7715 3300
- Address: 14th and 15th Floor, 10 Upper Bank Street Canary Wharf London E14 5NP UK
- LinkedIn: www.linkedin.com/company/infosys
- Twitter: x.com/Infosys
- Facebook: www.facebook.com/Infosys
10. Wipro
Wipro is a big name in tech, originally from India, but they’ve built a solid presence in the UK too. Most of the time, they’re working with large organizations that have complicated IT setups and a mix of old and new systems that don’t always play nicely together. Their role is often to step in, keep things running, and move parts of the business onto newer platforms without causing chaos in the process.
They’re not only about the nuts and bolts of technology though. A lot of what they do is helping companies actually get value out of their data once it’s been cleaned up and organized. That could be setting up proper analytics, streamlining processes, or just making day-to-day systems easier for teams to work with. They’ve got one foot in keeping legacy systems alive and the other in guiding businesses toward more modern, flexible ways of working.
Key Highlights:
- Global IT company with a strong UK presence
- Helps large organizations manage messy system setups
- Focus on both the tech side and practical business use
- Works across many industries rather than one niche
- Balances legacy support with modernization projects
Services:
- Data integration and transformation
- Cloud migration and management
- Business intelligence and analytics
- IT consulting and advisory work
- Upgrading and supporting legacy systems
- Managed services for ongoing IT needs
Contact Info:
- Website: www.wipro.com
- Email: info@wipro.com
- Phone: +44 (118) 229 1300
- Address: Kings Court, 185 Kings Road, Reading, Berkshire RG1 4EX UK
- LinkedIn: www.linkedin.com/company/wipro
- Facebook: www.facebook.com/WiproLimited
- Instagram: www.instagram.com/wiprolimited
11. Datatonic
Datatonic is a UK outfit that spends most of its time helping companies figure out what to actually do with their data. They often come in when a business has loads of information sitting in different places but no easy way to pull it together. Their work is usually about building systems that make that data usable, whether that’s for reports, automation, or training machine learning models.
They’re also pretty well known for their cloud projects, especially around Google Cloud. Sometimes it’s moving old systems across, sometimes it’s setting up tools so data can be processed in real time instead of waiting around for yesterday’s reports. The aim is usually quite simple: make data less of a headache and more of a tool people can use day to day.
Key Highlights:
- UK-based team with a strong focus on cloud and AI
- Often work with companies sitting on lots of unused data
- Big experience with Google Cloud setups
- Mix of strategy and hands-on delivery
- Practical approach to data problems
Services:
- Data pipeline development and transformation
- Cloud migration and management
- AI and machine learning solutions
- Business intelligence and reporting tools
- Real-time data processing
- Ongoing support and maintenance
Contact Info:
- Website: datatonic.com
- Address: Level 45, One Canada Square, London, E14 5AB, United Kingdom
- LinkedIn: www.linkedin.com/company/datatonic
- Twitter: x.com/teamdatatonic
12. Equal Experts
Equal Experts is a network of consultants rather than a traditional top-down company. In the UK, they work with organisations that need help building and improving their software and data setups. They usually slot in alongside internal teams, bringing in extra experience where things are getting tricky. Instead of focusing only on tools or platforms, they look at how people, processes, and data fit together.
A lot of their projects deal with modernising older systems or helping businesses set up new data platforms without overcomplicating things. They tend to take a straightforward, collaborative approach, which makes them a good fit for companies that don’t just want a big consultancy telling them what to do. It’s more about working alongside teams to get practical results, whether that’s in data pipelines, cloud migration, or software delivery.
Key Highlights:
- Operates as a network of consultants rather than a traditional hierarchy
- Strong UK presence across software and data projects
- Works directly with client teams instead of from the sidelines
- Focus on simplifying complex problems rather than over-engineering
- Experience across cloud, data, and modern software delivery
Services:
- Data engineering and pipelines
- Cloud migration and hosting support
- Software delivery and modernisation
- Business intelligence and analytics
- Legacy system improvements
- Ongoing consultancy and support
Contact Info:
- Website: www.equalexperts.com
- Phone: +44 203 603 7830
- Address: Floor 2, The Stock House 17-18 Britton Street, London EC1M 5NZ UK
- LinkedIn: www.linkedin.com/company/equal-experts
- Twitter: x.com/EqualExperts
13. AND Digital
AND Digital is a UK-based company that helps organisations get their digital projects moving without relying too heavily on outside contractors in the long run. They usually join forces with in-house teams, filling in the gaps on tricky projects while also upskilling the people already there. It’s less about swooping in and taking over, and more about leaving the client in a stronger position once the work is done.
A lot of their focus is on building and improving digital products, but they also work heavily with data. That could mean creating data platforms, getting cloud systems in place, or just helping teams actually make sense of the information they already have. They try to keep things practical, showing companies how to use tools effectively rather than overcomplicating things with layers of jargon.
Key Highlights:
- UK-based consultancy with offices across the country
- Works closely with client teams instead of taking projects away
- Helps companies improve both digital products and data use
- Focus on practical delivery as well as training and upskilling
- Experience with cloud, software, and data transformation
Services:
- Software development and delivery
- Data engineering and analytics
- Cloud migration and integration
- Digital product design and improvement
- Training and team development
- Ongoing consultancy and support
Contact Info:
- Website: www.and.digital
- Address: The Space Holborn, 235 High Holborn, London, WC1V 7DN UK
- LinkedIn: www.linkedin.com/company/and_digital
- Twitter: x.com/AND_Digital
- Instagram: www.instagram.com/and.digital
- Facebook: www.facebook.com/anddigitaluk
14. Baringa
Baringa is a UK-based consultancy that often gets involved when organisations are trying to tackle big changes in the way they work with data and technology. They don’t just stick to one sector either, so their teams can be found working with energy companies, banks, or even public services. The focus tends to be on helping businesses get a clearer view of their information and use it to make decisions that actually hold up in the real world.
They also spend a lot of time on the people and process side of things. It’s not only about plugging in new tools but about making sure the changes fit into the way a company already runs. That might mean setting up governance frameworks, advising on risk, or helping teams build new data platforms that don’t overcomplicate day-to-day work. They keep their approach practical, which is why they often slot into longer-term transformation projects.
Key Highlights:
- UK-based consultancy with a wide industry reach
- Strong focus on energy, finance, and public sector projects
- Works on both data strategy and practical delivery
- Balances tech improvements with governance and risk
- Collaborative approach with in-house teams
Services:
- Data strategy and governance
- Analytics and business intelligence
- Cloud migration and integration
- Risk and compliance advisory
- Process improvement and transformation
- Ongoing consulting and support
Contact Info:
- Website: www.baringa.com
- Phone: +44 (0)20 3327 4220
- Address: 62 Buckingham Gate London SW1E 6AJ United Kingdom
- LinkedIn: www.linkedin.com/company/baringa
Conclusion
The UK has no shortage of companies working in data transformation, but what stands out is the variety. Some are huge consultancies with global reach, others are smaller outfits that slot right into existing teams. Each has its own way of tackling the same core problem: making messy, scattered information actually useful.
For businesses here, it often comes down to choosing the right kind of partner for the stage they’re at. Whether that’s a big change like cloud migration or just getting data to flow properly between systems, there’s a company that’s done it before. The smart move is usually to start small, see how the partnership works, and then build from there.
