Company lists · Data refreshed September 2026

Top 22 Marine resource consulting firms based in Seattle, United States

Name: Marine resource consulting firms based in Seattle, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 37 companies tracked

RevenueBase identified 37 marine resource consulting firms headquartered in Seattle, United States as of September 2026 and tracks 1,276 professional contacts across them, including 650 with verified work emails. Houston is the largest hub.

This list covers marine resource consulting firms headquartered in Seattle, 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, how directly it supports the match, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

37Companies

1,276Contacts tracked

650Verified emails

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The 22 largest marine resource consulting firms based in Seattle, United States

Ranked by team size

Top 22 of 37 marine resource consulting firms based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. Evidence rates how directly each company's own description names marine resource consulting firms: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Anchor QEAPartial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	501-1,000	479
	“Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water…” Source: company website · checked Sep 5, 2026
2	Global Diving & Salvage, INCPartial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	201-500	217
	“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: company website · checked Sep 5, 2026
3	Stabbert MaritimePartial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	201-500	119
	“Stabbert Maritime’s group of companies delivers a wide-range of innovative solutions and support services to our offshore, science, subsea energy, and ship repair clients across…” Source: company website · checked Sep 5, 2026
4	GlostenPartial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	51-200	104
	“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: company website · checked Sep 5, 2026
5	Elliott BAY Design GroupPartial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	51-200	80
	“Elliott Bay Design Group (EBDG) is a full-service, employee-owned naval architecture and marine engineering firm that supports owners, operators and shipyards.” Source: company website · checked Sep 5, 2026
6	Hart Crowser, A Division Of Haley & AldrichIndirect evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	51-200	49
	“Hart Crowser’s engineers and scientists have the up-to-date knowledge to support practical designs and recommendations.” Source: company website · checked Sep 5, 2026
7	S3 Maritime, LLCPartial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	11-50	25
	“Here at S3 Maritime we provide service to all types of yachts in all types of situations and environments.” Source: company website · checked Sep 5, 2026
8	Hockema GroupIndirect evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	11-50	14
	“Hockema Group, Inc.” Source: company website · checked Sep 5, 2026
9	First Watch Maritime, INCStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	10
	“First Watch Maritime is a comprehensive marine surveying, cargo surveying and marine consulting firm covering the North American Pacific Coast, Alaska, Hawaii and other locations…” Source: company website · checked Sep 5, 2026
10	Bauer Moynihan & Johnson LLPIndirect evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	10
	Source: company website · checked Sep 5, 2026
11	Global SeasPartial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	11-50	9
	“Global Seas charter marine vessels from 26’ to 231’, fully crewed, for short or long term missions, expeditions or oceanic operations.” Source: company website · checked Sep 5, 2026
12	Plauché & Carr LLPStrong evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	8
	“Plauché & Carr attorneys serve as advocates and counselors to our clients regarding legal and regulatory issues related to natural resource based activities, primarily in marine…” Source: company website · checked Sep 5, 2026
13	WassocIndirect evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	8
	“Since 1983, Williamson & Associates (Wassoc) has been on the cutting edge of subsea engineering.” Source: company website · checked Sep 5, 2026
14	Enviro Tech Diving INCIndirect evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	11-50	7
	“Enviro-Tech Diving, Inc.” Source: company website · checked Sep 5, 2026
15	Walters Northwest Claims Services, INCPartial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	7
	“Walters Northwest Claims Services, Inc.(WNW) is a full service, comprehensive, boutique, independent marine claims adjusting and investigating firm headquartered in the Seattle…” Source: company website · checked Sep 5, 2026
16	ExulansPartial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	6
	“Exulans provides a wide array of products and services to improve compliance with fisheries and marine conservation law.” Source: company website · checked Sep 5, 2026
17	International Maritime Group PllcPartial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	5
	“The International Maritime Group (IMG) is a law firm focused on servicing the maritime industries of the Pacific Northwest.” Source: company website · checked Sep 5, 2026
18	Marker Offshore LLCPartial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	4
	“Marker Offshore is a geospatial consulting firm dedicated to delivering the data you need with service you require and results you can trust.” Source: company website · checked Sep 5, 2026
19	Coastal Sensing & Survey, LLCIndirect evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	11-50	4
	“Coastal Sensing & Survey is an outcome-focused subsea consultancy.” Source: company website · checked Sep 5, 2026
20	Seattle Yacht MediaPartial evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	4
	“Seattle Yacht Media is the PNW's premier provider of top-quality marine-based media solutions.” Source: company website · checked Sep 5, 2026
21	Ocean Strategies, INCIndirect evidence	Seattle, WA, United StatesHQ checked Sep 5, 2026	1-10	3
	“From community waterfront to national arena, we navigate policy and public affairs challenges to support your goals.” Source: company website · checked Sep 5, 2026
22	VAS Consulting LLCPartial evidence	Seattle, United StatesHQ checked Sep 5, 2026	1-10	3
	“With over 16 years of experience in the maritime industry VAS is dedicated to servicing your industrial needs at an affordable price.” Source: company website · checked Sep 5, 2026

Showing 22 of 37 marine resource consulting firms based in Seattle, United States

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Marine resource consulting firms based in Seattle, United States at a glance

As of Sep 5, 2026

1-10Median size (employees)

HoustonLargest hub · 51 HQs

Contacts with mobile numbers

Sep 5, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 37 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 resource consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Seattle, United States whose own description of what they do matches “marine resource consulting firms”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among marine resource consulting firms, and records with no verified work email. Companies headquartered outside Seattle 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 an evidence 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, 650 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 5, 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 resource consulting firms by metro in the United States

Marine resource consulting firms in Houston51
Marine resource consulting firms in Seattle37
Marine resource consulting firms in Miami27
Marine resource consulting firms in Fort Lauderdale26

Frequently asked

How many marine resource consulting firms are there based in Seattle, United States?

RevenueBase identified 37 marine resource consulting firms headquartered in Seattle, 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?

Anchor QEA, headquartered in Seattle, tops this list with the largest team on record.

Which city has the most marine resource consulting firms?

Houston leads with 51 headquartered companies, followed by Seattle (37) and Miami (27).

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 650 verified decision-maker contacts tracked across these 37 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 5, 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 SmartSearch, 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.