Top 100 IT Services Companies in London

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Top 100 IT Services Companies in London

The Best of December 2025

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

  • 151
    (5 Reviews) 4.7

    Timeliness

    4.9

    Service Excellence

    4.7

    Value

    4.3

    Would Recommend

    4.9
    $75,000+
    250 - 999 employees
    Istanbul, Türkiye
    Testinium is an Application Testing company. Their midsize team is in Istanbul, Türkiye; Den Haag, Netherlands; San Francisco, California and London, England and specializes in Application Testing, IT managed services, Application Management & Support, IT strategy consulting, and more. The firm was launched in 2009.
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    Clients

    ING

    Industries

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  • 152
    (5 Reviews) 4.6

    Timeliness

    4.6

    Service Excellence

    4.4

    Value

    4.7

    Would Recommend

    4.8
    $50,000+
    50 - 249 employees
    London, England

    Ignitho Technologies is a New York-based digital technology solutions company founded in 2013. Their team of 55 employees specializes in custom software development and IT services. Their clients are typically midmarket businesses in the financial services, retail, and hospitality industries.

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    Clients

    Talent Intelligence

    Industries

  • 153
    (7 Reviews) 4.7

    Timeliness

    4.8

    Service Excellence

    4.8

    Value

    4.5

    Would Recommend

    5.0
    $10,000+
    10 - 49 employees
    London, England

    The Data Analysis Bureau is a data science and engineering innovation agency focusing in artificial intelligence and cloud consulting & SI. Founded in 2016, they're based in London. Their team of around 20 employees serves mostly midmarket and enterprise clients. 

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    Clients

    Trigger Racing

    Industries

  • 154
    (1 Reviews) 3.5

    Timeliness

    3.5

    Service Excellence

    3.0

    Value

    3.5

    Would Recommend

    3.0
    $5,000+
    250 - 999 employees
    London, England
    Technology Services Group, an IT managed services company, was established in 2003. They are based in Gateshead, England; London, England and Glasgow, Scotland and have a midsize team. Technology Services Group specializes in IT managed services, IT strategy consulting, and cloud consulting & SI.
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    Industries

  • 155
    (10 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    50 - 249 employees
    London, England
    Located in London, England and St. Cloud, Florida, Armakuni is a Generative AI company. They offer Generative AI, cloud consulting & SI, Artificial Intelligence, AI Consulting, and more and were launched in 2012.
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    Industries

  • 156
    (5 Reviews) 4.8

    Timeliness

    4.8

    Service Excellence

    4.8

    Value

    5.0

    Would Recommend

    5.0
    $25,000+
    50 - 249 employees
    London , England

    TMotions Global Ltd is a custom software development firm established in 2004. The midsize team specializes in custom software development, enterprise app modernization, application management & support, and cloud consulting & SI. The firm is located in London , United Kingdom and Sahibzada Ajit Singh Nagar, India.

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    Clients

    An Australian food retailer that has 700 stores across Australia and has an online b2B and B2C portal working seamlessly to manage cohesive inventory and order view.

    Industries

  • 157
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $25,000+
    10 - 49 employees
    London, England

    Aleios is a custom software development firm. They are located in London, United Kingdom and have a small team. Their services include custom software development, enterprise app modernization, web development, and other IT consulting and SI. The firm was founded in 2021.

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    Industries

  • 158
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    4.5

    Value

    5.0

    Would Recommend

    5.0
    $100,000+
    10 - 49 employees
    London, England
    Cogworks is a London, England-based user experience design agency. The small team focuses on UX/UI Design, Digital Strategy, Web Development, IT strategy consulting, and more. The agency was established in 2006.
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    Industries

  • 159
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    2 - 9 employees
    London, England

    Fast Data Science is a consultancy founded in Thornton Heath, England in 2018 with no more than 10 employees. They are experts in big data consulting solutions for medium and enterprise-level firms in the fields of healthcare and IT services.

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    Clients

    Boehringer Ingelheim

    Industries

  • 160
    (3 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $5,000+
    10 - 49 employees
    London, England
    Buttercups is a custom software development company and web development firm. The Kyiv, Ukraine-based firm was established in 2019. The small team offers custom software development and web development.
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    Clients

    MobiWallet

    Industries

  • 161
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    250 - 999 employees
    London, England
    Professional Advantage is a midsize ERP consulting and SI company in North Sydney, Australia and Melbourne, Australia. Their services include ERP consulting and SI and cloud consulting & SI.
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    Industries

  • 162
    (2 Reviews) 5.0

    Timeliness

    4.8

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $5,000+
    2 - 9 employees
    Harrow, England

    Testdel UK Ltd. Is a small application testing company. Launched in 2015, the team provides application testing, IT managed services, IT strategy consulting, and other IT consulting and SI. The firm is located in Harrow, United Kingdom and Chandigarh, India.

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    Industries

  • 163
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    4.5

    Would Recommend

    5.0
    $50,000+
    10 - 49 employees
    London, England

    Nansen is a small IT managed services company. Established in 2007, the company is headquartered in Chicago, Illinois and London, United Kingdom. Their services include IT managed services, web development, e-commerce development, ux/ui design, and more.

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    Industries

  • 164
    (0 Reviews)

    Not yet reviewed.

