Company lists · Data refreshed September 2026

Top 25 Energy services companies worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 15,950 companies tracked

RevenueBase identified 15,950 energy services companies worldwide as of September 2026 and tracks 269,356 professional contacts across them, including 80,096 with verified work emails and 0 with mobile numbers. The United States is the largest market and Madrid the largest hub.

This list covers energy services companies 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 services companies 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

15,950Companies

269,356Contacts tracked

80,096Verified emails

0Mobile numbers

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The 25 largest energy services companies worldwide

Ranked by team size

Top 25 of 15,950 energy services companies worldwide, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to energy services companies: 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	Weatherford	Strong evidence	Dublin, TX, IrelandHQ checked Sep 16, 2026	10001+	28,428 contacts →
	Strong evidence “Weatherford International plc (Nasdaq: WFRD) is a leading global energy services company.” Source: RevenueBase Database · checked Sep 16, 2026
2	British GAS	Indirect evidence	Windsor, United KingdomHQ checked Sep 16, 2026	10001+	9,238 contacts →
	Indirect evidence “Taking care of things.” Source: RevenueBase Database · checked Sep 16, 2026
3	Dalkia	Indirect evidence	Saint-andré-lez-lille, FranceHQ checked Sep 16, 2026	10001+	8,427 contacts →
	Indirect evidence “Dalkia : ensemble, relevons le défi climatique!” Source: RevenueBase Database · checked Sep 16, 2026
4	Centrica	Strong evidence	Windsor, United KingdomHQ checked Sep 16, 2026	10001+	4,555 contacts →
	Strong evidence “Centrica is an international energy services and solutions company, founded on a 200-year heritage of serving customers in homes and businesses.” Source: RevenueBase Database · checked Sep 16, 2026
5	Ambit Energy	Strong evidence	Irving, TX, United StatesHQ checked Sep 16, 2026	n/a	4,150 contacts →
	Strong evidence “Ambit Energy provides electricity, natural gas and solar services in numerous markets across the United States, primarily marketed through a direct sales channel of more than…” Source: RevenueBase Database · checked Sep 16, 2026
6	Enova By Veolia	Strong evidence	Dubai, United Arab EmiratesHQ checked Sep 16, 2026	5,001-10,000	4,058 contacts →
	Strong 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
7	ČEZ	Strong evidence	Prague, Czech RepublicHQ checked Sep 16, 2026	10001+	3,800 contacts →
	Strong evidence “Skupina ČEZ je silný energetický koncern působící v řadě zemí střední a jihovýchodní Evropy a Turecku, který je centrálně řízen z České republiky.” Source: RevenueBase Database · checked Sep 16, 2026
8	Generac	Strong evidence	Waukesha, WI, United StatesHQ checked Sep 16, 2026	5,001-10,000	3,797 contacts →
	Strong evidence “Generac is the total energy solutions company powering a smarter world.” Source: RevenueBase Database · checked Sep 16, 2026
9	FTI	Strong evidence	Menasha, WI, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,741 contacts →
	Strong 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
10	Shell Energy	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	1,001-5,000	2,627 contacts →
	Strong evidence “We help businesses manage energy needs, boost efficiency, control costs and achieve decarbonisation goals for a better energy future.” Source: RevenueBase Database · checked Sep 16, 2026
11	SICIM	Strong evidence	Busseto, ItalyHQ checked Sep 16, 2026	10001+	2,404 contacts →
	Strong evidence “SICIM is a leading Worldwide EPC Contractor since 1962, offering all kinds of services related to the production, treatment and transportation of traditional energy sources and…” Source: RevenueBase Database · checked Sep 16, 2026
12	Clearesult	Strong evidence	Austin, TX, United StatesHQ checked Sep 16, 2026	1,001-5,000	2,121 contacts →
	Strong evidence “CLEAResult is the largest provider of energy efficiency, energy transition and energy sustainability services in North America.” Source: RevenueBase Database · checked Sep 16, 2026
13	IGS Energy	Strong evidence	Dublin, OH, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,388 contacts →
	Strong evidence “IGS Energy has been a trusted energy advisor since 1989, growing into one of the nation’s top energy retailers.” Source: RevenueBase Database · checked Sep 16, 2026
14	Ameresco	Strong evidence	Framingham, MA, United StatesHQ checked Sep 16, 2026	1,001-5,000	1,383 contacts →
	Strong evidence “Ameresco, Inc.(NYSE:AMRC) is a leading energy infrastructure solutions provider dedicated to helping customers reduce costs, enhance resilience, and decarbonize to net zero in the…” Source: RevenueBase Database · checked Sep 16, 2026
15	PGS	Strong evidence	Oslo, NorwayHQ checked Sep 16, 2026	1,001-5,000	1,310 contacts →
	Strong evidence “PGS and TGS have merged to form a pioneering data and services company, serving customers across the energy value chain and establishing a strategic partner for energy companies.” Source: RevenueBase Database · checked Sep 16, 2026
16	CGE S.A	Strong evidence	Santiago, ChileHQ checked Sep 16, 2026	5,001-10,000	1,302 contacts →
	Strong evidence “El Grupo CGE es un holding de empresas de energía, que concentra su actividad principalmente en los sectores de electricidad, gas y servicios con la misión de mejorar la calidad…” Source: RevenueBase Database · checked Sep 16, 2026
