Company lists · Data refreshed September 2026

Top 25 Operational technology consulting firms based in London, United Kingdom

Name: Operational technology consulting firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 506 companies tracked

RevenueBase identified 506 operational technology consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 7,339 professional contacts across them, including 2,784 with verified work emails. Across the United Kingdom, London is the largest hub for this category.

This list covers operational technology consulting firms 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 29, 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 29, 2026 86% judged on-target in blind review

506Companies

7,339Contacts tracked

2,784Verified emails

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The 25 largest operational technology consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 506 operational technology consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to operational technology consulting firms: 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	Emergn	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	501-1,000	351 contacts →
	Partial evidence “Emergn is a global technology and management consultancy built on a simple conviction: the only sustainable competitive advantage is the way you work.” Source: RevenueBase Database · checked Sep 29, 2026
2	Cartesian	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	302 contacts →
	Strong evidence “Cartesian is a specialist consulting firm focused on the global telecommunications, media, and technology industries and is now part of Bounteous, an AI services firm helping…” Source: RevenueBase Database · checked Sep 29, 2026
3	NEO Technology LTD	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	91 contacts →
	Indirect evidence “Organisations are looking at what they need to do to enable growth and efficiency, we show you the ROI and drive the reason to change.” Source: RevenueBase Database · checked Sep 29, 2026
4	Change Management Group	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	74 contacts →
	Indirect evidence “Whether complex transformation is required across your business or you are seeking support with a small project, we are here to help.” Source: RevenueBase Database · checked Sep 29, 2026
5	ALDIA	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	73 contacts →
	Partial evidence “ALDIA is an international consulting firm specializing in IT & Engineering, dedicated to driving digital transformation and innovation.” Source: RevenueBase Database · checked Sep 29, 2026
6	Axtrum Technologies	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	68 contacts →
	Indirect evidence “We don’t only deliver a change – We deliver a change that adds value and delivers business benefit that is real, tangible and measurable!” Source: RevenueBase Database · checked Sep 29, 2026
7	31 Green	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	63 contacts →
	Indirect evidence “At 31G, we know that developing a solution is just half the story.” Source: RevenueBase Database · checked Sep 29, 2026
8	Ziipline	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	59 contacts →
	Indirect evidence “We’re people-first and culture-obsessed.” Source: RevenueBase Database · checked Sep 29, 2026
9	Definia	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	53 contacts →
	Strong evidence “We’re a technology and transformation consulting partner that helps organisations accelerate change with confidence.” Source: RevenueBase Database · checked Sep 29, 2026
10	Marionete	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	53 contacts →
	Strong evidence “Marionete is a technology consulting firm that empowers organizations to design innovative data strategies, drive digital transformation, and build advanced digital platforms.” Source: RevenueBase Database · checked Sep 29, 2026
11	Aptitude Global	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	49 contacts →
	Partial evidence “Aptitude pairs specialists practitioners with proprietary software-delivering data, AI, and operational transformation at speed, with greater returns and enduring performance.” Source: RevenueBase Database · checked Sep 29, 2026
12	Icore LTD	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	46 contacts →
	Strong evidence “Founded in 1997, iCore is an independent IT Transformation consultancy, providing a pragmatic approach in helping organisations modernise their Technology Strategy and Operations…” Source: RevenueBase Database · checked Sep 29, 2026
13	Flock Associates	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	41 contacts →
	Indirect evidence “We elevate how your marketing operates.” Source: RevenueBase Database · checked Sep 29, 2026
14	JPSB	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	40 contacts →
	Partial evidence “JPSB Group is a global financial technology consultancy comprised of senior professionals, operating from locations in the UK, Canada, and the US.” Source: RevenueBase Database · checked Sep 29, 2026
15	Synapx	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	40 contacts →
	Partial evidence “Award-winning global consulting experts, blending top-tier consulting and development skills with a cross-functional team, including MVPs who are delivering cost-effective…” Source: RevenueBase Database · checked Sep 29, 2026
16	Nexucon Consultancy Services PVT LTD	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	38 contacts →
	Strong evidence “Nexucon is a global firm that offers technology consulting and services to clients from diverse industries.” Source: RevenueBase Database · checked Sep 29, 2026
17	Scalewise	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	38 contacts →
	Indirect evidence “ScaleWise helps ambitious B2B tech companies optimise their GTM strategy and secure the expertise needed to drive capital efficient growth.” Source: RevenueBase Database · checked Sep 29, 2026
18	Somo Global	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	38 contacts →
	Indirect evidence “Somo is now CI & T.” Source: RevenueBase Database · checked Sep 29, 2026
19	Decision Inc. UK	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	35 contacts →
	Indirect evidence “Decision Inc.” Source: RevenueBase Database · checked Sep 29, 2026
20	Tiberone	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	33 contacts →
	Indirect evidence “At Tiberone, we specialize in solving corporate IT problems by designing, building, and supporting solutions that drive results.” Source: RevenueBase Database · checked Sep 29, 2026
21	BBGC	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	32 contacts →
	Partial evidence “Business Benefits Global Consulting (BBGC) is a multinational consultancy firm with offices in Middle East, Asia, Europe and USA.” Source: RevenueBase Database · checked Sep 29, 2026
22	3h Partners	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	32 contacts →
	Partial evidence “3H Partners was founded in 2005, when consulting professionals and professors at leading European Universities and Business Schools joined forces to create a new kind of…” Source: RevenueBase Database · checked Sep 29, 2026
23	Cadence Innova	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	31 contacts →
	Indirect evidence “We are passionate about bringing positive transformational change that makes peoples’ lives better, communities more connected and enterprises more sustainably profitable.” Source: RevenueBase Database · checked Sep 29, 2026
24	3dec	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	30 contacts →
	Partial evidence “A new breed of digital technology consultancy.” Source: RevenueBase Database · checked Sep 29, 2026
25	Maple Networks	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	11-50	30 contacts →
	Indirect evidence “We’re the team that the IT leaders of tech-dependant organisations come to when they need to really shake things up, innovate (effectively), and tackle their transformational…” Source: RevenueBase Database · checked Sep 29, 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: operational technology consulting firms. 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 operational technology consulting firms.
Partial evidence: Its own public description names part of operational technology consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name operational technology consulting firms. 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 506 operational technology consulting firms based in London, United Kingdom

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Operational technology consulting firms based in London, United Kingdom at a glance

As of Sep 29, 2026

37.9%Verified-email coverage

14.5Average contacts per company

1-10Median size (employees)

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

311

11-50

133

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 506 companies.

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 operational technology consulting firms, 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 “operational technology consulting firms”. 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 operational technology consulting firms), 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 operational technology consulting firms, 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, 2,784 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 29, 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.

Operational technology consulting firms by metro in the United Kingdom

Operational technology consulting firms in Manchester36

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 operational technology consulting firms, 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 operational technology consulting firms are there based in London, United Kingdom?

RevenueBase identified 506 operational technology consulting firms 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?

Emergn, headquartered in London, tops this list with the largest team on record.

Which city in the United Kingdom has the most operational technology consulting firms?

London leads the United Kingdom with 506 headquartered companies, followed by Manchester (36) and Aberdeen (19).

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 2,784 verified decision-maker contacts tracked across these 506 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 29, 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.