We share rankings of the top IT services companies in the United Kingdom that provide a broad range of services to support the IT needs of organizations of all types and sizes. Check out their agency profiles, client reviews, past projects, expertise, rates and more to find the most qualified company that can meet your unique requirements and budget.

Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.

United Kingdom × Legal × Sort by: Top Rated ×Clear Filters
  • Pixelette Technologies - Leading the way in AI & Blockchain

    Pixelette Technologies has built AI and blockchain solutions since 2018. It serves as Secretariat of the UK's APPG AI policy body, with 97% customer satisfaction. The agency suits enterprises needing ISO-certified AI or blockchain work from one of the best IT firms in the UK...

    Top Services:

    • Software Development
    • Web Development
    • Web Design
    • Blockchain
    • Mobile App Development
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    250 - 499
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    43 Projects Listed
  • AI-Native, Business-Ready Development Services. Engineered to Scale

    Mobcoder has provided custom software and AI development services since 2014, serving 150+ brands. For GovGig, it built a 10-agent AI system that cut submittal rejections by 80%. The IT agency in the UK suits IT buyers needing custom software with strong AI development capability...

    Top Services:

    • Mobile App Development
    • AI Development
    • Software Development
    • Web Development
    • VR/AR
    • Show more
    Location
    Cobham, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $55/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    14 Projects Listed
  • We design & develop web and mobile applications. Specializing in outsourcing and AI integration

    We are ready to build your project in the digital world. We will help you through the development process from initial analysis to successful launch. We design, build and launch digital products on mobile, web, and connected platforms...

    Top Services:

    • Software Development
    • AI Development
    • Staff Augmentation
    • Mobile App Development
    • CRM Consulting
    • Show more
    Location
    Birmingham, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $79/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    2 Projects Listed
  • Custom AI and automation for growing UK businesses

    York-based AI development consultancy for UK businesses of 10 to 200 people. We find the manual work between the systems you already use and build custom automations and AI agents that remove it. Fixed-price Automation Audit first; first system typically live within a month...

    Top Services:

    • AI Development
    • BPO
    • Software Development
    • Big Data Analytics
    • IT Services
    • Show more
    Location
    York, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $125/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    3 Projects Listed
  • thoughtbot is your expert partner for product design and development.

    20+ years over 1,000 clients! thoughtbot is a design and development company that helps clients lead the way through better products, faster teams, and stronger growth...

    Top Services:

    • Software Development
    • Web Development
    • Product Design
    • Web Design
    • Mobile App Development
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    50 - 99
    Average Hourly Rate
    $175/hr
    Minimal Budget
    $10,000 - $25,000
    Portfolios Count
    8 Projects Listed
  • TECHNOLOGY PARTNER FOR INNOVATIVE COMPANIES

    While modern technologies change our world, we help companies with innovative technologies. From E-Commerce to Fintech, from Machine Learning Development to Blockchain - we’ve got the necessary expertise to help you deliver your product on time and within the budget...

    Top Services:

    • Software Development
    • IT Services
    • IoT
    • eCommerce Development
    • Cybersecurity
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    250 - 499
    Average Hourly Rate
    $49/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    4 Projects Listed
  • .NET, AI and Web Software Development

    Leobit is one of the top IT companies in the UK that has delivered 100+ .NET projects and over 150 mobile apps in the past five years. It employs 170+ software engineers. The agency fits startups and enterprises needing dedicated development teams or modernization...

    Top Services:

    • Software Development
    • Web Development
    • Mobile App Development
    • UI/UX Design
    • IT Services
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $40/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    26 Projects Listed
  • Design, development, deployment, and beyond

    NCrypted Technologies is a software development company that specializes in HR tech. Its offers top-notch custom software solutions, both online and offline, to a wide range of businesses. This includes startups, SMBs, and large Fortune Global 1000 enterprises. Its reach spans across the globe in over 100...

    Top Services:

    • Software Development
    • Web Development
    • Mobile App Development
    • UI/UX Design
    • WordPress Website Design
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    5 Projects Listed
  • Let's do IT together

    Cubestech specializes in technology and IT related services such as product engineering, warranty management, building cloud, infrastructure, network, etc...

