Company lists · Data refreshed September 2026

Top 25 Offshore wind consulting firms worldwide

Name: Offshore wind consulting firms worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 29, 2026 9,674 companies tracked

RevenueBase identified 9,674 offshore wind consulting firms worldwide as of September 2026 and tracks 356,331 professional contacts across them, including 101,722 with verified work emails. The United Kingdom is the largest market and London the largest hub.

This list covers offshore wind consulting firms worldwide, 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 29, 2026. Country and city lists for offshore wind consulting firms follow the table.

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 RevenueBase Smart Search rating on every row Refreshed Sep 29, 2026 86% judged on-target in blind review

9,674Companies

356,331Contacts tracked

101,722Verified emails

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The 25 largest offshore wind consulting firms worldwide

Ranked by team size

Top 25 of 9,674 offshore wind consulting firms worldwide, ranked by team size, largest first. Data refreshed Sep 29, 2026. RevenueBase Smart Search rates how each company's information relates to offshore wind 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	Worley	Indirect evidence	Sydney, AustraliaHQ checked Sep 29, 2026	10001+	34,763 contacts →
	Indirect evidence “Worley is a global professional services company of energy, chemicals and resources experts headquartered in Australia.” Source: RevenueBase Database · checked Sep 29, 2026
2	Saipem	Partial evidence	Milan, ItalyHQ checked Sep 29, 2026	10001+	34,095 contacts →
	Partial evidence “Saipem is a global leader in the engineering and construction of major projects for the energy and infrastructure sectors, both offshore and onshore.” Source: RevenueBase Database · checked Sep 29, 2026
3	Atkinsréalis	Indirect evidence	Montreal, QC, CanadaHQ checked Sep 29, 2026	10001+	22,733 contacts →
	Indirect evidence “We are a world-class engineering services and nuclear organization.” Source: RevenueBase Database · checked Sep 29, 2026
4	Technip Former Company	Indirect evidence	United KingdomHQ checked Sep 29, 2026	10001+	11,255 contacts →
	Indirect evidence “Technip is a former company that was separated into two independent companies: TechnipFMC and Technip Energies, which now operate with no capital ties.” Source: RevenueBase Database · checked Sep 29, 2026
5	Atkins	Indirect evidence	Epsom, United KingdomHQ checked Sep 29, 2026	10001+	9,297 contacts →
	Indirect evidence “Atkins is now AtkinsRéalis.” Source: RevenueBase Database · checked Sep 29, 2026
6	Ørsted	Strong evidence	Fredericia, United StatesHQ checked Sep 29, 2026	5,001-10,000	7,538 contacts →
	Strong evidence “Ørsted is the global leader in offshore wind power and is one of the largest renewable energy companies in the world.” Source: RevenueBase Database · checked Sep 29, 2026
7	Lamprell	Strong evidence	Sharjah, United Arab EmiratesHQ checked Sep 29, 2026	5,001-10,000	6,080 contacts →
	Strong evidence “With 50 years of experience, Lamprell is a key player in the global offshore wind and oil & gas markets, delivering high-quality, complex energy infrastructure projects.” Source: RevenueBase Database · checked Sep 29, 2026
8	JAN DE NUL Group	Indirect evidence	Capellen, LuxembourgHQ checked Sep 29, 2026	5,001-10,000	5,424 contacts →
	Indirect evidence “We are World Builders shaping water, land and energy.” Source: RevenueBase Database · checked Sep 29, 2026
9	Seatrium	Partial evidence	United StatesHQ checked Sep 29, 2026	10001+	4,522 contacts →
	Partial evidence “A Premier Global Player with Deep Engineering Expertise in the offshore, marine and energy industries Engineering our Future Together.” Source: RevenueBase Database · checked Sep 29, 2026
10	Deme Group	Partial evidence	Beveren-kruibeke-zwijndrecht, BelgiumHQ checked Sep 29, 2026	5,001-10,000	4,395 contacts →
	Partial evidence “DEME (Euronext Brussels: DEME) is a leading contractor in the fields of offshore energy, dredging and marine infrastructure, and environmental remediation.” Source: RevenueBase Database · checked Sep 29, 2026
11	Sargent & Lundy	Indirect evidence	Chicago, WY, United StatesHQ checked Sep 29, 2026	1,001-5,000	4,156 contacts →
	Indirect evidence “Sargent & Lundy is one of the world’s longest-standing full-service architect engineering firms.” Source: RevenueBase Database · checked Sep 29, 2026
12	Ortec Group	Indirect evidence	Aix-en-provence, FranceHQ checked Sep 29, 2026	10001+	3,436 contacts →
	Indirect evidence “En conjuguant depuis sa création audace et rigueur, le groupe Ortec est devenu aujourd’hui un des leaders des services à l’industrie, l’énergie et l’environnement.” Source: RevenueBase Database · checked Sep 29, 2026
13	Gran Services S.A	Indirect evidence	Macaé, BrazilHQ checked Sep 29, 2026	1,001-5,000	2,752 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 29, 2026
14	FTI	Indirect evidence	Menasha, WI, United StatesHQ checked Sep 29, 2026	1,001-5,000	2,741 contacts →
	Indirect evidence “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Source: RevenueBase Database · checked Sep 29, 2026
15	Heerema Marine Contractors	Partial evidence	Leiden, NetherlandsHQ checked Sep 29, 2026	1,001-5,000	2,643 contacts →
	Partial evidence “Heerema Marine Contractors is a world-leading marine contractor in the international offshore energy industry.” Source: RevenueBase Database · checked Sep 29, 2026
16	Semco Maritime	Indirect evidence	Esbjerg, DenmarkHQ checked Sep 29, 2026	1,001-5,000	1,947 contacts →
	Indirect evidence “To fulfil the vision of a fossil-free future, we need conventional and renewable energy sources to coexist effectively until the day when renewables can fully keep the world…” Source: RevenueBase Database · checked Sep 29, 2026
17	ZMI Holdings	Partial evidence	Abu Dhabi, United Arab EmiratesHQ checked Sep 29, 2026	1,001-5,000	1,917 contacts →
	Partial evidence “ZMI Holdings an ADNOC L&S company THE NEW WAVE Transforming the Offshore Energy Industry An integrated service provider offering unparalleled commitment.” Source: RevenueBase Database · checked Sep 29, 2026
18	Bechtel Power	Indirect evidence	n/a	10001+	1,768 contacts →
	Indirect evidence “Visit the Bechtel Corporation company page Bechtel is one of the most respected global engineering, construction, and project management companies.” Source: RevenueBase Database · checked Sep 29, 2026
19	Vulcain Engineering Group	Partial evidence	Neuilly-sur-seine, FranceHQ checked Sep 29, 2026	5,001-10,000	1,496 contacts →
	Partial evidence “Vulcain Engineering Group is a multi-specialist engineering and consulting group serving industrial companies across the globe, focused on critical sectors: energy, health…” Source: RevenueBase Database · checked Sep 29, 2026
20	Global Wind Service	Strong evidence	Fredericia, DenmarkHQ checked Sep 29, 2026	1,001-5,000	1,438 contacts →
	Strong evidence “Global Wind Service (GWS) is one of the largest companies in Europe offering onshore and offshore installation and servicing of wind turbines around the world.” Source: RevenueBase Database · checked Sep 29, 2026
21	KK Wind Solutions	Partial evidence	Ikast, DenmarkHQ checked Sep 29, 2026	1,001-5,000	1,423 contacts →
	Partial evidence “KK Wind Solutions is a dedicated greentech company with more than 35 years of experience in electrical systems for wind turbines.” Source: RevenueBase Database · checked Sep 29, 2026
22	Deepocean	Indirect evidence	Oslo, NorwayHQ checked Sep 29, 2026	1,001-5,000	1,375 contacts →
	Indirect evidence “DeepOcean is a technology-driven, independent solution provider in the ocean space.” Source: RevenueBase Database · checked Sep 29, 2026
23	Ulteig	Indirect evidence	Fargo, ND, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,362 contacts →
	Indirect evidence “Ulteig delivers comprehensive design engineering, program management and technical and field services that strengthen infrastructure vital to everyday life.” Source: RevenueBase Database · checked Sep 29, 2026
24	Partner Engineering & Science, INC	Indirect evidence	Torrance, CA, United StatesHQ checked Sep 29, 2026	1,001-5,000	1,358 contacts →
	Indirect evidence “Partner Assessment Corp.” Source: RevenueBase Database · checked Sep 29, 2026
25	Dragados Offshore	Partial evidence	11510 Puerto Real, SpainHQ checked Sep 29, 2026	1,001-5,000	1,348 contacts →
	Partial evidence “Founded in 1972, Dragados Offshore S.A.” Source: RevenueBase Database · checked Sep 29, 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 wind 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 offshore wind consulting firms.
Partial evidence: Its own public description names part of offshore wind consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name offshore wind 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 9,674 offshore wind consulting firms worldwide

