Company lists · Data refreshed September 2026

Top 25 Platform migration agencies based in the United Kingdom

Name: Platform migration agencies based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 21, 2026 298 companies tracked

RevenueBase identified 298 platform migration agencies headquartered in the United Kingdom as of September 2026 and tracks 11,949 professional contacts across them, including 1,365 with verified work emails. London is the largest hub.

This list covers platform migration agencies 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 21, 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 21, 2026 86% judged on-target in blind review

298Companies

11,949Contacts tracked

1,365Verified emails

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The 25 largest platform migration agencies based in the United Kingdom

Ranked by team size

Top 25 of 298 platform migration agencies based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 21, 2026. RevenueBase Smart Search rates how each company's information relates to platform migration agencies: 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	KIN Carta	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	5,001-10,000	400 contacts →
	Indirect evidence “Kin + Carta was acquired by Valtech in 2024.” Source: RevenueBase Database · checked Sep 21, 2026
2	Devtech	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	266 contacts →
	Indirect evidence “Devtech provides outcome-driven digital innovation services and helps companies better respond to change.” Source: RevenueBase Database · checked Sep 21, 2026
3	Vertex Agility	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	255 contacts →
	Indirect evidence “Vertex Agility is your next Global Digital Consultancy, providing deep expertise in Cloud, Data, and Software to the biggest brands in the world and the most disruptive scale-ups.” Source: RevenueBase Database · checked Sep 21, 2026
4	Genese Solution	Indirect evidence	Plymouth, United KingdomHQ checked Sep 21, 2026	51-200	199 contacts →
	Indirect evidence “Genese Solution is a technology service company leading digital transformation with roots in Cloud Computing, Cloud Native Software Development & Cloud Security.” Source: RevenueBase Database · checked Sep 21, 2026
5	Contino, A Cognizant Company	Indirect evidence	Liverpool Street, United KingdomHQ checked Sep 21, 2026	201-500	158 contacts →
	Indirect evidence “Contino joined the Cognizant family in 2019.” Source: RevenueBase Database · checked Sep 21, 2026
6	Adapt A Datapipe Company	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	201-500	98 contacts →
	Indirect evidence “Adapt is a leading UK managed cloud services provider and integrator, enabling customers’ digital evolution.” Source: RevenueBase Database · checked Sep 21, 2026
7	Neosalpha Technologies	Indirect evidence	Maidenhead, United KingdomHQ checked Sep 21, 2026	51-200	97 contacts →
	Indirect evidence “NeosAlpha: Your Trusted Partner in IT Consulting and Digital Transformation Founded in the UK in 2017, NeosAlpha is a niche IT consulting and services company, that delivers…” Source: RevenueBase Database · checked Sep 21, 2026
8	Technimove	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	87 contacts →
	Indirect evidence “We are Technimove.” Source: RevenueBase Database · checked Sep 21, 2026
9	Tuliptech	Indirect evidence	Leicester, United KingdomHQ checked Sep 21, 2026	51-200	70 contacts →
	Indirect evidence “We build business technology, then we stay and run it.” Source: RevenueBase Database · checked Sep 21, 2026
10	31 Green	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	63 contacts →
	Indirect evidence “At 31G, we know that developing a solution is just half the story.” Source: RevenueBase Database · checked Sep 21, 2026
11	Cloudplexo	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	54 contacts →
	Indirect evidence “CloudPlexo is a global technology consulting firm helping organizations transform, innovate, and build resilience through Cloud, AI, and Cybersecurity.” Source: RevenueBase Database · checked Sep 21, 2026
12	Marionete	Partial evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	53 contacts →
	Partial evidence “Marionete is a technology consulting firm that empowers organizations to design innovative data strategies, drive digital transformation, and build advanced digital platforms.” Source: RevenueBase Database · checked Sep 21, 2026
13	Diegesis Limited	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	52 contacts →
	Indirect evidence “Diegesis is a business technology and IT systems integration company that specialises in Decision Support Solutions.” Source: RevenueBase Database · checked Sep 21, 2026
14	Pace Integration	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	47 contacts →
	Indirect evidence “Pace Integration is a unique technology consultancy that solves your integration challenge – focused on enterprise systems integration strategy, architecture and design that is…” Source: RevenueBase Database · checked Sep 21, 2026
15	Mobilise Cloud	Indirect evidence	Bridgend, United KingdomHQ checked Sep 21, 2026	11-50	32 contacts →
