Company lists · Data refreshed November 2026

Top 25 Wellhead maintenance services worldwide

RevenueBase identified 1,061 company matches for wellhead maintenance services worldwide as of November 2026 and tracks 33,464 professional contacts across them, including 6,261 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for wellhead maintenance services 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 6, 2026. Country and city lists for wellhead maintenance services 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 6, 2026 How this list was built
1,061Companies
33,464Contacts tracked
6,261Verified emails
Explore this list → Free signup · no credit card · 500 free credits

The 25 largest wellhead maintenance services worldwide

Ranked by team size
Top 25 of 1,061 company matches for wellhead maintenance services worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Nov 6, 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 matchComuna 1, ArgentinaHQ recorded Nov 6, 20261,001-5,0002,324 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 6, 2026 · View company records in RevenueBase
2Exact matchFontvieille, MonacoHQ recorded Nov 6, 20265,001-10,0002,035 contacts →

Exact match

“Dietsmann is the leading independent specialist in Operation & Maintenance services for continuous-production plant in the oil & gas and power industries with over 40 years of…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3Exact matchDeer Park, TX, United StatesHQ recorded Nov 6, 2026501-1,0001,418 contacts →

Exact match

“Universal Plant Services (UPS) is the industry's foremost specialists in rotating and reciprocating equipment services.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4Exact matchHouston, TX, United StatesHQ recorded Nov 6, 20261,001-5,000826 contacts →

Exact match

“Cactus designs, manufactures, sells and rents a range of highly-engineered wellheads and pressure control equipment.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5Exact matchEast Ahmadi, KuwaitHQ recorded Nov 6, 20261,001-5,000759 contacts →

Exact match

“KUWAIT DRILLING CO.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6Exact matchUsa, United KingdomHQ recorded Nov 6, 2026501-1,000728 contacts →

Exact match

“Delta Corporation specializes in the design and manufacture of API-compliant wellhead equipment and pressure control systems for both onshore and offshore oil and gas operations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7Exact matchEdmonton, TX, CanadaHQ recorded Nov 6, 20261,001-5,000675 contacts →

Exact match

“Founded in Edmonton, Alberta in 1962, Stream-Flo Industries Ltd.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8Exact matchHouston, United StatesHQ recorded Nov 6, 20261,001-5,000649 contacts →

Exact match

“Worldwide Oilfield Machine (WOM) is a multinational equipment manufacturer specializing in solutions for drilling, testing, production and intervention operations.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9Exact matchHouston, ND, United StatesHQ recorded Nov 6, 20261,001-5,000533 contacts →

Exact match

“Ranger is one of the largest providers of high specification mobile rig well services, cased hole wireline services, and ancillary services in the U.S.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10Exact matchDubai, United Arab EmiratesHQ recorded Nov 6, 2026501-1,000461 contacts →

Exact match

“NTS Amega Global is a market leader in repair, rental and manufacturing solutions supporting energy markets around the world.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026501-1,000384 contacts →

Exact match

“Express Energy Services, a leading oilfield services company, is active in every major hydrocarbon basin in the United States and is a premier provider of products and services…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12Exact matchIndiaHQ recorded Nov 6, 2026201-500347 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13Exact matchAberdeen, United KingdomHQ recorded Nov 6, 2026201-500310 contacts →

Exact match

“Well-Safe Solutions supports each stage of the well life cycle, from cradle to grave, as part of the global energy transition.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026201-500295 contacts →

Exact match

“Greene’s Energy Group offers a range of support services and products to the oil and gas industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15Exact matchPasig, PhilippinesHQ recorded Nov 6, 2026501-1,000279 contacts →

Exact match

“Thermaprime Drilling Corporation Geothermal, Oil & Gas Drilling BASIC SERVICES Well Construction Management • Drilling of geothermal wells • Drilling of onshore oil and gas wells…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16Exact matchAssen, NetherlandsHQ recorded Nov 6, 2026201-500269 contacts →

Exact match

“The WellGear Group provides a full range of high-quality services for both Onshore & Offshore to the international Oil & Gas, Petrochemical and Geothermal industries.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17Exact matchZwijndrecht, BelgiumHQ recorded Nov 6, 2026201-500243 contacts →

Exact match

“Howden Maintenance Partners is part of Chart Industries and is a growing service company within the group, specializing in the maintenance, repair, and overhaul of industrial…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18Exact matchMuscat, OmanHQ recorded Nov 6, 2026501-1,000235 contacts →

Exact match

“Special Oilfield Services (SOS) was established on the 10th of March in 1986 as a Joint Venture between Mohsin Haider Darwish LLC (MHD), one of the largest and oldest business…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19Exact matchHouston, TX, United StatesHQ recorded Nov 6, 2026501-1,000234 contacts →

Exact match

“A leader in wellhead, pressure control, and production tree (Christmas Tree) equipment and service solutions, Vault PC also supports a top-tier completions division, supporting…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20Exact matchNaas, TX, IrelandHQ recorded Nov 6, 202651-200215 contacts →

Exact match

“OFS was established in 2002 to meet the growing needs of the international Oil & Gas, Power Generation and Energy markets.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21Exact matchSingaporeHQ recorded Nov 6, 2026501-1,000205 contacts →

Exact match

“OMS Oilfield Services is leading oilfield services and manufacturing company.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22Exact matchAberdeen, United KingdomHQ recorded Nov 6, 2026201-500202 contacts →

Exact match

“The global innovation leader enabling efficient and sustainable well lifecycle solutions.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23Exact matchTehran, IranHQ recorded Nov 6, 20261,001-5,000200 contacts →

Exact match

“We are proud to present over a half century of our history, beginning with formation of the Ofogh Consulting Engineers Company in 1961.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24Exact matchSagrada Família – Luanda Angola, AngolaHQ recorded Nov 6, 2026201-500195 contacts →

Exact match

“Prometim operates in diverse areas of Maintenance, specializing in the Oil & Gas and General Industry.”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25Exact matchHidd, BahrainHQ recorded Nov 6, 202651-200175 contacts →

Exact match

“In 2009, the company was incorporated in the Kingdom of Bahrain as MTQ Oilfield Services W.L.L (MTQOS) and became a wholly-owned subsidiary of MTQ Group, which is listed on the…”

Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase

Showing 25 of 1,061 wellhead maintenance services worldwide

See the full list, filter by size, metro and specialty, and access 6,261 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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Wellhead maintenance services worldwide at a glance

As of Nov 6, 2026
18.7%Verified-email coverage
31.5Average contacts per company
11-50Median size (employees)
3.5%Largest-city concentration · Houston
Nov 6, 2026Page data refreshed

Companies by employee count

1-10
318
11-50
387
51-200
221
201-500
76
501-1,000
27
1,001-5,000
19
5,001-10,000
3
10001+
1

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 wellhead maintenance services are linked below.
What qualifies
Company records worldwide whose business descriptions match “wellhead maintenance services” 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 6,261 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 6, 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.

Wellhead maintenance services by location

7 lists · largest first

Every Wellhead maintenance services 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 “wellhead maintenance services”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many wellhead maintenance services are there worldwide?

RevenueBase identified 1,061 company matches for wellhead maintenance services 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?

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

Which country has the most wellhead maintenance services?

The United States leads with 286 companies, followed by Canada (66) and Brazil (57). Every wellhead maintenance services list by country and city is linked on this page.

Which city has the most wellhead maintenance services?

Houston leads with 37 company records, followed by Midland (26) and Port Harcourt (20).

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 6,261 professional contacts with verified work emails tracked across these 1,061 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 6, 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.