10 Best Digital Transformation Companies in the UK

Code District is a strategic technology partner specializing in high-impact digital transformation services.

With a focus on enabling operational efficiency and growth, the firm delivers tailored solutions that include cloud adoption, process automation, AI integration, and application modernization.

Code District’s strength lies in its ability to align modern technology with business goals, ensuring not only technical advancement but also meaningful organizational change.

Their agile delivery model and deep engineering expertise make them particularly well-suited for companies that need to move fast without sacrificing precision.

Among digital transformation companies in the UK, Code District stands out for its ability to combine scalable engineering with user-centric experience design, making it a top choice for mid-sized enterprises and fast-scaling organizations.

Location: London, UK

Services: Digital transformation, custom software development, process automation, AI solutions, cloud engineering

Company Size: 51–200 employees

Website: https://codedistrict.com

BJSS is a well-established technology consultancy known for delivering enterprise-grade digital transformation solutions across the public and private sectors.

The company offers a full range of services, including cloud migration, agile transformation, data analytics, and digital product development.

BJSS emphasizes engineering excellence, agile delivery, and secure-by-design practices, enabling clients to modernize infrastructure and improve service delivery.

Their experience spans healthcare, financial services, and government, with a strong reputation for compliance and risk mitigation.

As one of the top digital transformation companies in the UK, BJSS is uniquely positioned to handle large, mission-critical engagements requiring both scale and agility.

Location: Leeds, UK

Services: Cloud transformation, data engineering, digital product development, software modernization

Company Size: 1,500+ employees

Website: https://www.bjss.com

Thoughtworks is a global technology consultancy with a strong presence in the UK.

The company supports digital transformation by building modern software platforms, enhancing development capabilities, and reengineering legacy systems.

Known for its emphasis on agile delivery and open-source technologies, Thoughtworks helps organizations accelerate innovation through cloud-native architecture, continuous delivery, and AI-powered automation.

Their deep investment in research, ethical tech, and engineering culture further distinguishes them from other digital transformation companies in the UK.

With clients ranging from large enterprises to mission-driven nonprofits, Thoughtworks takes a collaborative, principles-led approach to digital change.

Location: London, UK

Services: Enterprise software development, agile transformation, cloud solutions, AI and automation

Company Size: 12,000+ employees

Website: https://www.thoughtworks.com

Valtech combines digital strategy, design, and engineering to help organizations adapt and thrive in the digital economy.

Their digital transformation services focus on reshaping business models, modernizing platforms, and unlocking data-driven insights.

The firm adopts a pragmatic approach that balances long-term strategy with near-term delivery goals.

Valtech’s ability to integrate creative design with robust engineering practices makes it a go-to partner for large-scale transformation programs.

Their UK operations are central to their European client engagements, particularly in the retail and financial services sectors.

Location: London, UK

Services: Digital strategy, cloud engineering, data analytics, enterprise modernization, customer experience design

Company Size: 1,500+ employees

Website: https://www.valtech.com

Deloitte Digital operates at the intersection of business, technology, and human experience.

The firm provides end-to-end transformation services including cloud modernization, AI-driven analytics, customer experience redesign, and enterprise application strategy.

With access to Deloitte’s global consulting and risk expertise, the digital division ensures transformation initiatives are both ambitious and sustainable.

Deloitte’s influence among digital transformation companies in the UK stems not only from its size but also from its ability to deliver complex, multi-stakeholder change.

Their work frequently spans strategy, governance, and execution, making them well-suited for large enterprises navigating sector-wide shifts.

Location: London, UK

Services: Cloud strategy, digital transformation, customer experience, AI, and data analytics

Company Size: 400,000+ employees 

Website: https://www.deloittedigital.com

Endava focuses on helping organizations accelerate their digital transformation by engineering scalable, secure, and cloud-ready platforms.

The firm blends agile development practices with deep industry knowledge to support modernization of legacy systems, development of digital products, and automation of operational processes.

Their hybrid nearshore delivery model and culture of co-innovation make them a highly efficient transformation partner.

With a growing client base in the UK, Endava is particularly well-positioned to support financial services, insurance, and e-commerce companies.

Location: London, UK

Services: Application modernization, digital product development, agile consulting, automation

Company Size: 11,000+ employees

Website: https://www.endava.com

Capgemini offers large-scale digital transformation services with a strong emphasis on cloud migration, platform modernization, and intelligent process automation.

Its approach integrates emerging technologies with industry-specific insight, enabling clients to unlock new sources of value.

Capgemini’s work in sustainability, data ethics, and social inclusion reinforces its status as one of the most forward-thinking digital transformation companies in the UK.

Their innovation labs and strong partnerships with AWS, Microsoft, and Google Cloud offer clients a fast track to next-generation capabilities.

Location: London, UK

Services: Digital transformation, cloud and data engineering, application modernization, AI and analytics

Company Size: 340,000+ employees 

Website: https://www.capgemini.com

Netcompany is a leading IT services firm that helps public and private sector organizations deliver complex digital transformation programs.

With a strong presence in UK government services, the company emphasizes the rapid deployment of modern digital platforms that improve service delivery and organizational efficiency.

Netcompany’s structured, milestone-driven methodology enables fast, transparent delivery while mitigating the risks associated with large-scale change.

It is considered a top-tier consultancy for mission-critical digital government initiatives in the UK.

Location: London, UK

Services: Digital platforms, enterprise systems integration, agile transformation, cloud migration

Company Size: 7,000+ employees

Website: https://www.netcompany.com

Infinity Group offers end-to-end digital transformation consulting with a focus on cloud adoption, IT infrastructure modernization, and business process automation.

Their Microsoft-centric solutions include Azure, Dynamics 365, and Power Platform, making them an ideal partner for mid-sized organizations already invested in the Microsoft ecosystem.

Their value lies in clear project governance, responsive support, and ongoing optimization. Among smaller digital transformation companies in the UK, Infinity Group’s dedication to service quality and technical enablement is widely recognized.

Location: London, UK

Services: Cloud services, digital transformation consulting, automation, Microsoft platform integration

Company Size: 150+ employees

Website: https://www.infinitygroup.co.uk

AND Digital specializes in building digital capabilities within client organizations, focusing not only on delivery but also on upskilling internal teams.

Its transformation services span digital product development, data strategy, and agile coaching.

By embedding themselves within client teams and promoting a culture of continuous learning, AND Digital ensures organizations are equipped for sustainable digital growth.

Their work in the UK has helped many companies transform both how they build software and how they think about digital innovation.

Location: London, UK

Services: Digital transformation, product development, data and analytics, agile delivery enablement

Company Size: 1,500+ employees

Website: https://www.and.digital

Digital transformation in the UK continues to be a strategic priority across sectors, driven by evolving customer expectations, emerging technologies, and the need for operational resilience.

The companies highlighted in this list represent a cross-section of the most capable and forward-thinking transformation partners in the region.

Their expertise in cloud adoption, automation, customer experience, and AI integration reinforces the UK’s status as a global hub for digital excellence.

While many of these consultancies offer extensive global reach and technical scale, Code District sets itself apart through its tailored, user-centric approach and its ability to align modern technologies with real business goals.

For organizations seeking a partner with both engineering depth and business fluency, Code District offers a compelling blend of innovation, agility, and strategic value, earning its place among the most trusted digital transformation companies in the UK today.