Company lists · Data refreshed September 2026

Top 23 Marine resource consulting firms based in Seattle, United States

RevenueBase identified 38 marine resource consulting firms headquartered in Seattle, United States as of September 2026 and tracks 1,292 professional contacts across them, including 660 with verified work emails. Across the United States, Houston is the largest hub for this category (49 companies); Seattle follows with 38.

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, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 14, 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 14, 2026 86% judged on-target in blind review
38Companies
1,292Contacts tracked
660Verified emails
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The 23 largest marine resource consulting firms based in Seattle, United States

Ranked by team size
Top 23 of 38 marine resource consulting firms based in Seattle, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to marine resource consulting firms: 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
1Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 2026501-1,000479 contacts →

Partial evidence

“Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water…”

Source: RevenueBase Database · checked Sep 14, 2026
2Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 2026201-500217 contacts →

Partial 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 14, 2026
3Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 2026201-500119 contacts →

Partial evidence

“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: RevenueBase Database · checked Sep 14, 2026
4Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 202651-200104 contacts →

Partial 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 14, 2026
5Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 202651-20080 contacts →

Partial evidence

“Elliott Bay Design Group (EBDG) is a full-service, employee-owned naval architecture and marine engineering firm that supports owners, operators and shipyards.”

Source: RevenueBase Database · checked Sep 14, 2026
6Indirect evidenceSeattle, WA, United StatesHQ checked Sep 14, 202651-20049 contacts →

Indirect evidence

“Hart Crowser’s engineers and scientists have the up-to-date knowledge to support practical designs and recommendations.”

Source: RevenueBase Database · checked Sep 14, 2026
7Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 202611-5025 contacts →

Partial evidence

“Here at S3 Maritime we provide service to all types of yachts in all types of situations and environments.”

Source: RevenueBase Database · checked Sep 14, 2026
8Indirect evidenceSeattle, WA, United StatesHQ checked Sep 14, 202611-5016 contacts →

Indirect evidence

“At WSE, our focus is on service.”

Source: RevenueBase Database · checked Sep 14, 2026
9Indirect evidenceSeattle, WA, United StatesHQ checked Sep 14, 202611-5014 contacts →

Indirect evidence

“Hockema Group, Inc.”

Source: RevenueBase Database · checked Sep 14, 2026
10Strong evidenceSeattle, WA, United StatesHQ checked Sep 14, 20261-1010 contacts →

Strong evidence

“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: RevenueBase Database · checked Sep 14, 2026
11Indirect evidenceSeattle, WA, United StatesHQ checked Sep 14, 20261-1010 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 14, 2026
12Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 202611-509 contacts →

Partial evidence

“Global Seas charter marine vessels from 26’ to 231’, fully crewed, for short or long term missions, expeditions or oceanic operations.”

Source: RevenueBase Database · checked Sep 14, 2026
13Strong evidenceSeattle, WA, United StatesHQ checked Sep 14, 20261-108 contacts →

Strong evidence

“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: RevenueBase Database · checked Sep 14, 2026
14Indirect evidenceSeattle, WA, United StatesHQ checked Sep 14, 20261-108 contacts →

Indirect evidence

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

Source: RevenueBase Database · checked Sep 14, 2026
15Indirect evidenceSeattle, WA, United StatesHQ checked Sep 14, 202611-507 contacts →

Indirect evidence

“Enviro-Tech Diving, Inc.”

Source: RevenueBase Database · checked Sep 14, 2026
16Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 20261-107 contacts →

Partial evidence

“Walters Northwest Claims Services, Inc.(WNW) is a full service, comprehensive, boutique, independent marine claims adjusting and investigating firm headquartered in the Seattle…”

Source: RevenueBase Database · checked Sep 14, 2026
17Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 20261-106 contacts →

Partial evidence

“Exulans provides a wide array of products and services to improve compliance with fisheries and marine conservation law.”

Source: RevenueBase Database · checked Sep 14, 2026
18Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 20261-105 contacts →

Partial evidence

“The International Maritime Group (IMG) is a law firm focused on servicing the maritime industries of the Pacific Northwest.”

Source: RevenueBase Database · checked Sep 14, 2026
19Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 20261-104 contacts →

Partial evidence

“Marker Offshore is a geospatial consulting firm dedicated to delivering the data you need with service you require and results you can trust.”

Source: RevenueBase Database · checked Sep 14, 2026
20Indirect evidenceSeattle, WA, United StatesHQ checked Sep 14, 202611-504 contacts →

Indirect evidence

“Coastal Sensing & Survey is an outcome-focused subsea consultancy.”

Source: RevenueBase Database · checked Sep 14, 2026
21Partial evidenceSeattle, WA, United StatesHQ checked Sep 14, 20261-104 contacts →

Partial evidence

“Seattle Yacht Media is the PNW's premier provider of top-quality marine-based media solutions.”

Source: RevenueBase Database · checked Sep 14, 2026
22Indirect evidenceSeattle, WA, United StatesHQ checked Sep 14, 20261-103 contacts →

Indirect evidence

“From community waterfront to national arena, we navigate policy and public affairs challenges to support your goals.”

Source: RevenueBase Database · checked Sep 14, 2026
23Partial evidenceSeattle, United StatesHQ checked Sep 14, 20261-103 contacts →

Partial evidence

“With over 16 years of experience in the maritime industry VAS is dedicated to servicing your industrial needs at an affordable price.”

Source: RevenueBase Database · checked Sep 14, 2026

Showing 23 of 38 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 14, 2026
51.1%Verified-email coverage
34.0Average contacts per company
1-10Median size (employees)
Sep 14, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
8
51-200
6
201-500
2
501-1,000
1

Email recency for this list is measured across the whole United States list rather than for Seattle, so it is reported there. Company counts and contact totals on this page are exact for Seattle, over 38 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 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 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.
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 resource consulting firms), 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 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 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, 660 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 14, 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 marine resource consulting firms, 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 resource consulting firms are there based in Seattle, United States?

RevenueBase identified 38 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 in the United States has the most marine resource consulting firms?

Houston leads the United States with 49 headquartered companies, followed by Seattle (38) and Miami (28).

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 660 verified decision-maker contacts tracked across these 38 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 14, 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.