Company lists · Data refreshed September 2026

Top 25 Marine research organizations based in the United Kingdom

Name: Marine research organizations based in the United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 259 companies tracked

RevenueBase identified 259 marine research organizations headquartered in the United Kingdom as of September 2026 and tracks 5,740 professional contacts across them, including 1,994 with verified work emails. London is the largest hub.

This list covers marine research organizations 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 20, 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 20, 2026 86% judged on-target in blind review

259Companies

5,740Contacts tracked

1,994Verified emails

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The 25 largest marine research organizations based in the United Kingdom

Ranked by team size

Top 25 of 259 marine research organizations based in the United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to marine research organizations: 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	CEFAS	Partial evidence	Lowestoft, United KingdomHQ checked Sep 20, 2026	501-1,000	559 contacts →
	Partial evidence “Cefas (Centre for Environment, Fisheries and Aquaculture Science) is an internationally renowned aquatic scientific research and consultancy centre.” Source: RevenueBase Database · checked Sep 20, 2026
2	James Fisher And Sons PLC	Indirect evidence	Barrow-in-furness, United KingdomHQ checked Sep 20, 2026	1,001-5,000	403 contacts →
	Indirect evidence “Above, below and beyond the world’s oceans.” Source: RevenueBase Database · checked Sep 20, 2026
3	Briggs Marine	Partial evidence	Burntisland, United KingdomHQ checked Sep 20, 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 20, 2026
4	Blue Ventures	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	201-500	255 contacts →
	Indirect evidence “We believe the power to restore our oceans lives in the coastal communities bearing witness to the planetary crises.” Source: RevenueBase Database · checked Sep 20, 2026
5	Institute Of Marine Engineering, Science & Technology Imarest	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	n/a	165 contacts →
	Partial evidence “Our vision is a world where marine resources and activities are sustained, managed and developed for the benefit of humanity.” Source: RevenueBase Database · checked Sep 20, 2026
6	Subsea Craft Limited	Strong evidence	Portsmouth, United KingdomHQ checked Sep 20, 2026	51-200	159 contacts →
	Strong evidence “Based in Portsmouth, SSC’s mission is to provide maritime and amphibious forces with the operational advantage through the accelerated research, development and delivery of…” Source: RevenueBase Database · checked Sep 20, 2026
7	Marine Conservation Society	Partial evidence	Ross-on-wye, United KingdomHQ checked Sep 20, 2026	51-200	156 contacts →
	Partial evidence “The Marine Conservation Society is the UK's leading marine charity working towards a cleaner, better protected and healthier ocean, for everyone Today, our ocean is in poor health…” Source: RevenueBase Database · checked Sep 20, 2026
8	Blue Marine Foundation	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	88 contacts →
	Partial evidence “Known as Blue Marine, this UK registered charity was set up in 2010 by some of the team behind the award-winning documentary film ‘The End of the Line’.” Source: RevenueBase Database · checked Sep 20, 2026
9	Royal Institution Of Naval Architects	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	82 contacts →
	Partial evidence “Royal Institution of Naval Architects (RINA) is a global membership body for the maritime industry, covering everything from super yachts and green propulsion to warship…” Source: RevenueBase Database · checked Sep 20, 2026
10	Ocean Ecology LTD	Partial evidence	Gloucester, United KingdomHQ checked Sep 20, 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 20, 2026
11	Ship Safe Training Group Ltd. Sstg	Partial evidence	Rochester, United KingdomHQ checked Sep 20, 2026	11-50	70 contacts →
	Partial evidence “The SSTG is a company limited by guarantee, set up by a consortium of shipping companies to provide them with marine training services on a non-profit making basis.” Source: RevenueBase Database · checked Sep 20, 2026
12	Abpmer	Partial evidence	Southampton, United KingdomHQ checked Sep 20, 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 20, 2026
13	Manta Trust	Partial evidence	Dorchester, United KingdomHQ checked Sep 20, 2026	11-50	62 contacts →
	Partial evidence “The Manta Trust takes a multidisciplinary approach to the worldwide conservation of manta and mobula rays and their habitat through robust science and research, while raising…” Source: RevenueBase Database · checked Sep 20, 2026
14	Seiche	Partial evidence	Holsworthy, United KingdomHQ checked Sep 20, 2026	51-200	59 contacts →
	Partial evidence “Seiche provides marine technology and environmental service solutions for the offshore marine industries.” Source: RevenueBase Database · checked Sep 20, 2026
15	National Marine Aquarium	Partial evidence	Plymouth, United KingdomHQ checked Sep 20, 2026	51-200	53 contacts →
	Partial evidence “The National Marine Aquarium (NMA) is the UK’s largest aquarium, located in Britain’s Ocean City, Plymouth.” Source: RevenueBase Database · checked Sep 20, 2026
