Company lists · Data refreshed September 2026

Top 25 Marine resource consulting firms based in the United Kingdom

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

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 590 companies tracked

RevenueBase identified 590 marine resource consulting firms headquartered in the United Kingdom as of September 2026 and tracks 10,805 professional contacts across them, including 3,430 with verified work emails and 629 with mobile numbers. London is the largest hub.

This list covers marine resource consulting firms headquartered in the United Kingdom, 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 5, 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 5, 2026 86% judged on-target in blind review

590Companies

10,805Contacts tracked

3,430Verified emails

629Mobile numbers

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The 25 largest marine resource consulting firms based in the United Kingdom

Ranked by team size

Top 25 of 590 marine resource consulting firms based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 5, 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	ABL	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	1,001-5,000	804 contacts →
	Partial evidence “The Energy and Marine Consultants - an Aqualis company.” Source: RevenueBase Database · checked Sep 5, 2026
2	CEFAS	Indirect evidence	Lowestoft, United KingdomHQ checked Sep 5, 2026	501-1,000	559 contacts →
	Indirect evidence “Cefas (Centre for Environment, Fisheries and Aquaculture Science) is an internationally renowned aquatic scientific research and consultancy centre.” Source: RevenueBase Database · checked Sep 5, 2026
3	Gardline Limited	Partial evidence	Great Yarmouth, United KingdomHQ checked Sep 5, 2026	501-1,000	545 contacts →
	Partial evidence “Gardline is a best-in-class provider of geophysical, geotechnical and environmental marine surveys.” Source: RevenueBase Database · checked Sep 5, 2026
4	James Fisher And Sons PLC	Indirect evidence	Barrow-in-furness, United KingdomHQ checked Sep 5, 2026	1,001-5,000	403 contacts →
	Indirect evidence “Above, below and beyond the world’s oceans.” Source: RevenueBase Database · checked Sep 5, 2026
5	Briggs Marine	Partial evidence	Burntisland, United KingdomHQ checked Sep 5, 2026	501-1,000	387 contacts →
	Partial evidence “Briggs Marine is a leading provider of marine and environmental services, specialising in port and marine operations, subsea and environmental support and vessel charter.” Source: RevenueBase Database · checked Sep 5, 2026
6	LOC	Indirect evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	206 contacts →
	Indirect evidence “ONE PARTNER.” Source: RevenueBase Database · checked Sep 5, 2026
7	MDL Marinas LTD	Partial evidence	Southampton, United KingdomHQ checked Sep 5, 2026	201-500	157 contacts →
	Partial evidence “The MDL team includes experienced and professionally qualified specialists in all facets of marina development and marina operations.” Source: RevenueBase Database · checked Sep 5, 2026
8	Thomson Environmental Consultants	Indirect evidence	Guildford, United KingdomHQ checked Sep 5, 2026	51-200	133 contacts →
	Indirect evidence “Thomson Environmental Consultants are experts in environmental compliance with offices in Guildford, Leeds, Cardiff, Birmingham and Manchester.” Source: RevenueBase Database · checked Sep 5, 2026
9	Drewry Shipping Consultants LTD	Strong evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	128 contacts →
	Strong evidence “Drewry is a leading international provider of research and consulting services to the maritime and shipping industry.” Source: RevenueBase Database · checked Sep 5, 2026
10	Clyde Marine Recruitment	Partial evidence	Glasgow, United KingdomHQ checked Sep 5, 2026	11-50	118 contacts →
	Partial evidence “Clyde Marine Recruitment is a leading provider of marine recruitment and bespoke crew management services across Europe and Asia Pacific.” Source: RevenueBase Database · checked Sep 5, 2026
11	Mrag LTD	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	11-50	103 contacts →
	Partial evidence “Established in the UK in 1986, MRAG Ltd is a consultancy company dedicated to promoting sustainable use of aquatic resources through sound integrated management policies and…” Source: RevenueBase Database · checked Sep 5, 2026
12	Seamariner Limited	Partial evidence	Southampton, United KingdomHQ checked Sep 5, 2026	201-500	91 contacts →
	Partial evidence “Welcome to Seamariner – the UK’s Premier Marine Recruitment Specialists for marine companies worldwide.” Source: RevenueBase Database · checked Sep 5, 2026
13	Shearwater Marine Services	Partial evidence	Sandbank, United KingdomHQ checked Sep 5, 2026	51-200	87 contacts →
	Partial evidence “Founded in 1992, Shearwater Marine Services have since grown to become a highly respected topside and sub-surface marine engineering service provider.” Source: RevenueBase Database · checked Sep 5, 2026
14	Gobe Consultants LTD	Indirect evidence	Buckfastleigh, United KingdomHQ checked Sep 5, 2026	11-50	84 contacts →
	Indirect evidence “Providing high quality strategic and project specific planning and environmental advice to the offshore development industries, we, GoBe, are specialists in offshore renewables…” Source: RevenueBase Database · checked Sep 5, 2026
15	Waves Group LTD	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	51-200	84 contacts →
