Top 100 IT Services Companies in London

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Top 100 IT Services Companies in London

February 2023

Looking for a top IT services company in London?

IT Services are the means to ensure all your hardware continues to function. There are essential to any business and we've compiled a list of the best teams in London for you to review. 

Jump to Most Reviewed Companies

List of the Best London IT Companies

  • 1
    • Scheduling

      4.9
    • Quality

      5.0
    • Cost

      4.5
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 1,000 - 9,999 employees
    • London , United Kingdom

    DataArt is a software engineering firm in München, Germany; Zug, Switzerland; London, England; and New York. Founded in 1997, they have about 3,000 employees that serve mainly midmarket and small-business clients in the financial, healthcare, and IT sectors. Services include custom software development, enterprise app modernization, and UI/UX design.

    Clients

    • The Carlyle Group
    • Nasdaq
    • Apax Partners
    • Monex

    Industries

    Notable Project

    DataArt works alongside an automotive company to develop a tabled-based mobile application. The team is building the frontend and the web server that services the app, among other tasks.

    "DataArt is not afraid to engage in challenging or niche projects."

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  • 2
    • $25,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Headquartered in New York, iTechArt is a custom software development company with additional offices in Marietta, Ga. and Iselin, N.J. Since 2002, iTechArt has helped startups and fast-growing tech companies fill in their talent gap and create robust web and mobile solutions that users love. To date, iTechArt’s talent pool includes 3500+ engineers with experience in all of the latest technologies.

    Clients

    • ClassPass
    • ZEFR
    • Gain Capital (forex.com)
    • Merkle

    Industries

    Notable Project

    iTechArt assisted with the development of a flagship mobile app (iOS and Android), allocating a specialized resource for each platform version. The team now provides QA testing and updates as needed. 

    "iTechArt can scale with us as we grow, and they can do it fast."

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  • 3
    • $5,000+
    • 50 - 249 employees
    • London, United Kingdom

    Transputec, a midsize cybersecurity company, is located in Wembley, United Kingdom. They focus on cybersecurity, IT managed services, and custom software development and were launched in 1984.

    Industries

    Notable Project

    A media and events company was looking to revamp their IT infrastructure, so they engaged with Transputec Ltd to provide them with a full audit of their entire system.

    "They came up with good solutions at a reasonable cost and delivered their tasks with minimal problems."

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  • 4
    • Scheduling

      4.3
    • Quality

      4.7
    • Cost

      4.3
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $100,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    CI&T (formerly CINQ Technologies) is software development company based in Curitiba, Brazil with additional offices in Brazil and Miami. Founded in 1992, the team of 271 specializes in custom software development, IT staff augmentation, and UX/UI design. They work primarily with enterprise clients in the transportation and financial services industries.

    Clients

    • SITA
    • Lenovo
    • iHeart Media
    • Panasonic

    Industries

    Notable Project

    CI&T (formerly CINQ Technologies) provided development support, augmenting the team of a software development organization. They migrated an out-of-date Java Applet-based application to a modern web-based platform.

    “I will always reach out to CI&T (formerly CINQ Technologies) as my first choice for development.”

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  • 5
    • Scheduling

      4.8
    • Quality

      4.9
    • Cost

      4.7
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Based in Vienna, VA, 10Pearls designs and maintains apps for various companies. The company and its nearly 350 employees have experience in cybersecurity, product development, and UX/UI design.

    Clients

    • HughesNet
    • Johnson & Johnson
    • PayPal
    • CocaCola

    Industries

    Notable Project

    Brought on to assist the existing development team, 10Pearls provides medical software, website, and administrative back-end development of a large platform.

    “They get the job done, work hard, and are very responsive.”

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  • 6
    • $25,000+
    • 250 - 999 employees
    • London, United Kingdom

    Objectivity Ltd. is an IT company headquartered in Coventry, United Kingdom, that provides custom software and web development, as well as web design functions. Founded in 1991, the company has over 600 employees. The businesses they serve represent multiple industries including the business services, financial services, and real estate industries.
     

    Clients

    • Morrisons
    • Primark
    • Edrington
    • Knight Frank

    Industries

    Notable Project

    Objectivity Ltd.’s team helps to develop software. Initially, using HTML 5, they developed a new module with an intuitive UI that monitors and reports on performance and eases resource scheduling.