    Top Services:

    • Mobile App Development
    • Software Development
    • Web Design
    • Web Development
    • Digital Marketing
    • Show more
    Location
    Brentford, United Kingdom
    Number of Employees
    100 - 249
    Portfolios Count
    1 Project Listed
  • A Customer Focused, Full Service Marketing Agency

    Zephi is a customer focused marketing agency that helps businesses of every size grow by delivering creative and tailor-made marketing solutions. We develop future-proof strategies and solutions to grow with your business. Whatever your requirements, large or small, Zephi can offer you the perfect solution...

    Top Services:

    • SEO
    • Content Marketing
    • Digital Marketing
    • Social Media Marketing
    • Email Marketing
    • Show more
    Location
    Rugeley, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $48/hr
    Minimal Budget
    Under $1,000
  • You Outsource, We Manage & Deliver

    BetterWorld Technology empowers businesses with reliable IT Services, digital solutions and unwavering support. The team's industry-leading capabilities turn challenges into opportunities in cloud, security, and managed technology, always guided by trust, passion, and collaboration...

    Top Services:

    • Staff Augmentation
    • IT Services
    • Managed Services
    • Cybersecurity
    • HR Outsourcing
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $50/hr
  • Building A Better Working World

    EY offers Accounting, Business Consulting, and IT Services with a mission to build a better working world. It provides insights and quality services that instill trust in global capital markets and economies. EY focuses on developing exceptional leaders who deliver on their commitments to all stakeholders...

    Top Services:

    • Business Consulting
    • HR Outsourcing
    • Accounting
    • Cybersecurity
    • IT Services
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    1000 & Up
  • IT, Business, BPO, Audit, Tax and Advisory are just the beginning.

    Grant Thornton LLP (US) is an IT, project management, audit, tax, AgTech, and BPO company headquartered in Chicago, Illinois with over 50 U.S. offices and access to a global network or member firms in over 135 countries. We offer a broad range of services in strategy and consulting, operations, technology and...

    Top Services:

    • Accounting
    • Business Consulting
    • Market Research
    • HR Outsourcing
    • Software Development
    • Show more
    Location
    Manchester, United Kingdom
    Number of Employees
    1000 & Up
    Average Hourly Rate
    $35/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    2 Projects Listed
  • Comprehensive managed IT and cyber security services to help your business thrive.

    Texaport is an established and reputable managed service provider with a strong focus on security and customer service excellence...

    Top Services:

    • Managed Services
    • IT Services
    • Cybersecurity
    • IT Compliance Solution
    • Staff Augmentation
    • Show more
    Location
    Edinburgh, United Kingdom
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
  • Collaborating for Lasting Impact in Business Consulting

    Join us at Deloitte, where we believe that our collective influence is the cornerstone of our value. With a rich legacy spanning over 175 years and a global network encompassing 150 countries, we empower remarkable achievements, solve complex problems, and drive meaningful progress for clients, professionals...

    Top Services:

    • Business Consulting
    • Accounting
    • HR Outsourcing
    • Big Data Analytics
    • CRM Consulting
    • Show more
    Location
    Manchester, United Kingdom
    Number of Employees
    1000 & Up
    Portfolios Count
    6 Projects Listed
  • Together, we achieve more.

    Offering project management, business, and IT services. At KPMG LLP, their purpose is to turn knowledge into value for the benefit of their clients, people, and the capital markets...

    Top Services:

    • Business Consulting
    • Market Research
    • Accounting
    • HR Outsourcing
    • IT Services
    • Show more
    Location
    Manchester, United Kingdom
    Number of Employees
    1000 & Up
  • With offices in 440 cities, we operate in 150 countries across five continents, providing high quality audit, accounting, tax, and business advisory services...

