Company lists · Data refreshed November 2026

Top 25 Process plant maintenance companies worldwide

Name: Process plant maintenance companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 20,156 companies tracked

RevenueBase identified 20,156 company matches for process plant maintenance companies worldwide as of November 2026 and tracks 480,083 professional contacts across them, including 80,032 with verified work emails. Brazil is the largest market and Sao Paulo the largest hub.

This list covers company matches for process plant 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 November 6, 2026. Country and city lists for process plant 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 Nov 6, 2026 How this list was built

20,156Companies

480,083Contacts tracked

80,032Verified emails

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The 25 largest process plant maintenance companies worldwide

Ranked by team size

Top 25 of 20,156 company matches for process plant maintenance companies 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.
#	Company	RevenueBase SmartSearch	Headquarters	Employees	Contacts
1	Zachry Group	Exact match	San Antonio, TX, United StatesHQ recorded Nov 6, 2026	10001+	7,226 contacts →
	Exact match “Zachry Group is North America's pacesetter in turnkey engineering, construction, maintenance, turnaround and fabrication services to the energy, chemicals, power, manufacturing…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	Equans Belux	Exact match	Brussels, BelgiumHQ recorded Nov 6, 2026	5,001-10,000	5,429 contacts →
	Exact match “What if you could use your talent to contribute to the great challenges of tomorrow?” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	GMF Aeroasia	Exact match	Tangerang, IndonesiaHQ recorded Nov 6, 2026	5,001-10,000	5,090 contacts →
	Exact match “PT Garuda Maintenance Facility Aero Asia Tbk ("GMF","ticker code: GMFI") is a company engaged in the maintenance, repair, and overhaul of aircraft and industrial services.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	Bilfinger	Exact match	Mannheim, GermanyHQ recorded Nov 6, 2026	10001+	4,349 contacts →
	Exact match “Bilfinger is an international industrial services provider with a vision to be the No.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	STORK	Exact match	Utrecht, NetherlandsHQ recorded Nov 6, 2026	10001+	4,163 contacts →
	Exact match “Stork is a global provider of integrated operations, maintenance, modification and asset integrity solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	CBSI	Exact match	Volta Redonda, BrazilHQ recorded Nov 6, 2026	10001+	4,135 contacts →
	Exact match “Somos a CBSI!” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	UTC Engenharia	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	10001+	3,894 contacts →
	Exact match “The Company operates in sundry markets, taking the lead in such sectors as oil & gas production and processing, petrochemicals, power generation, steel production, paper & pulp…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Infotec Brasil	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 6, 2026	1,001-5,000	3,671 contacts →
	Exact match “Impulsionamos a eficiência em operações críticas de engenharia, manutenção e logística principalmente no setores de Óleo e Gás, Mineração, Siderurgia, Energia e Infraestrutura no…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	Team, INC	Exact match	Sugar Land, TX, United StatesHQ recorded Nov 6, 2026	5,001-10,000	3,606 contacts →
	Exact match Recorded description not available. Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
10	Ortec Group	Exact match	Aix-en-provence, FranceHQ recorded Nov 6, 2026	10001+	3,602 contacts →
	Exact match “En conjuguant depuis sa création audace et rigueur, le groupe Ortec est devenu aujourd’hui un des leaders des services à l’industrie, l’énergie et l’environnement.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Altrad	Exact match	Montpellier, FranceHQ recorded Nov 6, 2026	10001+	3,588 contacts →
	Exact match “ALTRAD AT A GLANCE Altrad is a world leader in the provision of industrial services, generating high-added value solutions principally for the Energy, Power Generation, Oil & Gas…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Engeman	Exact match	Recife, BrazilHQ recorded Nov 6, 2026	5,001-10,000	3,210 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 · Nov 6, 2026 · View company records in RevenueBase
13	Triumph	Exact match	Denver, CO, United StatesHQ recorded Nov 6, 2026	5,001-10,000	3,182 contacts →
	Exact match “TRIUMPH designs, engineers, manufactures, repairs and overhauls a broad portfolio of aviation and industrial components, accessories, subassemblies, systems.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Expertise	Exact match	Al Jubail, Saudi ArabiaHQ recorded Nov 6, 2026	10001+	3,127 contacts →
	Exact match “Established in 2008 and headquartered in Al Jubail with operational offices across the kingdom, Expertise Company Ltd.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Estrutural	Exact match	Porto Alegre, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,955 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 · Nov 6, 2026 · View company records in RevenueBase
16	Kaefer	Exact match	Bremen, GermanyHQ recorded Nov 6, 2026	10001+	2,916 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 · Nov 6, 2026 · View company records in RevenueBase
17	Brand Energy & Infrastructure Services	Exact match	Judet, United KingdomHQ recorded Nov 6, 2026	10001+	2,842 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 · Nov 6, 2026 · View company records in RevenueBase
18	Grupo Enesa - Main Page	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,835 contacts →
	Exact match “ENESA Engenharia is a company based on reliability, commitment, ethical standards and important knowledge in constructive engineering solutions, becoming a reference in…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Grupo NPE	Exact match	Sao Paulo, BrazilHQ recorded Nov 6, 2026	5,001-10,000	2,675 contacts →
	Exact match “O Grupo NPE oferece serviços de manutenção industrial, montagem eletromecânica, locações de equipamentos e fabricação industrial.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Qatar Engineering & Construction Company W.L.L	Exact match	Ras Laffan Industrial City (rlic), QatarHQ recorded Nov 6, 2026	5,001-10,000	2,486 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 · Nov 6, 2026 · View company records in RevenueBase
21	Advanced Technology Services ATS	Exact match	Peoria, IL, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,329 contacts →
	Exact match “Advanced Technology Services, Inc.(ATS) is a single source for industrial maintenance, technology and parts, offering a complete solution for support, training, monitoring and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Fm2c	Exact match	Campinas, BrazilHQ recorded Nov 6, 2026	5,001-10,000	2,264 contacts →
	Exact match “A FM2C destaca-se no cenário empresarial brasileiro como uma força inovadora no setor de Serviços Industriais, Facilities e Volantes.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	Brown & Root Industrial Services, LLC	Exact match	Baton Rouge, LA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,075 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 · Nov 6, 2026 · View company records in RevenueBase
24	ELFE	Exact match	Macaé, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,045 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 · Nov 6, 2026 · View company records in RevenueBase
25	NAES	Exact match	Issaquah, DE, United StatesHQ recorded Nov 6, 2026	1,001-5,000	2,037 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 · Nov 6, 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 “process plant 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 20,156 process plant maintenance companies worldwide

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Process plant maintenance companies worldwide at a glance

As of Nov 6, 2026

16.7%Verified-email coverage

23.8Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

7,257

11-50

7,683

51-200

3,288

201-500

957

501-1,000

316

1,001-5,000

311

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 process plant maintenance companies are linked below.
What qualifies: Company records worldwide whose business descriptions match “process plant 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 80,032 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.

Process plant maintenance companies by location

66 lists · largest first

Every Process plant 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 “process plant maintenance companies”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many process plant maintenance companies are there worldwide?

RevenueBase identified 20,156 company matches for process plant maintenance companies 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?

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

Which country has the most process plant maintenance companies?

Brazil leads with 2,561 companies, followed by the United States (2,497) and Italy (1,068). Every process plant maintenance companies list by country and city is linked on this page.

Which city has the most process plant maintenance companies?

Sao Paulo leads with 227 company records, followed by Dubai (195) and Lima (114).

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 80,032 professional contacts with verified work emails tracked across these 20,156 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.