Company lists · Data refreshed November 2026
Top 25 Port security operators based in the United Kingdom
RevenueBase identified 142 company matches for port security operators associated with the United Kingdom as of November 2026 and tracks 1,779 professional contacts across them, including 182 with verified work emails. London is the largest hub.
This list covers company matches for port security operators associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed November 5, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest port security operators based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 275 contacts → | ||||
Exact match “We have moved as Profile Security Services is now Proudly OCS.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 2 | 171 contacts → | ||||
Exact match “We are GUK.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 3 | 99 contacts → | ||||
Exact match “For a better service and competitive price try K4 Security Services At K4 we offer the following: 1.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 4 | 69 contacts → | ||||
Exact match “Northern Security Ltd is a leading guarding, alarm response and electronic security business operating throughout the North of England and South West Scotland.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 5 | 67 contacts → | ||||
Exact match “Black Diamond Security - Safeguarding Your World.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 6 | 63 contacts → | ||||
Exact match “City Security Services (CSS) have more than 25 years’ experience within the corporate security, public sector, education and social housing markets delivering manned guarding…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 7 | 54 contacts → | ||||
Exact match “Secur-it is a leading provider of security services and risk management.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 8 | 54 contacts → | ||||
Exact match “Shield Security Services Limited was incorporated in 1986.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 9 | 50 contacts → | ||||
Exact match “AK9 Security and FM Solutions offers comprehensive security solutions for businesses, governmental organizations, and residential areas.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 10 | 42 contacts → | ||||
Exact match “All in Black are an accredited security solutions provider with over 20 years’ experience at the highest level across the UK.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 11 | 28 contacts → | ||||
Exact match “Specialist Security Co Ltd is an independently owned business established over two decades ago.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 12 | 28 contacts → | ||||
Exact match “Close Protection Security is an industry-leading security company, established in 2017 and based in the North East of England, created by Glenn Bartlett.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 13 | 24 contacts → | ||||
Exact match “Regal Maritime Solutions has been operating since 2011, providing bespoke security solutions to both merchant and private vessels against acts of piracy in high risk waters…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 14 | 20 contacts → | ||||
Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 15 | 20 contacts → | ||||
Exact match “Maritime & Underwater Security Consultants (MUSC) specialise in counter piracy and ship security, unexploded ordnance disposal, port and supply chain security, high-risk shore-end…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 16 | 17 contacts → | ||||
Exact match “The definition of Amity is peaceful and friendly, as such we aim to live up to our name.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 17 | 13 contacts → | ||||
Exact match “Clear Watch Security is an SIA Approved Contractor providing professional, technology-assisted security solutions to businesses of all sizes.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 18 | 13 contacts → | ||||
Exact match “Isca Maritime Security Services Ltd provides crewing and security services to cruise lines, ferry companies and yachts.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 19 | 9 contacts → | ||||
Exact match “G&A Security are a leading Security Service provider for the North East & throughout the UK G&A Security offer B2B security solutions not limited to: corporate concierge; CCTV…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 20 | 9 contacts → | ||||
Exact match “Zeal GMS Ltd is a UK maritime security company, providing peace of mind and security to both commercial and private clients trying to come to terms with the ever increasing threat…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 21 | 8 contacts → | ||||
Exact match “SAS Managed Services Limited an award-winning company in 2022 & 2023 has the expertise, knowledge and resources to offer a wide range of security services, delivering bespoke…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 22 | 5 contacts → | ||||
Exact match “XB44 Ltd specialises in Maritime and Land-Based Security Consultancy, Training, and Investigations, delivering bespoke solutions to address complex security challenges.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 23 | 5 contacts → | ||||
Exact match “With over 10 years in the security industry, we have built a reputation for reliability, professionalism, and unparalleled customer service.” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 24 | 4 contacts → | ||||
Exact match “Brit Alliance: Raising Standards in International Security and Risk Management We are dedicated to making a positive impact in the world of security and risk management – both on…” Recorded in the RevenueBase company graph · Nov 5, 2026 · View company records in RevenueBase | |||||
| 25 | 3 contacts → | ||||
Exact match “Dragon Security Limited is a fast growing security firm based in North Wales with a UK coverage span.” Recorded in the RevenueBase company graph · Nov 5, 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 “port security operators”. 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 142 port security operators based in the United Kingdom
See the full list, filter by size, metro and specialty, and access 182 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Port security operators based in the United Kingdom at a glance
As of Nov 5, 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 142 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 “port security operators” 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 182 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on November 5, 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.
