Company lists · Data refreshed September 2026

Top 25 Grid cybersecurity consultants based in the United Kingdom

Name: Grid cybersecurity consultants 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 203 companies tracked

RevenueBase identified 203 company matches for grid cybersecurity consultants associated with the United Kingdom as of September 2026 and tracks 2,796 professional contacts across them, including 764 with verified work emails. London is the largest hub.

This list covers company matches for grid cybersecurity consultants 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

203Companies

2,796Contacts tracked

764Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest grid cybersecurity consultants based in the United Kingdom

Ranked by team size

Top 25 of 203 company matches for grid cybersecurity consultants 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	Bridewell	Exact match	Reading, United KingdomHQ recorded Sep 28, 2026	201-500	303 contacts →
	Exact match “Bridewell is the trusted cyber security partner for organisations operating within Critical National Infrastructure (CNI), as well as companies who want the highest standard of…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
2	Cyberfort	Exact match	Thatcham, United KingdomHQ recorded Sep 28, 2026	51-200	159 contacts →
	Exact match “At Cyberfort we are passionate about the cyber security services we deliver for our customers which keeps their people, data, systems and technology infrastructure secure…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
3	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
4	Reliance Cyber	Exact match	Waterloo, United KingdomHQ recorded Sep 28, 2026	51-200	80 contacts →
	Exact match “At Reliance Cyber, we believe in truly partnering with our customers.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
5	Cyro Cyber	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	62 contacts →
	Exact match “Cyro Cyber are your cyber security Guardians.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
6	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
7	Hexegic	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	52 contacts →
	Exact match “At Hexegic we are not just passionate about protecting data through our Cyber services we are passionate about helping companies release the potential of the data they hold…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
8	Mitigo Group	Exact match	Cheadle, United KingdomHQ recorded Sep 28, 2026	51-200	38 contacts →
	Exact match “Mitigo Group keeps professional services firms safe from cyberattack and operationally resilient.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
9	Barrier Networks	Exact match	Glasgow, United KingdomHQ recorded Sep 28, 2026	11-50	34 contacts →
	Exact match “We are your strategic cybersecurity partner – going beyond traditional models to deliver agile, expert-led protection tailored to the needs of regulated industries and critical…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
10	Intrinsic Security	Exact match	Peterborough, United KingdomHQ recorded Sep 28, 2026	51-200	32 contacts →
	Exact match “Intrinsic Security is a UK-headquartered cybersecurity firm delivering 24/7 threat detection, incident response, and resilience across cloud, hybrid, OT, IoT, and identity…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
11	Procheckup PCU	Exact match	Portsmouth, United KingdomHQ recorded Sep 28, 2026	11-50	29 contacts →
	Exact match “Imagine a world where cyber threats are simply another challenge that you're fully equipped to handle.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
12	Cyber Rescue Alliance	Exact match	London, United KingdomHQ recorded Sep 28, 2026	1-10	29 contacts →
	Exact match “Cyber Rescue is a leading specialist in helping Boardroom Executives to measure, monitor and mitigate potential harm from cyber-attacks.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
13	Tekgem	Exact match	Sedgefield, United KingdomHQ recorded Sep 28, 2026	11-50	26 contacts →
	Exact match “Tekgem bridges the gap between Information Technology (IT) and Operational Technology (OT).” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
14	Cyber Security Specialists	Exact match	Altrincham, United KingdomHQ recorded Sep 28, 2026	11-50	26 contacts →
	Exact match “Based in Manchester UK, we are an independent Cyber Security Consultancy providing Security services across a wide range of markets, from multi-national Corporate Organisations…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
15	Gradian	Exact match	Farnborough, United KingdomHQ recorded Sep 28, 2026	11-50	22 contacts →
	Exact match “Gradian offers pre-sales support, bespoke consultancy and managed services to protect your most critical assets from cyber threats.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
16	Templar Executives	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	21 contacts →
	Exact match “Templar Executives is an award winning, international Cyber Security advisory services and solutions company operating at the highest levels across the public and private sectors.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
17	Information Risk Management IRM	Exact match	Cheltenham, United KingdomHQ recorded Sep 28, 2026	51-200	20 contacts →
	Exact match “IRM, part of the Capgemini Group, works to defend organisations against cyber threats.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
18	Razorthorn Security	Exact match	Tunbridge Wells, United KingdomHQ recorded Sep 28, 2026	11-50	19 contacts →
	Exact match “Razorthorn Security is a specialist cybersecurity consultancy founded in 2007, with nearly two decades of experience helping organisations protect their data, their systems and…” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
19	Roadnight Taylor Certified B Corp	Exact match	Burford, United KingdomHQ recorded Sep 28, 2026	1-10	19 contacts →
	Exact match “Complex electricity grid connection challenges can derail critical infrastructure projects worth hundreds of millions.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
20	DEV Null Security	Exact match	Edinburgh, United KingdomHQ recorded Sep 28, 2026	11-50	17 contacts →
	Exact match “We are a cyber security consultancy that specialises in security solution architecture, engineering, implementation and operational support.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
21	Sinevis	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	17 contacts →
	Exact match “We are a leading cybersecurity services organization with more than a decade of proven expertise in consulting, solution implementation and managed services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
22	David Lynas Consulting	Exact match	Belfast, United KingdomHQ recorded Sep 28, 2026	11-50	16 contacts →
	Exact match “Cybersecurity should be integrated cohesively across the enterprise, promoting consistency, scalability, and efficiency.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
23	Datasixth Consulting	Exact match	London, United KingdomHQ recorded Sep 28, 2026	51-200	15 contacts →
	Exact match “Who We Are DataSixth delivers Cybersecurity Intelligence.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
24	Socguardians LTD	Exact match	London, United KingdomHQ recorded Sep 28, 2026	11-50	13 contacts →
	Exact match “Our mission at SOCGuardians is to empower organizations to operate confidently in a digital world by providing cutting-edge cybersecurity services.” Recorded in the RevenueBase company graph · Sep 28, 2026 · View company records in RevenueBase
25	Securious	Exact match	Exeter, United KingdomHQ recorded Sep 28, 2026	11-50	12 contacts →
	Exact match “We’re on a mission to make cyber security engaging, accessible and easy.” 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 “grid cybersecurity consultants”. 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 203 grid cybersecurity consultants based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 764 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Grid cybersecurity consultants based in the United Kingdom at a glance

As of Sep 28, 2026

27.3%Verified-email coverage

13.8Average contacts per company

1-10Median size (employees)

36.9%Largest-city concentration · London

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

136

11-50

51-200

201-500

501-1,000

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 203 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 “grid cybersecurity consultants” 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 764 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.

Grid cybersecurity consultants by metro

Grid cybersecurity consultants in London75

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 “grid cybersecurity consultants”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many grid cybersecurity consultants are there based in the United Kingdom?

RevenueBase identified 203 company matches for grid cybersecurity consultants 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?

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

Which city has the most grid cybersecurity consultants?

London leads with 75 company records, followed by Cheltenham (7) and Manchester (7).

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 764 professional contacts with verified work emails tracked across these 203 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.

Ready to reach these companies? Verified emails and direct dials for all 203 grid cybersecurity consultants based in the United Kingdom. Start with a free account, no credit card.

Download this list →

Related lists

Grid cybersecurity consultants by geography

Browse the directory

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.