17	Hunting	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	1,001-5,000	1,211 contacts →
	Strong evidence “HUNTING is an energy services provider to the world's leading national and international oil and gas companies, manufacturing and distributing products that enable the extraction…” Source: RevenueBase Database · checked Sep 16, 2026
18	MVM	Strong evidence	Budapest, HungaryHQ checked Sep 16, 2026	10001+	1,176 contacts →
	Strong evidence “Az MVM Csoport meghatározó szereplője a magyar energiarendszernek, sikeres és versenyképes tevékenységével fontos szerepet vállal az ország energiastratégiai céljainak…” Source: RevenueBase Database · checked Sep 16, 2026
19	TGS	Strong evidence	Comuna 1, ArgentinaHQ checked Sep 16, 2026	1,001-5,000	1,159 contacts →
	Strong evidence “Somos la compañía de energía lider en la prestación de servicios integrados en la industria Oil & Gas Nuestros servicios y soluciones permiten integran toda la cadena de valor del…” Source: RevenueBase Database · checked Sep 16, 2026
20	GK	Indirect evidence	Oslo, NorwayHQ checked Sep 16, 2026	1,001-5,000	1,150 contacts →
	Indirect evidence “GK er en ledende teknisk entreprenør og servicepartner.” Source: RevenueBase Database · checked Sep 16, 2026
21	EVN	Strong evidence	Maria Enzersdorf, AustriaHQ checked Sep 16, 2026	5,001-10,000	1,125 contacts →
	Strong evidence “Wir sind ein börsennotiertes Energie- und Umweltdienstleistungsunternehmen mit Sitz in Niederösterreich.” Source: RevenueBase Database · checked Sep 16, 2026
22	Dalkia UK	Strong evidence	London, United KingdomHQ checked Sep 16, 2026	5,001-10,000	1,064 contacts →
	Strong evidence “Together, we’re delivering technical solutions for a better society and an Electric Britain Dalkia is one of the UK’s leading technical and energy services providers at the…” Source: RevenueBase Database · checked Sep 16, 2026
23	E.On Deutschland	Strong evidence	Munich, GermanyHQ checked Sep 16, 2026	5,001-10,000	1,026 contacts →
	Strong evidence “Die E.ON Energie Deutschland GmbH ist ein bundesweit führendes Energieunternehmen und Dachgesellschaft des E.ON Vertriebs in Deutschland.” Source: RevenueBase Database · checked Sep 16, 2026
24	Techem Energy Services Gmbh	Strong evidence	Eschborn, GermanyHQ checked Sep 16, 2026	1,001-5,000	1,021 contacts →
	Strong evidence “Techem is a leading global energy service provider for the real estate sector and private homeowners.” Source: RevenueBase Database · checked Sep 16, 2026
25	World Kinect	Strong evidence	Miami, FL, United StatesHQ checked Sep 16, 2026	1,001-5,000	998 contacts →
	Strong evidence “Headquartered in Miami, Florida, World Kinect Corporation (NYSE: WKC) is a leading global energy management company, offering a broad suite of solutions across the energy product…” 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 services companies. 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 services companies.
Partial evidence: Its own public description names part of energy services companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name energy services companies. 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 15,950 energy services companies worldwide

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Energy services companies worldwide at a glance

As of Sep 16, 2026

29.7%Verified-email coverage

16.9Average contacts per company

1-10Median size (employees)

1.2%Largest-city concentration · Madrid

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

8,359

11-50

5,459

51-200

1,496

201-500

307

501-1,000

1,001-5,000

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 services companies, 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: 43 countries, largest first: the United States, Italy, Spain, Brazil, the United Kingdom, Germany, France, India, Australia, Canada and 33 more. Country and city lists for energy services companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “energy services companies”. 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 services companies), 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 services companies, 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, 80,096 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 services companies by location

68 lists · largest first

Every Energy services 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 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 services companies, 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 services companies are there worldwide?

RevenueBase identified 15,950 energy services companies 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?

Weatherford, headquartered in Houston, tops this list with the largest team on record.

Which country has the most energy services companies?

The United States leads with 3,247 companies, followed by Italy (1,305) and Spain (1,221). Every energy services companies list by country and city is linked on this page.

Which city has the most energy services companies?

Madrid leads with 196 headquartered companies, followed by London (150) and Houston (138).

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 80,096 verified decision-maker contacts tracked across these 15,950 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.