Company lists · Data refreshed September 2026

Top 25 Devops security consulting firms based in the United Kingdom

Name: Devops security 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 28, 2026 803 companies tracked

RevenueBase identified 803 company matches for devops security consulting firms associated with the United Kingdom as of September 2026 and tracks 6,382 professional contacts across them, including 2,089 with verified work emails. London is the largest hub.

This list covers company matches for devops security 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 28, 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 28, 2026 How this list was built

803Companies

6,382Contacts tracked

2,089Verified emails

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The 25 largest devops security consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 803 company matches for devops security consulting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 28, 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	Securityhq	Exact match	London, United KingdomHQ recorded Sep 28, 2026	501-1,000	502 contacts →
	Exact match “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Xalient	Exact match	Leeds, United KingdomHQ recorded Sep 28, 2026	201-500	260 contacts →
	Exact match “We are a global boutique, specializing exclusively in the convergence of identity-driven security and networking.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	Turnkey Consulting	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	134 contacts →
	Exact match “Turnkey Consulting brings together people, protection, and performance to help the world’s leading companies understand and optimize their risk and security landscape.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
4	Bulletproof Cyber Security	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	123 contacts →
	Exact match “Bulletproof is now part of WorkNest Secure.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Caretower An Integrity360 Company	Exact match	London, United KingdomHQ recorded Sep 28, 2026	201-500	97 contacts →
	Exact match “As an independent IT security specialist, Caretower provide comprehensive solutions to individual problems, thus allowing our recommendations to be unbiased.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	Amethyst Risk Management	Exact match	Basingstoke, United KingdomHQ recorded Sep 28, 2026	11-50	85 contacts →
	Exact match “Amethyst Risk Management is a leading cybersecurity consultancy supplying expert services and support to the UK Government, Defence, Operators of Essential Services, and the…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
7	Saepio Information Security	Exact match	High Wycombe, United KingdomHQ recorded Sep 28, 2026	51-200	74 contacts →
	Exact match “Saepio increase awareness, reduce risk and improve security in a continually evolving threat landscape.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Tuliptech	Exact match	Leicester, United KingdomHQ recorded Sep 28, 2026	51-200	70 contacts →
	Exact match “We build business technology, then we stay and run it.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Sytel Reply	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	68 contacts →
	Exact match “Sytel Reply is the Reply Company focused on Networks and Security.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	MDSEC	Exact match	Macclesfield, United KingdomHQ recorded Sep 28, 2026	11-50	61 contacts →
	Exact match “MDSec are a UK based consultancy with a passion for information security.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Evalian	Exact match	Southampton, United KingdomHQ recorded Sep 28, 2026	51-200	60 contacts →
	Exact match “Many organisations are dealing with multiple frameworks, overlapping tools, disconnected ownership, and increasing pressure from regulators, customers, and boards.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Cyberlab	Exact match	Alderley Edge, United KingdomHQ recorded Sep 28, 2026	51-200	57 contacts →
	Exact match “CyberLab is the UK-leading cyber security consultancy and managed services provider, trusted by over 1,200 enterprise businesses, government departments, and household names to…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Secureflag	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	57 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Riversafe	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	57 contacts →
	Exact match “We deliver services in Cybersecurity, Application Security and DevOps and are trusted by some of the world’s leading brands to maximise the value of their security investments and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Somerford Associates Limited	Exact match	Swindon, United KingdomHQ recorded Sep 28, 2026	51-200	54 contacts →
	Exact match “Somerford Associates has certified and security cleared consultants who build and integrate bespoke platforms that significantly reduce risks and drive productivity across a broad…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Redscan, A Kroll Business	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	51 contacts →
	Exact match “Redscan is an award-winning provider of managed security services, specialising in Managed Detection and Response, Penetration Testing and Red Teaming.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Controlplane	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	50 contacts →
	Exact match “Expert Kubernetes Consultancy for Secure, Scalable, and Automated Cloud Native Solutions We are a London-based Kubernetes consultancy specialising in building secure, scalable…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Cornerstone	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	44 contacts →
	Exact match “CornerStone is an award winning, independent, security and digital building consulting firm with headquarters in the UK.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Coretech Security	Exact match	Cheltenham, United KingdomHQ recorded Sep 28, 2026	51-200	42 contacts →
	Exact match “CoreTech is a specialist cyber security company whose people are motivated by the desire to deliver exceptional capabilities coupled with a real sense of mission.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	Core To Cloud	Exact match	Cirencester, United KingdomHQ recorded Sep 28, 2026	11-50	39 contacts →
	Exact match “We help organisations understand, optimise, and strengthen their cybersecurity.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Secforce LTD	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	39 contacts →
	Exact match “SECFORCE are vendor independent offensive security specialists providing effective business risk intelligence and strategic security consulting.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	Omerta	Exact match	Saffron Walden, United KingdomHQ recorded Sep 28, 2026	51-200	38 contacts →
	Exact match “Omerta - A Global Security Technology and Services Company.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Secarma LTD	Exact match	Manchester, United KingdomHQ recorded Sep 28, 2026	11-50	36 contacts →
	Exact match “Secarma exists to keep the world safe.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Deployflow	Exact match	Bracknell, United KingdomHQ recorded Sep 28, 2026	51-200	35 contacts →
	Exact match “Deployflow is a digital transformation company specialising in DevOps consulting, cloud governance, and AI-accelerated engineering, working with scale-ups and enterprises across…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Notsosecure Training Part Of Claranet Cyber Security	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1,001-5,000	33 contacts →
	Exact match “NotSoSecure Training, part of Claranet Cyber Security.” Recorded in the RevenueBase company graph · Sep 28, 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 “devops security 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 25 of 803 devops security consulting firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 2,089 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Devops security consulting firms based in the United Kingdom at a glance

As of Sep 28, 2026

32.7%Verified-email coverage

7.9Average contacts per company

1-10Median size (employees)

43.1%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

559

11-50

198

51-200

201-500

501-1,000

1,001-5,000

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 803 companies.

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 “devops security 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 2,089 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 28, 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.

Devops security 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 “devops security consulting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many devops security consulting firms are there based in the United Kingdom?

RevenueBase identified 803 company matches for devops security 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?

Securityhq tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most devops security consulting firms?

London leads with 346 company records, followed by Manchester (32) and Birmingham (12).

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 2,089 professional contacts with verified work emails tracked across these 803 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 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 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.