Company lists · Data refreshed October 2026

Top 25 Jack-up rig contractors worldwide

RevenueBase identified 432 company matches for jack-up rig contractors worldwide as of October 2026 and tracks 104,247 professional contacts across them, including 14,769 with verified work emails. The United States is the largest market and Singapore the largest hub.

This list covers company matches for jack-up rig contractors worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 17, 2026. Country and city lists for jack-up rig contractors follow the table.

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.

How to read this list RevenueBase SmartSearch · Exact Recorded Oct 17, 2026 How this list was built
432Companies
104,247Contacts tracked
14,769Verified emails
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The 25 largest jack-up rig contractors worldwide

Ranked by team size
Top 25 of 432 company matches for jack-up rig contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 17, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchZug, SwitzerlandHQ recorded Oct 17, 20261,001-5,00010,599 contacts →

Exact match

“Transocean is a leading international provider of offshore contract drilling services for oil and gas wells.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Oct 17, 20265,001-10,0005,939 contacts →

Exact match

“Noble is a leading offshore drilling contractor for the oil and gas industry.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
3Exact matchHouston, United StatesHQ recorded Oct 17, 20261,001-5,0005,065 contacts →

Exact match

“Seadrill is setting the standard in deepwater oil and gas drilling.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Oct 17, 20265,001-10,0003,263 contacts →

Exact match

“We Are Valaris With decades of expertise and strategic commitment built on efficiency, capability and ingenuity, our sights are continually set toward a future built with purpose…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
5Exact matchDubai, United Arab EmiratesHQ recorded Oct 17, 20261,001-5,0002,770 contacts →

Exact match

“Shelf Drilling is a wholly owned subsidiary of ADES Holding Company, a leading international oil and gas drilling services provider.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
6Exact matchChâtel-saint-denis, United StatesHQ recorded Oct 17, 20261,001-5,0002,765 contacts →

Exact match

“Allseas is a world-leading contractor in the offshore energy market.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
7Exact matchCalgary, AB, CanadaHQ recorded Oct 17, 20265,001-10,0002,622 contacts →

Exact match

“Precision is a leading provider of safe and High Performance, High-Value services to the oil and gas industry.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
8Exact matchCairo, EgyptHQ recorded Oct 17, 20265,001-10,0002,102 contacts →

Exact match

“EDC is one of the leading drilling contractors in Egypt and the MENA region; established in 1976 in partnership with Maersk Drilling, EDC is now 100% owned by Egyptian General…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
9Exact matchAl-khobar, Saudi ArabiaHQ recorded Oct 17, 20265,001-10,0002,072 contacts →

Exact match

“We are the region’s trusted onshore and offshore oil & gas drilling company with an extensive track record of operational excellence and advanced capabilities that have enabled…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
10Exact matchAberdeen, United KingdomHQ recorded Oct 17, 20261,001-5,0001,894 contacts →

Exact match

“Odfjell Drilling is an international drilling company with around 1,500 employees with operations around the world.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Oct 17, 20261,001-5,0001,805 contacts →

Exact match

“Borr Drilling Limited is an offshore shallow-water drilling contractor providing worldwide offshore drilling services to the oil and gas industry.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
12Exact matchSingaporeHQ recorded Oct 17, 20261,001-5,0001,620 contacts →

Exact match

“Delivering Sustainable Synergies for Global Possibilities Sembcorp Marine is an integrated brand offering one-stop engineering solutions for the offshore, marine and energy…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
13Exact matchUnited StatesHQ recorded Oct 17, 20261,001-5,0001,501 contacts →

Exact match

“Somos uma empresa focada em oferecer soluções em Perfuração Offshore, com expertise e excelência em afretamento e operação de sondas para águas ultraprofundas.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
14Exact matchDoha, QatarHQ recorded Oct 17, 20261,001-5,0001,445 contacts →

Exact match

“Gulf Drilling International Limited (GDI) was established in May 2004 as a joint venture between Qatar Petroleum (QP) and Japan Drilling Company (JDC), making it the first Qatari…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Oct 17, 20261,001-5,0001,375 contacts →

