Company lists · Data refreshed September 2026
Top 25 Application security staffing companies based in the United Kingdom
RevenueBase identified 155 company matches for application security staffing companies associated with the United Kingdom as of September 2026 and tracks 1,162 professional contacts across them, including 226 with verified work emails. London is the largest hub.
This list covers company matches for application security staffing companies 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 27, 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 application security staffing companies based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 244 contacts → | ||||
Exact match “Tangent International Integrated Talent and Delivery across Technology and Communications.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 2 | 82 contacts → | ||||
Exact match “OnlyGeniuses, Is a 12 year old UK based IT company which works only with the top 1% of IT Talent to add immense value to our clients.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 3 | 57 contacts → | ||||
Exact match “We deliver services in Cybersecurity, Application Security and DevOps and are trusted by some of the world’s leading brands to maximise the value of their security investments and…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 4 | 49 contacts → | ||||
Exact match “Damia Group is a trusted talent solutions partner with over 30 years of experience supporting security-cleared environments, including defence, government, space, and aerospace.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 5 | 26 contacts → | ||||
Exact match “DCL Search reduce clients risk by identifying attracting the very best Cyber / Information Security Talent in the industry.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 6 | 23 contacts → | ||||
Exact match “At Intaso we are firm believers that not every business has the same Cyber/ Information Security talent shortages and demands a bespoke offering.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 7 | 20 contacts → | ||||
Exact match “We connect top cybersecurity and eDiscovery talent at Iceberg Cyber Security with the most innovative companies worldwide.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 8 | 19 contacts → | ||||
Exact match “Halo I.S is not just another cybersecurity organization based in the UK; we're a testament to evolution and client-centric innovation.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 9 | 17 contacts → | ||||
Exact match “We are a leading cybersecurity services organization with more than a decade of proven expertise in consulting, solution implementation and managed services.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 10 | 16 contacts → | ||||
Exact match “InfoSec People is a specialist Cyber Security and Information Security recruitment business.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 11 | 13 contacts → | ||||
Exact match “At Mentmore we understand that hiring exceptional people is important for our clients but that it is only one part of their job.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 12 | 13 contacts → | ||||
Exact match “We are specialist staffing consultancy, working with many of the largest and most dynamic clients across the UK, Europe & US.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 13 | 12 contacts → | ||||
Exact match “Since 2005, Marcus Donald People have been consistently delivering some of the most technically sought-after Cyber Security, Information Security, IP & Enterprise Networking…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 14 | 11 contacts → | ||||
Exact match “Disclosure Cybersecurity Ltd is a specialist cyber security company, formed by professionals with extensive experience and wide exposure in the cyber security market.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 15 | 11 contacts → | ||||
Exact match “We are on a mission to make people happier at work.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 16 | 11 contacts → | ||||
Exact match “At BN1 Security we concentrate on selecting and building lasting relationships with the right clients and not on too rapid expansion to the detriment of delivering a high quality…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 17 | 10 contacts → | ||||
Exact match “Cyber Security Jobsite is Job Board dedicated to assisting clients and agencies recruiting candidates within the Cyber Security marketplace.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 18 | 9 contacts → | ||||
Exact match “Flexible Talent Solutions: We provide highly skilled cybersecurity professionals to meet your specific needs, whether for long-term strategic projects or short-term, critical…” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 19 | 6 contacts → | ||||
Exact match “We help tech teams hire well.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 20 | 6 contacts → | ||||
Exact match “Welcome to DevNack - Your trusted partner for bespoke software solutions.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 21 | 6 contacts → | ||||
Exact match “At Sectech Solutions, we don’t just fill roles, we provide trusted, quality-driven people solutions to strengthen your organization’s cybersecurity capabilities.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 22 | 6 contacts → | ||||
Exact match “Specialist in the recruitment of Cyber Security professionals globally.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 23 | 6 contacts → | ||||
Exact match “Secure Debug: Your Full-Spectrum Cybersecurity Guardian!” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 24 | 6 contacts → | ||||
Exact match “An industry with a skills gap that’s increasing year on year needs a talent specialist at the forefront to create real opportunity.” Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase | |||||
| 25 | 5 contacts → | ||||
Exact match “Cipher Cyber is a boutique cyber security recruitment service that is tailored to your individual requirements.” Recorded in the RevenueBase company graph · Sep 27, 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 “application security staffing companies”. 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 155 application security staffing companies based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 226 tracked professional contacts with verified work emails. Direct dials are available where recorded.
