Company lists · Data refreshed September 2026

Top 25 Data center migration specialists based in the United Kingdom

RevenueBase identified 180 data center migration specialists headquartered in the United Kingdom as of September 2026 and tracks 10,503 professional contacts across them, including 1,087 with verified work emails. London is the largest hub.

This list covers data center migration specialists 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 19, 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 19, 2026 86% judged on-target in blind review
180Companies
10,503Contacts tracked
1,087Verified emails
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The 25 largest data center migration specialists based in the United Kingdom

Ranked by team size
Top 25 of 180 data center migration specialists based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to data center migration specialists: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceLondon, United KingdomHQ checked Sep 19, 2026501-1,000585 contacts →

Indirect evidence

“Onnec is a leading partner for IT Infrastructure design, installation and operational support services.”

Source: RevenueBase Database · checked Sep 19, 2026
2Partial evidenceFareham, United KingdomHQ checked Sep 19, 202651-200184 contacts →

Partial evidence

“Vohkus is a rapidly growing, highly agile UK IT supplier specialising in end-to-end IT supply, enterprise infrastructure solutions, and comprehensive managed services.”

Source: RevenueBase Database · checked Sep 19, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202651-20087 contacts →

Indirect evidence

“We are Technimove.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202651-20087 contacts →

Indirect evidence

“At Constor Solutions, we believe that technology is the backbone of a successful business.”

Source: RevenueBase Database · checked Sep 19, 2026
5Strong evidenceWokingham, United KingdomHQ checked Sep 19, 202651-20082 contacts →

Strong evidence

“Future-tech is a specialist data centre engineering services provider.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202651-20054 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 19, 2026
7Indirect evidenceBracknell, United KingdomHQ checked Sep 19, 202651-20040 contacts →

Indirect evidence

“Sunspeed is your trusted partner for physical IT services.”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceGrays, United KingdomHQ checked Sep 19, 2026201-50035 contacts →

Indirect evidence

“Excel builds, supports and optimises the IT infrastructure, networks and connectivity which drive global business performance.”

Source: RevenueBase Database · checked Sep 19, 2026
9Partial evidenceClevedon, United KingdomHQ checked Sep 19, 202651-20034 contacts →

Partial evidence

“Since pioneering the world’s first email archive migration tool in 2006, Transvault has delivered over 3,500 projects across 56 countries.”

Source: RevenueBase Database · checked Sep 19, 2026
10Strong evidenceKings Langley, United KingdomHQ checked Sep 19, 202611-5031 contacts →

Strong 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 19, 2026
11Indirect evidenceKent, United KingdomHQ checked Sep 19, 202611-5025 contacts →

Indirect evidence

“We don’t just deliver transformation, we make it predictable.”

Source: RevenueBase Database · checked Sep 19, 2026
12Strong evidenceLondon, United KingdomHQ checked Sep 19, 202611-5025 contacts →

Strong evidence

“Bharat Managed Services is an efficient IT service provider, which offers a wide array of solutions, ranging from IT service management to data center relocations.”

Source: RevenueBase Database · checked Sep 19, 2026
13Indirect evidenceBerkshire, United KingdomHQ checked Sep 19, 202651-20019 contacts →

Indirect evidence

“Haz Mission Critical provides professional Mission Critical support to clients around the world.”

Source: RevenueBase Database · checked Sep 19, 2026
14Partial evidenceTachbrook Park Warwick, United KingdomHQ checked Sep 19, 202651-20019 contacts →

Partial evidence

Data Confidence.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202611-5017 contacts →

Indirect evidence

“H3O Digital provides enterprise class technical services for businesses of all sizes.”

Source: RevenueBase Database · checked Sep 19, 2026
16Strong evidenceDorking, United KingdomHQ checked Sep 19, 202611-5015 contacts →

Strong evidence

“At EfficiencyIT, our mission is to challenge the status quo of what's achievable versus what's acceptable in data centres, IT, and critical communications environments.”

Source: RevenueBase Database · checked Sep 19, 2026
17Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202611-5015 contacts →

Indirect evidence

“At Dade2, our mission is simple.”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceDoncaster, United KingdomHQ checked Sep 19, 202611-5014 contacts →

Indirect evidence

“Secure & Critical Environments”

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceHunton Bridge, United KingdomHQ checked Sep 19, 202611-5014 contacts →

Indirect evidence

“ekte are a customer led IT support and service company that look to save companies time, money and frustration.”

Source: RevenueBase Database · checked Sep 19, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 19, 202611-5012 contacts →

Indirect evidence

“Tammwe helps organisations unlock faster, smarter, and more cost-effective digital transformation.”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceStonehouse, United KingdomHQ checked Sep 19, 202611-5011 contacts →

Indirect evidence

“The Camworth approach is unique, offering our valued customers a more efficient cost effective perspective on IT service, support and hardware provisioning than can be offered by…”

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceOxford, United KingdomHQ checked Sep 19, 202611-509 contacts →

Indirect evidence

“When you work with us, we find out how you work with IT.”

Source: RevenueBase Database · checked Sep 19, 2026
23Strong evidenceManchester, United KingdomHQ checked Sep 19, 202611-509 contacts →

Strong evidence

“GNC Technology is a UK IT consultancy specialising in Microsoft 365 migrations, digital transformation, and managed IT services for organisations across regulated sectors.”

Source: RevenueBase Database · checked Sep 19, 2026
24Indirect evidenceLiverpool, United KingdomHQ checked Sep 19, 202611-509 contacts →

Indirect evidence

“At Resman, we provide tailored IT solutions.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceGlasgow, United KingdomHQ checked Sep 19, 202611-509 contacts →

Indirect evidence

“We are a dedicated team of software professionals with a deep passion for cloud architecture, DevOps automation, and tackling intricate business challenges.”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 180 data center migration specialists based in the United Kingdom

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Data center migration specialists based in the United Kingdom at a glance

As of Sep 19, 2026
10.3%Verified-email coverage
58.4Average contacts per company
1-10Median size (employees)
33.3%Largest-city concentration · London
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
109
11-50
55
51-200
12
201-500
1
501-1,000
2
1,001-5,000
1

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 180 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 data center migration specialists, 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 “data center migration specialists”. 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 data center migration specialists), 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 data center migration specialists, 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, 1,087 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 19, 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.

Data center migration specialists by metro

  • Data center migration specialists in London60

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 data center migration specialists, 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 data center migration specialists are there based in the United Kingdom?

RevenueBase identified 180 data center migration specialists 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?

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

Which city has the most data center migration specialists?

London leads with 60 headquartered companies, followed by Basingstoke (4) and Bracknell (3).

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 1,087 verified decision-maker contacts tracked across these 180 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 19, 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.