Company lists · Data refreshed September 2026

Top 25 Refinery maintenance contractors worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 17, 2026 3,629 companies tracked

RevenueBase identified 3,629 refinery maintenance contractors worldwide as of September 2026 and tracks 128,407 professional contacts across them, including 18,300 with verified work emails and 0 with mobile numbers. The United States is the largest market and Houston the largest hub.

This list covers refinery maintenance contractors worldwide, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026. Country and city lists for refinery maintenance contractors follow the table.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, 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 HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review

3,629Companies

128,407Contacts tracked

18,300Verified emails

0Mobile numbers

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The 25 largest refinery maintenance contractors worldwide

Ranked by team size

Top 25 of 3,629 refinery maintenance contractors worldwide, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to refinery maintenance contractors: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	STORK	Partial evidence	Utrecht, NetherlandsHQ checked Sep 17, 2026	10001+	4,073 contacts →
	Partial evidence “Stork is a global provider of integrated operations, maintenance, modification and asset integrity solutions.” Source: RevenueBase Database · checked Sep 17, 2026
2	Performance Contractors	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 17, 2026	1,001-5,000	2,757 contacts →
	Partial evidence “We began as a merit shop general industrial contractor back in 1979.” Source: RevenueBase Database · checked Sep 17, 2026
3	Brand Energy & Infrastructure Services	Partial evidence	GermanyHQ checked Sep 17, 2026	10001+	2,676 contacts →
	Partial evidence “Brand Energy & Infrastructure Services supports customers’ maintenance, turnaround and refurbishment needs as well as new construction, capital-driven upgrades and expansion…” Source: RevenueBase Database · checked Sep 17, 2026
4	Estrutural	Indirect evidence	Porto Alegre, BrazilHQ checked Sep 17, 2026	1,001-5,000	2,461 contacts →
	Indirect evidence “Quem somos: Somos uma empresa nacional, com mais de 30 anos no segmento da construção, montagem e manutenção industrial.” Source: RevenueBase Database · checked Sep 17, 2026
5	Qatar Engineering & Construction Company W.L.L	Strong evidence	Ras Laffan Industrial City (rlic), QatarHQ checked Sep 17, 2026	5,001-10,000	2,222 contacts →
	Strong evidence “Qatar Engineering & Construction Company (Qcon) is the leading National EPC & Maintenance Contractor in the Oil & Gas, Petrochemical, Fertilizer and Power industries.” Source: RevenueBase Database · checked Sep 17, 2026
6	Bilfinger UK	Partial evidence	Warrington, United KingdomHQ checked Sep 17, 2026	1,001-5,000	2,052 contacts →
	Partial evidence “With a strong commitment to sustainability, Bilfinger UK stands out as a premier provider of engineering and maintenance services.” Source: RevenueBase Database · checked Sep 17, 2026
7	Brown & Root Industrial Services, LLC	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 17, 2026	5,001-10,000	1,940 contacts →
	Partial evidence “Brown & Root Industrial Services offers the full range of industrial services – engineering, construction, maintenance, turnaround, and specialty (painting, scaffolding…” Source: RevenueBase Database · checked Sep 17, 2026
8	ELFE	Indirect evidence	Macaé, BrazilHQ checked Sep 17, 2026	1,001-5,000	1,898 contacts →
	Indirect evidence “No mercado há mais de duas décadas, a Axia é uma empresa nacional com atuação em operação e manutenção industrial.” Source: RevenueBase Database · checked Sep 17, 2026
9	AYTB	Indirect evidence	Jubail Industrial City, Saudi ArabiaHQ checked Sep 17, 2026	5,001-10,000	1,812 contacts →
	Indirect evidence “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…” Source: RevenueBase Database · checked Sep 17, 2026
10	Austin Industrial, INC	Partial evidence	La Porte, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,649 contacts →
	Partial evidence “Austin Industrial delivers premier maintenance, construction, and soft craft services to the nation’s leading producers of oil, gas & chemicals; energy; and manufactured goods.” Source: RevenueBase Database · checked Sep 17, 2026
11	Sendan International Company	Strong evidence	Jubail Industrial City, Saudi ArabiaHQ checked Sep 17, 2026	1,001-5,000	1,595 contacts →
	Strong evidence “Founded in 1994, Sendan has rapidly grown from a modest contractor to a reputable General Contractor for Plant Construction and Maintenance.” Source: RevenueBase Database · checked Sep 17, 2026
12	Arabian Pipeline & Services Co. Ltd. Anabeeb	Indirect evidence	Dammam, Saudi ArabiaHQ checked Sep 17, 2026	5,001-10,000	1,587 contacts →
	Indirect evidence “ANABEEB is on a mission to become the best in the industry, together with our highly-dedicated workforce and global partners, we will deliver added value to our customers without…” Source: RevenueBase Database · checked Sep 17, 2026
13	Confipetrol S.A	Indirect evidence	Bogotá, ColombiaHQ checked Sep 17, 2026	1,001-5,000	1,580 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
14	Universal Plant Services	Indirect evidence	Deer Park, TX, United StatesHQ checked Sep 17, 2026	501-1,000	1,371 contacts →
	Indirect evidence “Universal Plant Services (UPS) is the industry's foremost specialists in rotating and reciprocating equipment services.” Source: RevenueBase Database · checked Sep 17, 2026
15	Arabian Industries	Partial evidence	Alkhuwair, OmanHQ checked Sep 17, 2026	10001+	1,329 contacts →
	Partial evidence “We deliver engineered solutions for the oil, gas and industrialised sectors through our manufacturing, EPC Projects, Maintenance & Turnarounds, Logistics & Rig Moving and Support…” Source: RevenueBase Database · checked Sep 17, 2026
16	Nexxo S.A	Indirect evidence	Concón, ChileHQ checked Sep 17, 2026	1,001-5,000	1,225 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 17, 2026
17	Strike	Partial evidence	Spring, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	1,155 contacts →
	Partial evidence “Strike safely and reliably delivers the specialized asset maintenance, construction, and contracting services that are business-critical to the energy, chemical, manufacturing…” Source: RevenueBase Database · checked Sep 17, 2026
18	Irmãos Passaúra S A	Indirect evidence	Curitiba, BrazilHQ checked Sep 17, 2026	1,001-5,000	1,075 contacts →
	Indirect evidence “Empresa de Montagem e Manutenção Industrial” Source: RevenueBase Database · checked Sep 17, 2026
19	Emdad Group	Indirect evidence	Abu Dhabi, United Arab EmiratesHQ checked Sep 17, 2026	1,001-5,000	1,027 contacts →
	Indirect evidence “Emdad LLC is a leading UAE-based service provider in the Oil & Gas sector, delivering integrated solutions that support upstream and downstream operations.” Source: RevenueBase Database · checked Sep 17, 2026
20	Sapref	Indirect evidence	Prospecton, South AfricaHQ checked Sep 17, 2026	501-1,000	944 contacts →
	Indirect evidence “SAPREF is a joint venture between Shell SA Refining and BP Southern Africa.” Source: RevenueBase Database · checked Sep 17, 2026
21	Repcon, INC	Partial evidence	Baton Rouge, LA, United StatesHQ checked Sep 17, 2026	1,001-5,000	877 contacts →
	Partial evidence “Repcon has earned a reputation for leading the industry in turnarounds, specialty welding, construction, pipe fabrication, and maintenance.” Source: RevenueBase Database · checked Sep 17, 2026
22	Starcon International, INC	Partial evidence	La Porte, TX, United StatesHQ checked Sep 17, 2026	1,001-5,000	866 contacts →
	Partial evidence “Starcon is a national, full-service contractor offering comprehensive industrial and mechanical services in the oil & gas/refining, chemical/petrochemical, natural gas processing…” Source: RevenueBase Database · checked Sep 17, 2026
23	Irem SPA	Partial evidence	Siracusa, ItalyHQ checked Sep 17, 2026	1,001-5,000	789 contacts →
	Partial evidence “IREM GROUP Provides complete services in the field of Procurement, Detail Engineering, Construction and Maintenance of Industrial Plants.” Source: RevenueBase Database · checked Sep 17, 2026
24	Techocean Engineering Solutions	Indirect evidence	Macaé, BrazilHQ checked Sep 17, 2026	501-1,000	751 contacts →
	Indirect evidence “Techocean is a supplier of engineering services focused on the oil & gas industry, creating solutions for steel fabrications as Platforms, Piping Lines, Several Structures and…” Source: RevenueBase Database · checked Sep 17, 2026
25	Terrabel	Indirect evidence	Contagem, BrazilHQ checked Sep 17, 2026	1,001-5,000	733 contacts →
	Indirect evidence “Fundada em Belo Horizonte nos anos 70, atualmente instalada em amplas dependências na cidade de Contagem, a TERRABEL dispõe de uma equipe de engenheiros, técnicos, mecânicos…” Source: RevenueBase Database · checked Sep 17, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: refinery maintenance contractors. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names refinery maintenance contractors.
Partial evidence: Its own public description names part of refinery maintenance contractors, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name refinery maintenance contractors. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 3,629 refinery maintenance contractors worldwide