Free signup · no credit card
Application security staffing companies based in the United Kingdom at a glance
As of Sep 27, 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 155 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 “application security staffing companies” 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 226 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 27, 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.
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 “application security staffing companies”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many application security staffing companies are there based in the United Kingdom?
RevenueBase identified 155 company matches for application security staffing companies 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?
Tangent International tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most application security staffing companies?
London leads with 69 company records, followed by Manchester (14) and Birmingham (5).
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 226 professional contacts with verified work emails tracked across these 155 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 27, 2026.
Ready to reach these companies? Verified emails and direct dials for all 155 application security staffing companies based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Application security staffing companies by geography
- Application security staffing companies based in Austin, United States
- Application security staffing companies based in New York, United States
- Application security staffing companies based in Australia
- Application security staffing companies based in Brazil
- Application security staffing companies based in Canada
- Application security staffing companies based in France
- Application security staffing companies based in Germany
- Application security staffing companies based in India
- Application security staffing companies based in the Netherlands
- Application security staffing companies based in the United States
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
- All company lists
- Lists by location
- Lists A-Z
- New lists
- Application security staffing companies based in Austin, United States
- Application security staffing companies based in New York, United States
- Application security staffing companies based in Australia
- Application security staffing companies based in Brazil
- Application security staffing companies based in Canada
- Application security staffing companies based in France
Company intelligence · public preview
Top 25 application security staffing companies 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 155 matching company records for application security staffing companies based in the United Kingdom, with 1,162 tracked contacts and 226 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 27, 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 application security staffing companies 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 |  Tangent Internationaltanint.comHQ: Billericay, United KingdomReported employees: 201-500 | Billericay, United Kingdom | 201-500 | Exact match | 244 contacts → |
“Tangent International Integrated Talent and Delivery across Technology and Communications.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Onlygeniusesonlygeniuses.co.ukHQ: Pinner, United KingdomReported employees: 51-200 | Pinner, United Kingdom | 51-200 | Exact match | 82 contacts → |
“OnlyGeniuses, Is a 12 year old UK based IT company which works only with the top 1% of IT Talent to add immense value to our clients.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  Riversaferiversafe.co.ukHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 57 contacts → |
“We deliver services in Cybersecurity, Application Security and DevOps and are trusted by some of the world’s leading brands to maximise the value of their security investments and…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Damia Groupdamiagroup.comHQ: Guildford, United KingdomReported employees: 11-50 | Guildford, United Kingdom | 11-50 | Exact match | 49 contacts → |
“Damia Group is a trusted talent solutions partner with over 30 years of experience supporting security-cleared environments, including defence, government, space, and aerospace.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | DCL Searchdclsearch.com HQ: Beckenham, United KingdomReported employees: 11-50 | Beckenham, United Kingdom | 11-50 | Exact match | 26 contacts → |
“DCL Search reduce clients risk by identifying attracting the very best Cyber / Information Security Talent in the industry.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Intasointaso.co HQ: Bath, United KingdomReported employees: 11-50 | Bath, United Kingdom | 11-50 | Exact match | 23 contacts → |
“At Intaso we are firm believers that not every business has the same Cyber/ Information Security talent shortages and demands a bespoke offering.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Icebergthisisiceberg.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 20 contacts → |
“We connect top cybersecurity and eDiscovery talent at Iceberg Cyber Security with the most innovative companies worldwide.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Halo I.Shalo-is.co.ukHQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 19 contacts → |
“Halo I.S is not just another cybersecurity organization based in the UK; we're a testament to evolution and client-centric innovation.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Sinevissinevis.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 17 contacts → |
