Company lists · Data refreshed September 2026

Top 25 Underwater inspection companies based in the United States

Name: Underwater inspection companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 22, 2026 460 companies tracked

RevenueBase identified 460 underwater inspection companies headquartered in the United States as of September 2026 and tracks 8,625 professional contacts across them, including 2,001 with verified work emails. Houston is the largest hub.

This list covers underwater inspection 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 22, 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 22, 2026 86% judged on-target in blind review

460Companies

8,625Contacts tracked

2,001Verified emails

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The 25 largest underwater inspection companies based in the United States

Ranked by team size

Top 25 of 460 underwater inspection companies based in the United States, ranked by team size, largest first. Data refreshed Sep 22, 2026. RevenueBase Smart Search rates how each company's information relates to underwater inspection 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	KBR Energo Engineering	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	n/a	789 contacts →
	Indirect evidence “Energo Engineering is a KBR Company that provides the full package of structural integrity management (SIM) and advanced structural engineering services for offshore floating and…” Source: RevenueBase Database · checked Sep 22, 2026
2	Imia, LLC	Indirect evidence	Chesapeake, VA, United StatesHQ checked Sep 22, 2026	1,001-5,000	293 contacts →
	Indirect evidence “Founded in 1985 and a distinguished part of ARMADA Parent Inc, established itself as a premier marine preservation company, delivering an extensive suite of services to…” Source: RevenueBase Database · checked Sep 22, 2026
3	Trendsetter Engineering, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	201-500	259 contacts →
	Indirect evidence “Trendsetter is a global provider of specialized subsea solutions to the oil and gas industry's toughest challenges.” Source: RevenueBase Database · checked Sep 22, 2026
4	Ballard Marine Construction	Partial evidence	Washougal, WA, United StatesHQ checked Sep 22, 2026	51-200	236 contacts →
	Partial evidence “Ballard Marine Construction (Ballard) is a specialty marine and underwater contractor.” Source: RevenueBase Database · checked Sep 22, 2026
5	Techcorr Usa, LLC	Partial evidence	Pasadena, TX, United StatesHQ checked Sep 22, 2026	501-1,000	226 contacts →
	Partial evidence “The TechCorr name is synonymous with safe, quality inspection services.” Source: RevenueBase Database · checked Sep 22, 2026
6	Global Diving & Salvage, INC	Indirect evidence	Seattle, WA, United StatesHQ checked Sep 22, 2026	201-500	217 contacts →
	Indirect evidence “Global is a leader in the marine services industry with decades of experience managing complex, critical and technical projects in and around the water.” Source: RevenueBase Database · checked Sep 22, 2026
7	Underwater Construction Corporation	Partial evidence	Essex, CT, United StatesHQ checked Sep 22, 2026	201-500	190 contacts →
	Partial evidence “Since 1969, Underwater Construction Corporation (UCC) has been a leading provider of underwater services to commercial and government facilities.” Source: RevenueBase Database · checked Sep 22, 2026
8	Subsea Global Solutions	Indirect evidence	Miami, FL, United StatesHQ checked Sep 22, 2026	201-500	176 contacts →
	Indirect evidence “Welcome to Subsea Global Solutions where EVERY DAY our goal is to deliver unrivaled service.” Source: RevenueBase Database · checked Sep 22, 2026
9	Aqueos Corporation	Indirect evidence	Broussard, LA, United StatesHQ checked Sep 22, 2026	201-500	175 contacts →
	Indirect evidence “Aqueos is a 'World Class Subsea Service Provider℠' with our core values being a commitment to “excellence” and our dedication to an “accident-free” workplace.” Source: RevenueBase Database · checked Sep 22, 2026
10	Phoenix International Holdings, INC	Indirect evidence	Largo, United StatesHQ checked Sep 22, 2026	201-500	170 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
11	Qualspec	Partial evidence	Deer Park, TX, United StatesHQ checked Sep 22, 2026	1,001-5,000	149 contacts →
	Partial evidence “QualSpec is a leading industrial inspection firm headquartered in Houston, Texas.” Source: RevenueBase Database · checked Sep 22, 2026
12	On & Offshore Quality Control Specialist, Llc. QCS	Indirect evidence	Austin, TX, United StatesHQ checked Sep 22, 2026	501-1,000	130 contacts →
	Indirect evidence “Welcome to On & Offshore Quality Control Specialists, LLC.” Source: RevenueBase Database · checked Sep 22, 2026
13	Bisso Marine	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	201-500	118 contacts →
	Indirect evidence “BISSO MARINE is a subsea & offshore midstream infrastructure contractor that has been providing unsurpassed service and quality to the marine and energy industries since 1890.” Source: RevenueBase Database · checked Sep 22, 2026
14	SUS	Strong evidence	Baltimore, MD, United StatesHQ checked Sep 22, 2026	11-50	118 contacts →
