The 10 Best IT Outsourcing Companies in The United Kingdom - 2025 Reviews

Top IT Outsourcing Companies in The United Kingdom

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Elevate your business with top-tier IT Outsourcing companies in the United Kingdom. Our curated list showcases vetted experts in technology solutions, from software development to cloud services. Explore each firm's portfolio and client testimonials to find the perfect match for your needs. Whether you're seeking to streamline operations, enhance cybersecurity, or implement cutting-edge technologies, you'll discover specialists ready to transform your digital landscape. With Sortlist, you can effortlessly post your project requirements, allowing the UK's finest IT Outsourcing firms to reach out with tailored proposals that align with your business objectives and drive innovation.

All IT Outsourcing Firms in The United Kingdom

  • (0 review)
    At Filipino Travel Center, we’re passionate about connecting you to the heart of the Philippines. Whether you’re visiting family, exploring stunning islands, or immersing yourself in Filipino culture, we provide tailored travel solutions to make your trip meaningful and memorable
    Looking for work in IT Outsourcing
    Located in Greater London, United Kingdom
    From €3,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)
    Dotsquares is an award winning offshore website design, mobile apps development and digital outsourcing agency based in East Sussex. Upscale your Bandwidth! Call us Today!
    Looking for work in IT Outsourcing
    Located in Billingshurst, United Kingdom
    From €1,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1001-5000 members
  • (0 review)

    Tailored. Delivered. Achieved.

    We are Influential Software: an 80-strong team of UK-based developers, consultants, and support experts. Pioneering digital transformation for 30 years.
    Looking for work in IT Outsourcing
    Located in London, United Kingdom
    From €1,000 for IT Outsourcing
    Worked in Energy & Oil
    Speaks English
    51-200 members
  • (0 review)

    Accountancy Cloud provides the best full finance stack for startups.

    Online accounting for startups. Digital-first finance, online accounting and CFO support for startups and SMEs. Learn more today.
    Looking for work in IT Outsourcing
    Located in London, United Kingdom
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    Contact Centre & Omni-channel solutions • UK 🇬🇧 • South Africa 🇿🇦 • BPO •

    Kura is a market leader in customer service outsourcing. We're based in Glasgow and work with many successful brands to deliver great customer service.
    Looking for work in IT Outsourcing
    Located in Liverpool, United Kingdom
    From €1,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    Credera is a global boutique consulting firm focused on strategy, transformation, AI, data, and tech

    Credera is a consulting firm focused on strategy, transformation, data, engineering, and cloud.
    Looking for work in IT Outsourcing
    Located in London, United Kingdom
    From €1,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    We offer advice and expertise to organizations to help them improve their business performance on digital platforms.

    Amazon Consultant is dedicated to providing tailored e-commerce consultation. We're committed to provide substantial growth with our experience.
    Looking for work in IT Outsourcing
    Located in Manchester, United Kingdom
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    We help b2b businesses build a predictable pipeline & accelerate growth

    Growth Hub - B2B lead generation, precision-targeted data, outbound campaign strategies. Get more conversations with the right people.
    Looking for work in IT Outsourcing
    Located in London, United Kingdom
    From €1,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    GSL is a well-established IT company based in London, UK. We provide IT Outsourcing & Software Development Services.

    General Softwares-one of the leading IT Outsourcing and IT support companies in London, UK. Delivering IT Support and services in UK since 2004. IT outsourcing London, IT outsourcing companies in London, UK.
    Looking for work in IT Outsourcing
    Located in London, United Kingdom
    From €1,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    Kindus is an IT security, assurance and cyber security risk management consultancy based in England

