Company lists · Data refreshed October 2026

Top 25 Oil and gas maintenance contractors worldwide

Name: Oil and gas maintenance contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Oct 22, 2026 6,313 companies tracked

RevenueBase identified 6,313 company matches for oil and gas maintenance contractors worldwide as of October 2026 and tracks 195,357 professional contacts across them, including 26,513 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for oil and gas maintenance 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 22, 2026. Country and city lists for oil and gas maintenance 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 22, 2026 How this list was built

6,313Companies

195,357Contacts tracked

26,513Verified emails

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The 25 largest oil and gas maintenance contractors worldwide

Ranked by team size

Top 25 of 6,313 company matches for oil and gas maintenance contractors worldwide, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Oct 22, 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Estrutural	Exact match	Porto Alegre, BrazilHQ recorded Oct 22, 2026	1,001-5,000	2,795 contacts →
	Exact match “Quem somos: Somos uma empresa nacional, com mais de 30 anos no segmento da construção, montagem e manutenção industrial.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
2	Qatar Engineering & Construction Company W.L.L	Exact match	Ras Laffan Industrial City (rlic), QatarHQ recorded Oct 22, 2026	5,001-10,000	2,397 contacts →
	Exact match “Qatar Engineering & Construction Company (Qcon) is the leading National EPC & Maintenance Contractor in the Oil & Gas, Petrochemical, Fertilizer and Power industries.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
3	SAN Antonio Internacional	Exact match	Comuna 1, ArgentinaHQ recorded Oct 22, 2026	1,001-5,000	2,247 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 · Oct 22, 2026 · View company records in RevenueBase
4	ELFE	Exact match	Macaé, BrazilHQ recorded Oct 22, 2026	1,001-5,000	2,006 contacts →
	Exact match “No mercado há mais de duas décadas, a Axia é uma empresa nacional com atuação em operação e manutenção industrial.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
5	Brown & Root Industrial Services, LLC	Exact match	Baton Rouge, LA, United StatesHQ recorded Oct 22, 2026	5,001-10,000	1,969 contacts →
	Exact match “Brown & Root Industrial Services offers the full range of industrial services – engineering, construction, maintenance, turnaround, and specialty (painting, scaffolding…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
6	EMC Egyptian Maintenance Company	Exact match	New Cairo, EgyptHQ recorded Oct 22, 2026	5,001-10,000	1,949 contacts →
	Exact match “Since its foundation in 1997, EMC has become a well-known maintenance and modification service provider to major oil, gas and petrochemical companies, pipeline and refinery…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
7	Dietsmann	Exact match	Fontvieille, MonacoHQ recorded Oct 22, 2026	5,001-10,000	1,931 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 · Oct 22, 2026 · View company records in RevenueBase
8	Groupe Ponticelli Frères	Exact match	FranceHQ recorded Oct 22, 2026	5,001-10,000	1,900 contacts →
	Exact match “The Ponticelli Frères Group is one of the main European service suppliers to companies in the energy (oil and gas, nuclear, renewable energy), industrial (chemical, steelworks…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
9	AYTB	Exact match	Jubail Industrial City, Saudi ArabiaHQ recorded Oct 22, 2026	5,001-10,000	1,887 contacts →
	Exact match “AYTB had recognized the Saudi Dream 45 years ago when the Royal Commission for Jubail and Yanbu was set up with a vision to build a huge petrochemical industry to catapult Saudi…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
10	Confipetrol S.A	Exact match	Bogotá, ColombiaHQ recorded Oct 22, 2026	1,001-5,000	1,727 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
11	Austin Industrial, INC	Exact match	La Porte, TX, United StatesHQ recorded Oct 22, 2026	1,001-5,000	1,719 contacts →
	Exact match “Austin Industrial delivers premier maintenance, construction, and soft craft services to the nation’s leading producers of oil, gas & chemicals; energy; and manufactured goods.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
12	Dialog Group Berhad	Exact match	Petaling Jaya, MalaysiaHQ recorded Oct 22, 2026	1,001-5,000	1,599 contacts →
	Exact match “DIALOG is a leading integrated technical service provider to the energy sector, in Malaysia and internationally.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
13	Sendan International Company	Exact match	Jubail Industrial City, Saudi ArabiaHQ recorded Oct 22, 2026	1,001-5,000	1,485 contacts →
	Exact match “Founded in 1994, Sendan has rapidly grown from a modest contractor to a reputable General Contractor for Plant Construction and Maintenance.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
14	Bilfinger North America	Exact match	The Woodlands, TX, United StatesHQ recorded Oct 22, 2026	10001+	1,416 contacts →
	Exact match “As a leading construction and maintenance provider, Bilfinger aims to enhance the efficiency of assets and lower operational costs.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
15	Universal Plant Services	Exact match	Deer Park, TX, United StatesHQ recorded Oct 22, 2026	501-1,000	1,360 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 · Oct 22, 2026 · View company records in RevenueBase
16	Nexxo S.A	Exact match	Concón, ChileHQ recorded Oct 22, 2026	1,001-5,000	1,357 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
17	Strike	Exact match	Spring, TX, United StatesHQ recorded Oct 22, 2026	1,001-5,000	1,212 contacts →
	Exact match “Strike safely and reliably delivers the specialized asset maintenance, construction, and contracting services that are business-critical to the energy, chemical, manufacturing…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
18	Irmãos Passaúra S A	Exact match	Curitiba, BrazilHQ recorded Oct 22, 2026	1,001-5,000	1,167 contacts →
	Exact match “Empresa de Montagem e Manutenção Industrial” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
19	Stewart & Stevenson	Exact match	Houston, TX, United StatesHQ recorded Oct 22, 2026	1,001-5,000	1,145 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 · Oct 22, 2026 · View company records in RevenueBase
20	Emdad Group	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Oct 22, 2026	1,001-5,000	1,074 contacts →
	Exact match “Emdad LLC is a leading UAE-based service provider in the Oil & Gas sector, delivering integrated solutions that support upstream and downstream operations.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
21	Tuboscope	Exact match	Houston, TX, United StatesHQ recorded Oct 22, 2026	10001+	1,064 contacts →
	Exact match “For more than 85 years, Tuboscope™ has provided the industry with tubular expertise and an integrated suite of value-added solutions.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
22	Adyard ABU Dhabi LLC	Exact match	Abu Dhabi, United Arab EmiratesHQ recorded Oct 22, 2026	1,001-5,000	968 contacts →
	Exact match “Adyard is one of the United Arab Emirates (UAE) leading providers of services to the oil and gas, power, and water industries.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23	Starcon International, INC	Exact match	La Porte, TX, United StatesHQ recorded Oct 22, 2026	1,001-5,000	911 contacts →
	Exact match “Starcon is a national, full-service contractor offering comprehensive industrial and mechanical services in the oil & gas/refining, chemical/petrochemical, natural gas processing…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
24	Novus Bolashak	Exact match	Atyrau, KazakhstanHQ recorded Oct 22, 2026	1,001-5,000	907 contacts →
	Exact match “Novus Bolashak are a Full Service Systems Completion & Long Term Maintenance & Operations Contractor, including Procurement, Sub-contracting, Punch Identification & Clearing, Pre…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
25	Pt. Truba Jaga Cita	Exact match	Jakarta Selatan, IndonesiaHQ recorded Oct 22, 2026	1,001-5,000	888 contacts →
	Exact match “PT Truba Jaga Cita is subsidiary of PT.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase

