Company lists · Data refreshed September 2026

Top 25 Digital transformation companies based in the United Kingdom

Name: Digital transformation companies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 8,112 companies tracked

RevenueBase identified 8,112 digital transformation companies headquartered in the United Kingdom as of September 2026 and tracks 506,864 professional contacts across them, including 129,546 with verified work emails and 34,583 with mobile numbers. London is the largest hub.

This list covers digital transformation companies headquartered in the United Kingdom, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 1, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

8,112Companies

506,864Contacts tracked

129,546Verified emails

34,583Mobile numbers

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The 25 largest digital transformation companies based in the United Kingdom

Ranked by team size

Top 25 of 8,112 digital transformation companies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to digital transformation companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Tech Mahindra	Strong evidence	Milton Keynes, United Kingdom	10001+	138,625 contacts →
	Strong evidence “Tech Mahindra offers technology consulting and digital solutions to global enterprises across industries, enabling transformative scale at unparalleled speed.” Source: RevenueBase Database · checked Sep 1, 2026
2	WNS	Partial evidence	London, United Kingdom	10001+	46,619 contacts →
	Partial evidence “WNS, part of Capgemini, is a global Agentic AI-powered intelligent operations and transformation company.” Source: RevenueBase Database · checked Sep 1, 2026
3	Mphasis	Indirect evidence	London, United Kingdom	10001+	43,740 contacts →
	Indirect evidence “At Mphasis, engineering has been in our DNA since inception.” Source: RevenueBase Database · checked Sep 1, 2026
4	Sopra Steria	Partial evidence	Edinburgh, United Kingdom	10001+	37,387 contacts →
	Partial evidence “Sopra Steria, a major Tech player in Europe with employees in nearly 30 countries, is recognised for its consulting, digital services and solutions.” Source: RevenueBase Database · checked Sep 1, 2026
5	Persistent Systems	Partial evidence	Chertsey, United Kingdom	10001+	27,186 contacts →
	Partial evidence “We are an AI-led, platform-driven Digital Engineering and Enterprise Modernization partner, combining deep technical expertise and industry experience to help our clients…” Source: RevenueBase Database · checked Sep 1, 2026
6	ITC Infotech	Indirect evidence	London, United Kingdom	10001+	16,896 contacts →
	Indirect evidence “ITC Infotech is a global technology solution and services leader providing business-friendly solutions, that enable future-readiness for clients.” Source: RevenueBase Database · checked Sep 1, 2026
7	REPLY	Partial evidence	London, United Kingdom	10001+	3,778 contacts →
	Partial evidence “Reply [EXM, STAR: REY] specialises in the design and implementation of solutions based on new communication channels and digital media.” Source: RevenueBase Database · checked Sep 1, 2026
8	Andersen LAB	Indirect evidence	London, United Kingdom	1,001-5,000	3,609 contacts →
	Indirect evidence “Andersen – your global software development partner Andersen is a global software development company with over 18 years of experience supporting businesses worldwide in their…” Source: RevenueBase Database · checked Sep 1, 2026
9	Williams LEA	Indirect evidence	London, United Kingdom	10001+	3,281 contacts →
	Indirect evidence “Williams Lea is the leading global provider of tech-enabled business and marketing services helping clients manage and transform processes through resilient, scalable 24/7…” Source: RevenueBase Database · checked Sep 1, 2026
10	Ensono	Indirect evidence	Staines-Upon-Thames, United Kingdom	1,001-5,000	3,246 contacts →
	Indirect evidence “Ensono is an expert technology adviser and managed service provider.” Source: RevenueBase Database · checked Sep 1, 2026
11	Version 1	Strong evidence	Newcastle Upon Tyne, United Kingdom	1,001-5,000	3,198 contacts →
	Strong evidence “Version 1 is a leader in AI and digital transformation, partnering strategically with global organisations to transform and adopt technology and drive innovation in a responsible…” Source: RevenueBase Database · checked Sep 1, 2026
12	Kainos	Indirect evidence	Derry, United Kingdom	1,001-5,000	2,956 contacts →
	Indirect evidence “At Kainos we use technology to solve real problems for our customers, overcome big challenges for businesses, and make people’s lives easier.” Source: RevenueBase Database · checked Sep 1, 2026
13	Kaartech	Partial evidence	Huddersfield, United Kingdom	1,001-5,000	2,519 contacts →
	Partial evidence “We are a global leader in technology solutions, empowering businesses to thrive in a digital world through innovation, expertise, and unparalleled service.” Source: RevenueBase Database · checked Sep 1, 2026
14	Gspann Technologies, INC	Indirect evidence	London, United Kingdom	1,001-5,000	1,874 contacts →
	Indirect evidence “GSPANN is a US-based consulting services provider focused on implementations in Enterprise Content Management (ECM), Business Intelligence & Mobile Solutioning initiatives.” Source: RevenueBase Database · checked Sep 1, 2026
