Top 30 Software Development Companies in London

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Top 30 Software Development Companies in London

The Best of December 2025
The right custom software can give a struggling or growing business the edge it needs. Different kinds of custom software exist for all kinds of functions, such as enterprise resource planning solutions, customer relationship management systems, and content management systems. 
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List of the Best London Software Development Firms

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  • 1

    (139 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $50,000+
    250 - 999 employees
    London, England
    Empat is an app development company established in 2013. They are in San Francisco, California; Kyiv, Ukraine; London, England and Miami, Florida and have a midsize team. Their services include Mobile App Development, Custom Software Development, and Web Development.
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    Clients

    Obimy — A mobile app connecting loved ones across distances with over 10 million downloads on iOS and Android. Enables seamless communication and emotional connection. Mobile app development and social networking focus. Bigsister — Custom AI software designed for sales performance tracking and analysis, providing clean, accurate data to optimize sales teams and improve efficiency with advanced analytics. Trigga — A fintech project featuring payment systems and a comprehensive analytical database to support secure transactions and financial insights for smarter decision-making. DentalCare — Healthcare ecosystem with mobile app, web development, and CRM tools for managing patient records, tracking appointments, and sending automated reminders to improve patient care.

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  • 2

    (98 Reviews) 4.9

    Timeliness

    4.8

    Service Excellence

    4.8

    Value

    4.7

    Would Recommend

    4.9
    $25,000+
    1,000 - 9,999 employees
    Woodbridge Township, NJ
    Software development company Vention is headquartered in New York, New York; Marietta, Georgia; Woodbridge Township, New Jersey and London, England. The large team provides Custom Software Development, IT staff augmentation, Web Development, Mobile App Development, and more. The firm was established in 2002.
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    Clients

    IBM PayPal pwc IC Markets

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  • 3

    (49 Reviews) 4.7

    Timeliness

    4.6

    Service Excellence

    4.7

    Value

    4.4

    Would Recommend

    4.9
    $25,000+
    250 - 999 employees
    London, England

    Future Processing, a software development firm, was founded in 2000. They are based in Gliwice, Poland; Ternopil, Ukraine; London, England and Düsseldorf, Germany and have a midsize team. Future Processing provides Custom Software Development, cloud consulting & SI, BI & big data consulting & SI, Web Development, and more.

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    Clients

    Allocate

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  • 4

    (111 Reviews) 4.9

    Timeliness

    4.8

    Service Excellence

    4.8

    Value

    4.7

    Would Recommend

    4.9
    $10,000+
    250 - 999 employees
    London, England
    GeekyAnts is a Bengaluru, India-based custom software development firm. The midsize team provides Custom Software Development, Mobile App Development, Web Development, Artificial Intelligence, and more. The firm was launched in 2006.
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    Clients

    Siveco Romania Olive Garden Darden KhataBook

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  • 5

    (36 Reviews) 4.7

    Timeliness

    4.7

    Service Excellence

    4.7

    Value

    4.7

    Would Recommend

    4.8
    $10,000+
    250 - 999 employees
    Novi Sad, Serbia
    Vega IT is a midsize software development firm established in 2008. Their services include Custom Software Development, CRM consulting and SI, Mobile App Development, E-Commerce Development, and more. The agency is headquartered in Novi Sad, Serbia; New York, New York and London, England.
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  • 6

    (54 Reviews) 4.8

    Timeliness

    4.6

    Service Excellence

    4.7

    Value

    4.5

    Would Recommend

    4.9
    $50,000+
    250 - 999 employees
    Ljubljana, Slovenia
    Infinum, a custom software development company, was founded in 2005. The firm offers Custom Software Development, Mobile App Development, UX/UI Design, Web Development, and more and has a midsize team. The firm is in New York, New York; San Francisco, California; Zagreb, Croatia and Ljubljana, Slovenia.
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    Clients

    Philips

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  • 7

    (129 Reviews) 4.9

    Timeliness

    4.8

    Service Excellence

    4.8

    Value

    4.6

    Would Recommend

    4.9
    $50,000+
    1,000 - 9,999 employees
    London, England

    Andersen Inc. Is a software development company based in Warszawa, Poland; Kraków, Poland; Dallas, Texas and London, England. The large team provides Custom Software Development, IT managed services, Mobile App Development, IT strategy consulting, and more. The agency was established in 2007.