    Top Services:

    • Market Research
    • BPO
    • Business Consulting
    • Accounting
    • IT Services
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    1000 & Up
  • Agile. Capable. Committed.

    sa.global, a trusted Microsoft partner, delivers cloud-based, vertical-focused solutions using Microsoft business applications & the Microsoft Business Cloud. Serving project-based verticals with 800,000+ users in 80 countries, sa.global has 30+ years of experience and multiple Microsoft accolades...

    Top Services:

    • ERP Consulting
    • CRM Consulting
    • Cloud Consulting
    • IT Services
    • Business Consulting
    • Show more
    Location
    Cardiff, United Kingdom
    Number of Employees
    500 - 999
    Minimal Budget
    $1,000 - $10,000
  • Developing Your Vision

    Foresight Mobile is a UK mobile app developer based in Manchester, with offices in Birmingham and London. We specialise in Flutter, React Native, and native iOS / Android, including on-device AI with Gemini Nano and Apple Intelligence. 50+ apps shipped since 2017...

    Top Services:

    • Software Development
    • Mobile App Development
    • Digital Services
    • IT Services
    • AI Development
    • Show more
    Location
    Manchester, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $110/hr
    Minimal Budget
    $25,000 - $50,000
    Portfolios Count
    3 Projects Listed
  • Now, for tomorrow.

    Offering AgTech, Business, and IT Services. Baker Tilly Canada Cooperative is a member of the global network of Baker Tilly International Limited, the members of which are separate and independent legal entities. Baker Tilly Canada refers to the association of member firms of Baker Tilly Canada Cooperative...

    Top Services:

    • HR Outsourcing
    • Accounting
    • Business Consulting
    • Market Research
    • Cybersecurity
    • Show more
    Location
    Manchester, United Kingdom
    Number of Employees
    1000 & Up
  • Transforming business through technology

    Modern Workplace and Cloud Technology Specialists. We are here to make IT simple for your business...

    Top Services:

    • IT Services
    • Cloud Consulting
    • Managed Services
    • IT Compliance Solution
    • Cybersecurity
    • Show more
    Location
    Manchester, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $99/hr
    Minimal Budget
    Under $1,000
  • Commitment Delivered

    We are an IT services company backed by result-oriented professionals that helps enterprises reimagine and realign their businesses to stay ahead in this digital age. As a global software services company, we understand our customers business aspirations and deliver value through custom software solutions and...

    Top Services:

    • Web Development
    • Web Design
    • UI/UX Design
    • WordPress Website Design
    • Software Testing
    • Show more
    Location
    Hertford, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $25/hr
    Minimal Budget
    $25,000 - $50,000
  • Delivering digital transformation - from consultancy and engineering, to AI, ML, cloud and UX

    Delivering digital transformation - from consultancy and engineering, to AI, machine learning, cloud and UX...

    Top Services:

    • Software Development
    • AI Development
    • Big Data Analytics
    • Cloud Consulting
    • Software Testing
    • Show more
    Location
    Leeds, United Kingdom
    Number of Employees
    100 - 249
    Average Hourly Rate
    $100/hr
    Portfolios Count
    2 Projects Listed
  • The Microsoft Cloud & Cyber Security Specialists

    Stripe OLT are a multi-award-winning Managed Service Provider, specializing in IT, cloud & cyber security. With office in London Bristol, and Manchester, their team support and secure critical infrastructure throughout the UK...

    Top Services:

    • IT Services
    • Managed Services
    • Cybersecurity
    • Cloud Consulting
    • IT Compliance Solution
    • Show more
    Location
    Bristol, United Kingdom
    Number of Employees
    50 - 99
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    1 Project Listed
  • Work with us to discover technical solutions & deliver on creative strategy

    As a digital agency we design, build and promote your website. Our services include bespoke Website Design & Development, Digital Marketing, Consultancy, Web Hosting, Support & Maintenance...

    Top Services:

    • Web Development
    • WordPress Website Design
    • Web Design
    • eCommerce Development
    • IT Services
    • Show more
    Location
    Birmingham, United Kingdom
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    4 Projects Listed
  • Promising Quality IT Solutions for Businesses

    Based in California, WATI is an esteemed technology and ECM consulting solutions provider with a robust footprint across the USA and India...

