Company lists · Data refreshed September 2026
Top 25 Marine engine conversion companies worldwide
RevenueBase identified 943 marine engine conversion companies worldwide as of September 2026 and tracks 6,191 professional contacts across them, including 1,572 with verified work emails. The United States is the largest market and Istanbul the largest hub.
This list covers marine engine conversion 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 marine engine conversion 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 marine engine conversion companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 376 contacts → | ||||
Indirect evidence “Goltens is a service organization that enables shipowners and power plant operators all over the world to minimize asset downtime via diesel services, in-situ machining and BWT…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 2 | 230 contacts → | ||||
Indirect evidence “VMS Group is now part of Hoyer VMS Group.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 3 | 178 contacts → | ||||
Strong evidence “For 100 years, Moteurs Baudouin has manufactured the highest quality engines for marine and power generation applications.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 4 | 86 contacts → | ||||
Partial evidence “Spare parts and maintenance services for 4-stroke high-speed and medium-speed engines as well as propulsion systems & reliability solutions for all types of 2/4 Stroke, Inline/V…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 5 | 84 contacts → | ||||
Partial evidence “Caudwell Marine was founded to bring a new standard of diesel outboard technology to the marine industry.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 6 | 78 contacts → | ||||
Partial evidence “As the manufacturer of the only purpose-built high-powered diesel outboard, we are working to power the global marine industry through sustainable innovation, applying alternative…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 7 | 77 contacts → | ||||
Partial evidence “Marine operators often struggle with costly downtime and performance issues.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 8 | 68 contacts → | ||||
Strong evidence “Royston are a dynamic and expanding diesel engine supply, service and repair company operating successfully within the marine, offshore, industrial, defence and rail sectors for…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 9 | 55 contacts → | ||||
Partial evidence “NPS Driven is a value adding reseller of renowned brands for off-highway and marine applications.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 10 | 54 contacts → | ||||
Indirect evidence “Providing Safety through Mechanical Excellence.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 11 | 54 contacts → | ||||
Indirect evidence “We’re Reviva.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 12 | 53 contacts → | ||||
Partial evidence “Steyr Motors AG combines profound engine design expertise with vast operational experience to provide a full life-cycle support to our clients.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 13 | 52 contacts → | ||||
Strong evidence “OXE Marine is the company behind the world’s first high-performance diesel outboard engine, the OXE Diesel, setting new standards for durability, fuel efficiency and low emissions.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 14 | 50 contacts → | ||||
Strong evidence “Mastry Engine Center has achieved its reputation as the team to turn to when faced with challenging marine diesel powertrain applications and installations, providing solutions…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 15 | 48 contacts → | ||||
Strong evidence “Solé Advance: Marine Engines and Onboard Electrical Power solutions Reimagining the future of the sea, Solé Advance specializes in the most advanced technology in marine engines…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 16 | 46 contacts → | ||||
Partial evidence “BlueNav develops innovative solutions that convert any boat normally propelled by combustion engines, into a hybrid electric boat.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 17 | 45 contacts → | ||||
Partial evidence “Established in 1981, Marinsa International Inc, has become a leading supplier of Medium Speed Diesel propulsion for Tug Boats, Supply Vessels, Tuna and Sardine Purse Seiners as…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 18 | 42 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 19 | 40 contacts → | ||||
Indirect evidence “We have been family owned and operated since 1970.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 20 | 40 contacts → | ||||
Partial evidence “At BADR Marine, we take marine care to new heights.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 21 | 37 contacts → | ||||
Partial evidence “Koedood Marine Group is gespecialiseerd in scheepsmotoren.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 22 | 35 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 23 | 33 contacts → | ||||
Partial evidence “Refit, Conversions & New Buildingings for all types of vessels, Crusie ships, Ferries, Merchant and offshore.” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 24 | 33 contacts → | ||||
Strong evidence “PB ASHER Ltd specialise in the reconditioning, supply and exchange of Marine, Commercial and Industrial engine components such as Cylinder Heads, Liners, Pistons, Con Rods, Fuel…” Source: RevenueBase Database · checked Sep 20, 2026Thanks. The Data Team will review it. | |||||
| 25 | 33 contacts → | ||||
Strong evidence “HSM Marine Engineering Pte Ltd - Incorporated in Singapore with a prime objective to provide total solutions to the ship owners / managers on main propulsion as well as power…” 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: marine engine conversion 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 marine engine conversion companies.
- Partial evidence
- Its own public description names part of marine engine conversion companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name marine engine conversion 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 943 marine engine conversion companies worldwide
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Marine engine conversion 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 marine engine conversion 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 marine engine conversion companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “marine engine conversion 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 marine engine conversion 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 marine engine conversion 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, 1,572 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.
Marine engine conversion companies by location
6 lists · largest firstEvery Marine engine conversion companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Marine engine conversion companies based in the United States256
- Marine engine conversion companies based in the United Kingdom75
- Marine engine conversion companies based in the Netherlands57
- Marine engine conversion companies based in France54
- Marine engine conversion companies based in Canada33
- Marine engine conversion companies based in Australia26
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 marine engine conversion 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 marine engine conversion companies are there worldwide?
RevenueBase identified 943 marine engine conversion 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?
Goltens Worldwide, headquartered in Dubai, tops this list with the largest team on record.
Which country has the most marine engine conversion companies?
The United States leads with 256 companies, followed by the United Kingdom (75) and the Netherlands (57). Every marine engine conversion companies list by country and city is linked on this page.
Which city has the most marine engine conversion companies?
Istanbul leads with 19 headquartered companies, followed by Singapore (16) and Fort Lauderdale (12).
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 1,572 verified decision-maker contacts tracked across these 943 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.