    At Kindus, we live and breathe IT security and information risk. We know security is complicated and difficult, not least because every member of our team has dedicated their career (and much more besides) to learning it, feeling it, breathing it, and understanding what makes it tick. We think clients deserve nothing less – and to demonstrate this, we named our company after Al Kindi, one of the most inspiration security pioneers of all time. Few challenges are more complex, more interesting, or more difficult to solve well than keeping an enterprise secure. Any security problem can be solved, what’s hard is to solve a business problem at the same time. Our products and services will enable you to improve the acquisition, implementation, management and support of your essential IT infrastructure. We have a specialised team, who are highly qualified and experienced, who develop close relationships with our clients to fully understand their requirements. Working closely with our customers, we consult carefully to find where security problems and inefficiencies lie. We then recommend products that not only meet your needs and solve the problem but also provide greater efficiency and return of investment.
    Looking for work in IT Outsourcing
    Located in Leeds, United Kingdom
    From €1,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    Outsource Your Marketing

    Welcome BBSA a marketing consultancy and the first London-based outsourcing and digital marketing agency. We have offices in the US and London.
    Looking for work in IT Outsourcing
    Located in London, United Kingdom
    From €1,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1-10 members
  • At Clear Cloud we specialise in Azure Management, Skype for business, Office 365 and SharePoint hosting for small business. Get in touch for your free demo!
    Looking for work in IT Outsourcing
    Located in Liverpool, United Kingdom
    From €1,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    Accelerating businesses with new technolоgies

    ACCELERATING BUSINESSES WITH TOP TECHNOLOGIES As a technology and solutions consulting company we bring software innovations to working businesses to increase their efficiency. Our mission is to be the chosen IT business that adds value by designing and implementing tailored IT solutions. We put customer experience at the heart of everything we do. We are a team of passionate solution architects, designers, and engineers. We help our customers achieve their IT goals with excellence. The key areas of our focus are: 1. Business Intelligence, Data Analytics and Artificial Intelligence solutions for Banking and Insurance. We help Banks and other institutions with big amount of data to analyze and make benefits from this data. 2. Customer relationship management (CRM), Enterprise resource planning (ERP) and Warehouses solutions integration and customization. We help Manufactures/Fabricators, Retail and Logistic businesses operate faster and save money on process optimizations. 3. Property management solutions. We help Real Estate companies become more effective and trasparent. 4. Document Management platforms. We help clients like Notary digitalize the industry. 5. Internet of Things solutions. We help clients from Health & Care and Hospitality industries to use different sensors in order to transfer and save valuable data. 6. Reserch &Development offshore delivery centers. We help clients to reduce their IT budget by building their own team in Ukraine based on Build Operate and Transfer model.
    Looking for work in IT Outsourcing
    Located in London, United Kingdom
    From €1,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    Kaleida develop high-quality, bespoke software solutions, including desktop and web applications.

    Kaleida develop high-quality, bespoke software that streamlines business operations. We work closely with our clients to produce business-focused software solutions, including desktop and web applications, that deliver real investment value. Based in Manchester in the North West of England and operating nationwide, we offer comprehensive technology services - from strategic consultancy through development, integration and infrastructure hosting and IT support. Our bespoke software solutions have helped clients achieve: ■ Reduced costs: unlike off-the-shelf software, bespoke applications can accomplish the full scope of a company’s technology requirements. ■ Competitive advantage: software specifically tailored for a specific business leads to better competitive positioning, enabling companies to rise above the crowd. ■ Increased flexibility: the ability to adapt a solution to meet the ever-changing business environment. Businesses across the UK rely on our IT Support services to: ■ Increase the reliability of their IT networks and solutions ■ Manage their IT networks and software ■ Reduce costs of IT infrastructure management and maintenance ■ Provide ”business continuity“ through comprehensive backup and recovery processes ■ Focus on critical business systems, identifying opportunities and risks.
    Looking for work in IT Outsourcing
    Located in Manchester, United Kingdom
    From €1,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    Data + Technology

    Pioneering problem solvers that transform your business through data and technology consultancy services | Welcome to CACI
    Looking for work in IT Outsourcing
    Located in Leeds, United Kingdom
    From €1,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    FortySeven is a European based IT consulting and full-cycle software development company.

