Company lists · Data refreshed September 2026

Top 25 Offshore environmental consulting based in London, United Kingdom

Name: Offshore environmental consulting based in London, United Kingdom
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 20, 2026 126 companies tracked

RevenueBase identified 126 offshore environmental consulting headquartered in London, United Kingdom as of September 2026 and tracks 5,273 professional contacts across them, including 1,589 with verified work emails. London is the largest hub.

This list covers offshore environmental consulting headquartered in London, 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

126Companies

5,273Contacts tracked

1,589Verified emails

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The 25 largest offshore environmental consulting based in London, United Kingdom

Ranked by team size

Top 25 of 126 offshore environmental consulting based in London, United Kingdom, ranked by team size, largest first. Data refreshed Sep 20, 2026. RevenueBase Smart Search rates how each company's information relates to offshore environmental consulting: 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	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1,001-5,000	804 contacts →
	Indirect evidence “The Energy and Marine Consultants - an Aqualis company.” Source: RevenueBase Database · checked Sep 20, 2026
2	Ricardo PLC	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1,001-5,000	670 contacts →
	Indirect evidence “Click the 'Follow' button and explore careers at Ricardo on our 'Jobs' and 'Life' tabs and at careers.ricardo.com.” Source: RevenueBase Database · checked Sep 20, 2026
3	The Erith Group	Strong evidence	London, United KingdomHQ checked Sep 20, 2026	501-1,000	217 contacts →
	Strong evidence “Supported by a network of specialist consulting engineers, environmentalists and our own collective experience, our philosophy is simple: to provide a qualitative economic and…” Source: RevenueBase Database · checked Sep 20, 2026
4	LOC	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	201-500	206 contacts →
	Indirect evidence “ONE PARTNER.” Source: RevenueBase Database · checked Sep 20, 2026
5	OWC	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	185 contacts →
	Indirect evidence “The Renewable Energy Consultants.” Source: RevenueBase Database · checked Sep 20, 2026
6	JURU	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	176 contacts →
	Partial evidence “Founded in 2015, Juru is an international engineering and consultancy firm with a mission to solve engineering and environmental problems.” Source: RevenueBase Database · checked Sep 20, 2026
7	Wood Thilsted	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	175 contacts →
	Partial evidence “Wood Thilsted is a world-leading renewable energy engineering consultancy experienced and specialised in offshore wind.” Source: RevenueBase Database · checked Sep 20, 2026
8	Longitude Engineering	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	138 contacts →
	Indirect evidence “The Engineering Consultants.” Source: RevenueBase Database · checked Sep 20, 2026
9	CTS Offshore & Marine	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	51-200	106 contacts →
	Partial evidence “CTS Offshore & Marine Ltd is an independent provider of engineering services tailored for energy and material markets.” Source: RevenueBase Database · checked Sep 20, 2026
10	Mrag LTD	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	103 contacts →
	Indirect 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 20, 2026
11	Precise Consultants	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	40 contacts →
	Partial evidence “Working offshore is unlike any other job; it takes a certain kind of person to excel in this complex and highly specialised world.” Source: RevenueBase Database · checked Sep 20, 2026
12	Bpp-Tech Cables Renewables	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	35 contacts →
	Indirect evidence “BPP-Tech \| Cables \| Renewables provides engineering services to the energy, maritime and defence sectors.” Source: RevenueBase Database · checked Sep 20, 2026
13	Indepth International	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	30 contacts →
	Partial evidence “Our global organic talent allows us to deliver specialized knowledge and solutions for offshore operations to our clients around the world.” Source: RevenueBase Database · checked Sep 20, 2026
14	Solis Marine	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	29 contacts →
	Indirect evidence “Solis Marine was established in 2012 to provide independent expert technical services to the shipping and wider maritime industries.” Source: RevenueBase Database · checked Sep 20, 2026
15	Geowynd	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	28 contacts →
	Indirect evidence “Data-driven geosolutions to ensure ground risks are mitigated and design opportunities are realised.” Source: RevenueBase Database · checked Sep 20, 2026
16	Logika Consultants LTD Part Of Logika Group	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	25 contacts →
