Company lists · Data refreshed September 2026

Top 24 Business operations consulting firms based in the United Kingdom

Name: Business operations consulting firms based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 23, 2026 6,387 companies tracked

RevenueBase identified 6,387 company matches for business operations consulting firms associated with the United Kingdom as of September 2026 and tracks 56,744 professional contacts across them, including 20,348 with verified work emails and 5,510 with mobile numbers. London is the largest hub.

This list covers company matches for business operations consulting firms associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 23, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 23, 2026 How this list was built

6,387Companies

56,744Contacts tracked

20,348Verified emails

5,510Mobile numbers

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The 24 largest business operations consulting firms based in the United Kingdom

Ranked by team size

Top 24 of 6,387 company matches for business operations consulting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 23, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Ey-Parthenon	Exact match	London, United KingdomHQ recorded Sep 23, 2026	10001+	17,070 contacts →
	Exact match “Our unique combination of transformative strategy, transactions and corporate finance delivers real-world value – solutions that work in practice, not just on paper.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
2	Unipart	Exact match	Oxford, United KingdomHQ recorded Sep 23, 2026	10001+	3,205 contacts →
	Exact match “Unipart is a supply chain performance improvement partner, delivering efficiency, resilience, and sustainability across multiple sectors.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
3	Baringa	Exact match	London, United KingdomHQ recorded Sep 23, 2026	1,001-5,000	2,179 contacts →
	Exact match “Baringa is a global consulting firm that helps leaders drive meaningful change and create value.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
4	Efficio	Exact match	London, United KingdomHQ recorded Sep 23, 2026	1,001-5,000	1,304 contacts →
	Exact match “Efficio is a global leader in procurement and supply chain management and transformation.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
5	Oc&c Strategy Consultants	Exact match	London, United KingdomHQ recorded Sep 23, 2026	501-1,000	1,011 contacts →
	Exact match “At OC & C Strategy Consultants we have more than 35 years of experience at unpicking the most complex business challenges with simple, uncommon sense™.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
6	Cartesian	Exact match	London, United KingdomHQ recorded Sep 23, 2026	201-500	302 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
7	Quantuma	Exact match	London, United KingdomHQ recorded Sep 23, 2026	201-500	277 contacts →
	Exact match “Quantuma is a leading business advisory firm which works with businesses at the key milestones.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
8	Elixirr	Exact match	London, United KingdomHQ recorded Sep 23, 2026	501-1,000	275 contacts →
	Exact match “An award-winning global consulting firm working with clients across a diverse range of markets, industries and geographies.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
9	Percipere	Exact match	London, United KingdomHQ recorded Sep 23, 2026	201-500	245 contacts →
	Exact match “Percipere is a niche global consultancy, partnering companies in their evolution towards greater operational efficiency and profitability.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
10	Quantzig	Exact match	London, United KingdomHQ recorded Sep 23, 2026	201-500	216 contacts →
	Exact match “Quantzig is at the forefront of partnering with businesses to help them unlock transformative value through analytics solutions.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
11	Clarify	Exact match	Theale, United KingdomHQ recorded Sep 23, 2026	51-200	191 contacts →
	Exact match “Clarify helps global Technology companies achieve sustained and significant commercial success.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
12	Sysdoc	Exact match	London (uk), United KingdomHQ recorded Sep 23, 2026	51-200	142 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
13	ORG	Exact match	London, United KingdomHQ recorded Sep 23, 2026	1,001-5,000	139 contacts →
	Exact match “We believe that change is an opportunity to thrive.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
14	Veran Performance	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	134 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
15	Squarcle	Exact match	Bristol, United KingdomHQ recorded Sep 23, 2026	51-200	129 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
16	Athens	Exact match	London, United KingdomHQ recorded Sep 23, 2026	11-50	122 contacts →
	Exact match “Athens helps clients make superior investment decisions and supports them to deliver value from these decisions through timely implementation.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
17	Chartwell	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	117 contacts →
	Exact match “Chartwell is a global operations consultancy with offices in London, Boston and Hamburg.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
18	Redrock Consulting	Exact match	Bristol, United KingdomHQ recorded Sep 23, 2026	51-200	115 contacts →
	Exact match “We are RedRock, a trusted delivery partner for digital, data and technology transformation.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
19	Isle Utilities	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	101 contacts →
	Exact match “Isle’s vision is to be the leading catalyst in water industry transformation through exceptional business insight, technology, and innovative solutions.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
20	K3 Capital Group	Exact match	Manchester, United KingdomHQ recorded Sep 23, 2026	501-1,000	97 contacts →
	Exact match “K3 Capital Group is a professional services firm providing advisory services to SMEs throughout the UK and overseas.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
21	OXYGY	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	96 contacts →
	Exact match “Oxygen + Synergy = OXYGY: a new breed of consulting company.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
22	Valentia Partners	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	94 contacts →
	Exact match “Valentia Partners is a specialist Management Consulting firm.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
23	Growth HUB	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	85 contacts →
	Exact match “Growth Hub embeds operational teams inside professional services firms.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase
24	Proservartner	Exact match	London, United KingdomHQ recorded Sep 23, 2026	51-200	84 contacts →
	Exact match “Proservartner is an international consulting firm.” Recorded in the RevenueBase company graph · Sep 23, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “business operations consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 24 of 6,387 business operations consulting firms based in the United Kingdom

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Business operations consulting firms based in the United Kingdom at a glance

As of Sep 23, 2026

35.9%Verified-email coverage

9.7%Mobile-number coverage

8.9Average contacts per company

1-10Median size (employees)

36.4%Largest-city concentration · London

Sep 23, 2026Page data refreshed

Companies by employee count

1-10

5,378

11-50

735

51-200

173

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 26.0d

14,9850–30

4,82931–60

34561–90

4090–180

149180+

Company record updated

Median 74.0d

00–30

13,20731–60

27,14761–90

13,51690–180

2,874180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “business operations consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 20,348 professional contacts with verified work emails across the full matched dataset. 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 23, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

Business operations consulting firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “business operations consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many business operations consulting firms are there based in the United Kingdom?

RevenueBase identified 6,387 company matches for business operations consulting firms associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Ey-Parthenon tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most business operations consulting firms?

London leads with 2322 company records, followed by Manchester (144) and Glasgow (76).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 20,348 professional contacts with verified work emails tracked across these 6,387 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 23, 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 SmartSearch, 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.