Offshore Wind Farm Cable Installation Contractors and Cable Manufacturers: 30 Companies with Role, Cable Types, Projects and Vessels (Partial List, Sources Linked)
30 companies that manufacture, install, lay, bury or protect offshore wind export and array cables, one row per company (15 cable manufacturers, 7 cable installers or EPCI cable contractors, 1 trenching contractor, 2 cable repair or termination contractors and 5 cable protection suppliers; grouping by main stated role). Each row gives the role, cable types and up to three projects exactly as the source states them (25 rows name at least one project), cable-lay or installation vessel names where a source names them (7 rows), and the source URLs with the exact wording relied on. Built from SEC filings (Vineyard Wind 1 and CVOW contract schedules, supplier tables), UK Government and CMA documents, EU TED award notices, NREL/DOE, Chinese statutory annual reports and wind farm or company websites whose terms allow reuse, read on 2026-10-12. Not a complete list: several large installers (Seaway7, Boskalis, Enshore Subsea) are not included because no reusable source stating their cable work was found (reasons are listed).
Data Preview
* The first 5 rows of the full list (real data).| company_name | hq_country | listing | role | cable_types_stated | notable_projects |
|---|---|---|---|---|---|
| Correll Group | not stated in sources used | not stated in sources used | inter-array cable termination and testing contractor (subcontractor to DEME Offshore) | inter-array | Dogger Bank A (UK): inter-array cable termination and testing on 95 wind turbines and the offshore substation platform, contract from DEME Offshore [Dogger Bank site] |
| CRP Subsea (AIS) | not stated in sources used | not stated in sources used | cable protection systems (NjordGuard); 'providing cabling' as UK content (per UKEF) | inter-array (cable protection) | Greater Changhua 4 and Greater Changhua 2 (Taiwan): UK content 'providing cabling' [UKEF] | East Anglia TWO (UK): NjordGuard cable protection systems, contract from Seaway7 (2026) [CRP site] | Fengmiao (Taiwan): NjordGuard CPS for inter-array cables, contract from LS Cable & System (2026) [CRP site] |
| DeepOcean | not stated in sources used | not stated in sources used | inter-array cable repair and jointing contractor (framework agreement) | inter-array | Vattenfall / DanTysk Sandbank Offshore Wind: framework agreement for inter-array cable repairs and jointing (fast response plan), award notice 2025-11-11 [TED] |
| DEME (DEME Offshore) | not stated in sources used | not stated in sources used | cable installer / EPCI cable contractor (design, supply, installation and burial of inter-array and export cables); cable protection system stabilisation works | inter-array (66 kV); export; interconnector; 220 kV submarine (MOG 2) | Dogger Bank A, B & C (UK): design, supply and installation of inter-array cables [Dogger Bank site] | Coastal Virginia Offshore Wind (US): supply and installation of export and inner-array submarine cable systems with Prysmian [CVOW site] | Neart na Gaoithe (UK): EPCI of inter-array and interconnector cables [NnG site] |
| Far East Smart Energy (远东股份) | China (registered address: Xining, Qinghai) | Shanghai Stock Exchange: 600869 (per annual report) | submarine cable manufacturer (offshore wind array and export cables) | array (集电) cables; extra-high-voltage AC/DC export (送出) cables | Hainan Wanning 1 GW floating offshore wind project (China): won | Huadian Yangjiang Sanshandao 6 offshore wind (China): won, first 66 kV aluminium-core submarine cable project [2025 annual report] |
Showing 6 of 11 columns. All columns are listed below.
Full list: 30 rows · CSV · last verified Oct 12, 2026
* One-time payment via Stripe · Organization info only · No change-of-mind refunds (digital product)
Where the source data is published
Everything here can be read free of charge: SEC EDGAR filings, GOV.UK and CMA pages, TED notices (ted.europa.eu), the NREL report, CNINFO annual reports and the wind farm and company web pages cited. URLs are in every row. ReqoData's work is finding the cable contractors across 58 documents, separating cable work from foundation or turbine work in the same documents, checking each site's terms before reuse, keeping each field in the source's own words and keeping the exact wording beside each row.