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    Clients

    Samsung

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  • 8

    (44 Reviews) 4.9

    Timeliness

    4.9

    Service Excellence

    4.9

    Value

    4.9

    Would Recommend

    5.0
    $10,000+
    50 - 249 employees
    Toronto, Canada

    Launched in 2018, Rootquotient is a midsize software development company. Their team offers Custom Software Development, Artificial Intelligence, and Mobile App Development. The firm is based in Toronto, Canada; Chennai, India; Richmond, Canada and London, England.

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    Clients

    Siemens Gamesa

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  • 9

    (34 Reviews) 4.9

    Timeliness

    4.9

    Service Excellence

    4.8

    Value

    4.6

    Would Recommend

    4.9
    $25,000+
    50 - 249 employees
    London, England

    Imaginary Cloud is a Web, Mobile and AI Software Development and UX/UI Design Company with offices in the UK, US and Portugal. In the last 11 years they have helped build and scale more than 300 applications, from Start-ups, Scale-ups to Enterprises, winning several global awards. They offer a comprehensive skill set of developers, data scientists and designers coupled with a streamlined agile process.

     
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    Clients

    Nokia

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  • 10

    (36 Reviews) 4.9

    Timeliness

    4.8

    Service Excellence

    4.8

    Value

    4.7

    Would Recommend

    4.9
    $50,000+
    1,000 - 9,999 employees
    London, England
    10Pearls is a custom software development company located in Vienna, Virginia; Medellín, Colombia; New York, New York and San Rafael de Escazú, Costa Rica. The large firm was established in 2004. Their services include Custom Software Development, Mobile App Development, Artificial Intelligence, cloud consulting & SI, and more.
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    Clients

    HughesNet

    Industries

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  • 11

    (46 Reviews) 4.9

    Timeliness

    4.9

    Service Excellence

    4.8

    Value

    4.9

    Would Recommend

    4.9
    $25,000+
    1,000 - 9,999 employees
    London, England
    Located in Ahmedabad, India; Murphy, Texas; Melbourne, Australia and London, England, TatvaSoft is a custom software development firm. The large firm was launched in 2001. Their services include Custom Software Development, Web Development, Mobile App Development, and cloud consulting & SI.
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    Clients

    Anglo American

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  • 12

    (54 Reviews) 4.7

    Timeliness

    4.6

    Service Excellence

    4.6

    Value

    4.4

    Would Recommend

    4.8
    $50,000+
    1,000 - 9,999 employees
    London, England
    Custom software development firm Kellton is in Reston, Virginia; PERYDOT, Poland; Gurugram, India and Plano, Texas. The large agency was launched in 2009. Their services include Custom Software Development, Mobile App Development, Artificial Intelligence, BI & big data consulting & SI, and more.
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    Industries

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  • 13

    (31 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $25,000+
    50 - 249 employees
    London, England
    Midsize software development firm GoodCore Software, is headquartered in London, England; Karachi, Pakistan and Cyberjaya, Malaysia. Founded in 2005, the team specializes in Custom Software Development, Artificial Intelligence, Web Development, IT strategy consulting, and more.
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    Clients

    PMLL GCBF Hirevine London Women's Clinic

    Industries

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  • 14

    (16 Reviews) 4.8

    Timeliness

    4.7

    Service Excellence

    4.7

    Value

    4.6

    Would Recommend

    4.9
    $50,000+
    250 - 999 employees
    London, England
    Launched in 2006, SPD Technology is a software development company. Their midsize team is located in London, England; Kyiv, Ukraine; București, Romania and Aradippou, Cyprus. Their team offers Custom Software Development, Artificial Intelligence, and IT managed services.
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    Clients

    PitchBook GoDaddy Roche Morningstar

    Industries

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  • 15

    (74 Reviews) 4.8

    Timeliness

    4.8

    Service Excellence

    4.7

    Value

    4.8

    Would Recommend

    4.8
    $1,000+
    50 - 249 employees
    Hertfordshire, England

    IIH Global is a midsize custom software development company. The Hertfordshire, England-based firm was established in 2013. Their team provides Custom Software Development, Mobile App Development, Web Design, Web Development, and more.