16	Benthic Solutions Limited	Partial evidence	Hoveton, United KingdomHQ checked Sep 20, 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 20, 2026
17	Women In Ocean Science	Indirect evidence	Bristol, United KingdomHQ checked Sep 20, 2026	n/a	45 contacts →
	Indirect evidence “A non-profit, female empowerment organisation in the ocean science & conservation space.” Source: RevenueBase Database · checked Sep 20, 2026
18	Project Seagrass	Partial evidence	Bridgend, United KingdomHQ checked Sep 20, 2026	11-50	33 contacts →
	Partial evidence “Established in 2013 by a group of seagrass scientists, Project Seagrass is a global facing marine conservation organisation securing a future for seagrass.” Source: RevenueBase Database · checked Sep 20, 2026
19	Oceanmind	Partial evidence	Didcot, United KingdomHQ checked Sep 20, 2026	11-50	26 contacts →
	Partial evidence “OceanMind is a UK-based non-profit organisation that powers marine enforcement and compliance to protect the ocean's ability to provide for human wellbeing.” Source: RevenueBase Database · checked Sep 20, 2026
20	Sams Enterprise	Partial evidence	Oban, United KingdomHQ checked Sep 20, 2026	51-200	23 contacts →
	Partial evidence “SAMS Enterprise provides specialist marine consultancy and services, under pinned by the world leading science of its parent organisation the Scottish Association for Marine…” Source: RevenueBase Database · checked Sep 20, 2026
21	Marinelife	Strong evidence	New Milton, United KingdomHQ checked Sep 20, 2026	1-10	22 contacts →
	Strong evidence “MARINElife is an exciting UK based charity established to co-ordinate and develop a growing portfolio of global cetacean & seabird research and monitoring projects.” Source: RevenueBase Database · checked Sep 20, 2026
22	TMC Marine	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	22 contacts →
	Partial evidence “TMC, a Bureau Veritas Group Company and leading international marine consultancy, has been providing advice and support to the marine and offshore energy industries since 1979.” Source: RevenueBase Database · checked Sep 20, 2026
23	Cornwall Marine Network	Partial evidence	Falmouth, United KingdomHQ checked Sep 20, 2026	11-50	20 contacts →
	Partial evidence “Cornwall Marine Network is a private not-for-profit company owned by local marine businesses in Cornwall & the Isles of Scilly.” Source: RevenueBase Database · checked Sep 20, 2026
24	IMPA	Partial evidence	Colchester, United KingdomHQ checked Sep 20, 2026	11-50	19 contacts →
	Partial evidence “IMPA is the leading association for marine purchasing and supply professionals.” Source: RevenueBase Database · checked Sep 20, 2026
25	Hebridean Whale And Dolphin Trust	Indirect evidence	Tobermory, United KingdomHQ checked Sep 20, 2026	1-10	19 contacts →
	Indirect evidence “We work directly with local communities to ensure whales, dolphins and porpoises are protected and valued throughout Scotland’s west coast.” Source: RevenueBase Database · checked Sep 20, 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 research organizations. 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 research organizations.
Partial evidence: Its own public description names part of marine research organizations, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name marine research organizations. 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 259 marine research organizations based in the United Kingdom

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Marine research organizations based in the United Kingdom at a glance

As of Sep 20, 2026

34.7%Verified-email coverage

22.2Average contacts per company

1-10Median size (employees)

17.8%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

153

11-50

51-200

201-500

501-1,000

1,001-5,000

5,001-10,000

Email recency for this list is measured worldwide rather than for United Kingdom, so it is reported there. Company counts and contact totals on this page are exact for United Kingdom, over 259 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 research organizations, 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 research organizations”. 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 research organizations), 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 research organizations, 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, 1,994 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 20, 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 research organizations by metro

Marine research organizations in London46

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 research organizations, 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 research organizations are there based in the United Kingdom?

RevenueBase identified 259 marine research organizations 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?

CEFAS, headquartered in Lowestoft, tops this list with the largest team on record.

Which city has the most marine research organizations?

London leads with 46 headquartered companies, followed by Southampton (14) and Plymouth (12).

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 1,994 verified decision-maker contacts tracked across these 259 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 20, 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.