Company lists · Data refreshed September 2026

Top 25 Marine engineering consultants based in Houston, United States

Name: Marine engineering consultants based in Houston, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 112 companies tracked

RevenueBase identified 112 marine engineering consultants headquartered in Houston, United States as of September 2026 and tracks 2,322 professional contacts across them, including 603 with verified work emails. Houston is the largest hub.

This list covers marine engineering consultants 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 17, 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 17, 2026 86% judged on-target in blind review

112Companies

2,322Contacts tracked

603Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest marine engineering consultants based in Houston, United States

Ranked by team size

Top 25 of 112 marine engineering consultants based in Houston, United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to marine engineering consultants: 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	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	n/a	789 contacts →
	Partial 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 17, 2026
2	Zentech Incorporated	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	181 contacts →
	Partial evidence “Zentech, Inc, an engineering consulting and software development company, headquartered in Houston, TX, is comprised of experienced professionals specializing in providing…” Source: RevenueBase Database · checked Sep 17, 2026
3	Perc Engineering	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	124 contacts →
	Partial evidence “PERC Engineering is a full-service engineering & project management firm in the oil & gas energy sector.” Source: RevenueBase Database · checked Sep 17, 2026
4	Marine And Construction	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	n/a	72 contacts →
	Partial evidence “Marine and Construction focuses on customer needs across the entire life cycle of assets within the offshore and marine industry.” Source: RevenueBase Database · checked Sep 17, 2026
5	Pinnacle Engineering	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	62 contacts →
	Partial evidence “Since 1993, Pinnacle has remained focused on providing practical and complete engineering services to the offshore oil and gas industry.” Source: RevenueBase Database · checked Sep 17, 2026
6	OIL Field Development Engineering OFD	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	41 contacts →
	Partial evidence “OFD is a full-service engineering contractor committed to helping our client’s complete successful offshore and onshore oil and gas projects covering both upstream, midstream and…” Source: RevenueBase Database · checked Sep 17, 2026
7	Oars Group	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	37 contacts →
	Partial evidence “Marine geoscience consulting group specializing in survey project consulting, data management, and the provision of experienced field personnel in support of offshore energy…” Source: RevenueBase Database · checked Sep 17, 2026
8	Ch-Iv International	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	32 contacts →
	Indirect evidence “As an extension of the Owner's team, we support Project Development and Asset Life Extensions through decades of experience and deep industry expertise.” Source: RevenueBase Database · checked Sep 17, 2026
9	Lonestar Deepwater, LLC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	29 contacts →
	Indirect evidence “Established in November LoneStar Deepwater, LLC was formed with a vision and with a goal, of becoming a “Leading Provider of Project Management Services” within the Energy…” Source: RevenueBase Database · checked Sep 17, 2026
10	RIO Controls & Hydraulics	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	27 contacts →
	Partial evidence “Rio Marine is a conglomerate of companies and divisions that provides a multitude of services from electrical & hydraulic installation & service, hydraulics cylinders (new &…” Source: RevenueBase Database · checked Sep 17, 2026
11	Lone Star Maritime	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	25 contacts →
	Strong evidence “Lone Star Maritime provides full service marine consultancy services to the heavy lift and project cargo transportation industry.” Source: RevenueBase Database · checked Sep 17, 2026
12	Calcgen Solutions	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	21 contacts →
	Partial evidence “Calcgen Solutions believes in quality engineering service delivery to our clients.” Source: RevenueBase Database · checked Sep 17, 2026
13	4d Nav, LLC	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	20 contacts →
	Partial evidence “We are a premier survey/engineering software development and consulting company specializing in offshore energy sector.” Source: RevenueBase Database · checked Sep 17, 2026
14	Knighthawk Engineering, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	20 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
15	Microalloying International INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	19 contacts →
	Partial evidence “Recognized throughout the oil and gas industry for consulting expertise in materials, fabrication, and engineering, Microalloying focuses on critical pipelines, both onshore and…” Source: RevenueBase Database · checked Sep 17, 2026
16	Naslan Angola LDA	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	16 contacts →
	Indirect evidence “Naslan Angola Lda is a member of the NASLAN GROUP.” Source: RevenueBase Database · checked Sep 17, 2026
17	Star Engineering Services, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	15 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
18	SSP Engineering And Consulting	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	15 contacts →
	Partial evidence “SSP Engineering & Consulting is a consulting firm based in the Houston Metropolitan area.” Source: RevenueBase Database · checked Sep 17, 2026
19	The Shearer Group, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	12 contacts →
	Indirect evidence “The Shearer Group, Inc.(TSGI) located in Houston, Texas, is the global leader for design of inland towboats and barges.” Source: RevenueBase Database · checked Sep 17, 2026
20	KBL Marine	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	10 contacts →
	Partial evidence “KBL Marine has been developing a new service in marine surveys.” Source: RevenueBase Database · checked Sep 17, 2026
21	NEW Wave Offshore Energy	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1-10	8 contacts →
	Partial evidence “We advise Oil & Gas and Renewables Majors on safely executing marine operations worldwide.” Source: RevenueBase Database · checked Sep 17, 2026
22	3d Marine	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	8 contacts →
	Partial evidence “Part of Brookes Bell and providing the same high-quality level of experience and expertise, 3D Marine is a premier full-service consulting group experienced in all aspects of…” Source: RevenueBase Database · checked Sep 17, 2026
23	Heneco	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	7 contacts →
	Strong evidence “HENECO is a specialist consultancy providing Engineering, Project Management and Technical Consulting Services - covering Oil and Gas, Infrastructure and Industrial Services.” Source: RevenueBase Database · checked Sep 17, 2026
24	Manatee, INC	Partial evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	6 contacts →
	Partial evidence “Manatee is a seasoned subsea engineering consulting firm that specializes in subsea oil and gas operations.” Source: RevenueBase Database · checked Sep 17, 2026
25	Alan C. Mcclure Associates, INC	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	1-10	6 contacts →
	Indirect evidence “Headquartered in Houston, Texas, Alan C.” Source: RevenueBase Database · checked Sep 17, 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: marine engineering consultants. 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 engineering consultants.
Partial evidence: Its own public description names part of marine engineering consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine engineering consultants. 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 112 marine engineering consultants based in Houston, United States

See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 603 reachable decision-makers.

Free signup · no credit card

View the full list →

Marine engineering consultants based in Houston, United States at a glance

As of Sep 17, 2026

26.0%Verified-email coverage

20.7Average contacts per company

11-50Median size (employees)

100.0%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

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 112 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 marine engineering consultants, 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 “marine engineering consultants”. 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 engineering consultants), 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 engineering consultants, 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, 603 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 17, 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 engineering consultants by metro in the United States

Marine engineering consultants in Houston112
Marine engineering consultants in Fort Lauderdale31
Marine engineering consultants in Seattle26

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 engineering consultants, 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 engineering consultants are there based in Houston, United States?

RevenueBase identified 112 marine engineering consultants 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?

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

Which city has the most marine engineering consultants?

Houston leads with 112 headquartered companies, followed by Fort Lauderdale (31) and Seattle (26).

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 603 verified decision-maker contacts tracked across these 112 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 17, 2026.

Ready to reach these companies? Verified emails and direct dials for all 112 marine engineering consultants based in Houston, United States. Start with a free account, no credit card.

Download this list →

Related lists

Marine engineering consultants by geography

Browse the directory

Browse: Companies home · Marine engineering consultants in United States · All United States lists · All Marine engineering consultants lists · New lists

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.