Top 12 IT Companies in the UK in 2025
Finding a reputable IT company based in the United Kingdom takes a lot of resources as you need to evaluate plenty of options. Among dozens of reviews, our analysis can help ease your research efforts to designate the best possible partner.
Having examined various IT companies providing tech solutions in the competitive British market, our experts offer you the opportunity to read the conclusions based on specific data. Formed on the described experience, reviews and confirmed expertise of the listed suppliers, you will receive a comprehensive guide that will help you navigate the variety of offers.
By choosing any IT services company from our summary, you will be able to gain access to industry leaders in the UK. To help you take your business to the top, we offer not only to find a reliable and qualified distributor capable of providing informational technology support at a high level but also to learn more about this area.
If you’re looking for a trusted partner to develop custom solutions tailored to your business, explore our custom software development services to learn how we help companies scale through innovative technology.
List of IT companies in the United Kingdom
Founded: 2017
Headquarters: London, United Kingdom
Limeup is one of the key players, providing unique digital masterpieces and implementation provisions for a long time. Our crew comprises 93% mid-level and senior developers, designers and other technical practitioners, and we create customized s for startups and enterprises.
Key services:
- Custom software development
- Mobile app development
- UI/UX design and many more.
Industries:
Why choose us:
At Limeup, as one of the top IT companies in the UK, we always keep a hand on the pulse for current trends and market demands to come up with the most up-to-date result. Once the stage of the launch is over, our specialists interact with the client for any maintenance and support systems to control proper operations.
Select case studies:
- For one of our stakeholders, Wahler, we developed and designed a line of action that facilitates the digital transformation of the HR sector. For this purpose, a seamless codebase was used, and information storage was digitized and optimized, which ensured quick access and effective management.
- Sometimes, an easy-to-use middleware module can create a real revolution, which is what happened with the product for HousePro. Optimization of internal processes by above 90% freed employees from manual labour, and scaling turned out to be simpler and more profitable than the corporation owners could have expected.
- Over the years, our expertise has translated into revolutionary architectures for many brands in our adjustable portfolio.
Founded: 2017
Headquarters: Berlin, Germany
Leverage the extensive proficiency of impltech to access scalable offerings tailored to facilitate purchaser growth without incurring extra costs. Partnering with this firm is highly advantageous for corporations aiming to remain competitive and increase their customer base in a demanding marketplace.
Key services:
Industries:
Why choose them:
Through a complete range of improvements, corporate accounts are empowered to receive bespoke, innovative applications or to migrate their current systems effectively. With a remarkable history of exceeding hundreds of tasks, this representative of IT service provider companies exhibits significant technological proficiency, is well-versed in contemporary trends, and has efficient methodologies for addressing them.
Select case studies:
- Assisting their client Crystal Immobilien expands its activities to a wider market, impltech consultants developed a website as a trading platform, helping to carry out real estate transactions and more fruitfully organise interaction with customers.
- Reliability in the healthcare sector is one of the top priorities, and IndexPharm turned to this facilitator to develop a platform to manage the storage and movement of drugs. A large data warehouse and innovative management tools helped to create a real masterpiece of digital trustability.
- A deep dive into their project history reveals collaborations with other global enterprises, reinforcing their technical excellence.
Systemagic Ltd
Founded: 1999
Headquarters: Bradford on Avon, England
Systemagic Ltd is a development house offering customer-focused protocols based on innovations and years of operating in this industry. This brand has received numerous positive testimonials, and its consumer satisfaction rate is 99.6%.
Being a giant in the tech field, Systemagic Ltd offers a wide range of leading mechanisms. Additionally, its workforce has robust proficiency in various technologies, providing clients custom products.
Key services: Business IT support, cyber security, cloud migration, equipment leasing.
Industries: Advertising & marketing, automotive, dental, consumer products & services.
Why choose them:
Enterprises contact this operator to receive high-quality application stack from an experienced squad with a proven track record. Their focus on a people-centric strategy allows them to offer all deals on a 30-day rolling contract, demonstrating an unwavering commitment to outstanding assistance and quality assurance.
Select case studies:
With a wealth of mastery, they have been the driving force behind digital transformations for brands like SaveLifes, Norland College, Halsall Construction and several others under NDA which you can see in project spotlights.
