Top 100 Systems Integrator Companies in London

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Top 100 Systems Integrator Companies in London

The Best of March 2024

Jump to Most Reviewed Companies

List of the Best London System Integrators

  • 1
    (19 Reviews) 4.8
    • Timeliness

      4.8
    • Service Excellence

      4.8
    • Value

      4.4
    • Would Recommend

      4.9
    • $25,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Keyrus is a digital consulting agency that has been offering BI and Big Data consulting, IT strategy consulting, Cloud consulting, and SI services to their clients in the retail, business services, and financial services industries since 1996. Their 10,000 employees are based out of their offices in London, NYC, LA, D.C., France, and Toronto. 

     

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    Clients

    • Dannon
    • Shake Shack
    • AB InBev
    • Remy Cointreau

    Industries

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  • 2
    (31 Reviews) 4.8
    • Timeliness

      4.7
    • Service Excellence

      4.8
    • Value

      4.3
    • Would Recommend

      5.0
    • $100,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    N-iX is a global software solutions and engineering services company that helps the world’s leading organizations turn challenges into lasting business value,  operational efficiency,  and revenue growth using modern technology. With over 2,000 professionals in 25 countries across Europe and the Americas, N-iX offers expert solutions in cloud, data analytics, embedded software, IoT, AI, machine learning, and other tech domains. Being in business for over two decades, we have worked with dozens of industry-leading enterprises and Fortune 500 companies, creating value across a wide variety of sectors, including finance, manufacturing, supply chain, retail, and more. 

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    Clients

    • Fortune 500 companies
    • Bosch
    • Siemens
    • Ebay

    Industries

  • 3
    (12 Reviews) 4.7
    • Timeliness

      4.5
    • Service Excellence

      4.7
    • Value

      4.7
    • Would Recommend

      4.8
    • $100,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom
    NashTech is a large London, United Kingdom-based software development company. Established in 2000, the team specializes in custom software development, IT strategy consulting, and application testing.
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    Industries

  • 4
    (70 Reviews) 4.8
    • Timeliness

      4.7
    • Service Excellence

      4.8
    • Value

      4.5
    • Would Recommend

      4.9
    • $250,000+
    • 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.

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    Clients

    • AstraZeneca
    • Expedia
    • Santander
    • Barclays

    Industries

  • 5
    (18 Reviews) 4.8
    • Timeliness

      4.6
    • Service Excellence

      4.8
    • Value

      4.3
    • Would Recommend

      4.9
    • $50,000+
    • 250 - 999 employees
    • London, United Kingdom

    Headquartered in London, Opinov8 Technology Services is a technology solutions company that was founded in 2016. With offices in Ukraine and Spain, the team of 88 works with mid-market and small businesses in the financial services, advertising, marketing, gambling, hospitality, IT, and media industries. Opinov8 specializes in custom software development, enterprise app modernization, big data consulting, and clould consulting for clients.

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    Clients

    • Fortune 500 Companies
    • Computer and IT service business. Leading Global Media companies. Global Logistics Technology business
    • Leading European Fintech Platform businesses. Global Tire Manufacturers. Leading European Car Manufacturer.  Top 100 Swiss Healthtech Startup. Many more

    Industries

  • 6
    (69 Reviews) 4.6
    • Timeliness

      4.5
    • Service Excellence

      4.6
    • Value

      4.5
    • Would Recommend

      4.6
    • $5,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Despite only being around since 2002, Dotsquares has nearly 1000 employees across the UK, UAE, US, Australia, India, and France. They offer a staggering variety of services, including web, app, game, and e-commerce development and IT consulting and support.

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    Clients

    • Ericsson
    • Dunkin Donuts
    • Shieldpay Ltd
    • Kenwood

    Industries

  • 7
    (7 Reviews) 4.7
    • Timeliness

      4.4
    • Service Excellence

      4.7
    • Value

      4.1
    • Would Recommend

      5.0
    • $10,000+
    • 1,000 - 9,999 employees
    • London, United Kingdom

    Founded in 2005, PGS Software is an IT solutions company based in Wroclaw, Poland. They provide development and consulting services to businesses of all sizes from a variety of industries. 