	Strong evidence “SUS specializes in underwater marine construction including bridges, dams, pipelines, intakes, outfalls, inspection services, piers and wharfs and other public safety and local…” Source: RevenueBase Database · checked Sep 22, 2026
15	Crofton	Indirect evidence	Portsmouth, VA, United StatesHQ checked Sep 22, 2026	51-200	109 contacts →
	Indirect evidence “Solutions Above & Below the Waterline, Since 1949: Commercial Diving \| Marine Construction \| Crane Rental & Rigging Maritime Energy Utility Construction Ship Repair Engineering…” Source: RevenueBase Database · checked Sep 22, 2026
16	Aries Marine LLC	Indirect evidence	Garden Grove, United StatesHQ checked Sep 22, 2026	201-500	90 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026
17	Deepocean US	Indirect evidence	Houston, TX, United StatesHQ checked Sep 22, 2026	51-200	81 contacts →
	Indirect evidence “DeepOcean is the leading, subsea services provider, servicing any equipment with specialized expertise.” Source: RevenueBase Database · checked Sep 22, 2026
18	Tailing LLC	Partial evidence	Belle Chasse, LA, United StatesHQ checked Sep 22, 2026	51-200	79 contacts →
	Partial evidence “Tailing, LLC has been serving the Land/Marine oil and gas sector with inspection services since 2007.” Source: RevenueBase Database · checked Sep 22, 2026
19	Baker Marine Solutions, LLC	Partial evidence	Covington, LA, United StatesHQ checked Sep 22, 2026	11-50	76 contacts →
	Partial evidence “Baker Marine Solutions is a leading provider of marine assurance, engineering and consulting services, performing DP assurance, OCIMF- OVID inspections, IMCA CMID inspections…” Source: RevenueBase Database · checked Sep 22, 2026
20	Greensea IQ	Indirect evidence	Richmond, VT, United StatesHQ checked Sep 22, 2026	51-200	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 22, 2026
21	Hydra Subsea & Offshore Construction	Indirect evidence	Sugar Land, TX, United StatesHQ checked Sep 22, 2026	51-200	73 contacts →
	Indirect evidence “Subsea Construction” Source: RevenueBase Database · checked Sep 22, 2026
22	Seaward Marine Services, LLC	Partial evidence	Norfolk, VA, United StatesHQ checked Sep 22, 2026	51-200	71 contacts →
	Partial 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 22, 2026
23	UESI	Partial evidence	Fort Pierce, FL, United StatesHQ checked Sep 22, 2026	51-200	69 contacts →
	Partial evidence “UESI offers a comprehensive selection of services that include consulting, technical services, QA/QC services, inspection, maintenance, repair, and marine construction.” Source: RevenueBase Database · checked Sep 22, 2026
24	Videoray, An AV Company	Indirect evidence	Pottstown, PA, United StatesHQ checked Sep 22, 2026	1,001-5,000	65 contacts →
	Indirect evidence “VideoRay is now an AV company!” Source: RevenueBase Database · checked Sep 22, 2026
25	Square Robot INC	Indirect evidence	Marlborough, United StatesHQ checked Sep 22, 2026	51-200	64 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 22, 2026

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: underwater inspection 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 underwater inspection companies.
Partial evidence: Its own public description names part of underwater inspection companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name underwater inspection 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 460 underwater inspection companies based in the United States

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Underwater inspection companies based in the United States at a glance

As of Sep 22, 2026

23.2%Verified-email coverage

18.8Average contacts per company

1-10Median size (employees)

7.8%Largest-city concentration · Houston

Sep 22, 2026Page data refreshed

Companies by employee count

1-10

240

11-50

146

51-200

201-500

501-1,000

1,001-5,000

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 460 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 underwater inspection 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 “underwater inspection 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 underwater inspection 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 underwater inspection 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, 2,001 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 22, 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.

Underwater inspection companies by metro

Underwater inspection companies in Houston36

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 underwater inspection 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 underwater inspection companies are there based in the United States?

RevenueBase identified 460 underwater inspection 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?

KBR Energo Engineering, headquartered in Houston, tops this list with the largest team on record.

Which city has the most underwater inspection companies?

Houston leads with 36 headquartered companies, followed by Fort Lauderdale (9) and Seattle (9).

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 2,001 verified decision-maker contacts tracked across these 460 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 22, 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.