Company lists · Data refreshed September 2026

Top 25 Marine energy consultants based in the United States

Name: Marine energy consultants based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 397 companies tracked

RevenueBase identified 397 marine energy consultants headquartered in the United States as of September 2026 and tracks 3,794 professional contacts across them, including 1,160 with verified work emails. Houston is the largest hub.

This list covers marine energy consultants 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 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

397Companies

3,794Contacts tracked

1,160Verified emails

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The 25 largest marine energy consultants based in the United States

Ranked by team size

Top 25 of 397 marine energy consultants based in the 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 energy 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	Merjent	Partial evidence	Minneapolis, MN, United StatesHQ checked Sep 17, 2026	201-500	264 contacts →
	Partial evidence “Merjent is an environmental, restoration, and engineering consulting firm with a long history serving the energy industry.” Source: RevenueBase Database · checked Sep 17, 2026
2	Seatrium Amfels, INC	Strong evidence	Brownsville, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	229 contacts →
	Strong evidence “Seatrium AmFELS is an industry pioneer committed to sustainability by providing cleaner offshore & marine solutions, offshore renewables, and new energy, generating long-term…” Source: RevenueBase Database · checked Sep 17, 2026
3	Zentech Incorporated	Indirect evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	51-200	181 contacts →
	Indirect 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
4	A.I.S. INC	Indirect evidence	North Dartmouth, MA, United StatesHQ checked Sep 17, 2026	201-500	173 contacts →
	Indirect evidence “A.I.S, Inc (AIS) supports the stewardship of our nation's ocean resources and their habitats.” Source: RevenueBase Database · checked Sep 17, 2026
5	Tdi-Brooks	Indirect evidence	College Station, TX, United StatesHQ checked Sep 17, 2026	51-200	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 17, 2026
6	Glosten	Strong evidence	Seattle, WA, United StatesHQ checked Sep 17, 2026	51-200	104 contacts →
	Strong evidence “Glosten is a full-service naval architecture and marine engineering consultancy with over 65 years of experience successfully taking on one-of-a-kind marine projects.” Source: RevenueBase Database · checked Sep 17, 2026
7	Principle Power	Indirect evidence	Emeryville, CA, United StatesHQ checked Sep 17, 2026	51-200	95 contacts →
	Indirect evidence “Principle Power is a global leader in floating wind technology, providing full lifecycle engineering services that deliver reliable, de-risked, and bankable solutions.” Source: RevenueBase Database · checked Sep 17, 2026
8	Cummins Cederberg	Partial evidence	Coral Gables, FL, United StatesHQ checked Sep 17, 2026	51-200	82 contacts →
	Partial evidence “Cummins Cederberg is a leader in coastal and marine engineering, delivering solutions for some of the most complex and high-impact waterfront projects.” Source: RevenueBase Database · checked Sep 17, 2026
9	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
10	Capital Ship Solutions - CSS	Partial evidence	Miami, FL, United StatesHQ checked Sep 17, 2026	51-200	64 contacts →
	Partial evidence “Capital Ship Solutions provides expert Technical, Engineering and Management Consultancy for diverse stakeholders in the Shipping and Offshore sectors.” Source: RevenueBase Database · checked Sep 17, 2026
11	Cardinal Engineering LLC	Partial evidence	Annapolis, MD, United StatesHQ checked Sep 17, 2026	51-200	59 contacts →
	Partial evidence “Cardinal Engineering provides world-class marine engineering services to the US Navy, industry partners, and other US government agencies.” Source: RevenueBase Database · checked Sep 17, 2026
12	ORPC	Partial evidence	Portland, ME, United StatesHQ checked Sep 17, 2026	11-50	57 contacts →
	Partial evidence “Proven and reliable underwater power systems that generate energy from free-flowing tides and rivers, ORPC improves people’s lives and their environment through sustainable energy…” Source: RevenueBase Database · checked Sep 17, 2026
13	Luminate	Partial evidence	Denver, CO, United StatesHQ checked Sep 17, 2026	51-200	51 contacts →
	Partial evidence “Formed in 2006 by long time power project finance veterans, Luminate is a technically based management consultancy providing engineering, commercial and environmental services and…” Source: RevenueBase Database · checked Sep 17, 2026
14	Ecological Associates INC	Indirect evidence	Jensen Beach, FL, United StatesHQ checked Sep 17, 2026	11-50	47 contacts →
	Indirect evidence “Ecological Associates, Inc.(EAI) is a multi-disciplinary environmental consulting firm headquartered in Jensen Beach, Florida.” Source: RevenueBase Database · checked Sep 17, 2026
