Company lists · Data refreshed September 2026

Top 25 Enterprise efficiency consultants based in the United Kingdom

Name: Enterprise efficiency consultants based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 4,638 companies tracked

RevenueBase identified 4,638 enterprise efficiency consultants headquartered in the United Kingdom as of September 2026 and tracks 35,166 professional contacts across them, including 11,647 with verified work emails and 2,366 with mobile numbers. London is the largest hub.

This list covers enterprise efficiency consultants 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 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

4,638Companies

35,166Contacts tracked

11,647Verified emails

2,366Mobile numbers

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The 25 largest enterprise efficiency consultants based in the United Kingdom

Ranked by team size

Top 25 of 4,638 enterprise efficiency consultants based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to enterprise efficiency consultants: 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	Baringa	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1,001-5,000	2,179 contacts →
	Indirect evidence “Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Source: RevenueBase Database · checked Sep 29, 2026
2	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
3	EIC Partnership	Indirect evidence	Redditch, United KingdomHQ checked Sep 29, 2026	51-200	316 contacts →
	Indirect evidence “EIC Partnership: A Legacy of Expertise, A Commitment to Sustainability With origins dating back to 1975, EIC has cultivated nearly 50 years of distinguished service in energy and…” Source: RevenueBase Database · checked Sep 29, 2026
4	Gate ONE	Indirect evidence	King's Cross, United KingdomHQ checked Sep 29, 2026	201-500	281 contacts →
	Indirect evidence “Most organisations commit to bold growth ambitions but aren’t set up to deliver them.” Source: RevenueBase Database · checked Sep 29, 2026
5	Elixirr	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	501-1,000	275 contacts →
	Indirect evidence “An award-winning global consulting firm working with clients across a diverse range of markets, industries and geographies.” Source: RevenueBase Database · checked Sep 29, 2026
6	Moorhouse B Corp Certified	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	247 contacts →
	Indirect evidence “We’re a dynamic consulting firm, focused on delivering change.” Source: RevenueBase Database · checked Sep 29, 2026
7	Percipere	Strong evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	245 contacts →
	Strong evidence “Percipere is a niche global consultancy, partnering companies in their evolution towards greater operational efficiency and profitability.” Source: RevenueBase Database · checked Sep 29, 2026
8	Albany Beck	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	240 contacts →
	Indirect evidence “Albany Beck is a client-first consulting firm helping financial services organisations deliver complex change and build capability, not dependency.” Source: RevenueBase Database · checked Sep 29, 2026
9	Fusion Global Business Solutions	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	219 contacts →
	Indirect evidence “As a global leader in service management, we help businesses transform their operations with data-driven insights, scalable digital solutions, and measurable results.” Source: RevenueBase Database · checked Sep 29, 2026
10	Codestone Group	Indirect evidence	Poole, United KingdomHQ checked Sep 29, 2026	201-500	210 contacts →
	Indirect evidence “WINNERS!” Source: RevenueBase Database · checked Sep 29, 2026
11	Clarify	Indirect evidence	Theale, United KingdomHQ checked Sep 29, 2026	51-200	191 contacts →
	Indirect evidence “Clarify helps global Technology companies achieve sustained and significant commercial success.” Source: RevenueBase Database · checked Sep 29, 2026
12	Azurian	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	178 contacts →
	Indirect evidence “The future has never moved this fast.” Source: RevenueBase Database · checked Sep 29, 2026
13	Interex Group	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	160 contacts →
	Indirect evidence “InterEx Group is becoming the strategic partner of choice for organizations undergoing digital, business, and technology transformation.” Source: RevenueBase Database · checked Sep 29, 2026
14	Sysdoc	Indirect evidence	London (uk), United KingdomHQ checked Sep 29, 2026	51-200	142 contacts →
	Indirect evidence “At Sysdoc we exist to help our clients to transform, adapt and operate in order for them to achieve their ambitions, and to provide our own people with opportunities that allow…” Source: RevenueBase Database · checked Sep 29, 2026
15	ORG	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	1,001-5,000	139 contacts →
	Indirect evidence “We believe that change is an opportunity to thrive.” Source: RevenueBase Database · checked Sep 29, 2026
16	Veran Performance	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	134 contacts →