    $1,000+
    50 - 249 employees
    London, England
    WQsoftwares, a Marketing Strategy company, was established in 2014. The midsize team provides Marketing Strategy and cloud consulting & SI.
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  • 165
    (0 Reviews)

    Not yet reviewed.

    $250,000+
    50 - 249 employees
    London, England
    NovaFori is a custom software development firm. They were launched in 2011, and their services include Custom Software Development and IT strategy consulting.
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    Clients

    Christie's

    Industries

  • 166
    (6 Reviews) 4.8

    Timeliness

    4.8

    Service Excellence

    4.7

    Value

    4.5

    Would Recommend

    4.7
    $1,000+
    50 - 249 employees
    London, England

    Midsize IT managed services company Smart Working, is located in London, United Kingdom. Established in 2020, the team focuses on IT managed services, other IT consulting and SI, and IT staff augmentation.

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    Industries

  • 167
    (2 Reviews) 5.0

    Timeliness

    4.8

    Service Excellence

    4.8

    Value

    5.0

    Would Recommend

    4.8
    $5,000+
    50 - 249 employees
    London, England

    Web development firm Rafiki was established in 2023. The company provides web development, product design, IT managed services, and Artificial Intelligence and has a midsize team. The company is based in London, United Kingdom.

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    Industries

  • 168
    (4 Reviews) 4.8

    Timeliness

    4.4

    Service Excellence

    4.8

    Value

    4.6

    Would Recommend

    4.9
    $5,000+
    10 - 49 employees
    London, England
    Worxwide Consulting Pvt. Ltd. Is an user experience design company launched in 2016. The agency offers UX/UI Design, CRM consulting and SI, Product Design, AI Consulting, and more and has a small team. The agency is located in London, England and Gurugram, India.
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    Industries

  • 169
    (3 Reviews) 4.3

    Timeliness

    4.3

    Service Excellence

    4.0

    Value

    4.0

    Would Recommend

    4.7
    $5,000+
    10 - 49 employees
    London, England

    Technology consulting firm Priocept is based in London. Their team includes 11 employees. Priocept has been specializing in e-commerce development, IT consulting, and web development since it was founded in 2004. Most of their partnerships include enterprise and midmarket clients. 

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    Clients

    Argos

    Industries

  • 170
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    Undisclosed
    2 - 9 employees
    London, England
    Big data company TagDataTrust was founded in 2017. The small team focuses on BI & big data consulting & SI, IT strategy consulting, digital strategy, conversion optimization, and more. The company is headquartered in London, United Kingdom.
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  • 171
    (0 Reviews)

    Not yet reviewed.

    $25,000+
    50 - 249 employees
    London, England
    ThinkData Works, a big data company, focuses on BI & big data consulting & SI. The agency is headquartered in Toronto, Canada and London, England.
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    Clients

    Lloyds Bank

    Industries

  • 172
    (4 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $10,000+
    2 - 9 employees
    London, England

    Small custom software development firm inCode Systems, is headquartered in London, United Kingdom. The team specializes in custom software development, enterprise app modernization, ux/ui design, e-commerce development, and more.

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    Industries

  • 173
    (0 Reviews)

    Not yet reviewed.

    $250,000+
    1,000 - 9,999 employees
    London, England
    Infostretch is a large Application Testing company headquartered in Santa Clara, California and New York, New York. Their services include Application Testing and Enterprise App Modernization.
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    Industries

  • 174
    (4 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    2 - 9 employees
    London, England

    Founded in 2018, Artecha is a development firm. Their team of around 5 employees is based in London, with additional offices in Kyiv, Ukraine and Milan They focus on web development, mobile app development, and application management.

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    Clients

    Propertalis

    Industries

  • 175
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    250 - 999 employees
    London, England
    Royal Cyber is an UX design agency. Launched in 2002, their team specializes in UX/UI Design and cloud consulting & SI.
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    Industries

  • 176
    (2 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    2 - 9 employees
    London, England
    MVee Media Ltd., an Advertising company, was founded in 2015. Their small team is headquartered in London, England; London, England and Watford, England. The firm specializes in Advertising, Search Engine Optimization, cloud consulting & SI, and Ecommerce Marketing.
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    Industries

  • 177
    (1 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    2 - 9 employees
    Wembley, England
    VUPAX Solutions Limited, an user experience design company, was founded in 2025. Their small team is based in Wembley, England. Their services include UX/UI Design, cloud consulting & SI, Cybersecurity, Custom Software Development, and more.
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  • 178
    (2 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    10 - 49 employees
    London, England
    Ishango.ai is a cloud consulting & SI company. They specialize in cloud consulting & SI, Custom Software Development, BI & big data consulting & SI, Web Development, and more and were established in 2022. Their small team is London, England-based.
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    Industries

  • 179
    (0 Reviews)

    Not yet reviewed.

    Undisclosed
    250 - 999 employees
    Gurugram, India
    MediaAgility, a cloud consulting & SI company, is in Princeton, New Jersey and Gurugram, India. The team offers cloud consulting & SI and unified communications consulting & SI.
    Read More

    Industries

  • 180
    (0 Reviews)

    Not yet reviewed.

    $50,000+
    1,000 - 9,999 employees
    London, England
    BGTS, a custom software development company, is headquartered in London, England and Sheffield, England. Their services include Custom Software Development and IT staff augmentation.
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    Industries

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