Company lists · Data refreshed September 2026

Top 25 Customer success consulting firms based in the United Kingdom

Name: Customer success 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 3, 2026 1,286 companies tracked

RevenueBase identified 1,286 customer success consulting firms headquartered in the United Kingdom as of September 2026 and tracks 6,410 professional contacts across them, including 1,680 with verified work emails and 502 with mobile numbers. London is the largest hub.

This list covers customer success consulting firms 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 3, 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 RevenueBase Smart Search rating on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

1,286Companies

6,410Contacts tracked

1,680Verified emails

502Mobile numbers

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The 25 largest customer success consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 1,286 customer success consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 3, 2026. RevenueBase Smart Search rates how each company's information relates to customer success 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	Vertex Data Science	Partial evidence	London, United Kingdom	51-200	570 contacts →
	Partial evidence “Vertex is a leader in BPO and Customer Management Outsourcing, serving over 200 clients worldwide across many sectors.” Source: RevenueBase Database · checked Sep 3, 2026
2	Arvatoconnect	Partial evidence	Newcastle Upon Tyne, United Kingdom	501-1,000	538 contacts →
	Partial evidence “Your world is changing at lightning speed; new business models, new technologies, new competitors, and new customers.” Source: RevenueBase Database · checked Sep 3, 2026
3	Ethos Farm	Partial evidence	New York, United Kingdom	1,001-5,000	264 contacts →
	Partial evidence “Award-winning Customer Experience and Employee Experience consultancy with offices in London and New York.” Source: RevenueBase Database · checked Sep 3, 2026
4	EDIT	Indirect evidence	Bath, United Kingdom	51-200	224 contacts →
	Indirect evidence “Edit are future-focused data and technology experts.” Source: RevenueBase Database · checked Sep 3, 2026
5	Mantec	Partial evidence	London, United Kingdom	51-200	85 contacts →
	Partial evidence “Mantec, a member of Andersen Consulting, is a management consultancy with offices in Gothenburg, Stockholm, Oslo, Copenhagen, Helsinki and London.” Source: RevenueBase Database · checked Sep 3, 2026
6	Growth HUB	Indirect evidence	London, United Kingdom	51-200	84 contacts →
	Indirect evidence “At Growth Hub, we help organisations streamline processes, harness data effectively, and make informed decisions.” Source: RevenueBase Database · checked Sep 3, 2026
7	TAP CXM	Partial evidence	London, United Kingdom	51-200	76 contacts →
	Partial evidence “At Tap CXM, we believe businesses do best when they focus on customer experience.” Source: RevenueBase Database · checked Sep 3, 2026
8	PEN	Partial evidence	London, United Kingdom	51-200	75 contacts →
	Partial 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 3, 2026
9	Cloud Orca	Partial evidence	London, United Kingdom	51-200	74 contacts →
	Partial evidence “Part of Cooper Parry, Cloud Orca are a award winning London based Salesforce CRM consultancy focused on delivering effective, profitable and successful implementations and support…” Source: RevenueBase Database · checked Sep 3, 2026
10	Excalibur Communications	Partial evidence	Swindon, United Kingdom	51-200	72 contacts →
	Partial evidence “Excalibur provides an end to end business consulting service that offers reliable insight, and expertise in communications and technology.” Source: RevenueBase Database · checked Sep 3, 2026
11	Business Systems	Indirect evidence	London, United Kingdom	51-200	71 contacts →
	Indirect evidence “Business Systems is a trusted transformation partner with over 35 years of experience helping CX teams and contact centres become smarter, faster and more compliant.” Source: RevenueBase Database · checked Sep 3, 2026
12	LTK Consultants LTD	Partial evidence	Park, United Kingdom	51-200	63 contacts →
	Partial evidence “LTK are a outsourced solutions provider, assisting you to reach your goals through customer retention, sales growth, business & strategy development/ implementation and people…” Source: RevenueBase Database · checked Sep 3, 2026
13	Pracedo	Indirect evidence	London, United Kingdom	51-200	49 contacts →
	Indirect evidence “At Pracedo, we're not just Salesforce Consultants.” Source: RevenueBase Database · checked Sep 3, 2026
14	Process Management International PMI	Indirect evidence	Meriden, United Kingdom	11-50	45 contacts →
	Indirect evidence “Process Management International (PMI) has been at the forefront of business improvement consultancy and training since 1984.” Source: RevenueBase Database · checked Sep 3, 2026
15	Purple Square	Partial evidence	Gatwick, United Kingdom	51-200	37 contacts →
	Partial evidence “Purple Square CX, is a Customer Experience Advisory that offers a diverse range of services aimed at enhancing customer interactions for businesses.” Source: RevenueBase Database · checked Sep 3, 2026
