Company lists · Data refreshed November 2026

Top 17 Performance improvement consulting services based in the United Kingdom

Name: Performance improvement consulting services based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 6,149 companies tracked

RevenueBase identified 6,149 company matches for performance improvement consulting services associated with the United Kingdom as of November 2026 and tracks 31,254 professional contacts across them, including 8,730 with verified work emails. London is the largest hub.

This list covers company matches for performance improvement consulting services 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 November 6, 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 Nov 6, 2026 How this list was built

6,149Companies

31,254Contacts tracked

8,730Verified emails

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The 17 largest performance improvement consulting services based in the United Kingdom

Ranked by team size

Top 17 of 6,149 company matches for performance improvement consulting services based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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	Delivery Associates	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	408 contacts →
	Exact match “We make change happen.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Elixirr	Exact match	London, United KingdomHQ recorded Nov 6, 2026	501-1,000	308 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 · Nov 6, 2026 · View company records in RevenueBase
3	Ethos Farm	Exact match	London & New York, United KingdomHQ recorded Nov 6, 2026	1,001-5,000	279 contacts →
	Exact match “Award-winning Customer Experience and Employee Experience consultancy with offices in London and New York.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Moorhouse B Corp Certified	Exact match	London, United KingdomHQ recorded Nov 6, 2026	201-500	253 contacts →
	Exact match “We’re a dynamic consulting firm, focused on delivering change.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	OIM	Exact match	Bath, United KingdomHQ recorded Nov 6, 2026	n/a	227 contacts →
	Exact match “OIM is dedicated to building competitive organisations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Clarify	Exact match	Theale, United KingdomHQ recorded Nov 6, 2026	51-200	181 contacts →
	Exact match “Clarify helps global Technology companies achieve sustained and significant commercial success.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Veran Performance	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	167 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 · Nov 6, 2026 · View company records in RevenueBase
8	The Berkeley Partnership	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	166 contacts →
	Exact match “Founded in 1990, The Berkeley Partnership is an independent management consultancy, specialising in business transformation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	EY Lane4	Exact match	Maidenhead, United KingdomHQ recorded Nov 6, 2026	501-1,000	153 contacts →
	Exact match “Building environments where high-performance is inevitable through a focus on leadership, learning and culture.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Squarcle	Exact match	Bristol, United KingdomHQ recorded Nov 6, 2026	51-200	141 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 · Nov 6, 2026 · View company records in RevenueBase
11	Athens	Exact match	London, United KingdomHQ recorded Nov 6, 2026	11-50	123 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 · Nov 6, 2026 · View company records in RevenueBase
12	Oaklin	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	121 contacts →
	Exact match “Oaklin is an independent management consultancy.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	Agencia	Exact match	Hessle, United KingdomHQ recorded Nov 6, 2026	11-50	102 contacts →
	Exact match “Agencia has been transforming organisations for over 20 years.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	PHMC	Exact match	Buxton, United KingdomHQ recorded Nov 6, 2026	n/a	101 contacts →
	Exact match “Freelance management consultancy, support business owners and their management teams.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Growth HUB	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	95 contacts →
	Exact match “Growth Hub embeds operational teams inside professional services firms.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Oxfordsm	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	94 contacts →
	Exact match “We blend capability and strategy to help client teams thrive, find and grow happier customers, and deliver profitable growth.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Valentia Partners	Exact match	London, United KingdomHQ recorded Nov 6, 2026	51-200	93 contacts →
	Exact match “Valentia Partners is a specialist Management Consulting firm.” Recorded in the RevenueBase company graph · Nov 6, 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 “performance improvement consulting services”. 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 17 of 6,149 performance improvement consulting services based in the United Kingdom

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Performance improvement consulting services based in the United Kingdom at a glance

As of Nov 6, 2026

27.9%Verified-email coverage

5.1Average contacts per company

1-10Median size (employees)

31.5%Largest-city concentration · London

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

5,017

11-50

782

51-200

130

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 6,149 companies.

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 “performance improvement consulting services” 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 8,730 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 November 6, 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.

Performance improvement consulting services 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 “performance improvement consulting services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many performance improvement consulting services are there based in the United Kingdom?

RevenueBase identified 6,149 company matches for performance improvement consulting services associated with the United Kingdom as of November 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?

Delivery Associates tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most performance improvement consulting services?

London leads with 1940 company records, followed by Manchester (147) and Bristol (78).

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 8,730 professional contacts with verified work emails tracked across these 6,149 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 November 6, 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.