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    Clients

    • Yell
    • Schmitz-Cargobull
    • Coople
    • Interflon

    Industries

  • 8
    (13 Reviews) 4.8
    • Timeliness

      4.7
    • Service Excellence

      4.8
    • Value

      4.8
    • Would Recommend

      5.0
    • $5,000+
    • 250 - 999 employees
    • London, United Kingdom

    Polestar Solutions & Services is an IT services company with locations in Mumbai and Noida, India. Since 2012, their team of 150+ specializes in BI & big data consulting & SI, IT managed services, IT strategy consulting, and staff augmentation for mostly midmarket clients. 

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    Clients

    • Havells
    • Orient
    • Paytm
    • HCL Technologies

    Industries

  • 9
    (11 Reviews) 4.8
    • Timeliness

      4.6
    • Service Excellence

      4.8
    • Value

      4.5
    • Would Recommend

      4.8
    • $25,000+
    • 50 - 249 employees
    • London, United Kingdom

    Beyond Analysis is a marketing and advertising firm that has offices in Wimbledon, United Kingdom and Sydney, Australia. Founded in 2007, Beyond Analysis's team of just over 20 employees has over a decade of experience specializing in big data consulting/SI. The firm also offers artificial intelligence and marketing research services to its clients.   

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    Clients

    • DFS
    • Travelport
    • Mcdonalds
    • Fleetcor

    Industries

  • 10
    (50 Reviews) 4.9
    • Timeliness

      4.9
    • Service Excellence

      4.9
    • Value

      4.8
    • Would Recommend

      4.9
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    TkXel is a mobile app and web development company founded in 2007. With its headquarters in Reston, Va., and an office in Lahore, Pakistan, they have a team of 318 employees. Their services include mobile app development, web development, and custom software development. They primarily serve small and midmarket clients. 

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    Clients

    • ABB
    • Nokia
    • Groupon
    • TELUS

    Industries

  • 11
    (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, United Kingdom

    Founded in 1998 in Denver, Itransition now has multiple offices in the U.S., U.K., E.U., and locations in eastern Europe housing more than 2,200 employees. They help power enterprises and SMBs globally with their digital solutions in the areas of business process automation, AI, data analytics, customer experience, and others. 

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    Clients

    • Expedia
    • Xerox
    • Toyota
    • eBay

    Industries

  • 12
    (1 Reviews) 5.0
    • Timeliness

      4.5
    • Service Excellence

      5.0
    • Value

      4.0
    • Would Recommend

      5.0
    • $1,000+
    • 250 - 999 employees
    • London, United Kingdom

    Launched in 2011, Dynamics Square is a big data analytics company. The company specializes in BI & big data consulting & SI, cloud consulting & SI, CRM consulting and SI, ECM consulting and SI, and more and has a midsize team.

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    Industries

  • 13
    (7 Reviews) 4.7
    • Timeliness

      4.3
    • Service Excellence

      4.7
    • Value

      4.3
    • Would Recommend

      5.0
    • $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.

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    Clients

    • SITA
    • Lenovo
    • iHeart Media
    • Panasonic

    Industries

  • 14
    (26 Reviews) 4.9
    • Timeliness

      4.9
    • Service Excellence

      4.9
    • Value

      4.5
    • Would Recommend

      4.9
    • $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.

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    Clients

    • The Carlyle Group
    • Nasdaq
    • Apax Partners
    • Monex

    Industries

  • 15
    (4 Reviews) 4.8
    • Timeliness

      4.8
    • Service Excellence

      4.8
    • Value

      4.4
    • Would Recommend

      4.6
    • $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. 