	Partial evidence “Waves Group combines the expertise of Cwaves and Mwaves as leading, independent marine consultants to the shipping and offshore energy industries.” Source: RevenueBase Database · checked Sep 5, 2026
16	Brookes Bell	Partial evidence	Liverpool, United KingdomHQ checked Sep 5, 2026	51-200	80 contacts →
	Partial evidence “Founded in 1903, Brookes Bell is a leading multi-disciplinary technical and scientific consultancy serving the marine and energy sectors.” Source: RevenueBase Database · checked Sep 5, 2026
17	Ocean Ecology LTD	Partial evidence	Gloucester, United KingdomHQ checked Sep 5, 2026	51-200	76 contacts →
	Partial evidence “Ocean Ecology Limited is a leading marine environmental consultancy specialising in providing survey, technical, data and advisory services to organisations delivering and…” Source: RevenueBase Database · checked Sep 5, 2026
18	Malin Group	Partial evidence	Glasgow, United KingdomHQ checked Sep 5, 2026	51-200	75 contacts →
	Partial evidence “We are committed to providing an exceptional end-to-end service within the marine sector.” Source: RevenueBase Database · checked Sep 5, 2026
19	EGS International	Partial evidence	Bordon, United KingdomHQ checked Sep 5, 2026	51-200	74 contacts →
	Partial evidence “EGS International Ltd (EGSi) is part of a leading international group of companies specialising in marine surveys.” Source: RevenueBase Database · checked Sep 5, 2026
20	Envirocentre	Indirect evidence	Glasgow, United KingdomHQ checked Sep 5, 2026	51-200	71 contacts →
	Indirect evidence “EnviroCentre is a solutions orientated consultancy that has a proven track record in providing innovative, effective and valuable advice.” Source: RevenueBase Database · checked Sep 5, 2026
21	Abpmer	Partial evidence	Southampton, United KingdomHQ checked Sep 5, 2026	51-200	69 contacts →
	Partial evidence “ABPmer is a leading UK marine consultancy, creating sustainable solutions for clients in the marine environment.” Source: RevenueBase Database · checked Sep 5, 2026
22	Vesselsvalue	Partial evidence	London, United KingdomHQ checked Sep 5, 2026	201-500	63 contacts →
	Partial evidence “VesselsValue is a leading provider of online valuations and market perspective for the maritime industry.” Source: RevenueBase Database · checked Sep 5, 2026
23	BAR Technologies	Partial evidence	Portsmouth, United KingdomHQ checked Sep 5, 2026	11-50	59 contacts →
	Partial evidence “Originally formed to exploit the wealth of design knowledge, technical skills and resources built up through Ben Ainslie Racing (BAR) involvement in the America’s Cup, BAR…” Source: RevenueBase Database · checked Sep 5, 2026
24	Spinnaker	Indirect evidence	Leigh-on-sea, United KingdomHQ checked Sep 5, 2026	11-50	50 contacts →
	Indirect evidence “Whether it’s finding the next step in your career, building your leadership skills, helping you grow your team with the best talent who’ll fit, searching for your next chief…” Source: RevenueBase Database · checked Sep 5, 2026
25	Benthic Solutions Limited	Partial evidence	Hoveton, United KingdomHQ checked Sep 5, 2026	11-50	49 contacts →
	Partial evidence “Benthic Solutions Limited (BSL) is an independent marine environmental consultancy and survey company offering a broad range of capabilities in survey, analytical, interpretative…” Source: RevenueBase Database · checked Sep 5, 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 resource consulting firms. 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 resource consulting firms.
Partial evidence: Its own public description names part of marine resource consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine resource consulting firms. 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 590 marine resource consulting firms based in the United Kingdom

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Marine resource consulting firms based in the United Kingdom at a glance

As of Sep 5, 2026

31.7%Verified-email coverage

5.8%Mobile-number coverage

18.3Average contacts per company

1-10Median size (employees)

16.4%Largest-city concentration · London

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

397

11-50

128

51-200

201-500

501-1,000

1,001-5,000

Freshness & accuracy

How recently the business emails on this list were verified

Email last verified

3,2290–30

18831–60

161–90

390–180

9180+

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 the United Kingdom 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 United Kingdom 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, 3,430 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

Marine resource consulting firms in London97

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 the United Kingdom?

RevenueBase identified 590 marine resource consulting firms headquartered in the United Kingdom 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?

ABL, headquartered in London, tops this list with the largest team on record.

Which city has the most marine resource consulting firms?

London leads with 97 headquartered companies, followed by Southampton (25) and Aberdeen (16).

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 3,430 verified decision-maker contacts tracked across these 590 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 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.