“We are a leading cybersecurity services organization with more than a decade of proven expertise in consulting, solution implementation and managed services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  Infosec People LTDinfosecpeople.co.ukHQ: Cheltenham, United KingdomReported employees: 11-50 | Cheltenham, United Kingdom | 11-50 | Exact match | 16 contacts → |
“InfoSec People is a specialist Cyber Security and Information Security recruitment business.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Mentmorementmore.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 13 contacts → |
“At Mentmore we understand that hiring exceptional people is important for our clients but that it is only one part of their job.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Waterhouse RSwaterhouse-rs.comHQ: Hemel Hempstead, United KingdomReported employees: 11-50 | Hemel Hempstead, United Kingdom | 11-50 | Exact match | 13 contacts → |
“We are specialist staffing consultancy, working with many of the largest and most dynamic clients across the UK, Europe & US.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Marcus Donald Peoplemarcusdonald.com HQ: Blackfriars, United KingdomReported employees: 11-50 | Blackfriars, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Since 2005, Marcus Donald People have been consistently delivering some of the most technically sought-after Cyber Security, Information Security, IP & Enterprise Networking…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Disclosure Cybersecuritydisclosurecybersecurity.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 11 contacts → |
“Disclosure Cybersecurity Ltd is a specialist cyber security company, formed by professionals with extensive experience and wide exposure in the cyber security market.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  Truenorthtruenorthgroup.ioHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 11 contacts → |
“We are on a mission to make people happier at work.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Bn1 Security LTDbn1security.co.uk HQ: Brighton, United KingdomReported employees: 51-200 | Brighton, United Kingdom | 51-200 | Exact match | 11 contacts → |
“At BN1 Security we concentrate on selecting and building lasting relationships with the right clients and not on too rapid expansion to the detriment of delivering a high quality…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Cyber Security Jobsitecybersecurityjobsite.com HQ: Kent, United KingdomReported employees: 1-10 | Kent, United Kingdom | 1-10 | Exact match | 10 contacts → |
“Cyber Security Jobsite is Job Board dedicated to assisting clients and agencies recruiting candidates within the Cyber Security marketplace.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Cyberbase Consultingcyberbase-consulting.comHQ: Weybridge, United KingdomReported employees: 11-50 | Weybridge, United Kingdom | 11-50 | Exact match | 9 contacts → |
“Flexible Talent Solutions: We provide highly skilled cybersecurity professionals to meet your specific needs, whether for long-term strategic projects or short-term, critical…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  F5 Consultantsf5consultants.co.ukHQ: Bristol, United KingdomReported employees: 1-10 | Bristol, United Kingdom | 1-10 | Exact match | 6 contacts → |
“We help tech teams hire well.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Devnackdevnack.comHQ: Edinburgh, United KingdomReported employees: 11-50 | Edinburgh, United Kingdom | 11-50 | Exact match | 6 contacts → |
“Welcome to DevNack - Your trusted partner for bespoke software solutions.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Sectech Solutionssectechsolutions.co.ukHQ: Manchester, United KingdomReported employees: 11-50 | Manchester, United Kingdom | 11-50 | Exact match | 6 contacts → |
“At Sectech Solutions, we don’t just fill roles, we provide trusted, quality-driven people solutions to strengthen your organization’s cybersecurity capabilities.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Focus On Securityfocus-on-security.org HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“Specialist in the recruitment of Cyber Security professionals globally.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Secure Debugsecuredebug.comHQ: Cranfield, United KingdomReported employees: 11-50 | Cranfield, United Kingdom | 11-50 | Exact match | 6 contacts → |
“Secure Debug: Your Full-Spectrum Cybersecurity Guardian!” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  NDK Cyberndkcyber.comHQ: Ashford, United KingdomReported employees: 1-10 | Ashford, United Kingdom | 1-10 | Exact match | 6 contacts → |
“An industry with a skills gap that’s increasing year on year needs a talent specialist at the forefront to create real opportunity.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Cipher Cyberciphercyber.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Cipher Cyber is a boutique cyber security recruitment service that is tailored to your individual requirements.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 155 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Application security staffing companies: dataset insights
September 27, 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
154 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.
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 155 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: September 27, 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 ↗
Questions about this company list
What does Exact match mean for application security staffing companies?
