Company lists · Data refreshed September 2026

Top 25 Multi-sector enterprises based in London, United Kingdom

Name: Multi-sector enterprises based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 13, 2026 183 companies tracked

RevenueBase identified 183 multi-sector enterprises headquartered in London, United Kingdom as of September 2026 and tracks 2,795 professional contacts across them, including 880 with verified work emails and 144 with mobile numbers. London is the largest hub.

This list covers multi-sector enterprises headquartered in London, 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 13, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 13, 2026 86% judged on-target in blind review

183Companies

2,795Contacts tracked

880Verified emails

144Mobile numbers

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The 25 largest multi-sector enterprises based in London, United Kingdom

Ranked by team size

Top 25 of 183 multi-sector enterprises based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 13, 2026. RevenueBase Smart Search rates how each company's information relates to multi-sector enterprises: 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	Alten LTD - UK	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	10001+	529 contacts →
	Partial evidence “We are a leading Engineering and IT consultancy operating across all sectors in 30 different countries.” Source: RevenueBase Database · checked Sep 13, 2026
2	STEER	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	524 contacts →
	Indirect evidence “Complex challenges.” Source: RevenueBase Database · checked Sep 13, 2026
3	Hirexa Solutions	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	377 contacts →
	Indirect evidence “Hirexa Solutions is a leading group of companies committed to delivering exceptional services to Fortune 500 clients worldwide.” Source: RevenueBase Database · checked Sep 13, 2026
4	IBU	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1,001-5,000	139 contacts →
	Indirect evidence “We are the most trusted consulting & Information Technology service partner, who has been thriving hard to deliver customer-centric and proven global competence to our clients all…” Source: RevenueBase Database · checked Sep 13, 2026
5	Baseel Partners	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	1,001-5,000	78 contacts →
	Indirect evidence “We offer a broad portfolio of IT and consulting services covering Governance and Strategy, Cloud, Data, Cybersecurity, Infrastructure and Applications, Managed IT and Security.” Source: RevenueBase Database · checked Sep 13, 2026
6	ALDIA	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	73 contacts →
	Indirect evidence “ALDIA is an international consulting firm specializing in IT & Engineering, dedicated to driving digital transformation and innovation.” Source: RevenueBase Database · checked Sep 13, 2026
7	Mansion House Consulting	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	41 contacts →
	Partial evidence “Mansion House Consulting (MHC) is an international business and technology Consultancy focused exclusively on the Financial Services sector.” Source: RevenueBase Database · checked Sep 13, 2026
8	Nexucon Consultancy Services PVT LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	38 contacts →
	Indirect evidence “Nexucon is a global firm that offers technology consulting and services to clients from diverse industries.” Source: RevenueBase Database · checked Sep 13, 2026
9	HP Infosystem, LLC	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	35 contacts →
	Indirect evidence “HP Infosystem is a comprehensive consulting and IT Services provider of absolute tech-business solutions having strong expertise and extensive technical skills with global…” Source: RevenueBase Database · checked Sep 13, 2026
10	Touchstone Group LTD	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	34 contacts →
	Indirect evidence “Incorporated in 1982, Touchstone Group is one of the UK's leading IT Services Group, solving real business issues for its clients.” Source: RevenueBase Database · checked Sep 13, 2026
11	London Town Group Of Companies	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	32 contacts →
	Partial evidence “London Town Group of Companies is a private sector corporation focussed on cutting-edge strategic and operational performance in four main pillars - Real Estate, Natural…” Source: RevenueBase Database · checked Sep 13, 2026
12	The S&a Transform Group	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	27 contacts →
	Indirect evidence “Established in 2009, The S&A Transform Group,(formerly known as The Strategy & Architecture Group) is a leading provider of Business, Technology & Digital Consulting, Solutions…” Source: RevenueBase Database · checked Sep 13, 2026
13	NTT Data Uk&i	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	n/a	22 contacts →
	Indirect evidence “NTT DATA, Inc.” Source: RevenueBase Database · checked Sep 13, 2026
14	RND Systems Integration	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	21 contacts →
	Indirect evidence “RnD Systems Integration is an IT consultancy based in, London.” Source: RevenueBase Database · checked Sep 13, 2026
15	Logica Soft Limited	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	20 contacts →
	Indirect evidence “Logica Soft Ltd is innovative global ISO 9001:2015 certified IT Company, unique provider of IT Consulting Services / Solutions.” Source: RevenueBase Database · checked Sep 13, 2026
