Company lists · Data refreshed September 2026
Top 25 Security engineers based in the United Kingdom
RevenueBase identified 146 company matches for security engineers associated with the United Kingdom as of September 2026 and tracks 1,974 professional contacts across them, including 898 with verified work emails and 113 with mobile numbers. London is the largest hub.
This list covers company matches for security engineers 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 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 25 largest security engineers based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 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 6, 2026 · View company records in RevenueBase | |||||
| 2 | 341 contacts → | ||||
Exact match “We deliver complex fire protection and security solutions.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 3 | 159 contacts → | ||||
Exact match “QCIC is an award-winning global engineering firm specialising in designing, building and running security systems.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 4 | 116 contacts → | ||||
Exact match “TSP has a reputation for providing enterprise security solutions, as well as excellent system integration standards and exceptional aftercare support, since its founding in 1988.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 5 | 95 contacts → | ||||
Exact match “SEP2 is an award-winning UK-based cyber security specialist service provider, powered by a dedicated team of experts available 24/7/365.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 6 | 61 contacts → | ||||
Exact match “MDSec are a UK based consultancy with a passion for information security.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 7 | 55 contacts → | ||||
Exact match “At Logic Fire and Security we design, supply, install, commission and maintain fire detection systems and electronic security systems throughout the UK.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 8 | 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 6, 2026 · View company records in RevenueBase | |||||
| 9 | 24 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 10 | 24 contacts → | ||||
Exact match “More than just a manufacturer, we offer a full service.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 11 | 18 contacts → | ||||
Exact match “Taylor Technology Systems are an established designer, installer and maintainer of security, CCTV, intruder alarms, access control, power and data, and fire detection systems.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 12 | 18 contacts → | ||||
Exact match “Hexiosec is the new name for Red Maple Technologies.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 13 | 16 contacts → | ||||
Exact match “APM Fire and Security are specialists in the field of fire and electronic security systems for commercial and domestic premises backed by more than 27 years experience.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 14 | 15 contacts → | ||||
Exact match “Electronic Security Systems Design, Installation and Maintenance Provider.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 15 | 13 contacts → | ||||
Exact match “ai security specialises in providing long-term security solutions and CCTV systems for any enterprise; we’ll make sure your premises and staff are always protected.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 16 | 13 contacts → | ||||
Exact match “For over 50 years, Centurion Fire & Security has been safeguarding commercial environments with robust, state-of-the-art fire and security systems.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 17 | 10 contacts → | ||||
Exact match “Alphatech Resources is a young company built on the foundations of providing a high standard of candidate as well as customer services level that cannot be beaten.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 18 | 9 contacts → | ||||
Exact match “G2 Security is a security and investigations company based out of Business Centre.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 19 | 8 contacts → | ||||
Exact match “Security gets designed into buildings at RIBA 2-3.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 20 | 8 contacts → | ||||
Exact match “Chubb Systems is one of the leading designers and integrators of security systems identifying and solving complex requirements to critical national infrastructure and large scale…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 21 | 7 contacts → | ||||
Exact match “Engineered Security.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 22 | 7 contacts → | ||||
Exact match “RS Security Consultants We are a team of highly experienced, independent security consultants who work with our Clients to determine best value, bespoke electronic security…” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 23 | 7 contacts → | ||||
Exact match “Founded in Diamond Fire & Security is a family-owned fire engineering and security specialist based in Cannock, serving businesses and organisations across the UK.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 24 | 7 contacts → | ||||
Exact match “Klaatu IT Security is an IT security consultancy and developer.” Recorded in the RevenueBase company graph · Sep 6, 2026 · View company records in RevenueBase | |||||
| 25 | 7 contacts → | ||||
Exact match “Now in our 20th year, Abacus Security specialise in the supply, installation and maintenance of electronic security and fire detection systems, both domestic and commercial.” Recorded in the RevenueBase company graph · Sep 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 “security engineers”. 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 146 security engineers based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 898 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Security engineers based in the United Kingdom at a glance
As of Sep 6, 2026Companies by employee count
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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 “security engineers” 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 898 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 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.