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 application security staffing companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 155 matching company records, 1,162 tracked contacts and 226 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 27, 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
Application security staffing companies by geography
- Application security staffing companies based in Austin, United States
- Application security staffing companies based in New York, United States
- Application security staffing companies based in Australia
- Application security staffing companies based in Brazil
- Application security staffing companies based in Canada
- Application security staffing companies based in France
- Application security staffing companies based in Germany
- Application security staffing companies based in India
- Application security staffing companies based in the Netherlands
- Application security staffing companies based in the United States
Cite this list
RevenueBase Data Team. Top 25 application security staffing companies based in the United Kingdom. Snapshot: September 27, 2026. https://revenuebase.ai/companies/application-security-staffing-companies/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
- Application security staffing companies based in Austin, United States
- Application security staffing companies based in New York, United States
- Application security staffing companies based in Australia
- Application security staffing companies based in Brazil
- Application security staffing companies based in Canada
- Application security staffing companies based in France
Company intelligence · public preview
Top 25 application security staffing companies based in the United Kingdom
RevenueBase records 155 matching company records for application security staffing companies based in the United Kingdom, with 1,162 tracked contacts and 226 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 27, 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 application security staffing companies 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 | Tangent Internationaltanint.com HQ: Billericay, United KingdomReported employees: 201-500 | Billericay, United Kingdom | 201-500 | Exact match | 244 contacts → |
“Tangent International Integrated Talent and Delivery across Technology and Communications.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Onlygeniusesonlygeniuses.co.uk HQ: Pinner, United KingdomReported employees: 51-200 | Pinner, United Kingdom | 51-200 | Exact match | 82 contacts → |
“OnlyGeniuses, Is a 12 year old UK based IT company which works only with the top 1% of IT Talent to add immense value to our clients.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | Riversaferiversafe.co.uk HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 57 contacts → |
“We deliver services in Cybersecurity, Application Security and DevOps and are trusted by some of the world’s leading brands to maximise the value of their security investments and…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Damia Groupdamiagroup.com HQ: Guildford, United KingdomReported employees: 11-50 | Guildford, United Kingdom | 11-50 | Exact match | 49 contacts → |
“Damia Group is a trusted talent solutions partner with over 30 years of experience supporting security-cleared environments, including defence, government, space, and aerospace.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | DCL Searchdclsearch.com HQ: Beckenham, United KingdomReported employees: 11-50 | Beckenham, United Kingdom | 11-50 | Exact match | 26 contacts → |
“DCL Search reduce clients risk by identifying attracting the very best Cyber / Information Security Talent in the industry.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Intasointaso.co HQ: Bath, United KingdomReported employees: 11-50 | Bath, United Kingdom | 11-50 | Exact match | 23 contacts → |
“At Intaso we are firm believers that not every business has the same Cyber/ Information Security talent shortages and demands a bespoke offering.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Icebergthisisiceberg.com HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 20 contacts → |
“We connect top cybersecurity and eDiscovery talent at Iceberg Cyber Security with the most innovative companies worldwide.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Halo I.Shalo-is.co.uk HQ: Leeds, United KingdomReported employees: 11-50 | Leeds, United Kingdom | 11-50 | Exact match | 19 contacts → |
“Halo I.S is not just another cybersecurity organization based in the UK; we're a testament to evolution and client-centric innovation.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Sinevissinevis.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 17 contacts → |
“We are a leading cybersecurity services organization with more than a decade of proven expertise in consulting, solution implementation and managed services.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | Infosec People LTDinfosecpeople.co.uk HQ: Cheltenham, United KingdomReported employees: 11-50 | Cheltenham, United Kingdom | 11-50 | Exact match | 16 contacts → |
“InfoSec People is a specialist Cyber Security and Information Security recruitment business.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Mentmorementmore.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 13 contacts → |
“At Mentmore we understand that hiring exceptional people is important for our clients but that it is only one part of their job.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Waterhouse RSwaterhouse-rs.com HQ: Hemel Hempstead, United KingdomReported employees: 11-50 | Hemel Hempstead, United Kingdom | 11-50 | Exact match | 13 contacts → |
“We are specialist staffing consultancy, working with many of the largest and most dynamic clients across the UK, Europe & US.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Marcus Donald Peoplemarcusdonald.com HQ: Blackfriars, United KingdomReported employees: 11-50 | Blackfriars, United Kingdom | 11-50 | Exact match | 12 contacts → |
