Company lists · Data refreshed September 2026

Top 25 Bathymetric surveying companies based in the United States

RevenueBase identified 62 bathymetric surveying companies headquartered in the United States as of September 2026 and tracks 786 professional contacts across them, including 323 with verified work emails. Houston is the largest hub.

This list covers bathymetric surveying 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review
62Companies
786Contacts tracked
323Verified emails
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The 25 largest bathymetric surveying companies based in the United States

Ranked by team size
Top 25 of 62 bathymetric surveying companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to bathymetric surveying companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceHouston, TX, United StatesHQ checked Sep 19, 202651-200115 contacts →

Indirect evidence

“Benthic is a global leader in offshore marine geotechnical investigation, survey, analysis and design.”

Source: RevenueBase Database · checked Sep 19, 2026
2Indirect evidenceCollege Station, TX, United StatesHQ checked Sep 19, 202651-200107 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, 2026
3Indirect evidenceNorwood, NJ, United StatesHQ checked Sep 19, 202651-20055 contacts →

Indirect evidence

“Alpine are experts in acquiring, analyzing, and interpreting data from marine offshore, nearshore, and freshwater environments.”

Source: RevenueBase Database · checked Sep 19, 2026
4Indirect evidenceRichmond, CA, United StatesHQ checked Sep 19, 202611-5052 contacts →

Indirect evidence

“We are a vertically-integrated ocean exploration company developing proprietary robotics and software to quickly and cheaply explore the entirety of the Earth’s oceans on a scale…”

Source: RevenueBase Database · checked Sep 19, 2026
5Partial evidencePalmer, AK, United StatesHQ checked Sep 19, 202651-20038 contacts →

Partial evidence

“Provider of professional surveying services throughout the world safely, effectively, and economically.”

Source: RevenueBase Database · checked Sep 19, 2026
6Indirect evidenceLongmont, CO, United StatesHQ checked Sep 19, 202611-5036 contacts →

Indirect evidence

“3D at Depth is the world’s only true commercial deep-water LiDAR technology company.”

Source: RevenueBase Database · checked Sep 19, 2026
7Partial evidenceOld Saybrook, CT, United StatesHQ checked Sep 19, 202611-5034 contacts →

Partial evidence

“OSI is a highly responsive hydrographic, geophysical, physical oceanographic surveying and sediment sampling firm staffed with scientists, hydrographers, engineers, and…”

Source: RevenueBase Database · checked Sep 19, 2026
8Indirect evidenceShingle Springs, CA, United StatesHQ checked Sep 19, 202611-5033 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
9Partial evidenceDenver, CO, United StatesHQ checked Sep 19, 202611-5021 contacts →

Partial evidence

“TCarta is the world's foremost supplier of bathymetric data for near-shore areas around the world.”

Source: RevenueBase Database · checked Sep 19, 2026
10Indirect evidenceHouston, TX, United StatesHQ checked Sep 19, 202611-5019 contacts →

Indirect evidence

“Zupt provides the technology, offshore expertise, and data needed to execute critical offshore operations with confidence and reduced risk.”

Source: RevenueBase Database · checked Sep 19, 2026
11Indirect evidenceLos Altos, CA, United StatesHQ checked Sep 19, 20261-1018 contacts →

Indirect evidence

“Chesapeake Technology is a leader in ocean geophysical and seafloor mapping solutions.”

Source: RevenueBase Database · checked Sep 19, 2026
12Indirect evidenceIrvine, CA, United StatesHQ checked Sep 19, 202611-5016 contacts →

Indirect evidence

“KDM MERIDIAN….”

Source: RevenueBase Database · checked Sep 19, 2026
13Partial evidenceAnchorage, AK, United StatesHQ checked Sep 19, 202611-5016 contacts →

Partial evidence

“JOA Survey's LLC is an Alaska based surveying company specializing in tides, water level measurement, vertical datums and geodetic networks.”

Source: RevenueBase Database · checked Sep 19, 2026
14Indirect evidencePrairieville, LA, United StatesHQ checked Sep 19, 202651-20015 contacts →

Indirect evidence

“Tesla Offshore, LLC provides high resolution marine geophysical survey services in the Gulf of Mexico and internationally.”

