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Top Big Data & BI Companies in the UK

5 of 36 big data & BI companies ranked on evidence in the Q4 2026 edition.

Between them, the 36 best-ranked of these 37 big data & BI companies cover web development (28), web design (21), android (20) and iOS app (19). 36 of them have written a profile you can read before you get in touch.

TrustList ranking

Q4 2026 edition

5 of 36 big data & BI companies ranked on evidence held on 9 October 2026: client reviews, vetting, awards and facts each business states on its own website, which we read and date. Nobody pays to be placed.

Positions are fixed for the quarter; the next edition is due in January 2027.

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Only businesses that have told TrustList match a filter. Filters never change the order or a score.

  1. Also listed, not yet ranked. We hold nothing checkable on these yet that ranks them here: no client review, vetting, award, expert review, or fact stated on their own website (and on a place ranking, where they are based). They follow in order of their TrustList Score. How TrustList ranks · Get vetted, free
  2. Emstell Technology Consulting logo

    Mobile App Development · ERP Software Development · Web Development

    Emstell Technology Consulting is a technology services company serving businesses and start-ups, with a strong presence in Kuwait.

  3. Gainsight logo

    Mobile App Development · Web Development · iOS App · Also in San Francisco

    Gainsight is a software company whose platform supports customer success and product teams.

  4. IHS Markit logo

    Web Development · Web Design · iOS App

    IHS Markit is an information and analytics company that supplies data and insight to organisations in major industries and markets.

    On record: Based in London

  5. Intelligent Business Strategies logo

    Web Development · Web Design · iOS App

    Intelligent Business Strategies is an IT analyst, consulting, research and education company that works independently of vendors. Its work centres on data management and analytics.

  6. Kazap Technologies LTD logo

    Consumer Products & Services · Financial Services · Business Services · Also in Wales and Wellington

    Kazap Technologies is a London technology consultancy with fourteen years of experience analysing business processes and building the software that fixes them.

    On record: Based in London

  7. Marionete logo

    Mobile App Development · Web Development · iOS App

    Marionete is a technology consultancy that builds data platforms and AI solutions. It works mainly in financial services, with a focus on banking and insurance.

  8. Opal Wave Solutions logo

    Web Development · Web Design · iOS App

    Opal Wave Solutions is a consultancy that specialises in enterprise performance management (EPM) and business intelligence.

  9. PredictX logo

    Web Development · Web Design · iOS App

    Travel and expense analytics platform that uses AI and predictive models to clean data and guide corporate travel programmes

  10. Profusion logo

    Web Development · Web Design · iOS App

    Profusion is a UK data and marketing services company. Its website now states that it has become part of Atombit, and it describes work in data, AI and CRM for businesses of…

  11. QuantumBlack logo

    IT Services · Software Development · Data Science

    QuantumBlack is a McKinsey company that helps organisations make decisions using data.

  12. Reed Business Information logo

    Web Development · Web Design · iOS App

    Reed Business Information, known as RBI, supplies business information, data and analytics to professionals in many large industries.

  13. Shapecast logo

    Web Development · IT Services · Software Development

    Shapecast supplies analytics products and services for business change.

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