	Partial evidence “At Logika Consultants Ltd, we believe that our future relies on environmental consultancy that supports progressive and sustainable development, and a healthier world.” Source: RevenueBase Database · checked Sep 20, 2026
17	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
18	Aval Consulting Group	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	13 contacts →
	Indirect evidence “Key Services: Ecology, Air Quality, Flood Risk and Drainage, Transport Planning and Highways, Contaminated Land, Odour, Waste Management, Dust, Lighting Strategy, Daylight and…” Source: RevenueBase Database · checked Sep 20, 2026
19	Global Environmental	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	11 contacts →
	Partial evidence “Global Environmental is an environmental consultancy practice which offers reliable and responsive planning, project management, surveys, analysis and tailored training packages.” Source: RevenueBase Database · checked Sep 20, 2026
20	ACP Environmental Consultants	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	10 contacts →
	Partial evidence “ACP Environmental Consultants provides a wide range of expert environmental services across Greater London, surrounding counties, and up to the Midlands.” Source: RevenueBase Database · checked Sep 20, 2026
21	Ergo Strategy Group	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “Ergo Strategy Group is a global consulting firm that designs and delivers solutions at the intersection of natural resources and economic development.” Source: RevenueBase Database · checked Sep 20, 2026
22	A2 Maritime	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	8 contacts →
	Indirect evidence “We will not over-promise or under-deliver.” Source: RevenueBase Database · checked Sep 20, 2026
23	CSO Shipbrokers	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “Part of the CSO Marine Group, CSO Shipbrokers is a ship brokerage and marine consultancy, focused on providing solutions to the Offshore Renewables, Transport & Installation and…” Source: RevenueBase Database · checked Sep 20, 2026
24	HIA Energy	Partial evidence	London, United KingdomHQ checked Sep 20, 2026	11-50	8 contacts →
	Partial evidence “HIA Energy delivers premium offshore survey solutions, project delivery, and specialist personnel to the global energy and marine sectors.” Source: RevenueBase Database · checked Sep 20, 2026
25	Iken Associates	Indirect evidence	London, United KingdomHQ checked Sep 20, 2026	1-10	7 contacts →
	Indirect evidence “Since 2001 we've been delivering better climate, health, nature and sustainability outcomes for the public, private and not-for-profit sectors.” 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: offshore environmental consulting. 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 offshore environmental consulting.
Partial evidence: Its own public description names part of offshore environmental consulting, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore environmental consulting. 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 126 offshore environmental consulting based in London, United Kingdom

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Offshore environmental consulting based in London, United Kingdom at a glance

As of Sep 20, 2026

30.1%Verified-email coverage

41.8Average contacts per company

1-10Median size (employees)

100.0%Largest-city concentration · London

Sep 20, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

Email recency for this list is measured across the whole United Kingdom list rather than for London, so it is reported there. Company counts and contact totals on this page are exact for London, over 126 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 offshore environmental consulting, 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 London, United Kingdom whose own description of what they do matches “offshore environmental consulting”. 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 offshore environmental consulting), 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 offshore environmental consulting, and records with no verified work email. Companies headquartered outside London 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, 1,589 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.

Offshore environmental consulting by metro in the United Kingdom

Offshore environmental consulting in London126
Offshore environmental consulting in Aberdeen65
Offshore environmental consulting in Edinburgh25

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 offshore environmental consulting, 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 offshore environmental consulting are there based in London, United Kingdom?

RevenueBase identified 126 offshore environmental consulting headquartered in London, 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 offshore environmental consulting?

London leads with 126 headquartered companies, followed by Aberdeen (65) and Edinburgh (25).

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 1,589 verified decision-maker contacts tracked across these 126 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.