Read the full noteAbout this list
- Rows
- 30
- Columns
- 11
- Format
- CSV (UTF-8, opens in Excel)
- Last verified
- Oct 12, 2026
Source data as of
SEC filings 2018-2026 (latest: Helix 10-K for 2025, filed 2026-02-26); GOV.UK pages 2021-2025 and CMA report 2023; TED award notices 2024-09 to 2025-11; NREL supply chain road map (2023); CNINFO annual reports for 2025 and Orient Cable 2026 half-year report; wind farm and company web pages; all read on 2026-10-12
Last verified is the date we fetched the source data and confirmed it was the latest version the publishers had released.
What this list adds to the free source data
- Each company's offshore wind cable role is tied to named projects from primary documents: the Vineyard Wind 1 contract schedule in an SEC filing (export cable package, array cable package, array cable supply), the CVOW partnership agreement (inter-array cable purchase orders), EU TED award notices (MOG 2, Baltica 2, DanTysk) and wind farm developers' own pages (Dogger Bank, Sofia, Neart na Gaoithe, Beatrice, CVOW).
- Manufacturers, installers, trenching and termination contractors and cable protection suppliers are separated, and the role is quoted from a line that itself names the role (for example 'Supply and installation of HVDC and HVAC export cables').
- Vessel names are recorded only where a source names them for that company: cable-lay vessels NKT Victoria, Leonardo da Vinci, Skagerrak, Living Stone, Viking Neptun and PALOS; Acadia, which is a rock-installation (inclined fallpipe) vessel used for subsea rock cable protection, not a cable-lay vessel; and Aeolus and Calypso, which the Sofia site states were installing foundations and array cables.
- Chinese submarine cable makers (Orient Cable, ZTT, Hengtong, Hanhe, Far East, Qifan) and installer Huadian Heavy Industries are covered from their 2025/2026 statutory reports, with the original Chinese wording kept beside each row.
- Every row carries the exact source wording (evidence_quote); a script re-checked every quote against the 58 source documents on 2026-10-12 and refuses to build if any quote or keyword check fails.
Limitations and what's not included
- Not a complete list. 30 companies are included; 17 candidates or groups are excluded with the reason in excluded_candidates. Large installers Seaway7, Boskalis and Enshore Subsea, and companies such as Asso.subsea, LS Marine Solution and LD Travocean, are missing because their own sites forbid reuse or could not be reached and no reusable regulator, filing or project-site line stating their cable work was found. Paid databases (4C Offshore, TGS / Wood Mackenzie, Rystad) were not used.
- Coverage follows the reusable sources: US projects (SEC filings), UK projects (GOV.UK and project sites), EU award notices published in eForms since November 2023, and Chinese listed companies. Many Japanese, Korean and Taiwanese contractors are not covered.
- Projects and roles are as stated by the source and as of its date (several SEC and GOV.UK sources date from 2019-2024); a contract award or a 'won' statement is not proof of completed work. Where an award notice names several winners of a multi-lot contract (MOG 2), the row says so and does not assign a lot.
- Some rows use a company's own description of itself (for example Vos Prodect, Global Offshore); these are the company's statements. Some company sites are single-page applications, so a news teaser on the home page is quoted rather than the article.
- hq_country and listing are given only where a quoted source states them; most rows say 'not stated in sources used'. Helix Energy Solutions Group appears under its SEC record name change (Hornbeck Offshore Services, Inc.); Great Lakes Dredge & Dock deregistered from the SEC in 2026 (Form 15-12G filed 2026-04-13), so its record shows no ticker.
- Organisation data only: no people's names or contact details. Delivered as CSV; no API.
Where the source data is published
Everything here can be read free of charge: SEC EDGAR filings, GOV.UK and CMA pages, TED notices (ted.europa.eu), the NREL report, CNINFO annual reports and the wind farm and company web pages cited. URLs are in every row. ReqoData's work is finding the cable contractors across 58 documents, separating cable work from foundation or turbine work in the same documents, checking each site's terms before reuse, keeping each field in the source's own words and keeping the exact wording beside each row.
Organization info only. The list contains no personal contact details of individuals.
