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.
FinTech Unleashed: React Native Excellence by Andersen
Andersen has provided IT and software development services for 19 years. It has completed 2,000+ projects for clients like Samsung and TUI, with 98% retention. The agency is best for enterprises needing staff augmentation or legacy modernization...
Top Services:
- Software Development
- Web Development
- UI/UX Design
- Mobile App Development
- Product Design
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 18 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAndersen Services
Data sourced from the agency's DesignRush profileGlobePayroll Samsung Marvel Media Markt IHS Markit
Andersen Reviews & Testimonials
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HTML5 Review from Kristian Karimo
Andersen offers skilled project managers who adhere to the approved development plan, ensuring the implementation of all functionalities on time. It generates clear reports, exhibits excellent communication, and is English fluent. The client communicates with Andersen via Skype and Slack and uses Jira as a tracking system. Andersen organizes the processes well and performs correctly. Its team is always punctual and dedicated to the project. Andersen helped in improving the client's product.
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Software Development Review from Markus Bohl
Andersen has a confident project manager who came through professionally and neatly structured the process. Anderson provided the client with individual resources that are a part of a larger, mostly remote team. With these resources, the client builds the initial product and brings it to a sales-ready stage so that it can be used with clients. Andersen helped with UI/UX design, software development, and Python backend development services (Verified via email)
Software Development Review from Adalin Cheng
One of the most impressive things about Andersen Lab is that the entire team [is fully dedicated] to [the] work they are doing. In the Agile process, where decisions are changed rapidly [...], [the] Andersen Lab team used to react patiently to every single change. Although the teams task is mostly implementation of our requirements, they often [go] the extra mile and [are involved] in the ideation process as well. (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsWe integrate, innovate, and elevate enterprise systems.
Intellectsoft has provided custom software development since 2007. It has built products for 35 Fortune 500 clients, including Disney, Audi, and Eurostar. The IT agency in the UK suits enterprises needing custom software or dedicated development teams...
Top Services:
- Software Development
- Mobile App Development
- Wearables
- Software Testing
- Blockchain
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $80/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 12 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsIntellectsoft Services
Data sourced from the agency's DesignRush profileHarley-Davidson the London Stock Exchange Ernst & Young Qualcomm Bombardier
Intellectsoft Reviews & Testimonials
Software Development Review from Harshal Chhajed
They have highly skilled support staff for faster resolution which leads to customer satisfaction. Also, it has many features including IoT and blockchain apart from regular software development. If there are any changes in the scope of the project at a later stage, it can prove quite costly and also difficult to accommodate last-minute client-side scripting changes. They are versatile, cost-effective, and offer quick customer support. They offer a very customized software development tool where business needs can be addressed. It is very cost-optimized and hence can help generate good returns for business investment.
Software Development Review from Vitaly Dyachenko
Intellectsoft provided a great partnership by delivering quality services and working fast. They helped us to accomplish all the clients' projects on time. The team communicated transparently and showed [] great dedication. They were an ideal partner! (Verified via email)
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsSoftware development with predictable timelines & costs
Clockwise Software is a digital product development company with 10+ years in the market and 200+ delivered solutions across SaaS, ERP, Logistics, MarTech, and HealthTech. Senior engineers, product thinking, and reliable delivery with under 10% variance on CPI/SPI across projects...
Top Services:
- Software Development
- Mobile App Development
- Staff Augmentation
- IT Services
- AI Development
- Show more
- Location
- Edinburgh, United Kingdom
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 24 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsClockwise Software Services
Data sourced from the agency's DesignRush profileJohnson & Johnson Eventbrite SegmentAI Knocking KP Technology GmbH
Clockwise Software Reviews & Testimonials
Elliot Jacobs's Review Sourced from Google
We run a SaaS platform for PR reporting. It’s our first time working with an external development team after years of in-house. We made the shift to get more flexibility and to have dedicated capacity for building out a suite of new features on top of our product.The work is R&D by nature, so specs change, and priorities shift. Clockwise Software has always been flexible about that and scaled up when we needed more people involved. What else stood out is the team's experience. Our codebase spans multiple services with a fair amount of legacy code. They have people who've clearly worked across different codebases before, and it showed in how quickly they got productive.Our engagement is ongoing. We launched the new features, ran a beta, and opened it up to the full market. ARPC has increased since launch, a clear sign to us that the work landed well with customers.
Lukas Nchimbi's Review Sourced from Google
Hired them to build an AI feature on top of our internal system, basically an assistant so our team could ask questions and get info from our data instead of digging through it manually. Took about 8 weeks. Works exactly how we needed it to. Their team was upfront about the limitations early, which I actually respected.
Arav kumar's Review Sourced from Google
Great software company with a professional and knowledgeable team. Their solutions are reliable, user friendly, and delivered with excellent communication and support.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsSmartym Pro has provided custom software development since 2012. It has completed 80+ projects, including a sales enforcement tool for Heineken sellers. The agency suits startups and enterprises needing mobile, web, or blockchain development...
Top Services:
- Software Development
- Mobile App Development
- Staff Augmentation
- Blockchain
- IT Services
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $45/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 9 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSmartym Pro Services
Data sourced from the agency's DesignRush profileCoach-Apps Heineken Automagic Pepsico Sony (retailers)
Smartym Pro Reviews & Testimonials
Software Development Review from Shaun Bennie
Co-funding’s collaboration with Smartym Pro began from discovery stage and design services for our online investor automation platform. In these initial stages Smartym demonstrated great skill and aptitude which convinced us to appoint them for the full MVP development part of the project. Smartym Pro’s team offered their vision to improve the quality of the delivered product. They met all deadlines and were keen to give great advice. It was a pleasure to work with Smartym Pro’s team.