    Top Services:

    • ECM Consulting
    • IT Services
    • Cybersecurity
    • Staff Augmentation
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Portfolios Count
    3 Projects Listed
  • A small step for you, and a giant leap for your IT.

    Partner with LogicLeap IT Solutions today and embark on a transformative journey towards an empowered, efficient, and future-ready business. Let us be your guide as you navigate the dynamic landscape of IT to achieve your business objectives...

    Top Services:

    • Digital Services
    • Web Design
    • Digital Marketing
    • IT Services
    • SEO
    • Show more
    Location
    Oxford, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $85/hr
    Minimal Budget
    $1,000 - $10,000
  • Business automation and AI for UK construction and law firms

    Severus is a UK business automation and operations partner for construction companies and law firms. We connect the systems you already use and add AI where it saves real hours. Offices in London and Tallinn...

    Top Services:

    • Business Consulting
    • IT Services
    • AI Development
    • Software Development
    • ERP Consulting
    • Show more
    Location
    London, United Kingdom
    Number of Employees
    Under 49
    Average Hourly Rate
    $85/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    7 Projects Listed

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Frequently Asked Questions

What are the core specializations of IT services companies in the United Kingdom?

IT services companies in the United Kingdom offer a full suite of digital transformation and operational support services, focused on accelerating business growth, ensuring regulatory compliance, and strengthening security. In addition to core functions like managed IT, cloud hosting, and help desk support, key specializations include: 

  • IT consulting 
  • Digital strategy 
  • Managed security services (MSS) 
  • Cloud services 
  • Network infrastructure and unified communications 
  • Data backup and recovery 
  • System modernization 

What certifications should an IT support company have?

For IT support companies, certifications signal adherence to global and local best practices. ISO/IEC 27001 is essential, crucial for complying with the UK's high data protection standards, including GDPR. Staff-level certifications like ITIL Foundation are also important, as well as Cyber Essentials for cybersecurity.  

For assessing technical proficiency, look for vendor accreditations like Microsoft Gold Partner or high-level certifications like CISSP (Certified Information Systems Security Professional) for senior staff. 

What information do I need to provide to an IT services company?

To initiate a successful partnership with an IT services company, you must be prepared to share detailed information across three critical tiers. Initially, outline your business context: including key growth objectives, the total count of users and endpoints, budget constraints, and a clear list of current IT challenges or 'pain points.' 

Secondly, you’ll need to supply technical documentation, i.e., a complete inventory of hardware, existing licensed software and their keys, a network topology map, and details on any critical legacy systems. Lastly, you'll need to provide a statement of all mandatory compliance requirements and the necessary access credentials for core systems, such as firewalls, cloud tenants, and primary servers. 

What factors affect IT services agency pricing?

Pricing for IT services in the UK is heavily influenced by the scope and inherent complexity of the required support, which determines the necessary staffing and skillset. Factors that directly impact costs include: the size and scale of the organization (number of users and managed devices), the stringency of the Service Level Agreement (SLA) required, especially for 24/7 or mission-critical support, and the technical maturity of the existing IT estate. 

Additionally, stringent regulatory compliance will increase pricing, as well as the agency's location within the UK (London-based services typically cost more due to higher labor rates). 

What questions should I ask United Kingdom IT support company before hiring?

Before committing to a United Kingdom IT support company, pose these questions to thoroughly assess its suitability, expertise, and operational alignment with your business: 

  1. What are your guaranteed response and resolution times as per your Service Level Agreement (SLA)? 
  2. How do you ensure full compliance with GDPR and other UK-specific data protection legislation? 
  3. Do you operate a 24/7/365 UK-based service desk or is support outsourced after hours? 
  4. What is your defined process for handling a high-priority cyber-security incident or major outage? 
  5. Can you provide an example of how you've helped a client leverage cloud technology for a business outcome? 
  6. How frequently do you conduct proactive security testing, patching, and hardware life-cycle reviews?Â