Company lists · Data refreshed September 2026

Top 25 Infrastructure automation consulting firms based in the United Kingdom

RevenueBase identified 698 infrastructure automation consulting firms headquartered in the United Kingdom as of September 2026 and tracks 15,388 professional contacts across them, including 5,876 with verified work emails. London is the largest hub.

This list covers infrastructure automation 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 28, 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 28, 2026 86% judged on-target in blind review
698Companies
15,388Contacts tracked
5,876Verified emails
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The 25 largest infrastructure automation consulting firms based in the United Kingdom

Ranked by team size
Top 25 of 698 infrastructure automation consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to infrastructure automation 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLondon, United KingdomHQ checked Sep 28, 202610001+6,667 contacts →

Partial evidence

“Who we are: Amey is a global, integrated infrastructure consultancy and operations partner.”

Source: RevenueBase Database · checked Sep 28, 2026
2Partial evidenceLondon, United KingdomHQ checked Sep 28, 2026501-1,000585 contacts →

Partial evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500524 contacts →

Indirect evidence

“Complex challenges.”

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500453 contacts →

Indirect evidence

“Redstone is now part of RedstoneConnect PLC.”

Source: RevenueBase Database · checked Sep 28, 2026
5Partial evidenceLondon, United KingdomHQ checked Sep 28, 2026501-1,000401 contacts →

Partial evidence

“We believe successful businesses are underpinned by quality IT infrastructure.”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500264 contacts →

Indirect evidence

“Welcome to Adaptive.”

Source: RevenueBase Database · checked Sep 28, 2026
7Partial evidenceEpsom, United KingdomHQ checked Sep 28, 202651-200238 contacts →

Partial evidence

“Penta Consulting provides the people to power your most ambitious projects.”

Source: RevenueBase Database · checked Sep 28, 2026
8Partial evidenceManchester, United KingdomHQ checked Sep 28, 2026201-500228 contacts →

Partial evidence

“Sudlows is a multi-award winning Critical Infrastructures, Enterprise Services and Facilities Management specialist which provides a full range of technical services for…”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidencePencoed, United KingdomHQ checked Sep 28, 202651-200211 contacts →

Indirect evidence

“Technology services for the future.”

Source: RevenueBase Database · checked Sep 28, 2026
10Strong evidenceBirmingham, United KingdomHQ checked Sep 28, 2026501-1,000190 contacts →

Strong evidence

“At Actemium UK, we are expert electrical, automation and mechanical engineers delivering bespoke engineering solutions across industry, infrastructure and beyond.”

Source: RevenueBase Database · checked Sep 28, 2026
11Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-200130 contacts →

Indirect evidence

“ai4process was founded in 2019 on the principle that the most successful, cost-effective projects can be executed by small teams of deeply experience consultants in the same…”

Source: RevenueBase Database · checked Sep 28, 2026
12Partial evidenceLondon, United KingdomHQ checked Sep 28, 2026201-500114 contacts →

Partial evidence

“SRC Infrastructure has been providing project management and engineering advisory, consultancy and managed service solutions to UK infrastructure clients for 20 years.”

Source: RevenueBase Database · checked Sep 28, 2026
13Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202610001+110 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-20087 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 28, 2026
15Partial evidenceManchester, United KingdomHQ checked Sep 28, 202651-20085 contacts →

Partial evidence

“BTTC is a high-performance infrastructure project consultancy founded on the principle that our industry can deliver projects ‘better through total collaboration’.”

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20084 contacts →

Partial evidence

“Proservartner is an international consulting firm.”

Source: RevenueBase Database · checked Sep 28, 2026
17Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202611-5068 contacts →

Indirect evidence

“Sytel Reply is the Reply Company focused on Networks and Security.”

Source: RevenueBase Database · checked Sep 28, 2026
18Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026201-50067 contacts →

Indirect evidence

“WELCOME TO GLOBALMINDS A Team of Brilliant Consultants, with years of experience GlobalMinds a group of highly experienced brilliant consultants with minimum 15+ years of…”

Source: RevenueBase Database · checked Sep 28, 2026
19Partial evidenceTheale, United KingdomHQ checked Sep 28, 202651-20065 contacts →

Partial evidence

“Automation Consultants is a leader in the field of automating the application life cycle.”

Source: RevenueBase Database · checked Sep 28, 2026
20Indirect evidenceLondon, United KingdomHQ checked Sep 28, 2026501-1,00064 contacts →

Indirect evidence

“Berkeley Engineering is an engineering and management consultancy with a head office in Mayfair, London.”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceBristol, United KingdomHQ checked Sep 28, 202651-20062 contacts →

Partial evidence

“Applicable helps organisations unlock the full potential of Microsoft 365 with expert consultancy, 24×7 support, and automation-driven administration and configuration.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceLondon, United KingdomHQ checked Sep 28, 2026201-50060 contacts →

Partial evidence

“Insoft Services specializes in elevating IT infrastructure resilience and security, focusing on the critical domains of IT networking, data center infrastructure, cybersecurity…”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceRichmond, United KingdomHQ checked Sep 28, 202651-20056 contacts →

Indirect evidence

“At Estafet, we don’t just optimize processes - we revolutionize how enterprises operate.”

Source: RevenueBase Database · checked Sep 28, 2026
24Partial evidenceLondon, United KingdomHQ checked Sep 28, 202651-20054 contacts →

Partial 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 28, 2026
25Indirect evidenceLondon, United KingdomHQ checked Sep 28, 202651-20051 contacts →

Indirect evidence

“We support you at every stage of your cloud native transformation.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 698 infrastructure automation consulting firms based in the United Kingdom

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Infrastructure automation consulting firms based in the United Kingdom at a glance

As of Sep 28, 2026
38.2%Verified-email coverage
22.0Average contacts per company
1-10Median size (employees)
41.3%Largest-city concentration · London
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
445
11-50
176
51-200
47
201-500
17
501-1,000
5
1,001-5,000
4
5,001-10,000
1
10001+
2

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 698 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 infrastructure automation 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 “infrastructure automation 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 infrastructure automation 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 infrastructure automation 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, 5,876 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 28, 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.

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 infrastructure automation 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 infrastructure automation consulting firms are there based in the United Kingdom?

RevenueBase identified 698 infrastructure automation 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?

AMEY, headquartered in United Kingdom, tops this list with the largest team on record.

Which city has the most infrastructure automation consulting firms?

London leads with 288 headquartered companies, followed by Manchester (27) and Birmingham (10).

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 5,876 verified decision-maker contacts tracked across these 698 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 28, 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.