16	In2action LTD	Partial evidence	Cowes, United Kingdom	11-50	36 contacts →
	Partial evidence “At In2action, we believe in delivering out of this world customer experiences.” Source: RevenueBase Database · checked Sep 3, 2026
17	Market Intelligence International	Indirect evidence	London, United Kingdom	51-200	35 contacts →
	Indirect evidence “Market Intelligence International (Marketii) is a trusted advisor to the world’s leading organizations in technology, medical devices, and consumer products.” Source: RevenueBase Database · checked Sep 3, 2026
18	Nebula Consulting	Indirect evidence	London, United Kingdom	11-50	34 contacts →
	Indirect evidence “As a Salesforce registered partner, we specialise in implementing and supporting Salesforce CRM and B2B Marketing Automation services.” Source: RevenueBase Database · checked Sep 3, 2026
19	Kpmg Nunwood	Partial evidence	Leeds, United Kingdom	51-200	34 contacts →
	Partial evidence “KPMG Nunwood specialises in customer experience improvement.” Source: RevenueBase Database · checked Sep 3, 2026
20	Global Leader Group	Indirect evidence	London, United Kingdom	11-50	31 contacts →
	Indirect evidence “Global Leader Group is a collection of committed and experienced practitioners who share a deep-rooted desire to make a difference by helping organizations and individuals live…” Source: RevenueBase Database · checked Sep 3, 2026
21	Performa	Indirect evidence	Stonehouse, United Kingdom	51-200	29 contacts →
	Indirect evidence “Performa \| Summit Salesforce Partner & Agentforce Specialists Performa is a Summit-level Salesforce consultancy and Agentforce specialist, helping businesses of all sizes unlock…” Source: RevenueBase Database · checked Sep 3, 2026
22	Gemseek, Part Of Accenture Song	Partial evidence	London, United Kingdom	51-200	25 contacts →
	Partial evidence “We are here to help global enterprises design, build and scale up their customer experience programs.” Source: RevenueBase Database · checked Sep 3, 2026
23	Comnexa	Partial evidence	London, United Kingdom	51-200	24 contacts →
	Partial evidence “Comnexa is a Salesforce consulting partner.” Source: RevenueBase Database · checked Sep 3, 2026
24	Innovation Visual Limited	Partial evidence	Elstead, United Kingdom	11-50	23 contacts →
	Partial evidence “We're a consulting agency and think of ourselves as agents of change, driven by technology.” Source: RevenueBase Database · checked Sep 3, 2026
25	Supply Source INC	Indirect evidence	Glenrothes, United Kingdom	51-200	18 contacts →
	Indirect evidence “Supply Source* Inc, an Oregon-based company, is striving to be a problem solver in areas that help international and domestic businesses grow sales, improve efficiency, and reduce…” Source: RevenueBase Database · checked Sep 3, 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: customer success 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 customer success consulting firms.
Partial evidence: Its own public description names part of customer success consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name customer success 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 1,286 customer success consulting firms based in the United Kingdom

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Customer success consulting firms based in the United Kingdom at a glance

As of Sep 3, 2026

26.2%Verified-email coverage

7.8%Mobile-number coverage

5.0Average contacts per company

1-10Median size (employees)

37.3%Largest-city concentration · London

Sep 3, 2026Page data refreshed

Companies by employee count

1-10

1,055

11-50

167

51-200

201-500

501-1,000

1,001-5,000

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 customer success 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 the United Kingdom whose own description of what they do matches “customer success 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 customer success 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 customer success consulting firms, 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, 1,680 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 3, 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.

Customer success consulting firms 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 customer success 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 customer success consulting firms are there based in the United Kingdom?

RevenueBase identified 1,286 customer success consulting firms 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?

Vertex Data Science, headquartered in London, tops this list with the largest team on record.

Which city has the most customer success consulting firms?

London leads with 480 headquartered companies, followed by Manchester (35) and Leeds (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 1,680 verified decision-maker contacts tracked across these 1,286 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 3, 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.