    “They have a genuine desire to do a good job for us.”

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  • 7
    • $25,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Andersen is an international custom software development company that, among other things, specializes in healthcare software development. Since its founding in 2007, the company has opened more than ten development centers and about ten sales offices worldwide. More than 2700 highly qualified specialists work on developing, customizing corporate IT solutions, web applications, and mobile applications. Andersen has completed over 950 projects and received hundreds of positive reviews from clients worldwide. Today the company is working on over 250 projects. Our technology stack includes .NET, C#, Java, Python, PHP, Node.js, TypeScript, Golang, C++, JavaScript, Angular, React.js, Vue.js, HTML, CSS, Java (Android), Swift / Objective C (iOS), React Native, and more. We also offer manual and automated testing, business and data analysis, UI/UX design, DevOps services, IT security management, and L1, L2, L3 support.

    Clients

    • Samsung
    • Johnson & Johnson
    • GlobePayroll
    • Siemens

    Industries

    Notable Project

    Andersen augments a product developer's internal team during long-term, intensive projects. They provide full stack development and implementation for websites and cloud-based solutions.

    "They really try to find appropriate solutions for all of our requests."

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  • 8
    • Scheduling

      4.5
    • Quality

      4.8
    • Cost

      4.2
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • Undisclosed
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Kin + Carta is a tech-centered management consultancy based in Chicago. Founded in 1964, they also have offices in London, San Francisco, New York, and Singapore. Their team of approximately 3,000 focuses primarily on enterprise clients in the financial services and health care fields. Services include mobile app development, cloud consulting, and more.

    Clients

    • AstraZeneca
    • Expedia
    • Santander
    • Barclays

    Industries

    Notable Project

    Kin + Carta provides development platform services for a North American food distribution company. Their work includes creating and maintaining a modern e-commerce interface.

    “Their ability to deliver is really clear, and their processes are easy to learn from.”

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  • 9
    • $10,000+
    • 2 - 9 employees
    • London, United Kingdom

    Founded in 2017, Lambert Labs is a software development agency that specializes in Python. Their team of fewer than 10 employees is based in London. They also provide web development services and application testing. 

    Clients

    • Accenture
    • Aerial Empire
    • Bongo's Bingo
    • Boost

    Industries

    Notable Project

    An online learning program hired Lambert Labs as technical experts for some of their curricula. The team provided deliverables in the form of code base, requirement documentation, exercise, and more.

    "Lambert Labs was always going the extra mile to ensure the experience for our end users was going to be optimal."

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  • 10
    • $25,000+
    • 10 - 49 employees
    • London, United Kingdom

    Silicon Reef are a SharePoint development & Microsoft 365 solutions agency. Founded in 2016, they are located in the United Kingdom with offices in London, Chester, and Bournemouth. They offer a range of services from consultancy, campaign-based web or app development, and front-end creative. They also offer full-blown migration, strategic road-mapping, and full-service development partnerships and partner with medium-sized to enterprise clients. 

    Clients

    • Unilever
    • Asahi
    • Anglo American
    • SEGA

    Notable Project

    Silicon Reef created two SharePoint solutions for a resources and agriculture NGO spread between the United Kingdom and Africa. They made it so all teams can access tools and final documentation.

    “Their best selling point is their willingness and desire to understand our operating model.”

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  • 11
    • $25,000+
    • 50 - 249 employees
    • Croydon, United Kingdom

    Founded in 2005 and headquartered in Croydon, UK, GoodCore Software specializes in bespoke software development. WIth a team of about 50 employees, the company offers web and mobile app development to startups and established businesses alike. Engagement options include fixed- cost and dedicated development teams.

    Clients

    • Printed Music Licensing
    • Weight Loss Resources
    • GC Business Finance
    • XTracked Deliveries

    Industries

    Notable Project

    GoodCore developed a SaaS application for managing briefing programs and events for Fortune 100 companies. The team coded in React and Laravel for creating a web-based application. The application helped automate and streamline the management of corporate events, briefing programs and meetings.

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  • 12
    • $25,000+
    • 50 - 249 employees
    • London, United Kingdom

    Altkom Software & Consulting, founded in 1998, is a software development company headquartered in Warsaw, Poland, with an additional office in Krakow, Poland. They specialize in custom software development, web development, and application management & support. The company has 130+ employees who work with enterprise, mid-market, and small businesses. The businesses they serve are mostly in the financial services industry. 
     