    FortySeven is a high-end custom software development company that delivers IT solutions for enterprise & startup. Our developers will meet your business needs.
    Looking for work in IT Outsourcing
    Located in London, United Kingdom
    From €1,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    We build and train your tech team to deliver mobile and web apps 7x faster!

    Aurity is a Tech Accelerator based in London. Join our Acceleration Program and build your engineering team that delivers Web and Mobile apps 7x faster, using the latest cutting-edge technology to empower your digital transformation today.
    Looking for work in IT Outsourcing
    Located in London, United Kingdom
    From €1,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    Find right mix of technology & innovation, blending together to provide seamless productivity on Web & IT services.

    Trusted IT Service & Web Development for Web Design, Mobile App Development, IT Consulting & more services..
    Looking for work in IT Outsourcing
    Located in Birmingham, United Kingdom
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    Blockchain services for enterprise.

    Blockchain research and consulting services for enterprise.
    Looking for work in IT Outsourcing
    Located in London, United Kingdom
    Budget on request
    Works in multiple industries
    Speaks English
    1-10 members
  • (0 review)

    Your Trusted Technology Partner

    Kazma Technology is an IT based Company in Kolkata India that deals with software application development. One of the best software application development company in India
    Looking for work in IT Outsourcing
    Located in London, United Kingdom
    From €1,000 for IT Outsourcing
    Works in multiple industries
    Speaks English
    1-10 members
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Customer reviews about IT Outsourcing Companies in The United Kingdom

Business OwnerRetail | London, UK

Choosing an IT outsourcing firm in the United Kingdom was a pivotal decision for our business growth. The firm we selected has been exceptional in providing cutting-edge solutions and comprehensive support. Their proactive approach in managing our IT infrastructure has allowed us to focus more on core business goals.

CTOHealthcare | Manchester, UK

After partnering with this IT Outsourcing Company from the United Kingdom, we experienced a notable improvement in our IT operations. Their team of experts was not only highly knowledgeable but also incredibly responsive to our needs. This partnership has enhanced our technological capabilities and efficiency significantly.

IT ManagerFinance | Bristol, UK

This IT outsourcing company in the UK has distinctly stood out by continuously delivering reliable and scalable IT solutions tailored to our business needs. Their commitment to excellence and the ability to adapt quickly to changes makes them a valuable partner in our ongoing digital transformation.

Insights From Our Expert: IT Outsourcing in the United Kingdom

Celebrating Excellence in IT Outsourcing

The United Kingdom's IT outsourcing industry is renowned for its robust service spectrum and strategic innovations. Achievement in this sector is often recognized through various prestigious awards. Local firms have frequently been laurelled in national and international arenas, such as the National Outsourcing Association (NOA) Awards. These accolades are testament to the firms' commitment to excellence and innovation in delivering IT solutions.

Distinguished Client Partnerships

UK-based IT outsourcing firms have established strong relationships with an array of significant clients from diverse sectors including finance, healthcare, and retail. These collaborations often evolve into long-term partnerships, underlining the firms' ability to align with client objectives and deliver consistent, impactful results. Examples include managing comprehensive IT infrastructures for major financial institutions and implementing complex data solutions for large healthcare providers. Although specific names are withheld, these cases reflect the trusted and integral role these firms play in their clients' operational success.

Budgeting for IT Outsourcing

Budget is a critical factor when considering IT outsourcing. In the UK, costs can vary widely depending on the firm's size, reputation, and the complexity of services required. Companies should approach budgeting with a clear understanding of their needs. Based on our experience, here are a few pointers:

For Small Businesses: Opting for a mid-sized firm can be cost-effective and still offer customized attention. Initial outsourcing engagements might range from £5,000 to £20,000.

For Medium-sized Enterprises: These businesses might require more detailed services such as full-scale managed IT services, which could cost between £20,000 and £100,000 depending on the scope.