Security engineers 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 “security engineers”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many security engineers are there based in the United Kingdom?
RevenueBase identified 146 company matches for security engineers 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 security engineers?
London leads with 33 company records, followed by Bristol (3) and Leeds (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 898 professional contacts with verified work emails tracked across these 146 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 6, 2026.
Ready to reach these companies? Verified emails and direct dials for all 146 security engineers based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Security engineers by geography
- Security engineers based in the United States
- Security engineers based in France
- Security engineers based in Brazil
- Security engineers based in the Netherlands
- Security engineers based in Germany
- Security engineers based in Australia
- Security engineers based in Canada
- Security engineers based in Poland
- Security engineers based in London, United Kingdom
- Security engineers based in India
- Security engineers based in the United Arab Emirates
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.
More company lists
Company intelligence · public preview
Top 25 security engineers 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 146 matching company records for security engineers based in the United Kingdom, with 1,974 tracked contacts and 898 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 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 25 security engineers 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 |  Securityhqsecurityhq.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 502 contacts → |
“SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Hall & KAYhkfire.co.ukHQ: Ascot / Birmingham / Manchester / Glasgow, United KingdomReported employees: 201-500 | Ascot / Birmingham / Manchester / Glasgow, United Kingdom | 201-500 | Exact match | 341 contacts → |
“We deliver complex fire protection and security solutions.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  QCICqcic-group.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 159 contacts → |
“QCIC is an award-winning global engineering firm specialising in designing, building and running security systems.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Total Security Protection LTDtsp.co.ukHQ: Watford, United KingdomReported employees: 51-200 | Watford, United Kingdom | 51-200 | Exact match | 116 contacts → |
“TSP has a reputation for providing enterprise security solutions, as well as excellent system integration standards and exceptional aftercare support, since its founding in 1988.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Sep2sep2.securityHQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 95 contacts → |
“SEP2 is an award-winning UK-based cyber security specialist service provider, powered by a dedicated team of experts available 24/7/365.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  MDSECmdsec.co.ukHQ: Macclesfield, United KingdomReported employees: 11-50 | Macclesfield, United Kingdom | 11-50 | Exact match | 61 contacts → |
“MDSec are a UK based consultancy with a passion for information security.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Logic Fire And Securitylogicfireandsecurity.comHQ: Knaresborough, United KingdomReported employees: 11-50 | Knaresborough, United Kingdom | 11-50 | Exact match | 55 contacts → |
“At Logic Fire and Security we design, supply, install, commission and maintain fire detection systems and electronic security systems throughout the UK.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Coretech Securitycoretechsec.comHQ: Cheltenham, United KingdomReported employees: 51-200 | Cheltenham, United Kingdom | 51-200 | Exact match | 42 contacts → |
“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 description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Protectorcomms LTDprotectorcomms.co.ukHQ: Caerphilly, United KingdomReported employees: 11-50 | Caerphilly, United Kingdom | 11-50 | Exact match | 24 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 |  CES Security Solutions LTDcessecurity.co.ukHQ: Rochester, United KingdomReported employees: 11-50 | Rochester, United Kingdom | 11-50 | Exact match | 24 contacts → |
“More than just a manufacturer, we offer a full service.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Taylor Technology Systems Limitedtaylortechnologysystems.comHQ: Sidcup, United KingdomReported employees: 51-200 | Sidcup, United Kingdom | 51-200 | Exact match | 18 contacts → |
“Taylor Technology Systems are an established designer, installer and maintainer of security, CCTV, intruder alarms, access control, power and data, and fire detection systems.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Hexiosechexiosec.comHQ: Cheltenham, United KingdomReported employees: 11-50 | Cheltenham, United Kingdom | 11-50 | Exact match | 18 contacts → |
