Company lists · Data refreshed September 2026
Top 25 Port and harbor communication systems worldwide
RevenueBase identified 399 port and harbor communication systems worldwide as of September 2026 and tracks 6,861 professional contacts across them, including 1,906 with verified work emails. The United States is the largest market and Singapore the largest hub.
This list covers port and harbor communication systems 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 20, 2026. Country and city lists for port and harbor communication systems 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 harbor communication systems worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 474 contacts → | ||||
Indirect evidence “WHO ARE WE Radio Holland is well-known in the worldwide maritime industry as global NavCom, Connectivity, ICT on Board and Service & Maintenance provider.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 408 contacts → | ||||
Indirect evidence “A maritime enterprise with expertise in a variety of services and a dedication to delivering forward-thinking solutions for the industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 360 contacts → | ||||
Partial evidence “Zenitel is a leading provider of intelligent critical communications solutions with presence across EMEA, America’s, and APAC.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 315 contacts → | ||||
Partial evidence “KDU Group has established itself as one of the leading solutions provider for Electrical, Automation, Navigation and Communication in Marine and Offshore segments since 2005.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 288 contacts → | ||||
Indirect evidence “Formerly Elcome Marine Services Pvt.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 256 contacts → | ||||
Partial evidence “Founded in 1884, Mackay Communications (dba Mackay Marine) continues to evolve with the times.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 144 contacts → | ||||
Partial evidence “Founded in 1998, Station Satcom is a global leader in integrated remote communication solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 128 contacts → | ||||
Indirect evidence “Founded in 1986, Tototheo Global is a leading provider of technology, connectivity, and digital transformation solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 121 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 102 contacts → | ||||
Indirect evidence “Aage Hempel Group is a company specialized in maritime services mainly for the shipping industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 100 contacts → | ||||
Strong evidence “Established in 1976, Jason Marine is a leading provider of integrated solutions of a wide range of marine communication, navigation and automation systems based in Singapore.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 93 contacts → | ||||
Indirect evidence “Há mais de 35 anos, a Jevin fornece soluções em comunicação para operações offshore e onshore.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 82 contacts → | ||||
Partial evidence “Founded in 2002, Marine Technologies manufactures and installs dynamic positioning systems, integrated bridge systems, voice telecommunications systems as well as satellite based…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 72 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 71 contacts → | ||||
Partial evidence “Satcom Global is a leading provider of global satellite services to the maritime, land and aero markets, and a trusted supplier of marine and offshore safety systems and…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 71 contacts → | ||||
Indirect evidence “More than 100 years in the making, Pharos Marine Automatic Power, Inc.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 65 contacts → | ||||
Partial evidence “TNL Greece SA is a leading Marine Electronics company, specializing In Maritime Satellite Communication & Navigation Solutions/Services for the Deep Seas Merchant Marine Market.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 61 contacts → | ||||
Indirect evidence “Com mais de 50 anos de experiência, somos líder no mercado brasileiro de eletrônica naval, nos destacando pela excelência na prestação de serviços em navegação, telecomunicações…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 54 contacts → | ||||
Partial evidence “World-Link Communications is an award-winning provider of maritime satellite communications services trusted by companies from around the world.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 50 contacts → | ||||
Partial evidence “Schnoor Industrieelektronik develops individually tailored radio and communication solutions for a customer range of maritime, public safety, public transport, industry & energy.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 47 contacts → | ||||
Indirect evidence “Soluciones globales tecnológicas de ayuda a la pesca, a la navegación y seguridad en la mar.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 46 contacts → | ||||
Strong evidence “Maritronics is a leading provider of a comprehensive array of solutions for Marine navigation, Communication, Automation and Calibration and Control systems.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 44 contacts → | ||||
Strong evidence “Challenging Communication Boundaries Omnitronics is one of the world leaders in the design, manufacture and supply of mission critical communication systems.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 38 contacts → | ||||
Indirect evidence “Marintel was established in 2010 with a clear mission: to provide excellent service in the marine electronics, navigation, and shipping industry while prioritizing safety at sea.” Source: RevenueBase Database · checked Sep 20, 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 harbor communication systems. 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 harbor communication systems.
- Partial evidence
- Its own public description names part of port and harbor communication systems, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name port and harbor communication systems. 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 399 port and harbor communication systems worldwide
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Port and harbor communication systems worldwide at a glance
As of Sep 20, 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 harbor communication systems, 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 harbor communication systems are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “port and harbor communication systems”. 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 harbor communication systems), 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 harbor communication systems, 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, 1,906 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 20, 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 harbor communication systems by location
1 lists · largest firstEvery Port and harbor communication systems 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 harbor communication systems, 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 harbor communication systems are there worldwide?
RevenueBase identified 399 port and harbor communication systems 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?
Radio Holland, headquartered in Ad, tops this list with the largest team on record.
Which country has the most port and harbor communication systems?
The United States leads with 31 companies. Every port and harbor communication systems list by country and city is linked on this page.
Which city has the most port and harbor communication systems?
Singapore leads with 10 headquartered companies, followed by Dubai (8) and Mumbai (7).
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 1,906 verified decision-maker contacts tracked across these 399 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 20, 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.