For Large Corporations: They often require comprehensive solutions which include the integration of the latest technologies across multiple platforms and countries. Projects here can start from £100,000 and escalate based on specific IT requirements.

Choosing the Right Partner

Selection should not only be based on cost but also on the quality of past work and the firm's ability to adapt to future technological trends. Evaluating the portfolio of handled projects can provide valuable insights into both the capability and compatibility of an IT outsourcing firm. In the UK, firms typically display a robust track record of diverse projects, showcasing their competence across multiple aspects of IT management and innovation.

The landscape of IT outsourcing in the United Kingdom is dynamic and offers substantial opportunities for businesses aiming to leverage technology for growth and efficiency. As an expert associated with Sortlist in the UK, I recommend businesses to thoroughly assess potential partners based on their track record, industry awards, and the strategic value they can bring to your organization.

Ray Baijings
Written by Ray Baijings Sortlist Expert in The United KingdomLast updated on the 18-03-2025

Latest Projects Submitted to IT Outsourcing Firms in The United Kingdom

Comprehensive IT Outsourcing for Financial Services FirmMajor player in financial sector>200,000€ | 10-2024A well-established company in the finance sector seeks a highly skilled IT outsourcing agency to handle all its technology operations. The agency must have proven expertise in financial services and the ability to secure complex IT infrastructures.
IT Outsourcing for Online Education PlatformOnline educational platform50,000-70,000€ | 10-2024A burgeoning online platform specializing in higher education seeks an IT outsourcing firm to manage its server and backend operations. The prospective agency should demonstrate a track record in educational technology solutions.
End-to-End IT Solutions for Manufacturing CompanyProminent manufacturing company150,000-200,000€ | 10-2024Emphasizing process optimization, a leading manufacturing company requires an IT firm capable of delivering end-to-end solutions, from automated systems to employee training in IT adoption.
Cloud Migration Services for E-commerce BusinessEmerging e-commerce business80,000-100,000€ | 10-2024This up-and-coming e-commerce entity is in need of an IT outsourcing firm to facilitate their cloud migration and subsequent maintenance to enhance their operational efficiency and scalability.
IT Support Outsourcing for Retail ChainNational retail chain100,000-150,000€ | 10-2024A national retail chain is looking for an IT agency to outsource their technical support operations across UK. The agency should have prior experience with retail clients and provide 24/7 support services.

Frequently Asked Questions.


When UK organisations contemplate outsourcing their IT operations, several critical factors must be carefully evaluated to ensure a successful partnership and optimal outcomes. Here are the key considerations:

  1. Cost-effectiveness: While cost savings are often a primary driver for IT outsourcing, UK organisations should conduct a thorough cost-benefit analysis. This should include not only immediate savings but also long-term financial implications, considering factors such as currency fluctuations (especially post-Brexit) and potential hidden costs.
  2. Expertise and specialisation: The UK has a mature IT market, but certain specialised skills may be in short supply. Assess whether potential IT outsourcing partners can provide access to niche expertise or cutting-edge technologies that are not readily available in-house or within the local talent pool.
  3. Data protection and security: With the UK's stringent data protection laws, including GDPR and the Data Protection Act 2018, organisations must ensure that any IT outsourcing firm complies with these regulations. Consider the provider's security measures, certifications (such as ISO 27001), and their ability to handle sensitive data securely.
  4. Business continuity and disaster recovery: Given the UK's increasing focus on resilience, especially in light of recent global events, evaluate the outsourcing provider's business continuity plans and their ability to maintain operations during unforeseen circumstances.
  5. Cultural fit and communication: While language barriers may be less of an issue for UK companies outsourcing to countries like India or the Philippines, cultural differences can still impact collaboration. Assess the cultural compatibility and communication protocols of potential outsourcing partners.
  6. Scalability and flexibility: The UK business environment is dynamic, particularly in sectors like fintech and e-commerce. Ensure that the IT outsourcing provider can scale services up or down quickly to meet changing business needs and market conditions.
  7. Regulatory compliance: Depending on the industry, UK organisations may need to adhere to specific regulations (e.g., FCA regulations for financial services). Verify that the outsourcing partner understands and can comply with relevant UK and EU regulatory requirements.
  8. Brexit implications: Consider how Brexit might affect your IT outsourcing strategy, particularly if you're considering providers in the EU. This includes data transfer agreements, contractual terms, and potential changes in trade regulations.
  9. Service Level Agreements (SLAs): Clearly defined SLAs are crucial for managing expectations and ensuring quality of service. UK organisations should negotiate comprehensive SLAs that align with their specific operational needs and industry standards.
  10. Vendor lock-in and exit strategy: Consider the long-term implications of the partnership, including the ease of transitioning to another provider or bringing services back in-house if needed. Ensure that contracts include clear terms for knowledge transfer and data migration.

