Company lists · Data refreshed November 2026
Top 24 Virtual ciso providers based in the United Kingdom
RevenueBase identified 66 company matches for virtual ciso providers associated with the United Kingdom as of November 2026 and tracks 159 professional contacts across them, including 59 with verified work emails. London is the largest hub.
This list covers company matches for virtual ciso providers 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 November 6, 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 24 largest virtual ciso providers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 14 contacts → | ||||
Exact match “Risk Crew is known for their vision, innovative thinking and facility to embrace change.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 2 | 6 contacts → | ||||
Exact match “Criticalis are network security specialists providing expertise through professional services and robust innovative managed services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 3 | 3 contacts → | ||||
Exact match “We provide IT Leadership Services coupled with Cyber Security, Information Compliance Audits and Certification (NCSC Cyber Essentials and IASME Cyberassured - ISO27001…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 4 | 2 contacts → | ||||
Exact match “invitise is a Cyber Security Capability Partner.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 5 | 2 contacts → | ||||
Exact match “We provide security support to organisations who help improve the world we live in.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 6 | 2 contacts → | ||||
Exact match “Rougemont Security is a trusted partner in safeguarding the digital assets and sensitive information of small and medium-sized businesses (SMBs).” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 7 | 2 contacts → | ||||
Exact match “Security for everyone” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 8 | 2 contacts → | ||||
Exact match “Helping you do business securely” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 9 | 2 contacts → | ||||
Exact match “Engage senior executives and technology teams in organizations to help understand then improve their cybersecurity maturity.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 10 | 2 contacts → | ||||
Exact match “At Resilience Insights, we take pride in safeguarding your critical business processes, information, and digital assets.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 11 | 2 contacts → | ||||
Exact match “Move Beyond Tactical Security: Cyber Transformation.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 12 | 2 contacts → | ||||
Exact match “With decades of experience, we stand as a trusted and innovative partner in Cyber Security Consultancy and Managed Solutions, serving a diverse range of clients.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 13 | 2 contacts → | ||||
Exact match “Metaluxo Information Security is a small security consultancy providing services of virtual / interim CISO (Chief Information Security Officer) as well as executive security…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 14 | 2 contacts → | ||||
Exact match “Awareness of Cyber Security in general is due to the growing volume and variety of cyber-attacks we read about every day and its only getting worse.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 15 | 2 contacts → | ||||
Exact match “4FOX Security is a UK-based cyber security consultancy built on one principle: clarity over complexity.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 16 | 2 contacts → | ||||
Exact match “GuardCyber360 is a small consultancy firm based in Edinburgh, dedicated to providing top-notch cybersecurity services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 17 | 1 contacts → | ||||
Exact match “ComplianceLogic Ltd is driven by the collective leadership and expertise of every member of our team.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 18 | 1 contacts → | ||||
Exact match “Fortis has been established to provide companies with invaluable information security knowledge & expertise, which will provide them with unparalleled protection from ever-present…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 19 | 1 contacts → | ||||
Exact match “Harben Consulting helps organisations make practical, defensible progress across technology, governance, and information security.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 20 | 1 contacts → | ||||
Exact match “AWARE is an open-source security control plane for autonomous AI agents, built by Good CISO Limited.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 21 | 1 contacts → | ||||
Exact match “A Virtual IT Director service for SMEs.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 22 | 1 contacts → | ||||
Exact match “zeroinfosec is a cybersecurity services firm focused on helping organisations strengthen their security posture and manage risk effectively.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 23 | 1 contacts → | ||||
Exact match “SOPHISTEC LIMITED is a management consulting company based out of BRISTOL & BATH SCIENCE PARK DIRAC CRESCENT, EMERSON'S GREEN, United Kingdom.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase | |||||
| 24 | 1 contacts → | ||||
Exact match “At Neoteric Networks, we provide expert cybersecurity guidance and support to small and mid-sized businesses.” Recorded in the RevenueBase company graph · Nov 6, 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 “virtual ciso providers”. 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 24 of 66 virtual ciso providers based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 59 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Virtual ciso providers based in the United Kingdom at a glance
As of Nov 6, 2026Companies by employee count
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 66 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 “virtual ciso providers” 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 59 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 November 6, 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.
Virtual ciso providers 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 “virtual ciso providers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many virtual ciso providers are there based in the United Kingdom?
RevenueBase identified 66 company matches for virtual ciso providers associated with the United Kingdom as of November 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?
Risk Crew tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most virtual ciso providers?
London leads with 26 company records, followed by Edinburgh (3) and Manchester (3).