15	Sword Group	Strong evidence	Aberdeen, United Kingdom	1,001-5,000	1,747 contacts →
	Strong evidence “Sword is a leader in data insights, digital transformation and technology services with a substantial reputation in complex IT, business projects and mission critical operations…” Source: RevenueBase Database · checked Sep 1, 2026
16	Zühlke Group	Partial evidence	London, United Kingdom	1,001-5,000	1,580 contacts →
	Partial evidence “Zühlke is a global transformation partner, with engineering and innovation in our DNA.” Source: RevenueBase Database · checked Sep 1, 2026
17	BBD	Indirect evidence	London, United Kingdom	1,001-5,000	1,220 contacts →
	Indirect evidence “Welcome to BBD – where experience, innovation and software engineering excellence come together.” Source: RevenueBase Database · checked Sep 1, 2026
18	Puresoftware LTD	Partial evidence	Court, United Kingdom	1,001-5,000	1,186 contacts →
	Partial evidence “PureSoftware, a wholly owned subsidiary of Happiest Minds, is a global software products and digital services company.” Source: RevenueBase Database · checked Sep 1, 2026
19	Genisys Group	Indirect evidence	London, United Kingdom	1,001-5,000	1,146 contacts →
	Indirect evidence “Genisys Group is a new age global information technology and business process services company.” Source: RevenueBase Database · checked Sep 1, 2026
20	BJSS	Indirect evidence	Nottingham, United Kingdom	1,001-5,000	1,076 contacts →
	Indirect evidence “BJSS is an award-winning technology and engineering consultancy for business.” Source: RevenueBase Database · checked Sep 1, 2026
21	And Digital	Partial evidence	London, United Kingdom	1,001-5,000	1,048 contacts →
	Partial evidence “AND Digital is on a mission to close the world’s digital skills gap.” Source: RevenueBase Database · checked Sep 1, 2026
22	First Derivative	Indirect evidence	Newry, United Kingdom	1,001-5,000	1,022 contacts →
	Indirect evidence “First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward.” Source: RevenueBase Database · checked Sep 1, 2026
23	Advania UK	Indirect evidence	London, United Kingdom	1,001-5,000	905 contacts →
	Indirect evidence “We empower people to create sustainable value with the clever use of technology.” Source: RevenueBase Database · checked Sep 1, 2026
24	Sada, An Insight Company	Partial evidence	Poole, United Kingdom	10001+	872 contacts →
	Partial evidence “Insight is a Fortune 500 global Solutions Integrator helping organizations accelerate their digital journey and maximize the value of technology.” Source: RevenueBase Database · checked Sep 1, 2026
25	Nasstar	Indirect evidence	Wakefield, United Kingdom	1,001-5,000	841 contacts →
	Indirect evidence “Complexity isn’t the enemy.” Source: RevenueBase Database · checked Sep 1, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: digital transformation companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names digital transformation companies.
Partial evidence: Its own public description names part of digital transformation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name digital transformation companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 8,112 digital transformation companies based in the United Kingdom

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Digital transformation companies based in the United Kingdom at a glance

As of Sep 1, 2026

25.6%Verified-email coverage

6.8%Mobile-number coverage

62.5Average contacts per company

1-10Median size (employees)

43.9%Largest-city concentration · London

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

4,660

11-50

2,224

51-200

790

201-500

188

501-1,000

1,001-5,000

10001+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among digital transformation companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in the United Kingdom whose own description of what they do matches “digital transformation companies”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names digital transformation companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among digital transformation companies, and records with no verified work email. Companies headquartered outside United Kingdom are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 129,546 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 1, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Digital transformation companies by metro

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names digital transformation companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many digital transformation companies are there based in the United Kingdom?

RevenueBase identified 8,112 digital transformation companies headquartered in the United Kingdom as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Tech Mahindra, headquartered in Milton Keynes, tops this list with the largest team on record.

Which city has the most digital transformation companies?

London leads with 3560 headquartered companies, followed by Manchester (233) and Birmingham (137).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 129,546 verified decision-maker contacts tracked across these 8,112 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 1, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.