Company lists · Data refreshed September 2026
Top 25 Maritime surveillance companies worldwide
RevenueBase identified 1,226 maritime surveillance companies worldwide as of September 2026 and tracks 22,166 professional contacts across them, including 5,511 with verified work emails. The United States is the largest market and Singapore the largest hub.
This list covers maritime surveillance 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 20, 2026. Country and city lists for maritime surveillance 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 maritime surveillance companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 1,847 contacts → | ||||
Indirect evidence “O Grupo CBO é uma das maiores empresas de apoio marítimo do Brasil.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 772 contacts → | ||||
Partial evidence “Saronic is building cutting-edge unmanned surface vehicles that enable maritime security and domain awareness by combining best-in-class hardware, software and artificial…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 575 contacts → | ||||
Partial evidence “CLS is a global company and pioneer provider of monitoring and surveillance solutions for the Earth, created in 1986.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 465 contacts → | ||||
Partial evidence “SeaOwl Group is a provider of outsourcing services and technology-based solutions for Maritime, Defense and Energy industries.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 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 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 374 contacts → | ||||
Partial evidence “GEOxyz is an international maritime data company specialized in hydrographic, geophysical, geotechnical and topographical surveys, site investigations, renewable energy support…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 364 contacts → | ||||
Partial evidence “Elcome was founded in 1970 and is one of the world’s largest maritime companies with a diversified portfolio of technologies, solutions and services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 338 contacts → | ||||
Partial evidence “OSI Maritime Systems is a leading provider of integrated navigation and tactical solutions designed for naval and maritime security operations.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 333 contacts → | ||||
Partial evidence “Al Seer Marine is a global maritime organization headquartered in Abu Dhabi.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 332 contacts → | ||||
Partial evidence “Since our founding in 2009, we have been dedicated to providing expert and cost-effective maritime solutions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 306 contacts → | ||||
Indirect evidence “Kraken Robotics is a global marine technology company transforming subsea intelligence through advanced sensors, software, and integrated systems.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 288 contacts → | ||||
Indirect evidence “Formerly Elcome Marine Services Pvt.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 279 contacts → | ||||
Partial evidence “Sperry Marine provides the commercial and defence maritime industry with Navigation Solutions that excel in efficiency, reliability and safety.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 266 contacts → | ||||
Partial evidence “Lloyd’s List Intelligence delivers the trusted maritime data, analytics, and insight that keeps global trade moving.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 256 contacts → | ||||
Partial evidence “Windward is the leading Maritime AI™ company delivering full visibility across the seas through sensor-agnostic intelligence and agentic workflows that turn ocean data into…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 247 contacts → | ||||
Indirect evidence “Global vision, customized services.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 245 contacts → | ||||
Partial evidence “Saildrone is a maritime defense company with a relentless passion for performance.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 213 contacts → | ||||
Indirect evidence “We collect and process information to visualise the conditions of the seabed.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 204 contacts → | ||||
Partial evidence “Shaping the future of maritime.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 196 contacts → | ||||
Indirect 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 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 183 contacts → | ||||
Partial evidence “Pole Star Global is a maritime intelligence and technology solutions company, focusing on reducing risk and optimising trade efficiency.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 162 contacts → | ||||
Partial evidence “Kyklades Maritime Corporation (KMC) balances the importance of maritime tradition with a forward thinking approach coupled with an innovative policy that assists in propelling us…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 161 contacts → | ||||
Partial evidence “Creating clarity, control and confidence for modern maritime operations with OpenOcean STUDIO.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 142 contacts → | ||||
Partial evidence “Exail Technologies is a defense technology group delivering autonomous maritime drone systems and advanced navigation solutions for naval and defense customers operating in…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 138 contacts → | ||||
Partial evidence “Patriot Maritime is a leading maritime contractor to the U.S.” 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: maritime surveillance 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 maritime surveillance companies.
- Partial evidence
- Its own public description names part of maritime surveillance companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name maritime surveillance 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 1,226 maritime surveillance companies worldwide
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Maritime surveillance companies 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 maritime surveillance 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 maritime surveillance companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “maritime surveillance 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 maritime surveillance 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 maritime surveillance 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, 5,511 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.
Maritime surveillance companies by location
6 lists · largest firstEvery Maritime surveillance companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Maritime surveillance companies based in the United States167
- Maritime surveillance companies based in the United Kingdom123
- Maritime surveillance companies based in India54
- Maritime surveillance companies based in France51
- Maritime surveillance companies based in the Netherlands39
- Maritime surveillance companies based in Australia37
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 maritime surveillance 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 maritime surveillance companies are there worldwide?
RevenueBase identified 1,226 maritime surveillance 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?
Grupo CBO, headquartered in Niteroi, tops this list with the largest team on record.
Which country has the most maritime surveillance companies?
The United States leads with 167 companies, followed by the United Kingdom (123) and India (54). Every maritime surveillance companies list by country and city is linked on this page.
Which city has the most maritime surveillance companies?
Singapore leads with 36 headquartered companies, followed by London (33) and Lagos (13).
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 5,511 verified decision-maker contacts tracked across these 1,226 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.