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    Clients

    • Unilever
    • Bauer Media Group
    • Asahi
    • Anglo American
  • 16
    (10 Reviews) 4.8
    • Timeliness

      4.8
    • Service Excellence

      4.8
    • Value

      3.9
    • Would Recommend

      4.5
    • $5,000+
    • 250 - 999 employees
    • London, United Kingdom

    A Salesforce Partner Innovation Award winner 2020. A full-service Salesforce Platinum consulting, development & outsourcing partner delivering across the entire Salesforce platform. 500+ people, 16 offices in 12 countries, we think globally and delivery locally.

     

    We have been 100% focused on helping transform businesses within the Salesforce ecosystem over the last 10 years. Clients love our flexible, nimble, and cost-effective approach. It's why we receive an average customer satisfaction rating of 4.8 out of 5.

     

    As PDO Experts, Salesforce.org Impact Partners, and Tableau Partners, we are one of a few Salesforce partners to have the technical scale, expertise, and experience to design & deliver core Salesforce implementations & AppExchange apps.

     

    You benefit from our industry knowledge and experience by implementing a best practice solution within your business. Quickly & efficiently. Our specialist certified consultants & developers have delivered over 1000 projects to more than 350 clients.

     

    We work hand-in-hand with stakeholders to create achievable roadmaps, deliver benefits quickly & maximize Salesforce investments. We have the technical expertise & experience to deliver solutions across all Salesforce clouds, for all sizes of companies, in many industries.

     

    With 500+ Salesforce professionals located in our regional offices and central delivery hubs, we utilize best practice Salesforce technology and dev ops, enabling our customers to realize the benefits quickly.

     

    We have the scale to provide dedicated teams of developers and consultants to our GSI and ISV partners. Since 2013, Salesforce Services has used VRP’s development expertise on over 20 of their most strategic, enterprise accounts. As one of the few PDO experts, we have helped ISVs with ideation, design, development, and support with AppExchange apps.

     

    Our dedicated Managed Service team provides support, admin & small enhancements to clients via flexible, responsive & cost-effective monthly packages of hours.

     

    Key clients:  Rolls Royce, Welk Resorts, BVT Sweden, Felm, Beyond Better Foods, Digital Genius

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    Clients

    • Rolls Royce
    • Welk Resorts
    • BVT Sweden
    • Felm

    Industries

  • 17
    (6 Reviews) 5.0
    • Timeliness

      5.0
    • Service Excellence

      5.0
    • Value

      4.9
    • Would Recommend

      4.9
    • $5,000+
    • 50 - 249 employees
    • London, United Kingdom

    Founded in 2021, Stackgenie is a cloud consulting & SI company. Their small team is in London, United Kingdom and Thiruvananthapuram, India. Their services include cloud consulting & SI, cybersecurity, and IT managed services.

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    Industries

  • 18
    (5 Reviews) 5.0
    • Timeliness

      5.0
    • Service Excellence

      5.0
    • Value

      4.9
    • Would Recommend

      5.0
    • $10,000+
    • 250 - 999 employees
    • London, United Kingdom

    Link Group Global, inc. Is an Austin, Texas-based human resources agency. The midsize company was established in 2015. Their services include HR services, IT managed services, and IT staff augmentation.

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    Clients

    • Danone
    • StoneX
    • Standard Chartered
    • Accor

    Industries

  • 19
    (4 Reviews) 5.0
    • Timeliness

      4.6
    • Service Excellence

      5.0
    • Value

      4.5
    • Would Recommend

      5.0
    • $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.

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    Clients

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

    Industries

  • 20
    (3 Reviews) 4.8
    • Timeliness

      4.2
    • Service Excellence

      4.8
    • Value

      4.5
    • Would Recommend

      4.7
    • $25,000+
    • 50 - 249 employees
    • London, United Kingdom

    Esynergy is a big data analytics company. They are headquartered in London, United Kingdom and have a midsize team. Their services include BI & big data consulting & SI, cloud consulting & SI, custom software development, mobile app development, and more.