Port security operators 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 “port security operators”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many port security operators are there based in the United Kingdom?
RevenueBase identified 142 company matches for port security operators associated with the United Kingdom as of November 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Profile Security Services tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which city has the most port security operators?
London leads with 42 company records, followed by Birmingham (4) and Cardiff (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 182 professional contacts with verified work emails tracked across these 142 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on November 5, 2026.
Ready to reach these companies? Verified emails and direct dials for all 142 port security operators based in the United Kingdom. Start with a free account, no credit card.
Download this list →Related lists
Port security operators by geography
- Port security operators based in London, United Kingdom
- Port security operators based in Argentina
- Port security operators based in Australia
- Port security operators based in Brazil
- Port security operators based in Canada
- Port security operators based in France
- Port security operators based in Germany
- Port security operators based in India
- Port security operators based in Italy
- Port security operators based in the Netherlands
- Port security operators based in Spain
- Port security operators based in Switzerland
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
- Port security operators based in London, United Kingdom
- Port security operators based in Argentina
- Port security operators based in Australia
- Port security operators based in Brazil
- Port security operators based in Canada
- Port security operators based in France
Company intelligence · public preview
Top 25 port security operators 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 142 matching company records for port security operators based in the United Kingdom, with 1,779 tracked contacts and 182 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: November 5, 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 port security operators 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 |  Profile Security Servicesocs.comHQ: Barrow-upon-humber, United KingdomReported employees: 1,001-5,000 | Barrow-upon-humber, United Kingdom | 1,001-5,000 | Exact match | 275 contacts → |
“We have moved as Profile Security Services is now Proudly OCS.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Guarding UKguk.co.ukHQ: Enfield, United KingdomReported employees: 501-1,000 | Enfield, United Kingdom | 501-1,000 | Exact match | 171 contacts → |
“We are GUK.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  K4 Security - K4 Groupk4security.co.ukHQ: Hounslow, United KingdomReported employees: 201-500 | Hounslow, United Kingdom | 201-500 | Exact match | 99 contacts → |
“For a better service and competitive price try K4 Security Services At K4 we offer the following: 1.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Northern Security LTDnorthernsecurityltd.co.ukHQ: Carlisle, United KingdomReported employees: 201-500 | Carlisle, United Kingdom | 201-500 | Exact match | 69 contacts → |
“Northern Security Ltd is a leading guarding, alarm response and electronic security business operating throughout the North of England and South West Scotland.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  Black Diamond Securityblackdiamondsecurity.co.ukHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 67 contacts → |
“Black Diamond Security - Safeguarding Your World.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  City Security Services Part Of City Group Securitycitysecurity.org.ukHQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 63 contacts → |
“City Security Services (CSS) have more than 25 years’ experience within the corporate security, public sector, education and social housing markets delivering manned guarding…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 |  Secur-It Integrated Services LTDsecur-it.co.ukHQ: South Normanton, United KingdomReported employees: 201-500 | South Normanton, United Kingdom | 201-500 | Exact match | 54 contacts → |
“Secur-it is a leading provider of security services and risk management.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Shield Security Services LTDshieldsecurity.co.ukHQ: Aldershot, United KingdomReported employees: 51-200 | Aldershot, United Kingdom | 51-200 | Exact match | 54 contacts → |
“Shield Security Services Limited was incorporated in 1986.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  Ak9 Security And FM Solutions LTDak9security.comHQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 50 contacts → |
“AK9 Security and FM Solutions offers comprehensive security solutions for businesses, governmental organizations, and residential areas.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  AIB Groupaib-group.co.ukHQ: Bletchley, United KingdomReported employees: 201-500 | Bletchley, United Kingdom | 201-500 | Exact match | 42 contacts → |
“All in Black are an accredited security solutions provider with over 20 years’ experience at the highest level across the UK.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Specialist Security CO LTDspecialistsecurityco.comHQ: Cardiff, United KingdomReported employees: 201-500 | Cardiff, United Kingdom | 201-500 | Exact match | 28 contacts → |