    Clients

    • BNP Paribas
    • AXA Insurance
    • Santander
    • Danone

    Industries

    Notable Project

    Altkom Software helped an AI company with their due diligence. The team audited the company's product delivery process, development process, system architecture, security, control system, and testing approach.

    "I appreciated the communication skills and the ability to provide feedback."

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  • 13
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.8
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom

    Kalinax is a big data agency based in Lisbon, Portugal with more than two experts. Founded in 2016, they specialize in big data and business consulting services for clients ranging from startups to enterprises in the industries of telecommunications, transportation, and more.

    Clients

    • Right People Group
    • Oxford University Press
    • Crown Worldwide Group

    Industries

    Notable Project

    Kalinax helped a digital specialist agency through QA and software testing. The third party client needed their services to manage their workload much better.

    "We were impressed on how professional they were, even when the requests were for highly specialized resources."

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  • 14
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.5
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom

    Smartdesc is a London-based IT company with a team of fewer than 50 people. Founded in 2011, they offer IT strategy consulting, cloud consulting, and cybersecurity solutions for small and mid-market businesses, primarily non-profit organizations.

    Clients

    • Mind
    • Terrence Higgins Trust
    • NCVO
    • ACEVO

    Industries

    Notable Project

    Smartdesc helped a nonprofit membership organization transition from an outdated technology environment to Office 365 in order to facilitate remote work. They remain on board to provide ongoing support.

    "The most noteworthy thing about working with them is their ability to fix problems."

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  • 15
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    impakt Advisors is a big data company based in New York. Founded in 2016, this company has 10 employees. Services provided by impakt Advisors include IT strategy consulting, big data consulting, and cloud consulting for businesses of all sizes.

    Clients

    • TD Ameritrade
    • Bridgestone Firestone
    • Dell EMC
    • Public Goods and Indigo AG.

    Industries

    Notable Project

    impakt Advisors provides data analysis to understand the user base of an inventory management application. The team examines data collected by numerous sources and produces presentations of their findings.

    "The team’s incredibly gifted in getting an answer from data."

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  • 16
    • Scheduling

      4.5
    • Quality

      4.6
    • Cost

      4.4
    • NPS

      4.6
    Read Full Reviews on Clutch Visit Site
    • $50,000+
    • 50 - 249 employees
    • Sutton, United Kingdom

    Geeks is a software development company in London. Founded in 2007, Geeks' team of 85 specializes in custom software development, web development, and mobile app development, primarily for midmarket clients in media and govenment.

    Clients

    • BBC
    • EasyJet
    • Euromoney
    • Mitie

    Industries

    Notable Project

    Geeks managed all aspects of development in creating a timeline visualization engine. The system extracts and imports historical data from a variety of sources using JavaScript.

    “While the others seemed wary of dealing with large databases and files, they were very enthusiastic about our project.”

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  • 17
    • Scheduling

      4.8
    • Quality

      4.8
    • Cost

      4.2
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 50 - 249 employees
    • London, United Kingdom

    Global Talent is an IT firm based in London with more than 50 experts. Since their founding in 2017, they have provided IT staff augmentation, custom software development, and IT strategy consulting solutions for clients ranging from small firms to large companies.

    Clients

    • Vodori
    • Holovis
    • SmartXpo
    • HeyCharge

    Industries

    Notable Project

    Global Talent provides staff augmentation for three software products of an experiential marketing agency. The team produces work in a Scrum environment using mostly C# and Unity. 

    "The team truly believes that no challenge is too big."

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  • 18
    • Scheduling

      4.3
    • Quality

      4.7
    • Cost

      4.2
    • NPS

      4.9
    Read Full Reviews on Clutch Visit Site
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    Softwire is a digital design, engineering and support agency, with offices in London, Cambridge and Manchester. Employing over 200 engineers we create bespoke digital software, mobile apps, and offer strategic IT consulting for some of the UK’s leading brands including the BBC, David Lloyd Clubs, Channel 5 and many large Government Departments.

    Clients

    • The BBC
    • David Lloyd Clubs
    • RSA
    • The Cabinet Office

    Industries

    Notable Project

    Softwire served as a research partner for one side of a collaboration. They aggregated AI data sets to support third-party complex machine learning. The team also created posters for an industry conference.

