Company lists · Data refreshed September 2026
Top 25 Marine resource consulting firms based in the United Kingdom
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, 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.
The 25 largest marine resource consulting firms based in the United Kingdom
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 804 | ||||
“The Energy and Marine Consultants - an Aqualis company.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 2 | 559 | ||||
“Cefas (Centre for Environment, Fisheries and Aquaculture Science) is an internationally renowned aquatic scientific research and consultancy centre.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 3 | Gardline LimitedPartial evidence | 545 | |||
“Gardline is a best-in-class provider of geophysical, geotechnical and environmental marine surveys.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 4 | 403 | ||||
“Above, below and beyond the world’s oceans.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 5 | 387 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 6 | LOCIndirect evidence | 206 | |||
“ONE PARTNER.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 7 | MDL Marinas LTDPartial evidence | 157 | |||
“The MDL team includes experienced and professionally qualified specialists in all facets of marina development and marina operations.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 8 | Thomson Environmental ConsultantsIndirect evidence | 133 | |||
“Thomson Environmental Consultants are experts in environmental compliance with offices in Guildford, Leeds, Cardiff, Birmingham and Manchester.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 9 | 128 | ||||
“Drewry is a leading international provider of research and consulting services to the maritime and shipping industry.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 10 | 118 | ||||
“Clyde Marine Recruitment is a leading provider of marine recruitment and bespoke crew management services across Europe and Asia Pacific.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 11 | 103 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 12 | Seamariner LimitedPartial evidence | 91 | |||
“Welcome to Seamariner – the UK’s Premier Marine Recruitment Specialists for marine companies worldwide.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 13 | Shearwater Marine ServicesPartial evidence | 87 | |||
“Founded in 1992, Shearwater Marine Services have since grown to become a highly respected topside and sub-surface marine engineering service provider.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 14 | Gobe Consultants LTDIndirect evidence | 84 | |||
“Providing high quality strategic and project specific planning and environmental advice to the offshore development industries, we, GoBe, are specialists in offshore renewables…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 15 | Waves Group LTDPartial evidence | 84 | |||
“Waves Group combines the expertise of Cwaves and Mwaves as leading, independent marine consultants to the shipping and offshore energy industries.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 16 | 80 | ||||
“Founded in 1903, Brookes Bell is a leading multi-disciplinary technical and scientific consultancy serving the marine and energy sectors.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 17 | 76 | ||||
“Ocean Ecology Limited is a leading marine environmental consultancy specialising in providing survey, technical, data and advisory services to organisations delivering and…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 18 | Malin GroupPartial evidence | 75 | |||
“We are committed to providing an exceptional end-to-end service within the marine sector.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 19 | 74 | ||||
“EGS International Ltd (EGSi) is part of a leading international group of companies specialising in marine surveys.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 20 | 71 | ||||
“EnviroCentre is a solutions orientated consultancy that has a proven track record in providing innovative, effective and valuable advice.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 21 | 69 | ||||
“ABPmer is a leading UK marine consultancy, creating sustainable solutions for clients in the marine environment.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 22 | VesselsvaluePartial evidence | 63 | |||
“VesselsValue is a leading provider of online valuations and market perspective for the maritime industry.” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 23 | 59 | ||||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 24 | SpinnakerIndirect evidence | 50 | |||
“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: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
| 25 | 49 | ||||
“Benthic Solutions Limited (BSL) is an independent marine environmental consultancy and survey company offering a broad range of capabilities in survey, analytical, interpretative…” Source: company website · checked Sep 5, 2026Thanks. The Data Team will review it. | |||||
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, 2026Companies by employee count
Verified emails by last verification
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 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.
- 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 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, 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
- Marine resource consulting firms in Southampton25
Frequently asked
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 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.
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