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Offshore wind consulting firms worldwide at a glance

As of Sep 29, 2026

28.5%Verified-email coverage

36.8Average contacts per company

1-10Median size (employees)

2.0%Largest-city concentration · London

Sep 29, 2026Page data refreshed

Companies by employee count

1-10

5,134

11-50

2,915

51-200

1,058

201-500

288

501-1,000

103

1,001-5,000

105

5,001-10,000

10001+

Email recency is reported on each country list linked below.

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 wind 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.
Coverage: Every country. Country and city lists for offshore wind consulting firms are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “offshore wind 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 offshore wind 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 offshore wind consulting firms, and records with no verified work email.
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, 101,722 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 29, 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 wind consulting firms by location

56 lists · largest first

Every Offshore wind consulting firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Cities

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 wind 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 offshore wind consulting firms are there worldwide?

RevenueBase identified 9,674 offshore wind consulting firms worldwide 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?

Worley, headquartered in Sydney, tops this list with the largest team on record.

Which country has the most offshore wind consulting firms?

The United Kingdom leads with 1,003 companies, followed by the United States (862) and Germany (546). Every offshore wind consulting firms list by country and city is linked on this page.

Which city has the most offshore wind consulting firms?

London leads with 191 headquartered companies, followed by Madrid (95) and Houston (86).

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 101,722 verified decision-maker contacts tracked across these 9,674 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 29, 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.