    "We got what we wanted out of the engagement and stayed in budget."

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  • 19
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    Influential Software is a software development firm in London, United Kingdom; Maidstone, United Kingdom and Glasgow, United Kingdom. The firm focuses on custom software development, web development, BI & big data consulting & SI, IT managed services, and more and has a midsize team.The firm was launched in 1993.

    Clients

    • Deloitte
    • American Express
    • London Stock Exchange
    • Pret a Manger

    Industries

    Notable Project

    Influential Software developed a Sharepoint solution to improve a children's charity organization's data management and delivered an interactive wiki. 

    "We were very impressed with Influential for the positive meetings and collaboration between our two companies."

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  • 20
    • Scheduling

      4.5
    • Quality

      4.7
    • Cost

      4.7
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • London , United Kingdom

    Compete366 is a cloud agency founded in London in 1998. With over 10 employees, they specialize in cloud consulting, IT strategy consulting, and cybersecurity solutions for small businesses.

    Clients

    • AWOL Adventure
    • ContractUs
    • Godstowe School
    • Wesser

    Notable Project

    Compete366 provided Microsoft Azure cloud support for an engineering consultancy company. The team was hired to help develop custom tools and an HPC platform around Azure.

    "The level of attention provided for their support was amazing."

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  • 21
    • $50,000+
    • 50 - 249 employees
    • London, United Kingdom

    Intellectsoft is a boutique digital transformation consultancy headquartered in Palo Alto, California. The Company provides cutting edge engineering solutions for global and Fortune 500 companies with the mission to help enterprises accelerate adoption of new technologies, untangle complex issues that always emerge during digital evolution, and orchestrate ongoing innovation.

    Intellectsoft maintains its advanced domain expertise through five dedicated labs:  Cognitive Computing, Decentralized Applications (i.e. Blockchain), Internet-of-Things (IOT), Premier Customer Experience (CX), and Mixed Reality (AR, VR).

    Established in 2007, Intellectsoft operates across multiple offices with the engineering centers in the U.S., the U.K., the Nordic region and Eastern Europe.

    Clients

    • Mitsubishi
    • Fleet Nurse
    • Harley-Davidson
    • Jaguar Land Rover

    Industries

    Notable Project

    Intellectsoft was hired to develop a unique mobile gaming app for iOS. They immediately impressed the client with their professionalism and attention to detail.

    "They couldn't have done anything more."

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  • 22
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom
    Evalian is a small cybersecurity and business consulting company. Based in Colden Common, United Kingdom; London, United Kingdom and Worcester, United Kingdom, the firm was founded in 2017. Their team specializes in cybersecurity and business consulting.

    Clients

    • Alliants
    • T.M Lewin
    • Copy Bet
    • Vistry Group

    Industries

    Notable Project

    Evalian held a standard Cyber Essentials Plus assessment for a software company. They run scans and offer an opportunity for remediation before they could be rescanned. 

    "They took the time to make it stress-free while maintaining the impartiality you'd expect as an assessor."

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  • 23
    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom

    Cloudserve is a cloud solutions provider based in Bournemouth, England with an office in London. Founded in 2009, their team of fewer than 50 professionals offers IT managed services, IT strategy consulting, and cloud consulting & SI services for small and medium-sized businesses. They have experience working in various industries, including hospitality, financial services, and IT.

    Clients

    • FJB Hotels
    • BSN Social Care
    • Futur First
    • Braben

    Industries

    Notable Project

    Cloudserve Ltd migrated local servers to a central cloud environment. They integrated Office 365, SharePoint, file-sharing, and implementing abilities into the IT system. They provide ongoing support services.

    "Cloudserve Ltd has delivered exceptional ongoing support."

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  • 24
    • Undisclosed
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Fulcrum Digital is an IT firm based in Jersey City, N.J. with more than 1,000 members worldwide. Founded in 1999, they are experts in IT strategy consulting, ERP consulting, and IT managed services for mid-market and enterprise-level clients alike.

    Clients

    • Picciano and Scahill
    • India First Life Insurance
    • Independence Blue Cross
    • University of London South Bank

    Industries

    Notable Project

    Fulcrum Digital did a complete rebuild and redesign of a case management software using .NET and Angular JS. Redeveloping the backend, the team updated all of the workflow processes and integrations.