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    Industries

  • 21
    (4 Reviews) 4.8
    • Timeliness

      4.8
    • Service Excellence

      4.8
    • Value

      4.6
    • Would Recommend

      4.8
    • $5,000+
    • 50 - 249 employees
    • London, United Kingdom

    Magicforce is a CRM consulting and SI company founded in 2019. Their small team is located in London, United Kingdom and L'viv, Ukraine. Their services include CRM consulting and SI.

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    Industries

  • 22
    (27 Reviews) 4.8
    • Timeliness

      4.8
    • Service Excellence

      4.8
    • Value

      4.6
    • Would Recommend

      4.8
    • $25,000+
    • 250 - 999 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. 
     

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    Clients

    • BNP Paribas
    • AXA Insurance
    • Santander
    • Danone

    Industries

  • 23
    (11 Reviews) 5.0
    • Timeliness

      4.8
    • Service Excellence

      5.0
    • Value

      4.9
    • Would Recommend

      5.0
    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom

    Texaport is an established and reputable managed service provider with a strong focus on security and customer service excellence. Texaport empowers organizations with comprehensive managed services that combine exceptional customer service, strategic digital transformation, and robust security solutions.

    Founded in 2012, Texaport has been providing IT solutions, Consultancy, and Cybersecurity to clients throughout the UK and across the globe.

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    Industries

  • 24
    (11 Reviews) 5.0
    • Timeliness

      4.9
    • Service Excellence

      5.0
    • Value

      4.9
    • Would Recommend

      5.0
    • $5,000+
    • 250 - 999 employees
    • London, United Kingdom

    Coders Dev is a web design and mobile app development company based in London with offices in Singapore and Abu Dhabi, U.A.E. The company, founded in 2010, has more than 500 employees and provides web development and AI services. Coders Dev serves small and larger-sized companies in the health care & medical, hospitality & leisure, consumer products & services, financial services, gaming, telecommunications, automotive, manufacturing, and e-commerce industries. 

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    Clients

    • British Telecom
    • eBay
    • Mannatech
    • Spirit Airlines

    Industries

  • 25
    (33 Reviews) 4.9
    • Timeliness

      4.8
    • Service Excellence

      4.9
    • Value

      4.7
    • Would Recommend

      4.9
    • $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.

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    Clients

    • HughesNet
    • Johnson & Johnson
    • PayPal
    • CocaCola

    Industries

  • 26
    (15 Reviews) 4.6
    • Timeliness

      4.6
    • Service Excellence

      4.6
    • Value

      4.3
    • Would Recommend

      4.7
    • $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.

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    Industries

  • 27
    (3 Reviews) 5.0
    • Timeliness

      4.7
    • Service Excellence

      5.0
    • Value

      5.0
    • Would Recommend

      5.0
    • $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.

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    Industries

  • 28
    (13 Reviews) 5.0
    • Timeliness

      5.0
    • Service Excellence

      5.0
    • Value

      5.0
    • Would Recommend

      5.0
    • $10,000+
    • 50 - 249 employees
    • London, United Kingdom

    CHILDISH.AI is an AI consulting firm founded in 2018. With offices in Sofia and London, they bring together a team of experts with technical and scientific backgrounds and deep industry expertise in healthcare, banking, insurance, and fintech. Their goal is to help organizations utilize AI to accelerate their growth and provide them with a competitive advantage.

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    Industries

  • 29
    (6 Reviews) 5.0
    • Timeliness

      4.8
    • Service Excellence

      5.0
    • Value

      4.9
    • Would Recommend

      5.0
    • $5,000+
    • 10 - 49 employees
    • London, United Kingdom
    High Digital Limited is a web development firm established in 2017. Their small team is located in London, United Kingdom. Their services include web development, marketing strategy, web design, ux/ui design, and more.
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    Clients

    • ARCH Emerging Markets
    • OneNineFive by Agent3
    • The Marketing Practice
    • Drop Secure

    Industries

  • 30
    (9 Reviews) 4.9
    • Timeliness

      4.9
    • Service Excellence

      4.9
    • Value

      4.8
    • Would Recommend

      4.9
    • $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. 

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    Clients

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

    Industries

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