Company lists · Data refreshed September 2026

Top 25 Energy maintenance service providers worldwide

Name: Energy maintenance service providers worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 17,707 companies tracked

RevenueBase identified 17,707 energy maintenance service providers worldwide as of September 2026 and tracks 479,414 professional contacts across them, including 100,060 with verified work emails and 0 with mobile numbers. Italy is the largest market and Sao Paulo the largest hub.

This list covers energy maintenance service providers 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 16, 2026. Country and city lists for energy maintenance service providers 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 16, 2026 86% judged on-target in blind review

17,707Companies

479,414Contacts tracked

100,060Verified emails

0Mobile numbers

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The 25 largest energy maintenance service providers worldwide

Ranked by team size

Top 25 of 17,707 energy maintenance service providers worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy maintenance service providers: 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	Worley	Partial evidence	Sydney, AustraliaHQ checked Sep 16, 2026	10001+	34,763 contacts →
	Partial evidence “Worley is a global professional services company of energy, chemicals and resources experts headquartered in Australia.” Source: RevenueBase Database · checked Sep 16, 2026
2	KENT	Indirect evidence	Dubai, United Arab EmiratesHQ checked Sep 16, 2026	10001+	7,045 contacts →
	Indirect evidence “We design, build and maintain the assets that power the world for today and make it future-ready for tomorrow.” Source: RevenueBase Database · checked Sep 16, 2026
3	REXEL	Partial evidence	Paris, FranceHQ checked Sep 16, 2026	10001+	6,399 contacts →
	Partial evidence “Rexel, worldwide expert in the multichannel professional distribution of products and services for the energy world, addresses three main markets: residential, commercial, and…” Source: RevenueBase Database · checked Sep 16, 2026
4	SPIE	Partial evidence	Cergy Pontoise Cedex, FranceHQ checked Sep 16, 2026	10001+	5,520 contacts →
	Partial evidence “As the independent European leader in multi-technical services in the areas of energy and communications, SPIE supports its customers design, build, operate and maintain…” Source: RevenueBase Database · checked Sep 16, 2026
5	Equans Belux	Indirect evidence	Brussels, BelgiumHQ checked Sep 16, 2026	5,001-10,000	5,297 contacts →
	Indirect evidence “What if you could use your talent to contribute to the great challenges of tomorrow?” Source: RevenueBase Database · checked Sep 16, 2026
6	Grupo Cobra	Indirect evidence	Madrid, SpainHQ checked Sep 16, 2026	10001+	4,478 contacts →
	Indirect evidence “Grupo Cobra es una compañía global de más de 80 años de experiencia en el sector de la ingeniería industrial aplicada y servicios especializados.” Source: RevenueBase Database · checked Sep 16, 2026
7	Caverion	Indirect evidence	Vantaa, FinlandHQ checked Sep 16, 2026	10001+	4,438 contacts →
	Indirect evidence “About Caverion Caverion is an expert for smart and sustainable built environments, enabling performance and people’s well-being.” Source: RevenueBase Database · checked Sep 16, 2026
8	STORK	Partial evidence	Utrecht, NetherlandsHQ checked Sep 16, 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 16, 2026
9	Enova By Veolia	Partial evidence	Dubai, United Arab EmiratesHQ checked Sep 16, 2026	5,001-10,000	4,058 contacts →
	Partial evidence “Enova is the regional leader in integrated energy and multi-technical services, delivering comprehensive services to its clients.” Source: RevenueBase Database · checked Sep 16, 2026
10	Fieldcore	Partial evidence	Atlanta, GA, United StatesHQ checked Sep 16, 2026	10001+	3,700 contacts →
	Partial evidence “GE Vernova is a planned, purpose-built global energy company that includes Power, Wind, and Electrification businesses and is supported by its accelerator businesses of Advanced…” Source: RevenueBase Database · checked Sep 16, 2026
11	CBSI	Indirect evidence	Volta Redonda, BrazilHQ checked Sep 16, 2026	10001+	3,658 contacts →
	Indirect evidence “Somos a CBSI!” Source: RevenueBase Database · checked Sep 16, 2026
12	Ortec Group	Indirect evidence	Aix-en-provence, FranceHQ checked Sep 16, 2026	10001+	3,436 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 16, 2026
13	Altrad	Partial evidence	Montpellier, FranceHQ checked Sep 16, 2026	10001+	3,056 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 2026
14	Expertise	Indirect evidence	Al Jubail, Saudi ArabiaHQ checked Sep 16, 2026	10001+	3,033 contacts →
	Indirect evidence “Established in 2008 and headquartered in Al Jubail with operational offices across the kingdom, Expertise Company Ltd.” Source: RevenueBase Database · checked Sep 16, 2026
15	FTI	Partial evidence	Menasha, WI, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,741 contacts →
	Partial evidence “Faith Technologies Incorporated (FTI) is a dynamic organization comprised of construction, engineering, manufacturing and renewable energy experts.” Source: RevenueBase Database · checked Sep 16, 2026
16	Enermech	Partial evidence	Aberdeen, United KingdomHQ checked Sep 16, 2026	1,001-5,000	2,640 contacts →
	Partial evidence “EnerMech delivers integrated specialist services that support critical assets across the energy and infrastructure sectors worldwide.” Source: RevenueBase Database · checked Sep 16, 2026
17	Pearce Services	Strong evidence	Paso Robles, CA, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,620 contacts →
	Strong evidence “PEARCE from CBRE is the largest national independent provider of outsourced repair, maintenance, and engineering services to critical infrastructure in the renewable energy, power…” Source: RevenueBase Database · checked Sep 16, 2026
18	Powell	Indirect evidence	Houston, TX, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,561 contacts →
	Indirect evidence “Powell is hiring- Powell is dedicated to improving people’s lives by providing reliable power distribution systems in every market we serve.” Source: RevenueBase Database · checked Sep 16, 2026
19	Grupo Enesa - Main Page	Indirect evidence	Sao Paulo, BrazilHQ checked Sep 16, 2026	1,001-5,000	2,458 contacts →
	Indirect evidence “ENESA Engenharia is a company based on reliability, commitment, ethical standards and important knowledge in constructive engineering solutions, becoming a reference in…” Source: RevenueBase Database · checked Sep 16, 2026
20	Babcock & Wilcox	Partial evidence	Akron, OH, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,340 contacts →
	Partial evidence “Babcock & Wilcox, based in Akron, Ohio, USA is a global leader in energy and environmental technologies and services for power, renewable and industrial markets.” Source: RevenueBase Database · checked Sep 16, 2026
21	Bilfinger UK	Partial evidence	Warrington, United KingdomHQ checked Sep 16, 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 16, 2026
22	NAES	Indirect evidence	Issaquah, WA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,956 contacts →
	Indirect evidence “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.” Source: RevenueBase Database · checked Sep 16, 2026
23	ELFE	Indirect evidence	Macaé, BrazilHQ checked Sep 16, 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 16, 2026
24	Rotary Engineering	Partial evidence	SingaporeHQ checked Sep 16, 2026	5,001-10,000	1,841 contacts →
	Partial evidence “Founded 1972 in Singapore, Rotary Engineering is your Strategic Energy Partner providing Integrated Infrastructure Solutions with a sustainability focus.” Source: RevenueBase Database · checked Sep 16, 2026
25	Groupe Ponticelli Frères	Partial evidence	FranceHQ checked Sep 16, 2026	5,001-10,000	1,829 contacts →
	Partial evidence “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…” Source: RevenueBase Database · checked Sep 16, 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: energy maintenance service providers. 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 energy maintenance service providers.
Partial evidence: Its own public description names part of energy maintenance service providers, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy maintenance service providers. 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 17,707 energy maintenance service providers worldwide