According to a recent survey by Whitelane Research and PA Consulting, 65% of UK organisations plan to outsource at the same rate or more in the coming years, with cost reduction remaining the top driver (cited by 68% of respondents). However, access to resources/talent (57%) and business transformation (49%) are increasingly important factors, highlighting the need for a balanced approach when considering IT outsourcing.

By carefully evaluating these factors, UK organisations can make informed decisions about IT outsourcing that align with their strategic objectives, regulatory requirements, and operational needs in the rapidly evolving digital landscape.



The IT outsourcing landscape in the United Kingdom is experiencing a significant transformation due to several emerging technologies. These innovations are not only changing the way services are delivered but also creating new opportunities and challenges for both service providers and clients. Let's explore the key technologies and their impact on the UK IT outsourcing industry:

  1. Artificial Intelligence (AI) and Machine Learning (ML)

    AI and ML are perhaps the most disruptive technologies in IT outsourcing. They're enabling:

    • Automated customer support through chatbots and virtual assistants
    • Predictive maintenance and proactive problem-solving
    • Enhanced data analysis and decision-making processes

    According to a recent survey by Deloitte, 72% of UK businesses are now using AI in some capacity, with many integrating it into their outsourced IT services.

  2. Cloud Computing and Edge Computing

    The cloud continues to be a game-changer, with edge computing emerging as its powerful complement:

    • Increased flexibility and scalability for businesses
    • Improved data processing speeds and reduced latency
    • Enhanced security and compliance measures

    The UK cloud computing market is expected to reach £35 billion by 2023, according to TechUK, highlighting its growing importance in IT outsourcing.

  3. Internet of Things (IoT)

    IoT is creating new avenues for data collection and analysis:

    • Real-time monitoring and management of devices and systems
    • Improved efficiency in operations and resource management
    • New service offerings based on IoT data insights

    The UK government's investment of £30 million in IoT security demonstrates the technology's significance in the national digital strategy.

  4. Robotic Process Automation (RPA)

    RPA is streamlining repetitive tasks and processes:

    • Increased efficiency and reduced operational costs
    • Improved accuracy and consistency in task execution
    • Freeing up human resources for more complex, value-added activities

    A study by Grand View Research predicts the global RPA market to grow at a CAGR of 40.6% from 2020 to 2027, with the UK being a significant contributor to this growth.

  5. Blockchain

    While still in its early stages for IT outsourcing, blockchain is showing promise in:

    • Enhancing data security and transparency
    • Streamlining contract management and execution
    • Facilitating secure and efficient cross-border transactions

    The UK government's investment of £10 million in blockchain projects underscores its potential impact on various industries, including IT outsourcing.