	Indirect evidence “Mobilise is a leading cloud solutions provider specialising in helping businesses navigate the complexities of digital transformation.” Source: RevenueBase Database · checked Sep 21, 2026
16	Datalynx Limited	Partial evidence	Kings Langley, United KingdomHQ checked Sep 21, 2026	11-50	31 contacts →
	Partial evidence “Datalynx Ltd is a UK-based consultancy with over 20 years’ experience, dedicated to delivering data migration, data integration, data quality and data architecture & analytics…” Source: RevenueBase Database · checked Sep 21, 2026
17	Thebes Group	Indirect evidence	Milton Keynes, United KingdomHQ checked Sep 21, 2026	51-200	30 contacts →
	Indirect evidence “Thebes Group helps businesses succeed in technology so that they can realise their ambitions.” Source: RevenueBase Database · checked Sep 21, 2026
18	Towers Associates	Indirect evidence	Kent, United KingdomHQ checked Sep 21, 2026	11-50	25 contacts →
	Indirect evidence “We don’t just deliver transformation, we make it predictable.” Source: RevenueBase Database · checked Sep 21, 2026
19	Iridium Ir77 Limited	Strong evidence	Leeds, United KingdomHQ checked Sep 21, 2026	51-200	25 contacts →
	Strong evidence “Iridium is a Leeds-based consultancy specialising in delivering large-scale and complex migration and platform services for national and international organisations.” Source: RevenueBase Database · checked Sep 21, 2026
20	Stealth IT Consulting	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	24 contacts →
	Indirect evidence “We are a Digital, Data and Cloud technology consultancy, specialising in delivering solutions to clients across financial services, government, management consulting/outsourcing…” Source: RevenueBase Database · checked Sep 21, 2026
21	work2gether.io	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	23 contacts →
	Indirect evidence “Empowering Elite Brands in the Digital Landscape: Your IT Consulting and Services Partner Transforming the Future with Cloud Solutions Technologies!” Source: RevenueBase Database · checked Sep 21, 2026
22	Market Cloud LTD	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	21 contacts →
	Indirect evidence “Market Cloud helps transform digital potential into business reality.” Source: RevenueBase Database · checked Sep 21, 2026
23	Virtual Clarity Acquired	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	51-200	20 contacts →
	Indirect evidence “With a focus on digital transformation and implementing the best cloud systems, Virtual Clarity made IT-as-a-Service happen in the largest, most critical environments by aligning…” Source: RevenueBase Database · checked Sep 21, 2026
24	Egress Group	Indirect evidence	Tachbrook Park Warwick, United KingdomHQ checked Sep 21, 2026	51-200	19 contacts →
	Indirect evidence “Data Confidence.” Source: RevenueBase Database · checked Sep 21, 2026
25	Goaltech	Indirect evidence	London, United KingdomHQ checked Sep 21, 2026	11-50	16 contacts →
	Indirect evidence “Goaltech \| Cloud.” Source: RevenueBase Database · checked Sep 21, 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: platform migration agencies. 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 platform migration agencies.
Partial evidence: Its own public description names part of platform migration agencies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name platform migration agencies. 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 298 platform migration agencies based in the United Kingdom

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Platform migration agencies based in the United Kingdom at a glance

As of Sep 21, 2026

11.4%Verified-email coverage

40.1Average contacts per company

1-10Median size (employees)

39.6%Largest-city concentration · London

Sep 21, 2026Page data refreshed

Companies by employee count

1-10

181

11-50

51-200

201-500

1,001-5,000

5,001-10,000

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 298 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 platform migration agencies, 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 “platform migration agencies”. 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 platform migration agencies), 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 platform migration agencies, 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, 1,365 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 21, 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.

Platform migration agencies by metro

Platform migration agencies in London118

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 platform migration agencies, 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 platform migration agencies are there based in the United Kingdom?

RevenueBase identified 298 platform migration agencies 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?

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

Which city has the most platform migration agencies?

London leads with 118 headquartered companies, followed by Manchester (11) and Bristol (5).

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 1,365 verified decision-maker contacts tracked across these 298 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 21, 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.