Columns in the CSV (11)
| Column | Description |
|---|---|
| company_name | Company (one row per company; group/brand names as the sources use them). |
| hq_country | Head-office country only where a quoted source states it (city or registered address in brackets); 'not stated in sources used' otherwise. |
| listing | Exchange and ticker only as stated in a source or shown by the SEC company record; 'not stated in sources used' otherwise. |
| role | Role in offshore wind cabling as stated (cable manufacturer, cable installer, EPCI cable contractor, cable burial/trenching, cable protection, vessel operator, termination/testing). |
| cable_types_stated | Cable types as stated in the quoted lines (export, array/inter-array, HVDC, HVAC, voltage). Not inferred. |
| notable_projects | Up to three projects, each with the company's role and the source in brackets, as stated; separated by ' | '. |
| vessels_stated | Cable-lay / installation vessel names stated in the sources for this company; 'not stated in sources used' otherwise. |
| website | Company website where the company's own site was used as a source; 'not stated in sources used' otherwise. |
| source_url | Source URL(s) for the row, separated by ' | '. |
| evidence_quote | Exact wording relied on (several quotes separated by ' || '). Chinese quotes kept in the original language. |
| last_verified | Date ReqoData last re-checked every quote for the row against the source. |
Sources and licenses
- SEC EDGAR - filings of Avangrid (Vineyard Wind 1 contract schedule), Dominion Energy (CVOW), Eversource, Eneti, HC2 Holdings (Global Marine), Helix Energy Solutions, Great Lakes Dredge & Dock; SEC company recordsToS judgement: usable. US government records; SEC fair-access policy followed (declared user agent, low request rate). EDGAR full-text search was used only to find filings
- NREL for US DOE - A Supply Chain Road Map for Offshore Wind Energy in the United States (2023)ToS judgement: usable for facts with short quotations. US DOE national laboratory report available at no cost; robots.txt allows the file
- GOV.UK (UK Export Finance, UK Government, Scotland Office) and CMA report on the Sumitomo Electric subsidyToS judgement: usable. Contains public sector information licensed under the Open Government Licence v3.0
- TED (Tenders Electronic Daily) contract award notices, read through the public TED Search APIToS judgement: usable. EU Publications Office open data; the TED API documentation describes anonymous search access for retrieving published notices 'for analysis or reuse'. The ted.europa.eu web pages answer automated requests with a challenge, so notices were read only through the API; winner contact persons and e-mails are not requested or recorded
- CNINFO (cninfo.com.cn) - 2025 annual reports of Orient Cable, ZTT, Hengtong, Hanhe, Far East, Qifan, Huadian Heavy Industries; Orient Cable 2026 half-year reportToS judgement: usable. Statutory reports of listed issuers; site disclaimer has no reuse restriction; facts restated with short quotations
- Wind farm project websites: Dogger Bank, Sofia, Neart na Gaoithe, Beatrice, Coastal Virginia Offshore Wind (coastalvawind.com)ToS judgement: usable for facts with short quotations. No terms of use restricting reuse found (privacy and cookie notices and copyright lines only); robots.txt allows the pages fetched
- Company websites without reuse restrictions found: Orient Cable, Taihan, N-Sea, Tekmar, First Subsea, CRP Subsea (AIS), Vos Prodect; Furukawa ElectricToS judgement: usable for facts with short quotations. No terms restricting reuse found except sales terms (copyright notices or privacy policies only); Furukawa's terms of use permit reproduction within quotation (citation) allowed by copyright law. robots.txt allows the pages fetched
Last verified: Oct 12, 2026
Frequently Asked Questions
Q.Where does the data come from?
Mainly from the official registers and other public data listed on this page under “Sources and licenses”. For some lists, ReqoData added columns (such as website URLs) after checking each organization's own website; those sources are listed there too. Organization info only — no personal contact details.
Q.Is the full list available now?
Yes. After payment you get the CSV (30 rows, last verified Oct 12, 2026) on a download page right away.
Q.What does it cost?
$149, a one-time card payment through Stripe. There is no subscription. As a digital product, it can't be returned for change of mind; if the file has a material error, report it from the download page and we'll provide a corrected file or a refund.
Q.Is the list updated after purchase?
No. The CSV reflects the sources as of SEC filings 2018-2026 (latest: Helix 10-K for 2025, filed 2026-02-26); GOV.UK pages 2021-2025 and CMA report 2023; TED award notices 2024-09 to 2025-11; NREL supply chain road map (2023); CNINFO annual reports for 2025 and Orient Cable 2026 half-year report; wind farm and company web pages; all read on 2026-10-12; on Oct 12, 2026 (last verified) we confirmed these were the latest versions published. It isn't updated automatically, and there is no API. If you download it again later, you get the version of this list we provide at that time.
Q.What format is it delivered in?
CSV (opens in Excel or Google Sheets). There is no API.