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    Clients

    FLOORS TO WALLS Inode Ultimate Player HQ Pharmsmart

    Industries

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  • 16

    (31 Reviews) 4.8

    Timeliness

    4.7

    Service Excellence

    4.8

    Value

    4.6

    Would Recommend

    4.9
    $25,000+
    1,000 - 9,999 employees
    London, England

    ELEKS is a custom software development firm established in 1991. Their large team is in Tallinn, Estonia; L'viv, Ukraine; Berlin, Germany and Rzeszów, Poland. Their services include Custom Software Development, BI & big data consulting & SI, cloud consulting & SI, Cybersecurity, and more.

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    Clients

    BNY Mellon DPD Acino DRAX

    Industries

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  • 17

    (49 Reviews) 4.7

    Timeliness

    4.6

    Service Excellence

    4.7

    Value

    4.7

    Would Recommend

    4.7
    $50,000+
    250 - 999 employees
    London , England
    Net Solutions, an artificial intelligence firm, was launched in 2000. They are located in Toronto, Canada; Chandigarh, India; London , England and New York, New York and have a midsize team. Net Solutions specializes in Artificial Intelligence, Custom Software Development, and E-Commerce Development.
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    Clients

    Microsoft

    Industries

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  • 18

    (39 Reviews) 4.9

    Timeliness

    4.9

    Service Excellence

    4.9

    Value

    4.8

    Would Recommend

    5.0
    $25,000+
    1,000 - 9,999 employees
    London, England
    Itransition is a custom software development company founded in 1998. Their large team is located in Denver, Colorado; London, England; Vilnius, Lithuania and Warszawa, Poland and specializes in Custom Software Development, BI & big data consulting & SI, cloud consulting & SI, ERP consulting and SI, and more.
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    Clients

    Expedia

    Industries

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  • 19

    (30 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

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

    DotCode is a design and development company based in Lviv, Ukraine, and founded in 2018. Their team of more than 10 provides web development, web design, and e-commerce development solutions for clients in the fields of hospitality, advertising, and financial services.

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    Clients

    Ply LCM Digital Fly Jets Thrive

    Industries

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  • 20

    (93 Reviews) 4.7

    Timeliness

    4.6

    Service Excellence

    4.6

    Value

    4.6

    Would Recommend

    4.7
    $1,000+
    1,000 - 9,999 employees
    London, England

    Dotsquares is an IT managed services company in London, England; Mount Waverley, Australia; Albourne, England and Jaipur, India. The firm specializes in IT managed services, Web Development, Custom Software Development, Mobile App Development, and more and has a large team.The firm was founded in 2002.

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    Clients

    Ericsson

    Industries

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  • 21

    (18 Reviews) 4.8

    Timeliness

    4.9

    Service Excellence

    4.9

    Value

    4.3

    Would Recommend

    4.9
    $50,000+
    250 - 999 employees
    London, England
    Method is a midsize UX agency. They specialize in UX/UI Design, Custom Software Development, Digital Strategy, Mobile App Development, and more and were launched in 1999. The agency is located in New York, New York; London, England; Santa Clara, California and Charlotte, North Carolina.
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    Industries

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  • 22

    (12 Reviews) 4.8

    Timeliness

    4.7

    Service Excellence

    4.8

    Value

    4.8

    Would Recommend

    5.0
    $10,000+
    50 - 249 employees
    London, England

    Haefele Software is a midsize Cape Town, South Africa-based software development company. They focus on Custom Software Development, Enterprise App Modernization, Web Development, API Development, and more and were founded in 2006.