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 59 professional contacts with verified work emails tracked across these 66 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 November 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 66 virtual ciso providers based in the United Kingdom. Start with a free account, no credit card.
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Virtual ciso providers by geography
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.
More company lists
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- New lists
- Virtual ciso providers based in London, United Kingdom
- Virtual ciso providers based in Australia
- Virtual ciso providers based in Canada
- Virtual ciso providers based in France
- Virtual ciso providers based in India
- Virtual ciso providers based in the United States
Company intelligence · public preview
Top 24 virtual ciso providers based in the United Kingdom
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 66 matching company records for virtual ciso providers based in the United Kingdom, with 159 tracked contacts and 59 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 24 virtual ciso providers based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Risk Crewriskcrew.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Risk Crew is known for their vision, innovative thinking and facility to embrace change.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Criticaliscriticalis.netHQ: Milton Keynes, United KingdomReported employees: 1-10 | Milton Keynes, United Kingdom | 1-10 | Exact match | 6 contacts → |
“Criticalis are network security specialists providing expertise through professional services and robust innovative managed services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Digital Attitudedigitalattitude.co.ukHQ: Northamptonshire, United KingdomReported employees: 1-10 | Northamptonshire, United Kingdom | 1-10 | Exact match | 3 contacts → |
“We provide IT Leadership Services coupled with Cyber Security, Information Compliance Audits and Certification (NCSC Cyber Essentials and IASME Cyberassured - ISO27001…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Invitise LTDinvitise.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“invitise is a Cyber Security Capability Partner.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Practical Infosecpractical-infosec.comHQ: Sheffield, United KingdomReported employees: 1-10 | Sheffield, United Kingdom | 1-10 | Exact match | 2 contacts → |
“We provide security support to organisations who help improve the world we live in.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Rougemont Securityrougemontsecurity.comHQ: Basingstoke, United KingdomReported employees: 1-10 | Basingstoke, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Rougemont Security is a trusted partner in safeguarding the digital assets and sensitive information of small and medium-sized businesses (SMBs).” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  The Virtual Ciso Limitedthevirtualciso.ioHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Security for everyone” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Cisoselectcisoselect.co.ukHQ: Leeds, United KingdomReported employees: 1-10 | Leeds, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Helping you do business securely” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Objects Consultingobjectsconsulting.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Engage senior executives and technology teams in organizations to help understand then improve their cybersecurity maturity.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Resilience Insightsresilience-insights.co.ukHQ: Windsor, United KingdomReported employees: 1-10 | Windsor, United Kingdom | 1-10 | Exact match | 2 contacts → |
“At Resilience Insights, we take pride in safeguarding your critical business processes, information, and digital assets.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  vrtue.iovrtue.ioHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Move Beyond Tactical Security: Cyber Transformation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Keep Information Security Serviceswearekeep.co.ukHQ: Manchester, United KingdomReported employees: 1-10 | Manchester, United Kingdom | 1-10 | Exact match | 2 contacts → |
“With decades of experience, we stand as a trusted and innovative partner in Cyber Security Consultancy and Managed Solutions, serving a diverse range of clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Metaluxo Information Securitymetaluxo.comHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Metaluxo Information Security is a small security consultancy providing services of virtual / interim CISO (Chief Information Security Officer) as well as executive security…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Cyberdyn Security Limitedcyberdyn.co.ukHQ: St. Albans, United KingdomReported employees: 1-10 | St. Albans, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Awareness of Cyber Security in general is due to the growing volume and variety of cyber-attacks we read about every day and its only getting worse.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  4fox Security4fox.ukHQ: Weston-super-mare, United KingdomReported employees: 1-10 | Weston-super-mare, United Kingdom | 1-10 | Exact match | 2 contacts → |
“4FOX Security is a UK-based cyber security consultancy built on one principle: clarity over complexity.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Guardcyber360guardcyber360.comHQ: Edinburgh, United KingdomReported employees: 1-10 | Edinburgh, United Kingdom | 1-10 | Exact match | 2 contacts → |
“GuardCyber360 is a small consultancy firm based in Edinburgh, dedicated to providing top-notch cybersecurity services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Compliancelogic LTDcompliancelogic.ioHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 1 contacts → |
“ComplianceLogic Ltd is driven by the collective leadership and expertise of every member of our team.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Fortis Information Security & Risk Managementfortiscyber.co.uk HQ: Milton Keynes, United KingdomReported employees: 11-50 | Milton Keynes, United Kingdom | 11-50 | Exact match | 1 contacts → |