    "Their communication and accessibility were great, which was key to the project’s success."

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  • 25
    • Scheduling

      4.4
    • Quality

      4.8
    • Cost

      4.5
    • NPS

      4.7
    Read Full Reviews on Clutch Visit Site
    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom

    Imobisoft is a full-service mobile app & software development company based in Coventry, U.K., with an office in London. The company, founded in 2007, has a team of more than ten that provides custom software development, digital strategy, IoT development, web development, BI & big data consulting & SI, and SEO services. Imobisoft serves midmarket and other-sized companies in the medical, manufacturing, utilities, energy & natural resources, financial services, ane e-commerce industries. 

    Clients

    • NHS (Multiple divisions)
    • BSkyB
    • E-Energy
    • Northern Gas Networks

    Industries

    Notable Project

    An energy supplier hired Imobisoft to provide web and app development. Their efforts also include UI/UX design for a platform that allows salespeople to streamline their processes.

    "Imobisoft developed a web and mobile app using .NET  technologies. The application allows us to bring on thousands of new customers . Without the software they created for us, we wouldn’t be generating sales. We're very satisfied with the design and the application, and it couldn’t be better".

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  • 26
    • Scheduling

      5.0
    • Quality

      5.0
    • Cost

      4.9
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 10 - 49 employees
    • London, United Kingdom

    Core Blue Ltd is a software engineering company based in London with an office in Plymouth, U.K. The company, founded in 2015, has a team of less than ten that provides custom software development, mobile app development, web development, and IoT development services to various companies.

    Clients

    • Bank of Kigali
    • Kuoni
    • SAP
    • PayPoint

    Industries

    Notable Project

    CoreBlue creates a scalable web app for a luxury holiday rental firm by making its core system a web API. They also use React.js and Next.js to build the interface as a server-side rendered single-page app.

    "CoreBlue is receptive to feedback and worked with me to ensure we hold the platform to the highest standard."

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  • 27
    • Undisclosed
    • 50 - 249 employees
    • London, United Kingdom

    Abacus Cambridge Partners is a tech consultancy and BPO company that was founded in 2017. The core London-based team of about 50 coordinates voice, ERP consulting and system integration, IT strategy consulting services for midmarket and enterprise-sized clients in the e-commerce space.

    Clients

    • Hafilat Industry LLC
    • Safaricom
    • Telenor

    Industries

    Notable Project

    Abacus Cambridge Partners provides Apigee platform management services for a holding company. They also oversee a CIM (Customer Identity Management) platform as well as API maturity and governance.

    “They understand and listen to our needs.”

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  • 28
    • Scheduling

      4.7
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $25,000+
    • 10 - 49 employees
    • London, United Kingdom

    Exometrics is an AI development company. They are in London, United Kingdom and have a small team. The agency provides Artificial Intelligence, BI & big data consulting & SI, and business consulting.

    Industries

    Notable Project

    Exometrics created a machine learning (ML) algorithm for a digital asset mining company’s anti-money laundering tool. Their work involved creating a proof of concept (POC) for the firm to use in their service.

    “Their ML skills were top-notch.”

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  • 29
    • Scheduling

      4.8
    • Quality

      5.0
    • Cost

      5.0
    • NPS

      5.0
    Read Full Reviews on Clutch Visit Site
    • $1,000+
    • 10 - 49 employees
    • London, United Kingdom

    Texaport Ltd is a tech support company based in Edinburgh, Scotland. With a team of 50 members. Founded in 2012, the company provides cybersecurity, IT managed services, and IT strategy consulting services to mid-market firms as well as small and large companies. They have worked in various industries, such as IT, business services, and telecommunications.

    They have worked with clients in Edinburgh, where their business was founded, as well as those based throughout the UK and across the globe.

    Industries

    Notable Project

    Texaport Ltd provides comprehensive IT services including 24-hour support, GDPR consulting, and troubleshooting.  

    "Their communication is top notch, and they respond to us quickly." 

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  • 30
    • $50,000+
    • 10 - 49 employees
    • London, United Kingdom

    Coeus Consulting is a small IT strategy consulting company. Established in 2013, the agency is headquartered in London, United Kingdom and Düsseldorf, Germany. Their services include IT strategy consulting, cloud consulting & SI, BI & big data consulting & SI, CRM consulting and SI, and more.

    Industries

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