Corewide
Founded: 2015
Headquarters: London, England
Corewide was established as a quality assurance and automation schemes provider. Since then, it has grown into a fully fledged firm with four main creation options for ventures worldwide. The brand focuses on long-term relationships and tech staff’s skill buildout, so its division delivers high-quality products.
Stakeholders can apply for systems integration and unification, cloud hosting, and numerous custom procedures according to their requirements. Corewide developers have already created multi-products for small and mid-market industrial players in various niches.
Key services: IT monitoring solutions, infrastructure operations, audit and consulting.
Industries: Business services, fintech, information technology.
Why choose them:
At the heart of Corewide DevOps lies seamless communication, transcending the realms of coding and operational tasks; it represents a mindset and philosophy. This task force exemplifies that synergy by harmoniously integrating technical expertise, responsibility, intense brand acumen, and steadfast dependability.
Select case studies:
Reviewing their success stories, we notice repeat collaborations with industry giants, such as SaveLifes, Norland College, Halsall Construction, showcasing trust and reliability.
CodeFirst
Founded: 2012
Headquarters: Exeter, England
Naming itself a tech partner that builds program suites to keep partners up with the pace of their professional outfits, CodeFirst began its story when Graham created a bureau using his background in cooperation with brands like Pfizer, Sony Ericsson, ABB and so on.
The company prides itself on being a market leader that delivers in-demand strategies for world-class brands. Regarding bespoke software, requesters can receive enterprise web applications, cloud applications (SAAS), and multiplatform application development. Implementing Agile methodology CodeFirst ensures to deliver unique achievements.
Key services: Enterprise web apps, SAAS, modernisation & maintenance.
Industries: Education, hospitality & leisure, advertising & marketing, financial services.
Why choose them:
CodeFirst facilitates access to premier system logic construction professionals for organisations, delivering exceptional concepts that boost productivity and maximise cost-effectiveness. Their technicians consult and share best practices to advance every outcome significantly.
Select case studies:
The crew is well aware of how to increase profit, cost-efficiency for a master plan, and develop outstanding digital toolset. Their catalogue of works illustrates how they’ve tackled challenges for associations, delivering cutting-edge technology engines.
TIBUS
Founded: 1996
Headquarters: Belfast, Northern Ireland
TIBUS was founded as an IT outsourcing hub and has become a leader in the information technology area with 6 data centres and a robust squad of tech savants. Actively operating on the market, this crew has an established work process that allows them to deliver outstanding customer-oriented amenities.
All resources are innovative and aimed at creating powerful digital strategies for businesses to achieve their goals. Its network support extends reliable technologies, offering outstanding certified quotes and ensuring the smooth operation of the final product.
Key services: IT managed services, cybersecurity, web development.
Industries: Government, legal, medical, hospitality & leisure, manufacturing.
Why choose them:
TIBUS offers a broad suite of assistance, from hosting brochure-style websites to designing, constructing, and managing custom platforms distributed across various data centres, catering to mission-critical and brand-focused websites. Their managed hosting provision is available to both public and private sector entities.
Select case studies:
Their extensive portfolio includes cooperation with organisations in small and midmarket players and global brands, such as MTV, Ka-Boom, and Leicester City Council.
I-Next Ltd.
Founded: 1995
Headquarters: Mortimer Common, England
I-Next Ltd. is an IoT contractor that offers numerous amenities for clients in various niches. A highly seasoned vendor in this industry with a robust team, it offers valuable innovations produced by professionals.
Its remote collective can bring into being a computing environment and networking packages based on consumers’ unique requests. This facilitator delivers multiple packages related to application and DNS hosting, domain registration and more.
Key services: Application hosting, DNS hosting, integrated solutions, website platform.
Industries: Manufacturing, media, utilities, eCommerce, advertising & marketing.
Why choose them:
The esteemed I-ntarsia website management platform allows creative and marketing collaborative groups to efficiently design, implement, manage, and develop top-tier web systems for their audiences, without necessitating specialised skills in the foundational and infrastructure.
Select case studies:
The drawing portfolio is a testament to its versatility, having delivered high-performance innovations to names such as Edenred, Sky, DHL and others.
