Company lists · Data refreshed September 2026
Top 13 Network security consulting firms based in Birmingham, United Kingdom
RevenueBase identified 25 network security consulting firms headquartered in Birmingham, United Kingdom as of September 2026 and tracks 162 professional contacts across them, including 77 with verified work emails. London is the largest hub.
This list covers network security consulting firms headquartered in Birmingham, 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 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.
The 13 largest network security consulting firms based in Birmingham, United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 42 | ||||
“CyberQ Group is an award-winning, venture-backed, and globally accredited [ISO27K and CREST] cybersecurity leader dedicated to bridging the "protection gap" for high-stakes…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 32 | ||||
“Aristi is a specialist provider of cyber security services with over 17 years of experience.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | 15 | ||||
“Best penetration testing service - Teiss Awards 2024 Managed cloud service winner - Stratus Awards 2023 Security vendor of the year - Computing security excellence awards 2023…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 11 | ||||
“We are a cyber and Information security services provider.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 9 | ||||
“At Equilibrium Security, we’re a team of certified Cyber Security experts dedicated to keeping your business safe.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | 8 | ||||
“Cyber security is a subcategory of information security – specifically focusing on protecting computer systems and their components.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | 5 | ||||
“Affordable protection, priceless peace of mind.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | 3 | ||||
“CentriVault, part of the Vault UK Group of companies, has been delivering global information and data security services with compliance for many years.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | Cysec Resource COPartial evidence | 1 | |||
“We offer expertise in information and cyber security.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1 | ||||
“At Sentra, we believe every startup and scale-up deserves access to world-class cybersecurity talent.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1 | ||||
“Cloud Security Solutions Ltd is an Cyber Security Services company and Value Added Reseller (VAR), focusing on Professional Services, Cyber Security and Cloud Security Solutions.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | 1 | ||||
“Ironshare is a provider of Information and Cyber Security services, that focuses on helping its customers to achieve a greater understanding of the risks to their organisation…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | 1 | ||||
“AMSA InfoSec provides independent information security consultancy to public and private sector organisations, specialising in- Security Architecture - Security Audit - Security…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
Showing 13 of 25 network security consulting firms based in Birmingham, United Kingdom
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Network security consulting firms based in Birmingham, United Kingdom at a glance
As of Sep 5, 2026Companies by employee count
Email recency for this list is measured across the whole United Kingdom list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Birmingham, over 25 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 network security consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in Birmingham, United Kingdom whose own description of what they do matches “network security consulting firms”. Matching reads each company's description, not its industry code or its name.
- What we exclude
- Companies whose own description does not clearly place them among network security consulting firms, and records with no verified work email. Companies headquartered outside Birmingham 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 an evidence 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, 77 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 5, 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.
Network security consulting firms by metro in the United Kingdom
- Network security consulting firms in London481
- Network security consulting firms in Manchester53
- Network security consulting firms in Birmingham25
Frequently asked
How many network security consulting firms are there based in Birmingham, United Kingdom?
RevenueBase identified 25 network security consulting firms headquartered in Birmingham, 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?
Cyberq Group, headquartered in Birmingham, tops this list with the largest team on record.
Which city has the most network security consulting firms?
London leads with 481 headquartered companies, followed by Manchester (53) and Birmingham (25).
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 77 verified decision-maker contacts tracked across these 25 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 5, 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.
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