Company lists · Data refreshed September 2026

Top 11 IT operations consulting firms based in the United Kingdom

Name: IT operations 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 4, 2026 5,574 companies tracked

RevenueBase identified 5,574 company matches for IT operations consulting firms associated with the United Kingdom as of September 2026 and tracks 341,838 professional contacts across them, including 79,593 with verified work emails and 23,495 with mobile numbers. London is the largest hub.

This list covers company matches for IT operations consulting firms associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 4, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 SmartSearch · Exact Recorded Sep 4, 2026 How this list was built

5,574Companies

341,838Contacts tracked

79,593Verified emails

23,495Mobile numbers

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The 11 largest IT operations consulting firms based in the United Kingdom

Ranked by team size

Top 11 of 5,574 company matches for IT operations consulting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 4, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Accenture UK & Ireland	Exact match	London London, United KingdomHQ recorded Sep 4, 2026	5,001-10,000	3,718 contacts →
	Exact match “Accenture helps the world’s leading enterprises reinvent by building their digital core and unleashing the power of AI to create value at speed for organisations across industries.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
2	PMC	Exact match	Abingdon, United KingdomHQ recorded Sep 4, 2026	501-1,000	1,429 contacts →
	Exact match “PMC combines consulting with expert software engineering and 24x7x365 managed services to deliver high-quality technology services and solutions across retail, D2C, and broader…” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
3	Genisys Group	Exact match	London, United KingdomHQ recorded Sep 4, 2026	1,001-5,000	1,146 contacts →
	Exact match “Genisys Group is a new age global information technology and business process services company.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
4	First Derivative	Exact match	Newry, United KingdomHQ recorded Sep 4, 2026	1,001-5,000	1,022 contacts →
	Exact match “First Derivative is driven by people, data, and technology, unlocking the value of insight, hindsight, and foresight to drive organizations forward.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
5	Nasstar	Exact match	Wakefield, United KingdomHQ recorded Sep 4, 2026	1,001-5,000	841 contacts →
	Exact match “Complexity isn’t the enemy.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
6	Node4	Exact match	Derby, United KingdomHQ recorded Sep 4, 2026	1,001-5,000	624 contacts →
	Exact match “Node4 helps businesses achieve more with secure, AI‑powered cloud and managed service platforms.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
7	Arvatoconnect	Exact match	Datchet, United KingdomHQ recorded Sep 4, 2026	501-1,000	538 contacts →
	Exact match “Your world is changing at lightning speed; new business models, new technologies, new competitors, and new customers.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
8	Zenzero	Exact match	London, United KingdomHQ recorded Sep 4, 2026	501-1,000	403 contacts →
	Exact match “We believe successful businesses are underpinned by quality IT infrastructure.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
9	Sandhata Technologies	Exact match	London, United KingdomHQ recorded Sep 4, 2026	201-500	365 contacts →
	Exact match “We are a global niche consultancy specialising in services that span all facets of Digital transformation, DevOps, and System Integration.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
10	Delaware United Kingdom & Ireland	Exact match	Bristol, United KingdomHQ recorded Sep 4, 2026	1,001-5,000	359 contacts →
	Exact match “Our mission is to help our clients reach their full potential, by applying our common sense, business experience and passion for technology.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase
11	Softwire	Exact match	London, United KingdomHQ recorded Sep 4, 2026	201-500	356 contacts →
	Exact match “Softwire exists to help organisations use technology to deliver meaningful outcomes and a positive impact for themselves, their users and the world.” Recorded in the RevenueBase company graph · Sep 4, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “IT operations consulting firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 11 of 5,574 IT operations consulting firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 79,593 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT operations consulting firms based in the United Kingdom at a glance

As of Sep 4, 2026

23.3%Verified-email coverage

6.9%Mobile-number coverage

61.3Average contacts per company

1-10Median size (employees)

37.1%Largest-city concentration · London

Sep 4, 2026Page data refreshed

Companies by employee count

1-10

3,739

11-50

1,164

51-200

400

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

00–30

6,75031–60

43,31361–90

28,27090–180

1,260180+

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Company records associated with the United Kingdom whose business descriptions match “IT operations consulting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch: Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview: The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality: RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 79,593 professional contacts with verified work emails across the full matched dataset. 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 4, 2026. Lists refresh periodically as the graph is re-checked.
Record context: Company records and descriptions can change. Check the company's website for its current services and locations.

IT operations consulting firms by metro

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT operations consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT operations consulting firms are there based in the United Kingdom?

RevenueBase identified 5,574 company matches for IT operations consulting firms associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Accenture UK & Ireland tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most IT operations consulting firms?

London leads with 2067 company records, followed by Manchester (134) and Birmingham (86).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 79,593 professional contacts with verified work emails tracked across these 5,574 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 4, 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 SmartSearch, 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.