“Hexiosec is the new name for Red Maple Technologies.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  APM Fire And Security Limitedapmfireandsecurity.comHQ: Gloucester, United KingdomReported employees: 11-50 | Gloucester, United Kingdom | 11-50 | Exact match | 16 contacts → |
“APM Fire and Security are specialists in the field of fire and electronic security systems for commercial and domestic premises backed by more than 27 years experience.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | First City Carefirstcitycare.co.uk HQ: Welwyn Garden City, United KingdomReported employees: 51-200 | Welwyn Garden City, United Kingdom | 51-200 | Exact match | 15 contacts → |
“Electronic Security Systems Design, Installation and Maintenance Provider.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  AI Securityai-security.comHQ: Leigh-on-sea, United KingdomReported employees: 11-50 | Leigh-on-sea, United Kingdom | 11-50 | Exact match | 13 contacts → |
“ai security specialises in providing long-term security solutions and CCTV systems for any enterprise; we’ll make sure your premises and staff are always protected.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Centurion Fire & Security LTDcenturion.netHQ: Huddersfield, United KingdomReported employees: 11-50 | Huddersfield, United Kingdom | 11-50 | Exact match | 13 contacts → |
“For over 50 years, Centurion Fire & Security has been safeguarding commercial environments with robust, state-of-the-art fire and security systems.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Alphatech Resourcesalphatechresources.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Alphatech Resources is a young company built on the foundations of providing a high standard of candidate as well as customer services level that cannot be beaten.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  G2 Securityg2securitysystems.comHQ: Scarborough, United KingdomReported employees: 51-200 | Scarborough, United Kingdom | 51-200 | Exact match | 9 contacts → |
“G2 Security is a security and investigations company based out of Business Centre.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Toren Consulting LTDtorenconsulting.co.ukHQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Security gets designed into buildings at RIBA 2-3.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Chubb Systems Limitedchubbfs.comHQ: Blackburn, United KingdomReported employees: 501-1,000 | Blackburn, United Kingdom | 501-1,000 | Exact match | 8 contacts → |
“Chubb Systems is one of the leading designers and integrators of security systems identifying and solving complex requirements to critical national infrastructure and large scale…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  DJ Byers Engineered Security LTDdjbyers.co.ukHQ: Castleford, United KingdomReported employees: 11-50 | Castleford, United Kingdom | 11-50 | Exact match | 7 contacts → |
“Engineered Security.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  RS Security Consultants LTD Winner Ospas Independent Security Consultant 2021rssecurityconsultants.comHQ: Morley, United KingdomReported employees: 1-10 | Morley, United Kingdom | 1-10 | Exact match | 7 contacts → |
“RS Security Consultants We are a team of highly experienced, independent security consultants who work with our Clients to determine best value, bespoke electronic security…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Diamond Fire & Securitydiamondfire.co.ukHQ: Cheslyn Hay, United KingdomReported employees: 11-50 | Cheslyn Hay, United Kingdom | 11-50 | Exact match | 7 contacts → |
“Founded in Diamond Fire & Security is a family-owned fire engineering and security specialist based in Cannock, serving businesses and organisations across the UK.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Klaatu IT Security LTDklaatuitsecurity.comHQ: Swindon, United KingdomReported employees: 1-10 | Swindon, United Kingdom | 1-10 | Exact match | 7 contacts → |
“Klaatu IT Security is an IT security consultancy and developer.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Abacus Securityabacussecurity.co.ukHQ: Norwich, United KingdomReported employees: 1-10 | Norwich, United Kingdom | 1-10 | Exact match | 7 contacts → |
“Now in our 20th year, Abacus Security specialise in the supply, installation and maintenance of electronic security and fire detection systems, both domestic and commercial.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 146 company matches
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Security engineers: dataset insights
September 6, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
145 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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: September 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 ↗
Security engineers by metro
Questions about this company list
What does Exact match mean for security engineers?
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 security engineers did RevenueBase find based in the United Kingdom?
