Company lists · Data refreshed September 2026

Top 25 Customer success consulting firms based in London, United Kingdom

Name: Customer success consulting firms based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 10, 2026 482 companies tracked

RevenueBase identified 482 customer success consulting firms headquartered in London, United Kingdom as of September 2026 and tracks 3,141 professional contacts across them, including 881 with verified work emails and 247 with mobile numbers. Across the United Kingdom, London is the largest hub for this category.

This list covers customer success consulting firms 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 10, 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 10, 2026 86% judged on-target in blind review

482Companies

3,141Contacts tracked

881Verified emails

247Mobile numbers

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The 25 largest customer success consulting firms based in London, United Kingdom

Ranked by team size

Top 25 of 482 customer success consulting firms based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 10, 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 KingdomHQ checked Sep 10, 2026	51-200	569 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 10, 2026
2	ORG	Indirect evidence	London, United KingdomHQ checked Sep 10, 2026	1,001-5,000	139 contacts →
	Indirect evidence “We believe that change is an opportunity to thrive.” Source: RevenueBase Database · checked Sep 10, 2026
3	Momentumabm	Indirect evidence	London, United KingdomHQ checked Sep 10, 2026	51-200	89 contacts →
	Indirect evidence “MomentumABM is a growth consultancy that enables global organizations to achieve market-beating performance by winning, growing, and retaining their most valuable client…” Source: RevenueBase Database · checked Sep 10, 2026
4	Growth HUB	Indirect evidence	London, United KingdomHQ checked Sep 10, 2026	51-200	85 contacts →
	Indirect evidence “Growth Hub embeds operational teams inside professional services firms.” Source: RevenueBase Database · checked Sep 10, 2026
5	TAP CXM	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	51-200	77 contacts →
	Partial evidence “At Tap CXM, we believe businesses do best when they focus on customer experience.” Source: RevenueBase Database · checked Sep 10, 2026
6	PEN	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	51-200	76 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 10, 2026
7	Cloud Orca	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	51-200	73 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 10, 2026
8	The Tecsa Group	Indirect evidence	London, United KingdomHQ checked Sep 10, 2026	51-200	66 contacts →
	Indirect evidence “Tecsa is a specialist retail loyalty and analytics consultancy founded and led by former retail executives who built and ran major loyalty programmes, including Nectar, Holland &…” Source: RevenueBase Database · checked Sep 10, 2026
9	Business Systems	Indirect evidence	London, United KingdomHQ checked Sep 10, 2026	51-200	63 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 10, 2026
10	Xlr8	Indirect evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	59 contacts →
	Indirect evidence “Consult us for.” Source: RevenueBase Database · checked Sep 10, 2026
11	Signalcx	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	51 contacts →
	Partial evidence “For nearly 4 decades, we have worked with some of the world’s best brands to design and enable great customer experiences.” Source: RevenueBase Database · checked Sep 10, 2026
12	The Foundation	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	49 contacts →
	Strong evidence “Since we’ve helped ambitious leaders and organisations create true customer-led success.” Source: RevenueBase Database · checked Sep 10, 2026
13	Pracedo	Indirect evidence	London, United KingdomHQ checked Sep 10, 2026	51-200	48 contacts →
	Indirect evidence “At Pracedo, we're not just Salesforce Consultants.” Source: RevenueBase Database · checked Sep 10, 2026
14	Nebula Consulting	Indirect evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	35 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 10, 2026
15	Market Intelligence International	Indirect evidence	London, United KingdomHQ checked Sep 10, 2026	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 10, 2026
16	Acquisition INC	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	34 contacts →
	Partial evidence “Customer Acquisition seems to be the end goal of so much global marketing spend, yet the complexity of all the moving parts is often overlooked.” Source: RevenueBase Database · checked Sep 10, 2026
17	Kpmg Nunwood	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	51-200	33 contacts →
	Partial evidence “KPMG Nunwood specialises in customer experience improvement.” Source: RevenueBase Database · checked Sep 10, 2026
18	Journey4	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	1-10	28 contacts →
	Partial evidence “We are experts in customer-led growth and transformation.” Source: RevenueBase Database · checked Sep 10, 2026
19	JTN Group	Indirect evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	27 contacts →
	Indirect evidence “JTN stands for growth in all its forms: Revenue Growth; Margin Growth; and Personal Growth.” Source: RevenueBase Database · checked Sep 10, 2026
20	Cantata	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	25 contacts →
	Partial evidence “Cantata is the UK’s leading independent CRM specialist consultancy, helping organisations to gain the most from customer and stakeholder management.” Source: RevenueBase Database · checked Sep 10, 2026
21	Mint Consulting	Indirect evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	24 contacts →
	Indirect evidence “Founded by Sam Joyce and launched in October 2023, Mint is bringing together the learnings of a team with decades of experience in the Salesforce ecosystem, building the best team…” Source: RevenueBase Database · checked Sep 10, 2026
22	Gemseek, Part Of Accenture Song	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	51-200	24 contacts →
	Partial evidence “We are here to help global enterprises design, build and scale up their customer experience programs.” Source: RevenueBase Database · checked Sep 10, 2026
23	Frankly Solutions	Strong evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	23 contacts →
	Strong evidence “We are a specialised Salesforce Consulting partner, helping customers to maximize the value of their investment in the Salesforce ecosystem.” Source: RevenueBase Database · checked Sep 10, 2026
24	Loop Horizon	Partial evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	22 contacts →
	Partial evidence “We are a consulting & technology company with expertise across Consumer, B2B and Health.” Source: RevenueBase Database · checked Sep 10, 2026
25	Hamilton Capital Holding	Indirect evidence	London, United KingdomHQ checked Sep 10, 2026	11-50	20 contacts →
	Indirect evidence “At Hamilton, we bridge the gap between your organisation and your clients.” Source: RevenueBase Database · checked Sep 10, 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 482 customer success consulting firms based in London, United Kingdom

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Customer success consulting firms based in London, United Kingdom at a glance

As of Sep 10, 2026

28.0%Verified-email coverage

7.9%Mobile-number coverage

6.5Average contacts per company

1-10Median size (employees)

Sep 10, 2026Page data refreshed

Companies by employee count

1-10

367

11-50

51-200

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 12.0d

8030–30

7431–60

061–90

090–180

4180+

Company record updated

Median 73.0d

00–30

1,19631–60

1,46561–90

33490–180

146180+

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 London, 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 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, 881 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 10, 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 in the United Kingdom

Customer success consulting firms in Manchester35

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 London, United Kingdom?

RevenueBase identified 482 customer success consulting firms 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?

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

Which city in the United Kingdom has the most customer success consulting firms?

London leads the United Kingdom 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 881 verified decision-maker contacts tracked across these 482 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 10, 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.