“Specialist Security Co Ltd is an independently owned business established over two decades ago.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Close Protection Security NEcloseprotectionsecurityltd.comHQ: Darlington, United KingdomReported employees: 51-200 | Darlington, United Kingdom | 51-200 | Exact match | 28 contacts → |
“Close Protection Security is an industry-leading security company, established in 2017 and based in the North East of England, created by Glenn Bartlett.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Regal Maritime Solutionsregalmaritimesolutions.comHQ: Borehamwood, United KingdomReported employees: 11-50 | Borehamwood, United Kingdom | 11-50 | Exact match | 24 contacts → |
“Regal Maritime Solutions has been operating since 2011, providing bespoke security solutions to both merchant and private vessels against acts of piracy in high risk waters…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  Wilson James Limitedwilsonjames.co.ukHQ: Westcliff On Sea, United KingdomReported employees: 1,001-5,000 | Westcliff On Sea, United Kingdom | 1,001-5,000 | Exact match | 20 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 |  Maritime And Underwater Security Consultantsmandusc.comHQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 20 contacts → |
“Maritime & Underwater Security Consultants (MUSC) specialise in counter piracy and ship security, unexploded ordnance disposal, port and supply chain security, high-risk shore-end…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Amity Group INC Amity Securityamitygrp.comHQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 17 contacts → |
“The definition of Amity is peaceful and friendly, as such we aim to live up to our name.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Clear Watch Securityclearwatchsecurity.co.ukHQ: Oldham, United KingdomReported employees: 11-50 | Oldham, United Kingdom | 11-50 | Exact match | 13 contacts → |
“Clear Watch Security is an SIA Approved Contractor providing professional, technology-assisted security solutions to businesses of all sizes.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  Isca Maritime Security Services LTDisca-mss.comHQ: Portsmouth, United KingdomReported employees: 1-10 | Portsmouth, United Kingdom | 1-10 | Exact match | 13 contacts → |
“Isca Maritime Security Services Ltd provides crewing and security services to cruise lines, ferry companies and yachts.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  G&a Securityga-security.co.ukHQ: Darlington, United KingdomReported employees: 51-200 | Darlington, United Kingdom | 51-200 | Exact match | 9 contacts → |
“G&A Security are a leading Security Service provider for the North East & throughout the UK G&A Security offer B2B security solutions not limited to: corporate concierge; CCTV…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Zeal Global Maritime Solutions LTDzeal-gms.com HQ: Nottinghamshire, United KingdomReported employees: 51-200 | Nottinghamshire, United Kingdom | 51-200 | Exact match | 9 contacts → |
“Zeal GMS Ltd is a UK maritime security company, providing peace of mind and security to both commercial and private clients trying to come to terms with the ever increasing threat…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  SAS Managed Services LTDsas-ms.comHQ: Birmingham, United KingdomReported employees: 51-200 | Birmingham, United Kingdom | 51-200 | Exact match | 8 contacts → |
“SAS Managed Services Limited an award-winning company in 2022 & 2023 has the expertise, knowledge and resources to offer a wide range of security services, delivering bespoke…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  Xb44xb44.ukHQ: Southampton, United KingdomReported employees: 11-50 | Southampton, United Kingdom | 11-50 | Exact match | 5 contacts → |
“XB44 Ltd specialises in Maritime and Land-Based Security Consultancy, Training, and Investigations, delivering bespoke solutions to address complex security challenges.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 5 contacts → |
“With over 10 years in the security industry, we have built a reputation for reliability, professionalism, and unparalleled customer service.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Brit Alliance LTDbritalliance.co.ukHQ: Aylesbury, United KingdomReported employees: 1-10 | Aylesbury, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Brit Alliance: Raising Standards in International Security and Risk Management We are dedicated to making a positive impact in the world of security and risk management – both on…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Dragon Security Limiteddragon-security.co.ukHQ: Holyhead, United KingdomReported employees: 11-50 | Holyhead, United Kingdom | 11-50 | Exact match | 3 contacts → |
“Dragon Security Limited is a fast growing security firm based in North Wales with a UK coverage span.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 142 company matches
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Port security operators: dataset insights
November 5, 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
136 records in the displayed employee bands.
6 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 142 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 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 ↗
Port security operators by metro
Questions about this company list
What does Exact match mean for port security operators?
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 port security operators did RevenueBase find based in the United Kingdom?