“Since 2005, Marcus Donald People have been consistently delivering some of the most technically sought-after Cyber Security, Information Security, IP & Enterprise Networking…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Disclosure Cybersecuritydisclosurecybersecurity.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 11 contacts → |
“Disclosure Cybersecurity Ltd is a specialist cyber security company, formed by professionals with extensive experience and wide exposure in the cyber security market.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | Truenorthtruenorthgroup.io HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 11 contacts → |
“We are on a mission to make people happier at work.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Bn1 Security LTDbn1security.co.uk HQ: Brighton, United KingdomReported employees: 51-200 | Brighton, United Kingdom | 51-200 | Exact match | 11 contacts → |
“At BN1 Security we concentrate on selecting and building lasting relationships with the right clients and not on too rapid expansion to the detriment of delivering a high quality…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Cyber Security Jobsitecybersecurityjobsite.com HQ: Kent, United KingdomReported employees: 1-10 | Kent, United Kingdom | 1-10 | Exact match | 10 contacts → |
“Cyber Security Jobsite is Job Board dedicated to assisting clients and agencies recruiting candidates within the Cyber Security marketplace.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Cyberbase Consultingcyberbase-consulting.com HQ: Weybridge, United KingdomReported employees: 11-50 | Weybridge, United Kingdom | 11-50 | Exact match | 9 contacts → |
“Flexible Talent Solutions: We provide highly skilled cybersecurity professionals to meet your specific needs, whether for long-term strategic projects or short-term, critical…” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | F5 Consultantsf5consultants.co.uk HQ: Bristol, United KingdomReported employees: 1-10 | Bristol, United Kingdom | 1-10 | Exact match | 6 contacts → |
“We help tech teams hire well.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Devnackdevnack.com HQ: Edinburgh, United KingdomReported employees: 11-50 | Edinburgh, United Kingdom | 11-50 | Exact match | 6 contacts → |
“Welcome to DevNack - Your trusted partner for bespoke software solutions.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Sectech Solutionssectechsolutions.co.uk HQ: Manchester, United KingdomReported employees: 11-50 | Manchester, United Kingdom | 11-50 | Exact match | 6 contacts → |
“At Sectech Solutions, we don’t just fill roles, we provide trusted, quality-driven people solutions to strengthen your organization’s cybersecurity capabilities.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Focus On Securityfocus-on-security.org HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 6 contacts → |
“Specialist in the recruitment of Cyber Security professionals globally.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Secure Debugsecuredebug.com HQ: Cranfield, United KingdomReported employees: 11-50 | Cranfield, United Kingdom | 11-50 | Exact match | 6 contacts → |
“Secure Debug: Your Full-Spectrum Cybersecurity Guardian!” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | NDK Cyberndkcyber.com HQ: Ashford, United KingdomReported employees: 1-10 | Ashford, United Kingdom | 1-10 | Exact match | 6 contacts → |
“An industry with a skills gap that’s increasing year on year needs a talent specialist at the forefront to create real opportunity.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Cipher Cyberciphercyber.co.uk HQ: London, United KingdomReported employees: 1-10 | London, United Kingdom | 1-10 | Exact match | 5 contacts → |
“Cipher Cyber is a boutique cyber security recruitment service that is tailored to your individual requirements.” Recorded description excerpt · September 27, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 155 company matches
Build a targeted audience, find relevant contacts and export available records to your workflow.
Free signup · 500 credits · limited free results
Application security staffing companies: dataset insights
September 27, 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
154 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.
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 155 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: September 27, 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 ↗
Questions about this company list
What does Exact match mean for application security staffing companies?
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 application security staffing companies did RevenueBase find based in the United Kingdom?
The saved snapshot records 155 matching company records, 1,162 tracked contacts and 226 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 27, 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
Application security staffing companies by geography
- Application security staffing companies based in Austin, United States
- Application security staffing companies based in New York, United States
- Application security staffing companies based in Australia
- Application security staffing companies based in Brazil
- Application security staffing companies based in Canada
- Application security staffing companies based in France
- Application security staffing companies based in Germany
- Application security staffing companies based in India
- Application security staffing companies based in the Netherlands
- Application security staffing companies based in the United States
Cite this list
RevenueBase Data Team. Top 25 application security staffing companies based in the United Kingdom. Snapshot: September 27, 2026. https://revenuebase.ai/companies/application-security-staffing-companies/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
- Application security staffing companies based in Austin, United States
- Application security staffing companies based in New York, United States
- Application security staffing companies based in Australia
- Application security staffing companies based in Brazil
- Application security staffing companies based in Canada
- Application security staffing companies based in France