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Energy maintenance service providers worldwide at a glance

As of Sep 16, 2026

20.9%Verified-email coverage

27.1Average contacts per company

11-50Median size (employees)

1.1%Largest-city concentration · Sao Paulo

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

6,681

11-50

7,038

51-200

2,480

201-500

718

501-1,000

254

1,001-5,000

234

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 energy maintenance service providers, 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: 48 countries, largest first: Italy, Brazil, the United States, France, Spain, the United Kingdom, Germany, India, Türkiye, Mexico and 38 more. Country and city lists for energy maintenance service providers are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “energy maintenance service providers”. 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 energy maintenance service providers), 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 energy maintenance service providers, 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, 100,060 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 16, 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.

Energy maintenance service providers by location

54 lists · largest first

Every Energy maintenance service providers 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 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 energy maintenance service providers, 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 energy maintenance service providers are there worldwide?

RevenueBase identified 17,707 energy maintenance service providers 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?

Worley, headquartered in Sydney, tops this list with the largest team on record.

Which country has the most energy maintenance service providers?

Italy leads with 2,090 companies, followed by Brazil (1,807) and the United States (1,488). Every energy maintenance service providers list by country and city is linked on this page.

Which city has the most energy maintenance service providers?

Sao Paulo leads with 186 headquartered companies, followed by Rome (113) and Lima (109).

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 100,060 verified decision-maker contacts tracked across these 17,707 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 16, 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.