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Refinery maintenance contractors worldwide at a glance

As of Sep 17, 2026

14.3%Verified-email coverage

35.4Average contacts per company

11-50Median size (employees)

2.0%Largest-city concentration · Houston

Sep 17, 2026Page data refreshed

Companies by employee count

1-10

1,045

11-50

1,301

51-200

760

201-500

270

501-1,000

107

1,001-5,000

102

5,001-10,000

10001+

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among refinery maintenance contractors, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
Coverage: 26 countries, largest first: the United States, Brazil, Canada, Italy, the United Arab Emirates, Nigeria, Saudi Arabia, India, the United Kingdom, France and 16 more. Country and city lists for refinery maintenance contractors are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “refinery maintenance contractors”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names refinery maintenance contractors), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among refinery maintenance contractors, and records with no verified work email.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
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 listed company carries at least one verified work email, 18,300 across the full list. 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 September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Refinery maintenance contractors by location

26 lists · largest first

Every Refinery maintenance contractors list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names refinery maintenance contractors, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many refinery maintenance contractors are there worldwide?

RevenueBase identified 3,629 refinery maintenance contractors worldwide as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

STORK, headquartered in Utrecht, tops this list with the largest team on record.

Which country has the most refinery maintenance contractors?

The United States leads with 829 companies, followed by Brazil (432) and Canada (203). Every refinery maintenance contractors list by country and city is linked on this page.

Which city has the most refinery maintenance contractors?

Houston leads with 74 headquartered companies, followed by Port Harcourt (58) and Abu Dhabi (56).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 18,300 verified decision-maker contacts tracked across these 3,629 companies.

How current is this list?

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