Company lists · Data refreshed September 2026
Top 25 Deep sea exploration companies based in the United States
RevenueBase identified 290 deep sea exploration companies headquartered in the United States as of September 2026 and tracks 16,473 professional contacts across them, including 3,610 with verified work emails. Houston is the largest hub.
This list covers deep sea exploration companies headquartered in the 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 19, 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 deep sea exploration companies based in the 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 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 672 contacts → | ||||
Indirect evidence “Oceaneering International, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 538 contacts → | ||||
Indirect evidence “On April 15, 2021, Noble Corporation plc completed its acquisition of Pacific Drilling Company LLC.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 453 contacts → | ||||
Indirect evidence “Founded in 1955, Mote Marine Laboratory & Aquarium is an independent, nonprofit 501(c)3 research organization based in Sarasota, Fla, with additional field stations in eastern…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 277 contacts → | ||||
Indirect evidence “Resolve Marine, a global leader in vessel salvage, emergency response, compliance and specialized marine services, has served and supported clients and projects for 40 years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 228 contacts → | ||||
Partial evidence “Founded in 1904 to promote exploration “by all means possible,” The Explorers Club is an international not-for-profit organization dedicated to the advancement of field research…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 211 contacts → | ||||
Partial evidence “MBARI is a nonprofit research institution where scientists and engineers work together to explore and study the sea.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 176 contacts → | ||||
Indirect evidence “Welcome to Subsea Global Solutions where EVERY DAY our goal is to deliver unrivaled service.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 170 contacts → | ||||
Indirect evidence Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 135 contacts → | ||||
Strong evidence “OceanX is a mission to explore the unseen ocean, map uncharted areas of the world, observe rare deep-sea creatures, pursue scientific and medical breakthroughs, and then bring all…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 121 contacts → | ||||
Indirect evidence “Sofar Ocean is the leading ocean intelligence platform, closing the data gap for better predictability and outcomes.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 115 contacts → | ||||
Indirect evidence “Benthic is a global leader in offshore marine geotechnical investigation, survey, analysis and design.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 111 contacts → | ||||
Indirect evidence “This company has been divested.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 107 contacts → | ||||
Indirect evidence “TDI-Brooks is a 27-year-old research and service company specializing in geotechnical and offshore survey projects; multi-disciplinary oceanographic and environmental projects…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 106 contacts → | ||||
Indirect evidence “As the youngest active dive vessels in the Gulf of Mexico, we strive to safely deliver service with fervent integrity and determination.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 94 contacts → | ||||
Partial evidence “DEEP is an international ocean engineering and technology company on a mission to make humans aquatic.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 84 contacts → | ||||
Indirect evidence “At Huish Outdoors, we've brought together the Best Brands in Dive to create the leading scuba and immersion technology company in the world.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 84 contacts → | ||||
Partial evidence “Schmidt Ocean Institute supports research and exploration projects that help expand the understanding of the world's oceans through technological advancements, data-rich…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 79 contacts → | ||||
Indirect evidence “Bordelon Marine is a leading provider of offshore support and subsea services operating in the U.S.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 75 contacts → | ||||
Indirect evidence “At Greensea IQ, we are redefining the future of subsea robotics through cutting-edge solutions tailored to the Defense and Maritime industries.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 73 contacts → | ||||
Indirect evidence “Subsea Construction” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 71 contacts → | ||||
Indirect evidence “Seaward Marine Services was founded in 1972 to conduct underwater search and recovery operations, Seaward Marine has become the diving services leader in the field of underwater…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 65 contacts → | ||||
Indirect evidence “VideoRay is now an AV company!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 64 contacts → | ||||
Partial evidence “Blue Robotics makes low-cost, high-performance components for marine robotics to enable the next generation of ocean exploration!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 62 contacts → | ||||
Indirect evidence “Nauticus Robotics, Inc.(Nasdaq: KITT) is a Houston-area developer of ocean robots, autonomy software and services delivered to the ocean industries.” Source: RevenueBase Database · checked Sep 19, 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: deep sea exploration 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 deep sea exploration companies.
- Partial evidence
- Its own public description names part of deep sea exploration companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name deep sea exploration 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 290 deep sea exploration companies based in the United States
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Deep sea exploration companies based in the United States at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 290 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 deep sea exploration 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 the United States whose own description of what they do matches “deep sea exploration 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 deep sea exploration 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 deep sea exploration companies, and records with no verified work email. Companies headquartered outside United States 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, 3,610 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 19, 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.
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 deep sea exploration 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 deep sea exploration companies are there based in the United States?
RevenueBase identified 290 deep sea exploration companies headquartered in the 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 deep sea exploration companies?
Houston leads with 19 headquartered companies, followed by Seattle (11) and Houma (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 3,610 verified decision-maker contacts tracked across these 290 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 19, 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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