Company lists · Data refreshed September 2026
Top 25 Port and maritime security companies worldwide
RevenueBase identified 764 port and maritime security companies worldwide as of September 2026 and tracks 18,733 professional contacts across them, including 2,657 with verified work emails. The United Kingdom is the largest market and London the largest hub.
This list covers port and maritime security companies worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 29, 2026. Country and city lists for port and maritime security companies follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 and maritime security companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,324 contacts → | ||||
Partial evidence “Global trade has always depended on the port and since 1847 Inchcape Shipping Services has provided the local knowledge and means to deliver port calls that enable business to…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 2 | 1,398 contacts → | ||||
Partial evidence “World Security being a Semi Govt Organization provides specialist turnkey security solutions to the local market and beyond, as well as the Dubai World Group.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 3 | 1,313 contacts → | ||||
Partial evidence “First established in Shanghai in 1903, Wallem Group has a 120-year maritime heritage with a presence in 19 countries globally.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 4 | 673 contacts → | ||||
Indirect evidence “Tepe Savunma ve Güvenlik, 1993’te Bilkent Holding bünyesinde, Holding ve bağlı şirketlerin özel güvenlik ihtiyaçlarını karşılamak amacıyla faaliyete geçmiş; 1997’de anonim şirket…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 5 | 628 contacts → | ||||
Partial evidence “Gözen Security Services Inc, is a leading provider of Security Solutions to a wide range of best known national and international organisations operating at different industries…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 6 | 514 contacts → | ||||
Partial evidence “PNGPCL is responsible for the control and management of all sea ports that come under its jurisdiction, owned by the State and controlled by the then PNG Harbours Limited The…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 7 | 484 contacts → | ||||
Partial evidence “American Guard Services is an established, reliable and accredited security protection firm.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 8 | 435 contacts → | ||||
Partial evidence “Always On"- We are at the heart of a diverse and interdependent global maritime eco-system.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 9 | 282 contacts → | ||||
Partial evidence “Port Authority of New South Wales provides safe, reliable and efficient port and marine services for commercial shipping in Sydney Harbour, Port Botany, Port Kembla, Newcastle…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 10 | 196 contacts → | ||||
Partial evidence “Ocean Marine Solutions Ltd is a strategically positioned organization operating the marine industry to provide solutions to high-risks security concerns in Nigerian waters.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 11 | 171 contacts → | ||||
Partial evidence “Top Guard Security provides uniformed unarmed and armed private security officer services and believes in a balanced approach to private security services management.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 12 | 170 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 13 | 139 contacts → | ||||
Indirect evidence “Part of the Clarksons Group, the world’s leading provider of integrated shipping services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 14 | 128 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 15 | 103 contacts → | ||||
Strong evidence “History: Diaplous Group started out as a private maritime security company (PMSC) in 2010, providing services to the owners and operators of vessels in high-risk areas such as the…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 16 | 103 contacts → | ||||
Strong evidence “TSS is a private security firm specializing in customer service, partnership focused cruise terminal, cargo facility and port authority security services, as well as crew…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 17 | 101 contacts → | ||||
Indirect evidence “Seguridad privada para el sector Comercial, Empresarial, Industrial, Bancario, Residencial, en Aeropuertos, Aeroportuaria, Agentes Consultoría en Seguridad.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 18 | 83 contacts → | ||||
Strong evidence “Kongsberg Norcontrol maritime surveillance solutions improve safety, efficiency and security of maritime transportation and its infrastructure by providing optimal situational…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 19 | 80 contacts → | ||||
Partial evidence “DPS Certificate of Private Security License Number B00257 Whether you own or operate a business, securing and protecting your assets against theft and vandalism is a vital part of…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 20 | 78 contacts → | ||||
Indirect evidence “Criada a 1 de Setembro de 1982, a ENAPOR é uma sociedade anónima de capitais públicos, detidos direta e exclusivamente pelo Estado de Cabo Verde.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 21 | 72 contacts → | ||||
Partial evidence “Execushield Inc, headquartered in California, provides professional security services to both American and international clients.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 22 | 66 contacts → | ||||
Indirect evidence “La prestación de los servicios portuarios generales y la autorización y control de los servicios portuarios para lograr que se desarrollen en condiciones óptimas de eficacia…” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 23 | 65 contacts → | ||||
Strong evidence “Maritime Security Services.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 24 | 61 contacts → | ||||
Strong evidence “Providing security solutions to Vancouver Ports, and Colleges.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
| 25 | 52 contacts → | ||||
Indirect evidence “TIAN SAN SHIPPING is one of the largest harbour craft operators in Singapore.” Source: RevenueBase Database · checked Sep 29, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: port and maritime security companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names port and maritime security companies.
- Partial evidence
- Its own public description names part of port and maritime security companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name port and maritime security companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 764 port and maritime security companies worldwide
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Port and maritime security companies worldwide at a glance
As of Sep 29, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among port and maritime security companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for port and maritime security companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “port and maritime security companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names port and maritime security companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among port and maritime security companies, and records with no verified work email.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- 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 listed company carries at least one verified work email, 2,657 across the full list. 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 29, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Port and maritime security companies by location
4 lists · largest firstEvery Port and maritime security companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names port and maritime security companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many port and maritime security companies are there worldwide?
RevenueBase identified 764 port and maritime security companies worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Inchcape Shipping Services, headquartered in London, tops this list with the largest team on record.
Which country has the most port and maritime security companies?
The United Kingdom leads with 62 companies, followed by Brazil (57) and the United States (55). Every port and maritime security companies list by country and city is linked on this page.
Which city has the most port and maritime security companies?
London leads with 15 headquartered companies, followed by Lagos (9) and Port Harcourt (9).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 2,657 verified decision-maker contacts tracked across these 764 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 29, 2026.
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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 Smart Search, 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.