The saved snapshot records 146 matching company records, 1,974 tracked contacts and 898 verified emails. The public preview displays 25 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: September 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
Security engineers by geography
- Security engineers based in the United States
- Security engineers based in France
- Security engineers based in Brazil
- Security engineers based in the Netherlands
- Security engineers based in Germany
- Security engineers based in Australia
- Security engineers based in Canada
- Security engineers based in Poland
- Security engineers based in London, United Kingdom
- Security engineers based in India
- Security engineers based in the United Arab Emirates
Browse the directory
Cite this list
RevenueBase Data Team. Top 25 security engineers based in the United Kingdom. Snapshot: September 6, 2026. https://revenuebase.ai/companies/security-engineers/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
Company intelligence · public preview
Top 25 security engineers based in the United Kingdom
RevenueBase records 146 matching company records for security engineers based in the United Kingdom, with 1,974 tracked contacts and 898 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: September 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 25 security engineers 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 | Securityhqsecurityhq.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 502 contacts → |
“SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Hall & KAYhkfire.co.uk HQ: Ascot / Birmingham / Manchester / Glasgow, United KingdomReported employees: 201-500 | Ascot / Birmingham / Manchester / Glasgow, United Kingdom | 201-500 | Exact match | 341 contacts → |
“We deliver complex fire protection and security solutions.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | QCICqcic-group.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 159 contacts → |
“QCIC is an award-winning global engineering firm specialising in designing, building and running security systems.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Total Security Protection LTDtsp.co.uk HQ: Watford, United KingdomReported employees: 51-200 | Watford, United Kingdom | 51-200 | Exact match | 116 contacts → |
“TSP has a reputation for providing enterprise security solutions, as well as excellent system integration standards and exceptional aftercare support, since its founding in 1988.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Sep2sep2.security HQ: Leeds, United KingdomReported employees: 51-200 | Leeds, United Kingdom | 51-200 | Exact match | 95 contacts → |
“SEP2 is an award-winning UK-based cyber security specialist service provider, powered by a dedicated team of experts available 24/7/365.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | MDSECmdsec.co.uk HQ: Macclesfield, United KingdomReported employees: 11-50 | Macclesfield, United Kingdom | 11-50 | Exact match | 61 contacts → |
“MDSec are a UK based consultancy with a passion for information security.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Logic Fire And Securitylogicfireandsecurity.com HQ: Knaresborough, United KingdomReported employees: 11-50 | Knaresborough, United Kingdom | 11-50 | Exact match | 55 contacts → |
“At Logic Fire and Security we design, supply, install, commission and maintain fire detection systems and electronic security systems throughout the UK.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Coretech Securitycoretechsec.com HQ: Cheltenham, United KingdomReported employees: 51-200 | Cheltenham, United Kingdom | 51-200 | Exact match | 42 contacts → |
“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 description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Protectorcomms LTDprotectorcomms.co.uk HQ: Caerphilly, United KingdomReported employees: 11-50 | Caerphilly, United Kingdom | 11-50 | Exact match | 24 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 10 | CES Security Solutions LTDcessecurity.co.uk HQ: Rochester, United KingdomReported employees: 11-50 | Rochester, United Kingdom | 11-50 | Exact match | 24 contacts → |
“More than just a manufacturer, we offer a full service.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Taylor Technology Systems Limitedtaylortechnologysystems.com HQ: Sidcup, United KingdomReported employees: 51-200 | Sidcup, United Kingdom | 51-200 | Exact match | 18 contacts → |
“Taylor Technology Systems are an established designer, installer and maintainer of security, CCTV, intruder alarms, access control, power and data, and fire detection systems.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Hexiosechexiosec.com HQ: Cheltenham, United KingdomReported employees: 11-50 | Cheltenham, United Kingdom | 11-50 | Exact match | 18 contacts → |
“Hexiosec is the new name for Red Maple Technologies.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | APM Fire And Security Limitedapmfireandsecurity.com HQ: Gloucester, United KingdomReported employees: 11-50 | Gloucester, United Kingdom | 11-50 | Exact match | 16 contacts → |
“APM Fire and Security are specialists in the field of fire and electronic security systems for commercial and domestic premises backed by more than 27 years experience.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | First City Carefirstcitycare.co.uk HQ: Welwyn Garden City, United KingdomReported employees: 51-200 | Welwyn Garden City, United Kingdom | 51-200 | Exact match | 15 contacts → |