	Partial evidence “Winners of the UKOUG Business Transformation Advisory Partner of the Year Award 2025 Veran Performance is an advisory consultancy specialising in HR, Payroll, Procurement and…” Source: RevenueBase Database · checked Sep 29, 2026
17	Squarcle	Indirect evidence	Bristol, United KingdomHQ checked Sep 29, 2026	51-200	129 contacts →
	Indirect evidence “Squarcle is a procurement, supply chain and digital specialist which sits at the centre of transformation, with a skillset which has proven relevance in any market characterised…” Source: RevenueBase Database · checked Sep 29, 2026
18	Praesto Consulting	Partial evidence	Staines-upon-thames, United KingdomHQ checked Sep 29, 2026	201-500	125 contacts →
	Partial evidence “Technology consultancy providing expertise to complex IT programs.” Source: RevenueBase Database · checked Sep 29, 2026
19	AMBER	Partial evidence	Cardiff, United KingdomHQ checked Sep 29, 2026	51-200	124 contacts →
	Partial evidence “We are an award-winning energy consultancy and certified B Corp™.” Source: RevenueBase Database · checked Sep 29, 2026
20	Tritility	Partial evidence	Jarrow, United KingdomHQ checked Sep 29, 2026	51-200	122 contacts →
	Partial evidence “Tritility is a UK business energy consultancy helping organisations reduce energy and overhead costs through smarter electricity, gas and water procurement.” Source: RevenueBase Database · checked Sep 29, 2026
21	Infosight Consulting	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	201-500	121 contacts →
	Partial evidence “At Infosight, we architect the future of enterprises by engineering your digital core and activating the intelligence within.” Source: RevenueBase Database · checked Sep 29, 2026
22	Glue Reply	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	118 contacts →
	Partial evidence “WHO WE ARE Glue Reply is a business consultancy that strives to help its clients achieve their future potential by developing solutions that often for the first time align IT…” Source: RevenueBase Database · checked Sep 29, 2026
23	Chartwell	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	117 contacts →
	Partial evidence “Chartwell is a global operations consultancy with offices in London, Boston and Hamburg.” Source: RevenueBase Database · checked Sep 29, 2026
24	Cognition	Indirect evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	117 contacts →
	Indirect evidence “We are practitioners with centuries of combined expertise in enhancing organizations with innovative, human-centric solutions that create substantial and sustainable value by…” Source: RevenueBase Database · checked Sep 29, 2026
25	Oaklin	Partial evidence	London, United KingdomHQ checked Sep 29, 2026	51-200	115 contacts →
	Partial evidence “Oaklin is an independent management consultancy.” 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: enterprise efficiency consultants. 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 enterprise efficiency consultants.
Partial evidence: Its own public description names part of enterprise efficiency consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name enterprise efficiency consultants. 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 4,638 enterprise efficiency consultants based in the United Kingdom

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Enterprise efficiency consultants based in the United Kingdom at a glance

As of Sep 29, 2026

33.1%Verified-email coverage

6.7%Mobile-number coverage

7.6Average contacts per company

1-10Median size (employees)

33.4%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

3,659

11-50

697

51-200

192

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 31.0d

4,8970–30

6,34131–60

36861–90

790–180

34180+

Company record updated

Median 84.0d

00–30

3,96831–60

13,99561–90

14,94090–180

2,263180+

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 enterprise efficiency consultants, 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 “enterprise efficiency consultants”. 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 enterprise efficiency consultants), 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 enterprise efficiency consultants, 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, 11,647 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.

Enterprise efficiency consultants 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 enterprise efficiency consultants, 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 enterprise efficiency consultants are there based in the United Kingdom?

RevenueBase identified 4,638 enterprise efficiency consultants 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?

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

Which city has the most enterprise efficiency consultants?

London leads with 1549 headquartered companies, followed by Manchester (105) and Bristol (66).

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 11,647 verified decision-maker contacts tracked across these 4,638 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.