DEPT®
Founded: 2016
Headquarters: Manchester, England
Being represented as a full-service digital agency, DEPT® helps owners at every step of the product creation process, covering end-to-end module formation. There are three core values, and they are driving its crew toward users’ success — creativity, high-quality engineering, and skillset in digitising processes and models.
The firm conducts reports for the future prediction process — and they are quite good at it. They are aware of the latest trends and use pioneering tech skills to help brands stay ahead of the curve. DEPT® ideates future-ready toolkits based on pioneering creativity, growth, and pushing the boundaries of innovations together with customers.
Key services: Mobile application development, UX/UI design, AR/VR development.
Industries: Information technology, healthcare, retail, eCommerce.
Why choose them:
DEPT® is a full-service digital agency, a frontiersman in technology and marketing, with a background in launching end-to-end cyber competencies for enterprises like Google, KFC, Philips, Audi, Twitch, Patagonia, eBay and more.
Select case studies:
Numerous brands represent this firm’s captivating project gallery, and it also has 3,500+ tech aficionados worldwide who are ready to take on various partnerships.
Imobisoft
Founded: 2007
Headquarters: Coventry, England
Imobisoft has provided customised infrastructures such as mobile app development and other code packages to entrepreneurs and global brands around the world. With a high level of expertise and a strong division, this leading team can offer close control over all stages of development.
As a robust and efficient collaborator, Imobisoft helps corporate heads commence tailored systems and products based on principles of affiliation, innovation, and long-term relationships.
Key services: Bespoke business apps, mobile app development, cloud computing.
Industries: Medical, utilities, manufacturing, energy & natural resources.
Why choose them:
The key perks of partnering with Imobisoft are tailored AI workflows that align with commerce goals, acumen in multi-agent AI systems to solve complex problems, and scalable mechanisms for long-term benefits.
Select case studies:
The scale of their work is evident through impactful campaigns, described in the project highlights which contribute to innovation in multiple spheres.
One Beyond
Founded: 1994
Headquarters: Farnborough, England
This executor operates worldwide; its primary mission is to deliver, design, and develop custom intelligent software products.
As an all-inclusive firm, One Beyond offers end-to-end suites, from SaaS for established enterprises to user-facing systems and applications for startups and custom business applications for SMEs. This agency is one of the oldest and has been delivering firmware to optimise and scale processes for over twenty years.
Key services: Web application development, customer portal software, operational systems.
Industries: Fintech, healthcare, retail & eCommerce, non-profits, sport & leisure.
Why choose them:
On the corporate website, you can also find information about the work approach. The contractor delivers implementations quickly and on budget, being an official partner of AWS and Microsoft. It is an accredited vendor (ISO 9001/27001) proficient in the IT industry.
Select case studies:
Delving into the results delivered, you can uncover pioneering advancements synthesised for many patrons over the past decade.
ByteCorp Technologies
Founded: 2019
Headquarters: Cambridge, England
Promising its clients with AI-powered innovations, this firm is one of the most ingenious on our list. Their services include implementation, updating and support, which is noted by everyone who has ever contacted ByteCorp. According to its website, it is enough to contact this company to receive a full package of services related to artificial intelligence.
ByteCorp has successfully implemented deployments in multiple industries, which include facial recognition methods, automatic license plate recognition systems, crowd analytics solutions, and AI-driven dash cams designed for enhanced road safety.
Key services: AI consultancy, MVP design & development, web development.
Industries: Consumer products & services, government, financial services.
Why choose them:
In addition to delivering complete mobile and web applications, clients can increase their ROI and grow their revenue with experienced technical experts.
Select case studies:
With an extensive track record, they have assisted organisations of various scales in crafting advanced executable toolkits tailored to their needs.
Theodo
Founded: 2009
Headquarters: London, England
This collective of digital experts fits seamlessly into any size or format of institution, working directly alongside the patrons in existing structures, on the same board. They pride themselves on transparency and visibility, ensuring that the campaign is moving towards its goals daily.
The executor is turning requesters into leaders in their industries delivering unique skillset like generative AI and corporate venture. Carrying over 15 years of proficiency and being an expert in collaborative work approach, Theodo accelerates software launch time and ensures continuous improvement.
Key services: Custom software development, mobile app development, web development.