Outsourcing Review from Aleksander Stepanowicz
The Smartym Pro’s team has solid experience in development of web/mobile apps, blockchain platforms and smart contracts. We collaborate with Smartym Pro since June 2018 on 4 projects and are satisfied so far. The team is aware of cutting edge trends in emerging technologies and demonstrate willingness to contribute to the projects in an informal and creative way. And what is very important for us they tend to meet deadlines.
Reviews verified by DesignRush and sourced from the agency's profile View All ReviewsGlobally Recognized Digital and Engineering Solutions Partner.
Named Best AI Company and Software Development Company by The Netty Awards, Opinov8 is a global technology firm with development hubs across the United States, Europe, and Egypt...
Top Services:
- Software Development
- Mobile App Development
- UI/UX Design
- Web Development
- Big Data Analytics
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $42/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsOpinov8 Services
Data sourced from the agency's DesignRush profileRenault WELD Health Hastee Instamotion HR DataHub Beacon United Language Group German Society for International Cooperation
Building Complex Data-Centric Solutions
Xenoss is an NYC-based MarTech/AdTech software development company...
Top Services:
- Software Development
- AI Development
- Cybersecurity
- IT Services
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $55/hr
- Minimal Budget
- $50,000 & Up
- Portfolios Count
- 3 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsXenoss Services
Data sourced from the agency's DesignRush profileHavas Intercom Telefonica Sizmek Dentsu Video Intelligence Kochava Smaato PowerLinks
A leading UK supplier of complex IoT solutions
IoT Technologies Ltd designs and delivers real-time industrial IoT systems for critical infrastructure, remote assets and hard-to-reach environments. We combine sensors, gateways, secure cloud platforms and intelligent dashboards to help organisations monitor equipment, detect risks early, reduce downtime and...
Top Services:
- Big Data Analytics
- IT Services
- IT Compliance Solution
- Managed Services
- Engineering
- Show more
- Location
- Norwich, United Kingdom
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $150/hr
- Minimal Budget
- $50,000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsIoT Technologies Ltd Services
Data sourced from the agency's DesignRush profileMoD GoV FT
See Beyond, Rise Above.
Persistent Systems, a renowned global leader in software product development and technology services. Delve into our innovative offerings to stay ahead in the ever-evolving landscape of technology...
Top Services:
- AI Development
- Software Development
- Web Development
- Mobile App Development
- Blockchain
- Show more
- Location
- London, United Kingdom
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $100/hr
- Minimal Budget
- $50,000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsPersistent Services
Data sourced from the agency's DesignRush profileGB Bank Qapita Vermont
Persistent Reviews & Testimonials
Sundeep Patel's Review Sourced from Google
Persistent Systems Ltd is a global software company that provides innovative software solutions to clients worldwide. The Bhageerath office is one of the company's offices located in Pune, India. As an employee of Persistent Systems Ltd, I have had the opportunity to work at this office and experience its work culture, facilities, and environment.Work Culture:The work culture at Persistent Systems Ltd Bhageerath office is excellent. The company values its employees and provides a supportive environment that encourages creativity, innovation, and collaboration. The office has an open-door policy, and employees are encouraged to share their ideas and opinions freely. The management is approachable and provides ample opportunities for career growth and development.Facilities:The Bhageerath office has excellent facilities that cater to the needs of its employees. The office is spacious and well-equipped with state-of-the-art technology and infrastructure. The office has a modern cafeteria that serves a variety of delicious food and beverages. The office also has a gymnasium, a recreation room, and a meditation center, which are available to employees to use during their free time.Environment:The environment at Persistent Systems Ltd Bhageerath office is conducive to work. The office is located in a peaceful and quiet area, away from the hustle and bustle of the city. The office is surrounded by lush greenery and has a beautiful view of the nearby hills. The office has an eco-friendly policy and encourages its employees to adopt sustainable practices.Employee Experience:As an employee of Persistent Systems Ltd Bhageerath office, my experience has been excellent. The company provides a supportive and inclusive work environment that values its employees. The facilities and amenities provided by the company are top-notch, which makes it a great place to work. The company also provides ample opportunities for career growth and development.Conclusion:In conclusion, Persistent Systems Ltd Bhageerath office is a great place to work. The work culture is excellent, and the company values its employees. The facilities and amenities provided by the company are top-notch, which makes it a comfortable and enjoyable place to work. The environment is conducive to work, which makes it an ideal location for an office. Overall, it is a highly recommended place to work.
Harshad N's Review Sourced from Google
Well known IT company in Pune. Founded and managed by Dr Deshpande.Persistent family known for their social service along with the core business in IT sector..
Praveen Soni's Review Sourced from Google
One of the best IT company in pune. Location and offices are best. Personally I likes the name of buildings.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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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:Â
- IT consultingÂ
- Digital strategyÂ
- Managed security services (MSS)Â
- Cloud servicesÂ
- Network infrastructure and unified communicationsÂ
- Data backup and recoveryÂ
- System modernizationÂ
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. Â
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.Â
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.'Â
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.Â
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.Â
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).Â
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:Â
- What are your guaranteed response and resolution times as per your Service Level Agreement (SLA)?Â
- How do you ensure full compliance with GDPR and other UK-specific data protection legislation?Â
- Do you operate a 24/7/365 UK-based service desk or is support outsourced after hours?Â
- What is your defined process for handling a high-priority cyber-security incident or major outage?Â
- Can you provide an example of how you've helped a client leverage cloud technology for a business outcome?Â
- How frequently do you conduct proactive security testing, patching, and hardware life-cycle reviews?Â
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