These emerging technologies are reshaping the IT outsourcing industry in the UK in several ways:

  • Skill Set Evolution: There's an increasing demand for professionals skilled in AI, ML, cloud computing, and other emerging technologies. UK IT outsourcing firms are investing heavily in upskilling their workforce to meet this demand.
  • Service Offerings: Outsourcing providers are expanding their service portfolios to include AI-driven analytics, IoT management, and blockchain solutions, among others.
  • Pricing Models: The industry is shifting towards outcome-based and value-based pricing models, moving away from traditional time-and-material contracts.
  • Cybersecurity Focus: With the increased use of cloud and IoT, there's a heightened emphasis on robust cybersecurity measures in outsourcing agreements.
  • Automation-First Approach: Many routine IT tasks are being automated, changing the nature of outsourcing contracts and requiring a redefinition of roles and responsibilities.

In conclusion, emerging technologies are fundamentally altering the IT outsourcing landscape in the UK. They're enabling more efficient, cost-effective, and innovative service delivery while also presenting new challenges in terms of skills development, data security, and contract management. As these technologies continue to evolve, UK businesses and IT outsourcing providers must stay agile and adaptive to remain competitive in this rapidly changing environment.



Successful IT outsourcing partnerships in the United Kingdom strike a delicate balance between cost savings, quality, and innovation. This equilibrium is crucial for businesses to remain competitive in the rapidly evolving tech landscape. Here's how top IT outsourcing firms in the UK achieve this balance:

1. Strategic Alignment

Successful partnerships begin with a clear alignment of goals and expectations. UK businesses and their IT outsourcing partners work together to define objectives that go beyond mere cost reduction, focusing on value creation and innovation.

2. Value-Based Pricing Models

Instead of purely cost-driven contracts, many UK IT outsourcing companies are adopting value-based pricing models. These models tie compensation to outcomes, encouraging providers to deliver high-quality solutions and drive innovation.

3. Continuous Improvement and Innovation Clauses

Contracts often include provisions for continuous improvement and innovation. This ensures that the outsourcing partner is incentivized to propose and implement new technologies and processes throughout the engagement.

4. Collaborative Approach

Successful partnerships foster a collaborative environment where both parties share knowledge, resources, and risks. This approach helps in developing innovative solutions while maintaining cost-effectiveness.

5. Investment in Skills and Technologies

Leading IT outsourcing firms in the UK invest in upskilling their workforce and adopting cutting-edge technologies. This enables them to offer high-quality services and innovative solutions without significantly increasing costs.

6. Agile Methodologies

The adoption of agile methodologies allows for faster development cycles, regular feedback, and quick adjustments. This approach helps in maintaining quality and driving innovation while keeping costs under control.

7. Performance Metrics and SLAs

Well-defined key performance indicators (KPIs) and service level agreements (SLAs) help in maintaining a balance between cost, quality, and innovation. These metrics often include:

  • Cost savings achieved
  • Quality indicators (e.g., defect rates, customer satisfaction)
  • Innovation metrics (e.g., new ideas implemented, process improvements)

8. Transparent Communication

Regular, open communication between the UK business and the IT outsourcing partner ensures that all parties are aligned on priorities, challenges, and opportunities for improvement.

9. Leveraging Local Expertise

Successful IT outsourcing partnerships in the UK often involve a mix of onshore, nearshore, and offshore resources. This approach allows businesses to leverage cost-effective global talent while maintaining local expertise and cultural alignment.

10. Long-term Partnership Focus

Rather than viewing outsourcing as a short-term cost-cutting measure, successful partnerships focus on long-term value creation. This perspective encourages both parties to invest in the relationship and continuously seek ways to improve and innovate.

According to a recent survey by Whitelane Research, 65% of UK organisations plan to outsource at the same rate or more in the coming years, with cost reduction remaining the top driver (cited by 69% of respondents). However, access to resources/talent (57%) and business transformation (55%) are also key motivators, highlighting the importance of balancing cost with quality and innovation.

In conclusion, successful IT outsourcing partnerships in the UK achieve a balance between cost savings, quality, and innovation through strategic alignment, value-based models, continuous improvement, collaboration, and a focus on long-term value creation. By adopting these approaches, UK businesses can leverage IT outsourcing to not only reduce costs but also drive competitive advantage in an increasingly digital economy.