“Electronic Security Systems Design, Installation and Maintenance Provider.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | AI Securityai-security.com HQ: Leigh-on-sea, United KingdomReported employees: 11-50 | Leigh-on-sea, United Kingdom | 11-50 | Exact match | 13 contacts → |
“ai security specialises in providing long-term security solutions and CCTV systems for any enterprise; we’ll make sure your premises and staff are always protected.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Centurion Fire & Security LTDcenturion.net HQ: Huddersfield, United KingdomReported employees: 11-50 | Huddersfield, United Kingdom | 11-50 | Exact match | 13 contacts → |
“For over 50 years, Centurion Fire & Security has been safeguarding commercial environments with robust, state-of-the-art fire and security systems.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Alphatech Resourcesalphatechresources.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 10 contacts → |
“Alphatech Resources is a young company built on the foundations of providing a high standard of candidate as well as customer services level that cannot be beaten.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | G2 Securityg2securitysystems.com HQ: Scarborough, United KingdomReported employees: 51-200 | Scarborough, United Kingdom | 51-200 | Exact match | 9 contacts → |
“G2 Security is a security and investigations company based out of Business Centre.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Toren Consulting LTDtorenconsulting.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 8 contacts → |
“Security gets designed into buildings at RIBA 2-3.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Chubb Systems Limitedchubbfs.com HQ: Blackburn, United KingdomReported employees: 501-1,000 | Blackburn, United Kingdom | 501-1,000 | Exact match | 8 contacts → |
“Chubb Systems is one of the leading designers and integrators of security systems identifying and solving complex requirements to critical national infrastructure and large scale…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | DJ Byers Engineered Security LTDdjbyers.co.uk HQ: Castleford, United KingdomReported employees: 11-50 | Castleford, United Kingdom | 11-50 | Exact match | 7 contacts → |
“Engineered Security.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | RS Security Consultants LTD Winner Ospas Independent Security Consultant 2021rssecurityconsultants.com HQ: Morley, United KingdomReported employees: 1-10 | Morley, United Kingdom | 1-10 | Exact match | 7 contacts → |
“RS Security Consultants We are a team of highly experienced, independent security consultants who work with our Clients to determine best value, bespoke electronic security…” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Diamond Fire & Securitydiamondfire.co.uk HQ: Cheslyn Hay, United KingdomReported employees: 11-50 | Cheslyn Hay, United Kingdom | 11-50 | Exact match | 7 contacts → |
“Founded in Diamond Fire & Security is a family-owned fire engineering and security specialist based in Cannock, serving businesses and organisations across the UK.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Klaatu IT Security LTDklaatuitsecurity.com HQ: Swindon, United KingdomReported employees: 1-10 | Swindon, United Kingdom | 1-10 | Exact match | 7 contacts → |
“Klaatu IT Security is an IT security consultancy and developer.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Abacus Securityabacussecurity.co.uk HQ: Norwich, United KingdomReported employees: 1-10 | Norwich, United Kingdom | 1-10 | Exact match | 7 contacts → |
“Now in our 20th year, Abacus Security specialise in the supply, installation and maintenance of electronic security and fire detection systems, both domestic and commercial.” Recorded description excerpt · September 6, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 146 company matches
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Security engineers: dataset insights
September 6, 2026These summaries describe recorded coverage in this saved dataset. Coverage describes records in RevenueBase, rather than a census of every business in this market.
Reported company sizes
145 records in the displayed employee bands.
1 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Freshness & accuracy
How recently the business emails on this list were verified
Email last verified
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.
Coverage describes records in RevenueBase, rather than a census of every business in this market.
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: September 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 ↗
Security engineers by metro
Questions about this company list
What does Exact match mean for security engineers?
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 security engineers did RevenueBase find based in the United Kingdom?
The saved snapshot records 146 matching company records, 1,974 tracked contacts and 898 verified emails. The public preview displays 25 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: September 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.
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Cite this list
RevenueBase Data Team. Top 25 security engineers based in the United Kingdom. Snapshot: September 6, 2026. https://revenuebase.ai/companies/security-engineers/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