Exact match

“Headquartered in Houston, Hercules Offshore, Inc.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
16Exact matchDammam, Saudi ArabiaHQ recorded Oct 17, 20261,001-5,0001,280 contacts →

Exact match

“ARO is a world-class offshore drilling contractor that owns, operates, and manages a fleet of high-specification and premium jack-up rigs in Saudi Arabia.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
17Exact matchAmsterdam, NetherlandsHQ recorded Oct 17, 20261,001-5,0001,165 contacts →

Exact match

“HMH is a premier drilling solutions provider - delivering a broad portfolio of products and services that are designed to be the safest and most efficient in the industry.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
18Exact matchHamilton, BermudaHQ recorded Oct 17, 2026501-1,0001,041 contacts →

Exact match

“Vantage is an international offshore drilling contractor, formed in 2007, which markets, operates and manages modern, high specification drilling rigs.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
19Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Oct 17, 20261,001-5,000801 contacts →

Exact match

“With offices in Abu Dhabi, Dubai, Qatar and Singapore, Allianz Middle East Ship Management LLC(Allianz-ME) is a well-established marine contractors providing modern Offshore…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
20Exact matchAberdeen, United KingdomHQ recorded Oct 17, 2026201-500756 contacts →

Exact match

“Dolphin Drilling is the offshore drilling pioneer of the past and for the future.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
21Exact matchYantai, ChinaHQ recorded Oct 17, 202610001+744 contacts →

Exact match

“Yantai CIMC Raffles Offshore Technology Group Co, Ltd.(“CIMC Raffles”) is a leading offshore engineering and high-end marine equipment group in China, with a strong focus on the…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
22Exact matchCairo, EgyptHQ recorded Oct 17, 20261,001-5,000742 contacts →

Exact match

“SinoTharwa is a high level cooperative project that took place between China and Egypt forming SinoTharwa Drilling Company as a petroleum services company.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
23Exact matchSingaporeHQ recorded Oct 17, 2026201-500714 contacts →

Exact match

“The Pacific Radiance Group of Companies is an established owner and operator of offshore vessels and a provider of subsea services, shipyard services, marine equipment as well as…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
24Exact matchMumbai, IndiaHQ recorded Oct 17, 20261,001-5,000692 contacts →

Exact match

“The GREATSHIP GROUP is a provider of quality offshore oilfield services, owning and operating a comprehensive range of new generation, technologically advanced vessels and modern…”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase
25Exact matchHouston, TX, United StatesHQ recorded Oct 17, 2026501-1,000678 contacts →

Exact match

“Atwood Oceanics, Inc.”

Recorded in the RevenueBase company graph · Oct 17, 2026 · View company records in RevenueBase

Showing 25 of 432 jack-up rig contractors worldwide

See the full list, filter by size, metro and specialty, and access 14,769 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Jack-up rig contractors worldwide at a glance

As of Oct 17, 2026
14.2%Verified-email coverage
241.3Average contacts per company
51-200Median size (employees)
8.3%Largest-city concentration · Singapore
Oct 17, 2026Page data refreshed

Companies by employee count

1-10
77
11-50
88
51-200
105
201-500
50
501-1,000
35
1,001-5,000
57
5,001-10,000
11
10001+
8

Email recency is reported on each country list linked below.

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

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.
Coverage
Every country. Country and city lists for jack-up rig contractors are linked below.
What qualifies
Company records worldwide whose business descriptions match “jack-up rig contractors” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
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 displayed company carries at least one verified work email. RevenueBase tracks 14,769 professional contacts with verified work emails across the full matched dataset. 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 October 17, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Jack-up rig contractors by location

3 lists · largest first

Every Jack-up rig contractors 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 SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “jack-up rig contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many jack-up rig contractors are there worldwide?

RevenueBase identified 432 company matches for jack-up rig contractors worldwide as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

Transocean tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most jack-up rig contractors?

The United States leads with 90 companies, followed by the United Kingdom (29). Every jack-up rig contractors list by country and city is linked on this page.

Which city has the most jack-up rig contractors?

Singapore leads with 36 company records, followed by Houston (33) and Aberdeen (8).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 14,769 professional contacts with verified work emails tracked across these 432 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 17, 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.