The saved snapshot records 142 matching company records, 1,779 tracked contacts and 182 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: November 5, 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
Port security operators by geography
- Port security operators based in London, United Kingdom
- Port security operators based in Argentina
- Port security operators based in Australia
- Port security operators based in Brazil
- Port security operators based in Canada
- Port security operators based in France
- Port security operators based in Germany
- Port security operators based in India
- Port security operators based in Italy
- Port security operators based in the Netherlands
- Port security operators based in Spain
- Port security operators based in Switzerland
Cite this list
RevenueBase Data Team. Top 25 port security operators based in the United Kingdom. Snapshot: November 5, 2026. https://revenuebase.ai/companies/port-security-operators/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
- Port security operators based in London, United Kingdom
- Port security operators based in Argentina
- Port security operators based in Australia
- Port security operators based in Brazil
- Port security operators based in Canada
- Port security operators based in France
Company intelligence · public preview
Top 25 port security operators based in the United Kingdom
RevenueBase records 142 matching company records for port security operators based in the United Kingdom, with 1,779 tracked contacts and 182 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: November 5, 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 port security operators 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 | Profile Security Servicesocs.com HQ: Barrow-upon-humber, United KingdomReported employees: 1,001-5,000 | Barrow-upon-humber, United Kingdom | 1,001-5,000 | Exact match | 275 contacts → |
“We have moved as Profile Security Services is now Proudly OCS.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Guarding UKguk.co.uk HQ: Enfield, United KingdomReported employees: 501-1,000 | Enfield, United Kingdom | 501-1,000 | Exact match | 171 contacts → |
“We are GUK.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | K4 Security - K4 Groupk4security.co.uk HQ: Hounslow, United KingdomReported employees: 201-500 | Hounslow, United Kingdom | 201-500 | Exact match | 99 contacts → |
“For a better service and competitive price try K4 Security Services At K4 we offer the following: 1.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Northern Security LTDnorthernsecurityltd.co.uk HQ: Carlisle, United KingdomReported employees: 201-500 | Carlisle, United Kingdom | 201-500 | Exact match | 69 contacts → |
“Northern Security Ltd is a leading guarding, alarm response and electronic security business operating throughout the North of England and South West Scotland.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | Black Diamond Securityblackdiamondsecurity.co.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 67 contacts → |
“Black Diamond Security - Safeguarding Your World.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | City Security Services Part Of City Group Securitycitysecurity.org.uk HQ: London, United KingdomReported employees: 201-500 | London, United Kingdom | 201-500 | Exact match | 63 contacts → |
“City Security Services (CSS) have more than 25 years’ experience within the corporate security, public sector, education and social housing markets delivering manned guarding…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | Secur-It Integrated Services LTDsecur-it.co.uk HQ: South Normanton, United KingdomReported employees: 201-500 | South Normanton, United Kingdom | 201-500 | Exact match | 54 contacts → |
“Secur-it is a leading provider of security services and risk management.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Shield Security Services LTDshieldsecurity.co.uk HQ: Aldershot, United KingdomReported employees: 51-200 | Aldershot, United Kingdom | 51-200 | Exact match | 54 contacts → |
“Shield Security Services Limited was incorporated in 1986.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | Ak9 Security And FM Solutions LTDak9security.com HQ: London, United KingdomReported employees: 501-1,000 | London, United Kingdom | 501-1,000 | Exact match | 50 contacts → |
“AK9 Security and FM Solutions offers comprehensive security solutions for businesses, governmental organizations, and residential areas.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | AIB Groupaib-group.co.uk HQ: Bletchley, United KingdomReported employees: 201-500 | Bletchley, United Kingdom | 201-500 | Exact match | 42 contacts → |
“All in Black are an accredited security solutions provider with over 20 years’ experience at the highest level across the UK.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Specialist Security CO LTDspecialistsecurityco.com HQ: Cardiff, United KingdomReported employees: 201-500 | Cardiff, United Kingdom | 201-500 | Exact match | 28 contacts → |
“Specialist Security Co Ltd is an independently owned business established over two decades ago.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Close Protection Security NEcloseprotectionsecurityltd.com HQ: Darlington, United KingdomReported employees: 51-200 | Darlington, United Kingdom | 51-200 | Exact match | 28 contacts → |
“Close Protection Security is an industry-leading security company, established in 2017 and based in the North East of England, created by Glenn Bartlett.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Regal Maritime Solutionsregalmaritimesolutions.com HQ: Borehamwood, United KingdomReported employees: 11-50 | Borehamwood, United Kingdom | 11-50 | Exact match | 24 contacts → |
“Regal Maritime Solutions has been operating since 2011, providing bespoke security solutions to both merchant and private vessels against acts of piracy in high risk waters…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | Wilson James Limitedwilsonjames.co.uk HQ: Westcliff On Sea, United KingdomReported employees: 1,001-5,000 | Westcliff On Sea, United Kingdom | 1,001-5,000 | Exact match | 20 contacts → |
