Company lists · Data refreshed October 2026

Top 25 Refinery services and maintenance companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Oct 22, 2026 8,807 companies tracked

RevenueBase identified 8,807 company matches for refinery services and maintenance companies worldwide as of October 2026 and tracks 290,674 professional contacts across them, including 35,025 with verified work emails. The United States is the largest market and Houston the largest hub.

This list covers company matches for refinery services and maintenance companies 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 refinery services and maintenance companies 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

8,807Companies

290,674Contacts tracked

35,025Verified emails

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The 25 largest refinery services and maintenance companies worldwide

Ranked by team size

Top 25 of 8,807 company matches for refinery services and maintenance companies 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	Aesa A-Evangelista SA	Exact match	Canning, IndiaHQ recorded Oct 22, 2026	5,001-10,000	5,219 contacts →
	Exact match “Since 1948 we specialize in projects for the energy industry.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
2	CBSI	Exact match	Volta Redonda, BrazilHQ recorded Oct 22, 2026	10001+	3,994 contacts →
	Exact match “Somos a CBSI!” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
3	STORK	Exact match	Utrecht, NetherlandsHQ recorded Oct 22, 2026	10001+	3,942 contacts →
	Exact match “Stork is a global provider of integrated operations, maintenance, modification and asset integrity solutions.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
4	Saudi Aramco Total Refining And Petrochemical Company Satorp	Exact match	Jubail, Saudi ArabiaHQ recorded Oct 22, 2026	1,001-5,000	3,340 contacts →
	Exact match “The Saudi Aramco Total Refining and Petrochemical Company (SATORP) is one of the most advanced refineries in the world, with a processing capacity of barrels per day of Arabian…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
5	Engeman	Exact match	Recife, BrazilHQ recorded Oct 22, 2026	5,001-10,000	3,054 contacts →
	Exact match “Fundada em 1983, a Engeman atua com excelência no desenvolvimento de soluções para os diversos setores da indústria.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
6	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
7	Brand Energy & Infrastructure Services	Exact match	United KingdomHQ recorded Oct 22, 2026	10001+	2,739 contacts →
	Exact match “Brand Energy & Infrastructure Services supports customers’ maintenance, turnaround and refurbishment needs as well as new construction, capital-driven upgrades and expansion…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
8	Kaefer	Exact match	Bremen, GermanyHQ recorded Oct 22, 2026	10001+	2,731 contacts →
	Exact match “For over a century, KAEFER has been helping clients to protect and extend the life of their most valuable assets, while ensuring operational efficiency and the smooth delivery of…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
9	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
10	Oilserv	Exact match	Dubai, United Arab EmiratesHQ recorded Oct 22, 2026	1,001-5,000	2,362 contacts →
	Exact match “OiLSERV is a provider of an expanding range of oilfield services, including well logging, well testing, production enhancement, drilling services, surface production management…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
11	OCYAN	Exact match	Rio De Janeiro, BrazilHQ recorded Oct 22, 2026	1,001-5,000	2,328 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 · Oct 22, 2026 · View company records in RevenueBase
12	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
13	Bilfinger UK	Exact match	Warrington, United KingdomHQ recorded Oct 22, 2026	1,001-5,000	2,157 contacts →
	Exact match “With a strong commitment to sustainability, Bilfinger UK stands out as a premier provider of engineering and maintenance services.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
14	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
15	NAES	Exact match	Issaquah, WA, United StatesHQ recorded Oct 22, 2026	1,001-5,000	1,999 contacts →
	Exact match “NAES is the power generation industry’s largest independent services provider, with more than 40 years of experience managing risk and turning it into profits.” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
16	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
17	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
18	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
19	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
20	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
21	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
22	Arabian Pipeline & Services Co. Ltd. Anabeeb	Exact match	Dammam, Saudi ArabiaHQ recorded Oct 22, 2026	5,001-10,000	1,610 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Oct 22, 2026 · View company records in RevenueBase
23	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
24	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
25	Arabian Industries	Exact match	Alkhuwair, OmanHQ recorded Oct 22, 2026	10001+	1,330 contacts →
	Exact match “We deliver engineered solutions for the oil, gas and industrialised sectors through our manufacturing, EPC Projects, Maintenance & Turnarounds, Logistics & Rig Moving and Support…” 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 “refinery services and maintenance companies”. 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 8,807 refinery services and maintenance companies worldwide

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Refinery services and maintenance companies worldwide at a glance

As of Oct 22, 2026

12.0%Verified-email coverage

33.0Average contacts per company

11-50Median size (employees)

1.5%Largest-city concentration · Houston

Oct 22, 2026Page data refreshed

Companies by employee count

1-10

2,386

11-50

3,285

51-200

1,845

201-500

661

501-1,000

270

1,001-5,000

253

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 refinery services and maintenance companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “refinery services and maintenance companies” 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 35,025 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.

Refinery services and maintenance companies by location

47 lists · largest first

Every Refinery services and maintenance companies 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 “refinery services and maintenance companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many refinery services and maintenance companies are there worldwide?

RevenueBase identified 8,807 company matches for refinery services and maintenance companies 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?

Aesa A-Evangelista SA tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which country has the most refinery services and maintenance companies?

The United States leads with 1,061 companies, followed by Brazil (823) and India (345). Every refinery services and maintenance companies list by country and city is linked on this page.

Which city has the most refinery services and maintenance companies?

Houston leads with 129 company records, followed by Tehran (115) and Port Harcourt (101).

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 35,025 professional contacts with verified work emails tracked across these 8,807 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.