“Fortis has been established to provide companies with invaluable information security knowledge & expertise, which will provide them with unparalleled protection from ever-present…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Harben Consultingharben.ukHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 1 contacts → |
“Harben Consulting helps organisations make practical, defensible progress across technology, governance, and information security.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Good Cisogoodciso.orgHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 1 contacts → |
“AWARE is an open-source security control plane for autonomous AI agents, built by Good CISO Limited.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  The Virtual IT Directorthe-vitd.co.ukHQ: Wakefield, United KingdomReported employees: 1-10 | Wakefield, United Kingdom | 1-10 | Exact match | 1 contacts → |
“A Virtual IT Director service for SMEs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Zeroinfoseczeroinfosec.comHQ: Edinburgh, United KingdomReported employees: 1-10 | Edinburgh, United Kingdom | 1-10 | Exact match | 1 contacts → |
“zeroinfosec is a cybersecurity services firm focused on helping organisations strengthen their security posture and manage risk effectively.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Sophistec Limitedsophistec.co.ukHQ: Emerson's Green, United KingdomReported employees: 1-10 | Emerson's Green, United Kingdom | 1-10 | Exact match | 1 contacts → |
“SOPHISTEC LIMITED is a management consulting company based out of BRISTOL & BATH SCIENCE PARK DIRAC CRESCENT, EMERSON'S GREEN, United Kingdom.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Neoteric Networksneotericnetworks.comHQ: Manchester, United KingdomReported employees: 1-10 | Manchester, United Kingdom | 1-10 | Exact match | 1 contacts → |
“At Neoteric Networks, we provide expert cybersecurity guidance and support to small and mid-sized businesses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 66 company matches
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Virtual ciso providers: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
66 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 66 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Virtual ciso providers by metro
Questions about this company list
What does Exact match mean for virtual ciso providers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many virtual ciso providers did RevenueBase find based in the United Kingdom?
The saved snapshot records 66 matching company records, 159 tracked contacts and 59 verified emails. The public preview displays 24 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Virtual ciso providers by geography
Cite this list
RevenueBase Data Team. Top 24 virtual ciso providers based in the United Kingdom. Snapshot: November 6, 2026. https://revenuebase.ai/companies/virtual-ciso-providers/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Virtual ciso providers based in London, United Kingdom
- Virtual ciso providers based in Australia
- Virtual ciso providers based in Canada
- Virtual ciso providers based in France
- Virtual ciso providers based in India
- Virtual ciso providers based in the United States
Company intelligence · public preview
Top 24 virtual ciso providers based in the United Kingdom
RevenueBase records 66 matching company records for virtual ciso providers based in the United Kingdom, with 159 tracked contacts and 59 verified work emails.
This public preview shows 24 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: November 6, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 24 virtual ciso providers based in the United Kingdom
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Risk Crewriskcrew.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 14 contacts → |
“Risk Crew is known for their vision, innovative thinking and facility to embrace change.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Criticaliscriticalis.net HQ: Milton Keynes, United KingdomReported employees: 1-10 | Milton Keynes, United Kingdom | 1-10 | Exact match | 6 contacts → |
“Criticalis are network security specialists providing expertise through professional services and robust innovative managed services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Digital Attitudedigitalattitude.co.uk HQ: Northamptonshire, United KingdomReported employees: 1-10 | Northamptonshire, United Kingdom | 1-10 | Exact match | 3 contacts → |
“We provide IT Leadership Services coupled with Cyber Security, Information Compliance Audits and Certification (NCSC Cyber Essentials and IASME Cyberassured - ISO27001…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Invitise LTDinvitise.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“invitise is a Cyber Security Capability Partner.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Practical Infosecpractical-infosec.com HQ: Sheffield, United KingdomReported employees: 1-10 | Sheffield, United Kingdom | 1-10 | Exact match | 2 contacts → |
“We provide security support to organisations who help improve the world we live in.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Rougemont Securityrougemontsecurity.com HQ: Basingstoke, United KingdomReported employees: 1-10 | Basingstoke, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Rougemont Security is a trusted partner in safeguarding the digital assets and sensitive information of small and medium-sized businesses (SMBs).” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | The Virtual Ciso Limitedthevirtualciso.io HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Security for everyone” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Cisoselectcisoselect.co.uk HQ: Leeds, United KingdomReported employees: 1-10 | Leeds, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Helping you do business securely” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Objects Consultingobjectsconsulting.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Engage senior executives and technology teams in organizations to help understand then improve their cybersecurity maturity.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Resilience Insightsresilience-insights.co.uk HQ: Windsor, United KingdomReported employees: 1-10 | Windsor, United Kingdom | 1-10 | Exact match | 2 contacts → |