15	Makai Ocean Engineering, INC	Indirect evidence	Waimanalo, HI, United StatesHQ checked Sep 17, 2026	11-50	46 contacts →
	Indirect evidence “Makai Ocean Engineering was founded in 1973 as a diversified ocean engineering company focused on providing design engineering and development services to a broad range of…” Source: RevenueBase Database · checked Sep 17, 2026
16	Ocergy	Partial evidence	Oakland, CA, United StatesHQ checked Sep 17, 2026	11-50	41 contacts →
	Partial evidence “Ocergy is an innovative company focusing on the development of complex ocean systems solving energy and environmental challenges in a sustainable manner.” Source: RevenueBase Database · checked Sep 17, 2026
17	Marine Acoustics, INC	Indirect evidence	Middletown, RI, United StatesHQ checked Sep 17, 2026	11-50	40 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
18	Pcci, INC	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 17, 2026	11-50	38 contacts →
	Indirect evidence “For over thirty+ years, PCCI, Inc.” Source: RevenueBase Database · checked Sep 17, 2026
19	Oars Group	Strong evidence	Houston, TX, United StatesHQ checked Sep 17, 2026	11-50	37 contacts →
	Strong 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
20	Remsa, INC	Indirect evidence	Hampton, VA, United StatesHQ checked Sep 17, 2026	11-50	35 contacts →
	Indirect evidence “REMSA is a diversified and innovative professional services and environmental consulting firm comprised of three interrelated business units.” Source: RevenueBase Database · checked Sep 17, 2026
21	Ocean Surveys, INC	Indirect evidence	Old Saybrook, CT, United StatesHQ checked Sep 17, 2026	11-50	34 contacts →
	Indirect 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 17, 2026
22	Azura Consulting LLC	Indirect evidence	Garland, TX, United StatesHQ checked Sep 17, 2026	n/a	34 contacts →
	Indirect evidence “Azura Consulting LLC offers a suite of environmental consulting services focused on the conservation and management of natural resources.” Source: RevenueBase Database · checked Sep 17, 2026
23	Arcvera Renewables, A Bureau Veritas Company	Strong evidence	Golden, CO, United StatesHQ checked Sep 17, 2026	11-50	33 contacts →
	Strong evidence “ArcVera Renewables, a Bureau Veritas company, is a leading consultancy firm providing finance-grade commercial and technical services for wind, solar, energy storage and hybrid…” Source: RevenueBase Database · checked Sep 17, 2026
24	Shipwright LLC	Strong evidence	Fort Lauderdale, FL, United StatesHQ checked Sep 17, 2026	11-50	29 contacts →
	Strong evidence “Shipwright is a global maritime technical consultancy and the world's maritime leader in client-focused solutions.” Source: RevenueBase Database · checked Sep 17, 2026
25	Krishnan & Associates, INC	Partial evidence	Stamford, CT, United StatesHQ checked Sep 17, 2026	11-50	26 contacts →
	Partial evidence “Krishnan & Associates (K&A) is a full service power and energy industry consulting firm providing specialized marketing, market analytics, mergers & acquisitions and recruitment…” 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 energy 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 energy consultants.
Partial evidence: Its own public description names part of marine energy consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine energy 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 397 marine energy consultants based in the United States

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Marine energy consultants based in the United States at a glance

As of Sep 17, 2026

30.6%Verified-email coverage

9.6Average contacts per company

1-10Median size (employees)

9.8%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

274

11-50

51-200

201-500

1,001-5,000

5,001-10,000

10001+

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 397 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 energy 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 the United States whose own description of what they do matches “marine energy 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 energy 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 energy consultants, 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, 1,160 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 energy consultants by metro

Marine energy consultants in Houston39

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 energy 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 energy consultants are there based in the United States?

RevenueBase identified 397 marine energy consultants 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?

Merjent, headquartered in Minneapolis, tops this list with the largest team on record.

Which city has the most marine energy consultants?

Houston leads with 39 headquartered companies, followed by Denver (9) and Portland (8).

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 1,160 verified decision-maker contacts tracked across these 397 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.

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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.