Industries: Medical, advertising & marketing, real estate, financial services.
Why choose them:
Initiatives at Theodo commence promptly and accelerate their growth at an impressive rate, thanks to a unique methodology that harmonises agile, lean, and DevOps practices. The hub boasts gurus in React, React Native, Django/Python, Node.js, and Symfony, as well as proficiency in numerous additional frameworks.
Select case studies:
Their impressive project repository highlights successful deployments for dozens of customers, emphasising a commitment to quality and efficiency.
How to choose the right British IT company?
Hiring software development companies in London becomes essential for client firms that want broad arrangements like mobile apps or complex CRM systems. Brands can empower their operations and reach more partners with a suitable partner. The point is to know what to look for, and here are the fundamental tips for you to follow when evaluating the listed consultants.
Before actually partnering with IT agencies, set a clear vision of the system’s purpose. After clarifying your corporate needs, identify what kind of configuration you are in want of: mobile tech suites, complex systems for enterprises, etc.
This option refers to the executor’s practice in your niche and its possibility of providing high-quality systems using innovative protocols like artificial intelligence and processing system development methodologies. It’s worth paying attention to when the supplier was established, whether it has a proven track record and whether solution architects are highly qualified.
Check out IT service companies’ project galleries to get a clear idea of what cases they worked on and in what industries. Within portfolios, you can also understand their expertise level, what challenges they faced, and how a unit dealt with them.
Internal teamwork is crucial to an effective partnership and helps highlight collaboration, idea sharing, etc. Learn about the communication style and their program suite formation life cycle. This way, you can assess how well the work style suits you and how deeply they will dive into your commercial processes to provide first-class offerings.
According to the latest research, all industries face cyberattacks; manufacturing, finance, insurance, professional, business, and consumer support account for the most significant number. Alternatively, you have the option to protect the mission details with NDA if you decide to hire software developers. Define or ask small IT companies in the UK for their security measures and if they can guarantee data privacy for your assignment.
Comparison of IT services companies
The revenue in the technology outsourcing market in the United Kingdom is expected to grow continuously and reach £114,20 billion by 2029. It is noteworthy that the revenue in the IT services market has been growing continuously in recent years, which indicates the prospects of this area and the desire of every significant player in the market to take advantage of these services.
That’s why choosing the right contractor is so important and sometimes it’s useful to compare candidates by key characteristics, which is what we suggest doing in the next section. After all, even if we claim that our list consists exclusively of worthy representatives of their industry, each, of course, has its own advantages and strengths.
The cost of services in IT companies from England usually varies depending on the level of the team’s qualifications and experience in the market, so using these figures as a guide, you can choose a provider according to your budget. However, do not forget that sometimes a low check may not be due to low quality of work, but to the fact that some employees work remotely in places with a low standard of living.
This parameter will largely determine whether the potential contractor can implement your goals within the specified time frame. If there is a shortage of personnel, you will either have to attract additional resources or postpone the planned launch. However, modest-sized partners are quite suitable for small projects.
The desire to get the result as quickly as possible is understandable. And if you don’t lose quality, it becomes a dream come true. And among the agencies we listed, some can deploy the process at lightning speed. If you are not limited in time, opt for an IT company in the UK who spend a little more time, but can save your budget.
The methodology and approaches to organizing work processes differ significantly in different company formats. For example, in some, brainstorming sessions can be held almost non-stop, constantly generating new ideas. In contrast, in others, all stages are maximally automated and each employee works on their part of the general idea. Choose the path closer to your values, so that cooperation is comfortable and the result exceeds all expectations.
Benefits of working with an IT solutions company in the UK
IT services have probably never been as important for purchasers as they are today, but owners, thinking about turning to a team that promises various bonuses, esteem what benefits they receive from this cooperation. We offer you specific points that will clarify the gains of partnership with IT experts.
Firstly, you save time and money. You will not have to take on the costs of maintaining your own squad of developers engaging top IT companies, which is especially useful if you just want to try out new technology and are not yet sure of its effectiveness in your line of action.
Secondly, you get many years of mastery from authorities. Believe us, they have already honed their skills on similar tasks and you will be able to avoid the most common mistakes and get around sharp corners.