“At Resilience Insights, we take pride in safeguarding your critical business processes, information, and digital assets.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | vrtue.iovrtue.io HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Move Beyond Tactical Security: Cyber Transformation.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Keep Information Security Serviceswearekeep.co.uk HQ: Manchester, United KingdomReported employees: 1-10 | Manchester, United Kingdom | 1-10 | Exact match | 2 contacts → |
“With decades of experience, we stand as a trusted and innovative partner in Cyber Security Consultancy and Managed Solutions, serving a diverse range of clients.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Metaluxo Information Securitymetaluxo.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Metaluxo Information Security is a small security consultancy providing services of virtual / interim CISO (Chief Information Security Officer) as well as executive security…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Cyberdyn Security Limitedcyberdyn.co.uk HQ: St. Albans, United KingdomReported employees: 1-10 | St. Albans, United Kingdom | 1-10 | Exact match | 2 contacts → |
“Awareness of Cyber Security in general is due to the growing volume and variety of cyber-attacks we read about every day and its only getting worse.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | 4fox Security4fox.uk HQ: Weston-super-mare, United KingdomReported employees: 1-10 | Weston-super-mare, United Kingdom | 1-10 | Exact match | 2 contacts → |
“4FOX Security is a UK-based cyber security consultancy built on one principle: clarity over complexity.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Guardcyber360guardcyber360.com HQ: Edinburgh, United KingdomReported employees: 1-10 | Edinburgh, United Kingdom | 1-10 | Exact match | 2 contacts → |
“GuardCyber360 is a small consultancy firm based in Edinburgh, dedicated to providing top-notch cybersecurity services.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Compliancelogic LTDcompliancelogic.io HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 1 contacts → |
“ComplianceLogic Ltd is driven by the collective leadership and expertise of every member of our team.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Fortis Information Security & Risk Managementfortiscyber.co.uk HQ: Milton Keynes, United KingdomReported employees: 11-50 | Milton Keynes, United Kingdom | 11-50 | Exact match | 1 contacts → |
“Fortis has been established to provide companies with invaluable information security knowledge & expertise, which will provide them with unparalleled protection from ever-present…” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Harben Consultingharben.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 1 contacts → |
“Harben Consulting helps organisations make practical, defensible progress across technology, governance, and information security.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Good Cisogoodciso.org HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 1 contacts → |
“AWARE is an open-source security control plane for autonomous AI agents, built by Good CISO Limited.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | The Virtual IT Directorthe-vitd.co.uk HQ: Wakefield, United KingdomReported employees: 1-10 | Wakefield, United Kingdom | 1-10 | Exact match | 1 contacts → |
“A Virtual IT Director service for SMEs.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Zeroinfoseczeroinfosec.com HQ: Edinburgh, United KingdomReported employees: 1-10 | Edinburgh, United Kingdom | 1-10 | Exact match | 1 contacts → |
“zeroinfosec is a cybersecurity services firm focused on helping organisations strengthen their security posture and manage risk effectively.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Sophistec Limitedsophistec.co.uk HQ: Emerson's Green, United KingdomReported employees: 1-10 | Emerson's Green, United Kingdom | 1-10 | Exact match | 1 contacts → |
“SOPHISTEC LIMITED is a management consulting company based out of BRISTOL & BATH SCIENCE PARK DIRAC CRESCENT, EMERSON'S GREEN, United Kingdom.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Neoteric Networksneotericnetworks.com HQ: Manchester, United KingdomReported employees: 1-10 | Manchester, United Kingdom | 1-10 | Exact match | 1 contacts → |
“At Neoteric Networks, we provide expert cybersecurity guidance and support to small and mid-sized businesses.” Recorded description excerpt · November 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 24 of 66 company matches
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Virtual ciso providers: dataset insights
November 6, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
66 records in the displayed employee bands.
0 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
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 66 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 6, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Virtual ciso providers by metro
Questions about this company list
What does Exact match mean for virtual ciso providers?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many virtual ciso providers did RevenueBase find based in the United Kingdom?
The saved snapshot records 66 matching company records, 159 tracked contacts and 59 verified emails. The public preview displays 24 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: November 6, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
Related lists
Virtual ciso providers by geography
Cite this list
RevenueBase Data Team. Top 24 virtual ciso providers based in the United Kingdom. Snapshot: November 6, 2026. https://revenuebase.ai/companies/virtual-ciso-providers/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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