Source: RevenueBase Database · checked Sep 19, 2026
15Indirect evidencePocasset, MA, United StatesHQ checked Sep 19, 202611-5014 contacts →

Indirect evidence

“Falmouth Scientific, Inc.(FSI) is a Pocasset, MA, USA based designer and manufacturer of precision oceanographic instrumentation and systems including the Bubble Gun family of…”

Source: RevenueBase Database · checked Sep 19, 2026
16Partial evidenceJacksonville, FL, United StatesHQ checked Sep 19, 202611-5014 contacts →

Partial evidence

“Arc Surveying & Mapping, Inc provides hydrographic, topographic and land surveys globally, specializing in ports, harbors, bridges, dredging and related services.”

Source: RevenueBase Database · checked Sep 19, 2026
17Partial evidenceWilmington, NC, United StatesHQ checked Sep 19, 202611-5014 contacts →

Partial evidence

“While freshly incorporated in August of 2013, TI Coastal Service’s founders have over 50+ years combined experience in multi-beam sonar and single beam hydrographic surveying…”

Source: RevenueBase Database · checked Sep 19, 2026
18Indirect evidenceImperial Beach, CA, United StatesHQ checked Sep 19, 202611-5012 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
19Indirect evidenceHouston, TX, United StatesHQ checked Sep 19, 20261-1011 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
20Partial evidenceScott, LA, United StatesHQ checked Sep 19, 202611-509 contacts →

Partial evidence

“HydroTerra Technologies, LLC is a full service land and hydrographic surveying firm, specializing in inshore and near shore shallow water hydrographic surveying and a wide range…”

Source: RevenueBase Database · checked Sep 19, 2026
21Indirect evidenceGrenada, MS, United StatesHQ checked Sep 19, 202611-509 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 19, 2026
22Indirect evidenceSeattle, WA, United StatesHQ checked Sep 19, 20261-108 contacts →

Indirect evidence

“Since 1983, Williamson & Associates (Wassoc) has been on the cutting edge of subsea engineering.”

Source: RevenueBase Database · checked Sep 19, 2026
23Indirect evidenceHouston, TX, United StatesHQ checked Sep 19, 20261-107 contacts →

Indirect evidence

“Our company offers several Products & Services in support of the Offshore Survey, Construction and Research industries.”

Source: RevenueBase Database · checked Sep 19, 2026
24Partial evidenceWoodbridge, CT, United StatesHQ checked Sep 19, 20261-105 contacts →

Partial evidence

“Providing a variety of services within the land surveying space.”

Source: RevenueBase Database · checked Sep 19, 2026
25Indirect evidenceSutton, AK, United StatesHQ checked Sep 19, 20261-105 contacts →

Indirect evidence

“Benthic GeoScience, an incorporated company founded in Alaska on a collaborative business model, employs specialists in the marine geophysical, oceanographic, and marine geology…”

Source: RevenueBase Database · checked Sep 19, 2026

Showing 25 of 62 bathymetric surveying companies based in the United States

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Bathymetric surveying companies based in the United States at a glance

As of Sep 19, 2026
41.1%Verified-email coverage
12.7Average contacts per company
1-10Median size (employees)
11.3%Largest-city concentration · Houston
Sep 19, 2026Page data refreshed

Companies by employee count

1-10
33
11-50
22
51-200
7

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 62 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 bathymetric surveying 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 “bathymetric surveying 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 bathymetric surveying 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 bathymetric surveying 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, 323 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 bathymetric surveying 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 bathymetric surveying companies are there based in the United States?

RevenueBase identified 62 bathymetric surveying 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?

Benthic - Utec, headquartered in Houston, tops this list with the largest team on record.

Which city has the most bathymetric surveying companies?

Houston leads with 7 headquartered companies, followed by Seattle (4) and Portland (2).

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 323 verified decision-maker contacts tracked across these 62 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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Related lists

Bathymetric surveying companies by geography

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.