RevenueBase SmartSearch

Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.

This list uses Exact for “oil and gas maintenance contractors”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.

Showing 25 of 6,313 oil and gas maintenance contractors worldwide

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Oil and gas maintenance contractors worldwide at a glance

As of Oct 22, 2026

13.6%Verified-email coverage

30.9Average contacts per company

11-50Median size (employees)

1.9%Largest-city concentration · Houston

Oct 22, 2026Page data refreshed

Companies by employee count

1-10

1,570

11-50

2,296

51-200

1,435

201-500

548

501-1,000

207

1,001-5,000

188

5,001-10,000

10001+

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 oil and gas maintenance contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “oil and gas maintenance 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 26,513 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 22, 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.

Oil and gas maintenance contractors by location

44 lists · largest first

Every Oil and gas maintenance 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 “oil and gas maintenance contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many oil and gas maintenance contractors are there worldwide?

RevenueBase identified 6,313 company matches for oil and gas maintenance 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?

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

Which country has the most oil and gas maintenance contractors?

The United States leads with 1,198 companies, followed by Brazil (365) and Nigeria (343). Every oil and gas maintenance contractors list by country and city is linked on this page.

Which city has the most oil and gas maintenance contractors?

Houston leads with 123 company records, followed by Port Harcourt (120) and Abu Dhabi (82).

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 26,513 professional contacts with verified work emails tracked across these 6,313 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 22, 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.