Company lists · Data refreshed November 2026

Top 25 Semi submersible drilling rigs suppliers worldwide

RevenueBase identified 736 company matches for semi submersible drilling rigs suppliers worldwide as of November 2026 and tracks 116,654 professional contacts across them, including 16,996 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for semi submersible drilling rigs suppliers 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 November 1, 2026. Country and city lists for semi submersible drilling rigs suppliers 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 Nov 1, 2026 How this list was built
736Companies
116,654Contacts tracked
16,996Verified emails
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The 25 largest semi submersible drilling rigs suppliers worldwide

Ranked by team size
Top 25 of 736 company matches for semi submersible drilling rigs suppliers worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 1, 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 Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
2Exact matchHouston, TX, United StatesHQ recorded Nov 1, 202610001+6,266 contacts →

Exact match

“Nabors Industries is a leading provider of advanced technology for the energy industry.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
3Exact matchHouston, TX, United StatesHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
4Exact matchHouston, United StatesHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
5Exact matchHouston, TX, United StatesHQ recorded Nov 1, 20265,001-10,0003,497 contacts →

Exact match

“Tidewater Inc.(Tidewater) is the owner and operator of the world’s largest Offshore Support Vessel (OSV) fleet.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
6Exact matchHouston, TX, United StatesHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
7Exact matchCalgary, AB, CanadaHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
8Exact matchRio De Janeiro, BrazilHQ recorded Nov 1, 20261,001-5,0002,328 contacts →

Exact match

“A OCYAN atua há décadas na prestação de serviços para o setor de óleo e gás upstream, estruturando suas operações em três frentes de atuação.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
9Exact matchComuna 1, ArgentinaHQ recorded Nov 1, 20261,001-5,0002,247 contacts →

Exact match

“Somos la mayor prestadora de servicios de perforación de la Argentina y somos líderes en la prestación de servicios asociados al mantenimiento y optimización de los pozos de…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
10Exact matchHouston, TX, United StatesHQ recorded Nov 1, 20261,001-5,0002,076 contacts →

Exact match

“For oil & gas exploration and production companies worldwide, Superior Energy Services is an oilfield products and services company with global reach, financial stability and…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
11Exact matchAl-khobar, Saudi ArabiaHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
12Exact matchLondon, United KingdomHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
13Exact matchUnited StatesHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
14Exact matchDoha, QatarHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
15Exact matchHouston, TX, United StatesHQ recorded Nov 1, 20261,001-5,0001,375 contacts →

Exact match

“Headquartered in Houston, Hercules Offshore, Inc.”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
16Exact matchHouston, TX, United StatesHQ recorded Nov 1, 20261,001-5,0001,145 contacts →

Exact match

“Stewart & Stevenson is a leading designer, manufacturer and provider of specialized equipment and aftermarket parts and service for the oil and gas and other industries that we…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
17Exact matchHamilton, BermudaHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
18Exact matchSingaporeHQ recorded Nov 1, 20261,001-5,000831 contacts →

Exact match

“Established since 1975, Swire Pacific Offshore (SPO) was a trusted marine services provider that pride itself on delivering safe, high quality, reliable and sustainable Marine…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
19Exact matchAbu Dhabi, United Arab EmiratesHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
20Exact matchAberdeen, United KingdomHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
21Exact matchYantai, ChinaHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
22Exact matchCairo, EgyptHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
23Exact matchDubai, United Arab EmiratesHQ recorded Nov 1, 2026n/a739 contacts →

Exact match

“Established in 1997, we operate an extensive fleet of Offshore Supply Vessels that service the Oil and Gas industry in the Middle East, South East Asia, Africa, India and the Gulf…”

Recorded in the RevenueBase company graph · Nov 1, 2026 · View company records in RevenueBase
24Exact matchSingaporeHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase
25Exact matchMumbai, IndiaHQ recorded Nov 1, 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 · Nov 1, 2026 · View company records in RevenueBase

Showing 25 of 736 semi submersible drilling rigs suppliers worldwide

See the full list, filter by size, metro and specialty, and access 16,996 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Semi submersible drilling rigs suppliers worldwide at a glance

As of Nov 1, 2026
14.6%Verified-email coverage
158.5Average contacts per company
11-50Median size (employees)
9.1%Largest-city concentration · Houston
Nov 1, 2026Page data refreshed

Companies by employee count

1-10
158
11-50
221
51-200
157
201-500
85
501-1,000
46
1,001-5,000
48
5,001-10,000
12
10001+
6

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 semi submersible drilling rigs suppliers are linked below.
What qualifies
Company records worldwide whose business descriptions match “semi submersible drilling rigs suppliers” 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 16,996 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 November 1, 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.

Semi submersible drilling rigs suppliers by location

7 lists · largest first

Every Semi submersible drilling rigs suppliers 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 “semi submersible drilling rigs suppliers”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many semi submersible drilling rigs suppliers are there worldwide?

RevenueBase identified 736 company matches for semi submersible drilling rigs suppliers worldwide as of November 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 semi submersible drilling rigs suppliers?

The United States leads with 191 companies, followed by the United Kingdom (39) and Canada (33). Every semi submersible drilling rigs suppliers list by country and city is linked on this page.

Which city has the most semi submersible drilling rigs suppliers?

Houston leads with 67 company records, followed by Singapore (29) and Calgary (11).

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 16,996 professional contacts with verified work emails tracked across these 736 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 November 1, 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.