Company lists · Data refreshed September 2026

Top 25 Operational efficiency consultants based in London, United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 704 companies tracked

RevenueBase identified 704 operational efficiency consultants headquartered in London, United Kingdom as of September 2026 and tracks 7,582 professional contacts across them, including 1,998 with verified work emails. London is the largest hub.

This list covers operational efficiency consultants 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 20, 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 20, 2026 86% judged on-target in blind review

704Companies

7,582Contacts tracked

1,998Verified emails

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The 25 largest operational efficiency consultants based in London, United Kingdom

Ranked by team size

Top 25 of 704 operational efficiency consultants based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to operational 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	Efficio	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1,001-5,000	1,304 contacts →
	Indirect evidence “Efficio is a global leader in procurement and supply chain management and transformation.” Source: RevenueBase Database · checked Sep 20, 2026
2	Percipere	Strong evidence	London, United KingdomHQ checked Sep 20, 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 20, 2026
3	Chartwell	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	117 contacts →
	Strong evidence “Chartwell is a global operations consultancy with offices in London, Boston and Hamburg.” Source: RevenueBase Database · checked Sep 20, 2026
4	Growth HUB	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	85 contacts →
	Partial evidence “Growth Hub embeds operational teams inside professional services firms.” Source: RevenueBase Database · checked Sep 20, 2026
5	Proservartner	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	84 contacts →
	Indirect evidence “Proservartner is an international consulting firm.” Source: RevenueBase Database · checked Sep 20, 2026
6	Simpler Consulting, An IBM Company	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	n/a	84 contacts →
	Indirect evidence “With Simpler as your lean-transformation partner, you can achieve long-term success.” Source: RevenueBase Database · checked Sep 20, 2026
7	PEN	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	76 contacts →
	Strong evidence “We’re a specialist, management consultancy, focusing on; Customer Experience, Operational Excellence and Change Delivery, dedicated to helping our clients create real, positive…” Source: RevenueBase Database · checked Sep 20, 2026
8	Change Management Group	Indirect evidence	London, United KingdomHQ checked Sep 20, 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 20, 2026
9	Ziipline	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	59 contacts →
	Indirect evidence “We’re people-first and culture-obsessed.” Source: RevenueBase Database · checked Sep 20, 2026
10	Redquadrant	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	51 contacts →
	Strong evidence “RedQuadrant is an exciting efficiency and transformation consultancy for the public sector.” Source: RevenueBase Database · checked Sep 20, 2026
11	Synapx	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	40 contacts →
	Indirect 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 20, 2026
12	Procurato	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	39 contacts →
	Indirect evidence “Procurato is a specialist management consulting firm with a focus on three key areas: Procurement and Supply Chain, Insurance, and Data analytics and AI.” Source: RevenueBase Database · checked Sep 20, 2026
13	Regency Grove Consultants	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	38 contacts →
	Indirect evidence “At Regency Grove we pride ourselves on providing each client with an exceptional standard of service to suit their specific needs and requirements.” Source: RevenueBase Database · checked Sep 20, 2026
14	Egremont Group	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	29 contacts →
	Partial evidence “Egremont Group is a globally recognised, award-winning consultancy that helps organisations achieve breakthrough transformation.” Source: RevenueBase Database · checked Sep 20, 2026
15	PRECA	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	28 contacts →
	Indirect evidence “PrECA: Procurement Excellence for Competitive Advantage We offer procurement consulting and outsourcing services to medium and large companies.” Source: RevenueBase Database · checked Sep 20, 2026
16	Technology Transformation Group	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	26 contacts →
	Indirect evidence “Every business is unique in its setup, processes, and goals.” Source: RevenueBase Database · checked Sep 20, 2026
17	Broadgate	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	23 contacts →
	Strong evidence “At Broadgate we are dedicated to helping organisations accelerate technology change to enable growth and deliver operational efficiencies.” Source: RevenueBase Database · checked Sep 20, 2026
18	Brookes Supply Chain Solutions	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	22 contacts →
	Indirect evidence “Brookes delivers a combination of Consulting and Best-of-Breed Technology in one, which sets us apart.” Source: RevenueBase Database · checked Sep 20, 2026
19	WARN	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	21 contacts →
	Indirect evidence “The Market Need: Unprecedented turbulence and rapid change demand a radical shift in how companies manage transformation and resource talent.” Source: RevenueBase Database · checked Sep 20, 2026
20	Voyager Solutions	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “Voyager Solutions provide business change and implementation support for process, people and technology transformation programmes.” Source: RevenueBase Database · checked Sep 20, 2026
21	CI Projects	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “CI Projects helps businesses continuously improve by enabling the true convergence of people, processes and technology.” Source: RevenueBase Database · checked Sep 20, 2026
22	Consider Solutions	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	20 contacts →
	Partial evidence “Consider Solutions provide thought leadership, analytics, technology integration and best practice insight on the journey towards ‘World Class Finance & Operations’.” Source: RevenueBase Database · checked Sep 20, 2026
23	ANPRO	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	20 contacts →
	Indirect evidence “ANPRO is an international consulting group specializing in accelerated performance improvement.” Source: RevenueBase Database · checked Sep 20, 2026
24	Rishvi LTD	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	20 contacts →
	Partial evidence “Business Management Consultant and Expert” Source: RevenueBase Database · checked Sep 20, 2026
25	ACZEL	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	19 contacts →
	Partial evidence “Aczel is a management consultancy with a unique difference.” Source: RevenueBase Database · checked Sep 20, 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 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 operational efficiency consultants.
Partial evidence: Its own public description names part of operational efficiency consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name operational 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 704 operational efficiency consultants based in London, United Kingdom

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Operational efficiency consultants based in London, United Kingdom at a glance

As of Sep 20, 2026

26.4%Verified-email coverage

10.8Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

543

11-50

116

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 704 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 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 London, United Kingdom whose own description of what they do matches “operational 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 operational 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 operational efficiency consultants, 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, 1,998 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 20, 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 efficiency consultants by metro in the United Kingdom

Operational efficiency consultants in London704
Operational efficiency consultants in Manchester55
Operational efficiency consultants in Birmingham35
Operational efficiency consultants in Glasgow33
Operational efficiency consultants in Leeds32
Operational efficiency consultants in Edinburgh28
Operational efficiency consultants in Bristol27

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 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 operational efficiency consultants are there based in London, United Kingdom?

RevenueBase identified 704 operational efficiency consultants 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?

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

Which city has the most operational efficiency consultants?

London leads with 704 headquartered companies, followed by Manchester (55) and Birmingham (35).

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 1,998 verified decision-maker contacts tracked across these 704 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 20, 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.