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    Clients

    Tesco Burger King AS Watson Group Pikmykid

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  • 23

    (23 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    4.9

    Would Recommend

    5.0
    $10,000+
    10 - 49 employees
    London, England
    Based in London, England; Plymouth, England; Edinburgh, Scotland and Manchester, England, Coreblue is a custom software development firm. The small team offers Custom Software Development, Mobile App Development, IT strategy consulting, Low/No Code Development, and more. The agency was established in 2015.
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    Clients

    Bank of Kigali Executive Nexus ProConvey

    Industries

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  • 24

    (12 Reviews) 4.7

    Timeliness

    4.5

    Service Excellence

    4.6

    Value

    4.7

    Would Recommend

    4.8
    $75,000+
    1,000 - 9,999 employees
    London, England
    NashTech is a large software development company. The London, England-based company was established in 2000. Their services include Custom Software Development, cloud consulting & SI, Generative AI, Digital Engineering, and more.
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    Industries

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  • 25

    (43 Reviews) 4.7

    Timeliness

    4.7

    Service Excellence

    4.7

    Value

    4.8

    Would Recommend

    4.8
    $10,000+
    250 - 999 employees
    London, England
    In Sahibzada Ajit Singh Nagar, India; London, England and Great Neck, New York, SoftProdigy is a software development company. The midsize agency was launched in 2006. Their team offers Custom Software Development, Mobile App Development, Artificial Intelligence, cloud consulting & SI, and more.
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    Clients

    Deloitte

    Industries

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  • 26

    (70 Reviews) 4.7

    Timeliness

    4.6

    Service Excellence

    4.7

    Value

    4.5

    Would Recommend

    4.7
    $25,000+
    50 - 249 employees
    London, England

    Located in London, England; Sydney, Australia and Sunny Isles Beach, Florida, Magora is a software development company. The midsize team specializes in Custom Software Development, Mobile App Development, Web Development, Artificial Intelligence, and more. The agency was launched in 2010.

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    Clients

    Danone

    Industries

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  • 27

    (35 Reviews) 4.8

    Timeliness

    4.7

    Service Excellence

    4.7

    Value

    4.3

    Would Recommend

    4.9
    $100,000+
    1,000 - 9,999 employees
    Wrocław, Poland
    N-iX, a big data analytics company, was founded in 2002. In North Miami Beach, Florida; Malmö, Sweden; North Miami Beach, Florida and Kraków, Poland, their large team provides BI & big data consulting & SI, Artificial Intelligence, Custom Software Development, cloud consulting & SI, and more.
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    Clients

    Bosch Siemens eBay Total Energies

    Industries

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  • 28

    (4 Reviews) 4.8

    Timeliness

    4.6

    Service Excellence

    4.8

    Value

    3.8

    Would Recommend

    5.0
    $50,000+
    1,000 - 9,999 employees
    Craiova, Romania

    Pentalog is a large Brașov, Romania-based custom software development company. Established in 1993, the team offers custom software development, IT staff augmentation, e-commerce development, and web development.

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    Clients

    Adidas

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  • 29

    (22 Reviews) 4.7

    Timeliness

    4.7

    Service Excellence

    4.8

    Value

    4.4

    Would Recommend

    4.9
    $10,000+
    250 - 999 employees
    London, England

    Founded in 2015, Transparity is a cloud consulting & SI company. The midsize London, England-based team offers cloud consulting & SI, IT managed services, Custom Software Development, Artificial Intelligence, and more.

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    Clients

    Apex NSPCC NHS Lush

    Industries

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  • 30

    (116 Reviews) 5.0

    Timeliness

    5.0

    Service Excellence

    5.0

    Value

    5.0

    Would Recommend

    5.0
    $1,000+
    1,000 - 9,999 employees
    London, England
    Founded in 2016, Probey Services is a web design company. They are based in London, England; New York, New York; Noida, India and Toronto, Canada and have a large team. The agency provides Web Design, Web Development, Mobile App Development, and Custom Software Development.
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