Thirdly, you will discover the weak points of your tactic. Technical issues, process inefficiencies, vulnerability to threats, and unreliable data storage are just a few of the dangers that practitioners can point out to you.
Fourth, it makes it easier to plan for future scaling. The biggest IT companies in the UK strive to develop long-term relationships with their clients. To do this, they delve into the essence of each conception and try to understand its technological needs. You will be able to carry out strategic planning, knowing that the technical side of the process is reliably protected.
Fifth, your productivity will increase. Modern IT packages can simplify administrative processes and speed up or completely automate most work moments. Reduce unproductive costs and devote more energy to blooming!
As you can see, your course will only benefit from such association, and we will tell you how to build a path to an ideal partnership in our next sections.
5 questions to ask IT support companies before hiring
This essential guide will be invaluable during your initial consultation with your chosen candidate. During such meetings, you can assess more information about IT firms, their ethics and values, work processes, project management, etc. Here are five key questions you can ask to get to know the provider in more detail.
- How do you define the technology needs of the business?
This point determines the quality of the expertise carried out and whether the future product will be in demand by your target audience and market. How the collaborator collects and analyzes data about your style will determine how valuable and relevant the development will ultimately be.
- What industries do you have extensive background in?
The best approach is to partner with a vendor that can demonstrate their work for a similar undertaking and in the closest niche to yours. However, if you feel 100% compatible with another agency, ensure they have enough competence creating tech stack and team up for your campaign.
- How do you set up your implementation process?
Learn about each step of the solution creation, how IT services companies from the UK communicate updates, and what they do if any issues arise. For example, at Limeup, our experts suggest four stages: discovery stage, prototyping and delivery of product documentation, unification stage, distribution of the result, and post-project maintenance.
- Do you guarantee deployment success?
Given the cost of software engineering, you should ask the candidate about their exact plan to ensure your stack is in demand and thriving even after several years. You should receive specific points for successful product development and design evaluation. Also consider the possibility of reimbursing your expenses in case of unsatisfactory service delivery.
- Can you show the impact of your work on previous users?
One of the key indicators that an IT support company is a competent integrator is their ability to proudly demonstrate how working with them has brought success to the client. Most often, you can find completed project descriptions that detail the idea and what was achieved by the end of the partnership.
How much do UK IT companies charge?
When you hire dedicated developers for your piece of work, you can achieve more commercial goals and stay competitive. However, one of the main questions on the agenda is how much smart technologies cost depending on the task.
We found that many IT solution companies have an hourly pricing model from <£19 to £228. Additionally, some set a minimum project budget of ~£762. Let’s look at what can affect the final price of any piece of work.
- Scope of work. This concept includes the number of tasks, industry specifics, programming language, complexity of technology, etc. For example, a small house may want to develop a workflow to optimise some processes, while enterprises require complex systems.
- Skills required. Depending on the agency, their task force consists of backend builders, product managers, business or prominent data analysts and other technical specialists to offer full-cycle development.
- Timeframe. Urgent errands will cost more depending on the supplier’s conditions. Therefore, the provider must reschedule other tasks to prioritise developing technical implementations for your current requirements.
- Maintenance and ongoing assistance. If you require additional hand-holding supervision, for which a plethora of IT support companies based in the UK charge extra, you may need to consider and include them in your final budget. Ongoing maintenance will ensure that your technical schema runs smoothly and you will receive an immediate response if any errors occur.
It is important to understand that this serves as a general guideline regarding the average pricing for firmware construction. Contacting a potential partner and requesting a direct quote for the conception is always advisable to get an accurate estimate.
Looking for an IT services company in the United Kingdom?
Information technology favours can drastically change any given venture and put it on the right track to success. However, half the problem is finding a partner qualified enough to adequately assess the requirements and deliver a deployment that will fit a partner’s needs.
We reviewed some of the most prominent vendors currently dominating the sector in our in-depth look at the top UK IT companies. You also learned essential and crucial aspects to pay closer attention to when searching for the ideal provider.
Using our 10+ years of experience in the IT industry, we are familiar with developing and designing challenges clients may face when levelling up their strategies. Book a free consultation with Limeup experts and learn how to reach more customers and grow revenue with cutting-edge tech solutions.