No recorded description excerpt is available for this public record. | |||||
| 15 | Maritime And Underwater Security Consultantsmandusc.com HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 20 contacts → |
“Maritime & Underwater Security Consultants (MUSC) specialise in counter piracy and ship security, unexploded ordnance disposal, port and supply chain security, high-risk shore-end…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Amity Group INC Amity Securityamitygrp.com HQ: London, United KingdomReported employees: 51-200 | London, United Kingdom | 51-200 | Exact match | 17 contacts → |
“The definition of Amity is peaceful and friendly, as such we aim to live up to our name.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Clear Watch Securityclearwatchsecurity.co.uk HQ: Oldham, United KingdomReported employees: 11-50 | Oldham, United Kingdom | 11-50 | Exact match | 13 contacts → |
“Clear Watch Security is an SIA Approved Contractor providing professional, technology-assisted security solutions to businesses of all sizes.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | Isca Maritime Security Services LTDisca-mss.com HQ: Portsmouth, United KingdomReported employees: 1-10 | Portsmouth, United Kingdom | 1-10 | Exact match | 13 contacts → |
“Isca Maritime Security Services Ltd provides crewing and security services to cruise lines, ferry companies and yachts.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | G&a Securityga-security.co.uk HQ: Darlington, United KingdomReported employees: 51-200 | Darlington, United Kingdom | 51-200 | Exact match | 9 contacts → |
“G&A Security are a leading Security Service provider for the North East & throughout the UK G&A Security offer B2B security solutions not limited to: corporate concierge; CCTV…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Zeal Global Maritime Solutions LTDzeal-gms.com HQ: Nottinghamshire, United KingdomReported employees: 51-200 | Nottinghamshire, United Kingdom | 51-200 | Exact match | 9 contacts → |
“Zeal GMS Ltd is a UK maritime security company, providing peace of mind and security to both commercial and private clients trying to come to terms with the ever increasing threat…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | SAS Managed Services LTDsas-ms.com HQ: Birmingham, United KingdomReported employees: 51-200 | Birmingham, United Kingdom | 51-200 | Exact match | 8 contacts → |
“SAS Managed Services Limited an award-winning company in 2022 & 2023 has the expertise, knowledge and resources to offer a wide range of security services, delivering bespoke…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | Xb44xb44.uk HQ: Southampton, United KingdomReported employees: 11-50 | Southampton, United Kingdom | 11-50 | Exact match | 5 contacts → |
“XB44 Ltd specialises in Maritime and Land-Based Security Consultancy, Training, and Investigations, delivering bespoke solutions to address complex security challenges.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | HQ: London, United KingdomReported employees: 11-50 | London, United Kingdom | 11-50 | Exact match | 5 contacts → |
“With over 10 years in the security industry, we have built a reputation for reliability, professionalism, and unparalleled customer service.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Brit Alliance LTDbritalliance.co.uk HQ: Aylesbury, United KingdomReported employees: 1-10 | Aylesbury, United Kingdom | 1-10 | Exact match | 4 contacts → |
“Brit Alliance: Raising Standards in International Security and Risk Management We are dedicated to making a positive impact in the world of security and risk management – both on…” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Dragon Security Limiteddragon-security.co.uk HQ: Holyhead, United KingdomReported employees: 11-50 | Holyhead, United Kingdom | 11-50 | Exact match | 3 contacts → |
“Dragon Security Limited is a fast growing security firm based in North Wales with a UK coverage span.” Recorded description excerpt · November 5, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 142 company matches
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Port security operators: dataset insights
November 5, 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
136 records in the displayed employee bands.
6 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 142 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: November 5, 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 ↗
Port security operators by metro
Questions about this company list
What does Exact match mean for port security operators?
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 port security operators did RevenueBase find based in the United Kingdom?
The saved snapshot records 142 matching company records, 1,779 tracked contacts and 182 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: November 5, 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
Port security operators by geography
- Port security operators based in London, United Kingdom
- Port security operators based in Argentina
- Port security operators based in Australia
- Port security operators based in Brazil
- Port security operators based in Canada
- Port security operators based in France
- Port security operators based in Germany
- Port security operators based in India
- Port security operators based in Italy
- Port security operators based in the Netherlands
- Port security operators based in Spain
- Port security operators based in Switzerland
Cite this list
RevenueBase Data Team. Top 25 port security operators based in the United Kingdom. Snapshot: November 5, 2026. https://revenuebase.ai/companies/port-security-operators/united-kingdom.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
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