16	Cedar Consulting NOW Version 1	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	15 contacts →
	Indirect evidence “Cedar Consulting (Cedar) provides Application, Business, Technology and Training consulting services on a global basis, with offices in the United Kingdom, Switzerland, Australia…” Source: RevenueBase Database · checked Sep 13, 2026
17	TID Global	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	15 contacts →
	Indirect evidence “TID is an amalgamation of several businesses that service a number of major industrial titans, from construction, automation, aerospace and supply chain, we now offer a complete…” Source: RevenueBase Database · checked Sep 13, 2026
18	Reef Origin	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	14 contacts →
	Indirect evidence “Core Areas- Real estate & knowledge infrastructure - Digital & clean energy systems - Life sciences, research & innovation hubs - Logistics, automation & advanced manufacturing -…” Source: RevenueBase Database · checked Sep 13, 2026
19	Itpm Consulting	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	14 contacts →
	Indirect evidence “Change.” Source: RevenueBase Database · checked Sep 13, 2026
20	The Pickstock Group	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	201-500	12 contacts →
	Indirect evidence “The Pickstock Group is an international property and food processing group of companies with a sales revenue in excess of £200 million.” Source: RevenueBase Database · checked Sep 13, 2026
21	Iqberry	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	10 contacts →
	Partial evidence “iQberry helps enterprises transform and modernise their business through technology.” Source: RevenueBase Database · checked Sep 13, 2026
22	MTJ Global	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	501-1,000	9 contacts →
	Indirect evidence “Founded in 1951 we have come a long way from our humble beginnings as a Spice Trader in the South Coast of Sri Lanka.” Source: RevenueBase Database · checked Sep 13, 2026
23	Ibrs Group Previously I.B.R.S. PLC	Indirect evidence	London, United KingdomHQ checked Sep 13, 2026	51-200	8 contacts →
	Indirect evidence “IBRS is a management consulting, technology consulting and outsourcing company with headquarters in the United Kingdom.” Source: RevenueBase Database · checked Sep 13, 2026
24	Leela Consultancy Limited	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	1-10	8 contacts →
	Partial evidence “Leela Consultancy is a UK-based organisation which will be assisting clients in a myriad of industry sectors at home, elsewhere in Europe and beyond.” Source: RevenueBase Database · checked Sep 13, 2026
25	Meghdhara	Partial evidence	London, United KingdomHQ checked Sep 13, 2026	11-50	7 contacts →
	Partial evidence “MEGHDHARA : One Solution Meghdhara is a multi-service company with a focus to provide innovative and value-based services.” Source: RevenueBase Database · checked Sep 13, 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: multi-sector enterprises. 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 multi-sector enterprises.
Partial evidence: Its own public description names part of multi-sector enterprises, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name multi-sector enterprises. 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 183 multi-sector enterprises based in London, United Kingdom

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Multi-sector enterprises based in London, United Kingdom at a glance

As of Sep 13, 2026

31.5%Verified-email coverage

5.2%Mobile-number coverage

15.3Average contacts per company

11-50Median size (employees)

35.0%Largest-city concentration · London

Sep 13, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 15.0d

6950–30

17731–60

661–90

090–180

2180+

Company record updated

Median 67.0d

00–30

1,04831–60

1,28861–90

30890–180

151180+

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 multi-sector enterprises, 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 London, United Kingdom whose own description of what they do matches “multi-sector enterprises”. 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 multi-sector enterprises), 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 multi-sector enterprises, and records with no verified work email. Companies headquartered outside London 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, 880 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 13, 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.

Multi-sector enterprises by metro in the United Kingdom

Multi-sector enterprises in London64

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 multi-sector enterprises, 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 multi-sector enterprises are there based in London, United Kingdom?

RevenueBase identified 183 multi-sector enterprises headquartered in London, 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?

Alten LTD - UK, headquartered in London, tops this list with the largest team on record.

Which city has the most multi-sector enterprises?

London leads with 64 headquartered companies, followed by Manchester (6) and Glasgow (5).

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 880 verified decision-maker contacts tracked across these 183 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 13, 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.