Company lists · Data refreshed September 2026
Top 25 Maritime transportation companies based in Houston, United States
RevenueBase identified 88 maritime transportation companies headquartered in Houston, United States as of September 2026 and tracks 5,221 professional contacts across them, including 1,070 with verified work emails. Miami is the largest hub.
This list covers maritime transportation companies headquartered in Houston, United States, 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 15, 2026.
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 transportation companies based in Houston, United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 3,290 contacts → | ||||
Indirect evidence “Tidewater Inc.(Tidewater) is the owner and operator of the world’s largest Offshore Support Vessel (OSV) fleet.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 2 | 351 contacts → | ||||
Indirect evidence “UTC Overseas is an international freight forwarding and cargo logistics company offering comprehensive door-to-door services tailored to customers’ needs.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 3 | 284 contacts → | ||||
Indirect evidence “Kirby Offshore Marine is the largest United States operator of coastal tank barges and towing vessels participating in the regional distribution of refined products, black oil…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 4 | 226 contacts → | ||||
Partial evidence “Exmar Offshore Group Houston is the American branch of Exmar (Euronext: EXM), a descendant of the Compagnie Maritime Belge (Euronext: CMB) maritime group founded in 1895 in…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 5 | 157 contacts → | ||||
Partial evidence “Campbell Transportation Company is a privately held business focused on providing safe, efficient, and reliable service to marine transportation customers throughout the inland…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 6 | 153 contacts → | ||||
Strong evidence “Signet Maritime Corporation is a diverse international marine transportation and logistics services company.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 7 | 58 contacts → | ||||
Partial evidence “Cocoon CLS, a minority owned business, is your one stop shop to all your freight transportation needs.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 8 | 55 contacts → | ||||
Indirect evidence “Buffalo Marine Service, inc.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 9 | 49 contacts → | ||||
Partial evidence “Rose Cay Maritime (RCM) is a growing Jones Act company focused on leading the Energy Transition.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 10 | 48 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 11 | 38 contacts → | ||||
Indirect evidence “About SPI Marine: About SPI Marine: SPI Marine is the most experienced shipping services provider across the sensitive cargoes supply chain, with over years of combined knowledge…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 12 | 36 contacts → | ||||
Indirect evidence “Operating one of the largest and most diverse fleets on the water, Navig8 Chemicals is consolidating the industrial chemicals shipping sector for the benefit of owners and…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 13 | 29 contacts → | ||||
Partial evidence “Founded in 1905, Biehl is a full service agency handling the needs of various maritime interests including ship owners / operators, charterers and cargo interests.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 14 | 28 contacts → | ||||
Indirect evidence “Established in 1991, Slade Shipping Inc.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 15 | 24 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 16 | 21 contacts → | ||||
Partial evidence “Freight Solutions, LLC is a full service transportation company.Our services include line pipe stringing,tubing/casing delivery,ships discharge,pipe storage, and brokerage.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 17 | 19 contacts → | ||||
Indirect evidence “Hanwha Group is one of the largest multi-industry and multi-national conglomerates in South Korea, and one of the Fortune Global 500 companies.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 18 | 14 contacts → | ||||
Indirect evidence “American Shipping and Chartering is renowned for its reliability and expertise, making us the top choice for carriers and charterers.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 19 | 14 contacts → | ||||
Partial evidence “ABA EXPRESS is a shipping corporation established in 1993 with Headquarters in Houston, Texas, dedicated to providing the most reliable and professional Worldwide Transportation…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 20 | 11 contacts → | ||||
Partial evidence “At MTZ Transportation Services, LLC we specialize in the Transportation of liquid bulk commodities from all major ports, railroads and refineries within all 48 contiguous states.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 21 | 10 contacts → | ||||
Indirect evidence “OCG Logistics is an woman owned international asset based logistics provider with offices in US, Europe and China.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 22 | 9 contacts → | ||||
Indirect evidence “CHIPOLBROK AMERICA INC – was established in 2004 in Houston as a wholly owned subsidiary and exclusive representative of CHIPOLBROK (Chinese-Polish Joint Stock Shipping Company…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 23 | 8 contacts → | ||||
Partial evidence “iShip is a worldwide leader provider of ocean, air and domestic transportation solutions.” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 24 | 7 contacts → | ||||
Indirect evidence “Since its inception in 1904, Fillette Green has remained dedicated to the representation of principals trading in the dry and liquid bulk trades, with a particular emphasis on…” Source: RevenueBase Database · checked Sep 15, 2026Thanks. The Data Team will review it. | |||||
| 25 | 5 contacts → | ||||
Partial evidence “Nautilus Logistics is part of the Nautilus Group of Companies which specializes in delivering safe, efficient & environmentally responsible maritime and ports related business…” Source: RevenueBase Database · checked Sep 15, 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 transportation 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 transportation companies.
- Partial evidence
- Its own public description names part of maritime transportation companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name maritime transportation 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 88 maritime transportation companies based in Houston, United States
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Maritime transportation companies based in Houston, United States at a glance
As of Sep 15, 2026Companies by employee count
Email recency for this list is measured across the whole United States list rather than for Houston, so it is reported there. Company counts and contact totals on this page are exact for Houston, over 88 companies.
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 transportation 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.
- What qualifies
- Companies headquartered in Houston, United States whose own description of what they do matches “maritime transportation 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 transportation 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 transportation companies, and records with no verified work email. Companies headquartered outside Houston are excluded even when they keep an office there.
- 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, 1,070 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 15, 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 transportation companies by metro in the United States
- Maritime transportation companies in Miami95
- Maritime transportation companies in Houston88
- Maritime transportation companies in New York36
- Maritime transportation companies in Seattle28
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 transportation 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 transportation companies are there based in Houston, United States?
RevenueBase identified 88 maritime transportation companies headquartered in Houston, United States 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?
Tidewater, headquartered in Houston, tops this list with the largest team on record.
Which city has the most maritime transportation companies?
Miami leads with 95 headquartered companies, followed by Houston (88) and New York (36).
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 1,070 verified decision-maker contacts tracked across these 88 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 15, 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.
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