Company lists · Data refreshed November 2026

Top 25 Refinery electrical contractors worldwide

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

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 27,402 companies tracked

RevenueBase identified 27,402 company matches for refinery electrical contractors worldwide as of November 2026 and tracks 469,380 professional contacts across them, including 101,681 with verified work emails. The United States is the largest market and Sao Paulo the largest hub.

This list covers company matches for refinery electrical contractors 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 refinery electrical contractors 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

27,402Companies

469,380Contacts tracked

101,681Verified emails

Explore this list → Free signup · no credit card · 500 free credits

The 25 largest refinery electrical contractors worldwide

Ranked by team size

Top 25 of 27,402 company matches for refinery electrical contractors 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	Tecnicas Reunidas	Exact match	Madrid, SpainHQ recorded Nov 6, 2026	10001+	11,748 contacts →
	Exact match “TR is an international general contractor engaged in the engineering and construction of industrial facilities in the fields of-Oil & Gas -Refining & Petrochemical -Power…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
2	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
3	ENPPI	Exact match	Nasr City 1, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,542 contacts →
	Exact match “Enppi is globally recognized as a major engineering, EPC main contractor, and management contractor, with decades of experience in onshore and offshore projects in the oil and…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	MMR Group	Exact match	Baton Rouge, LA, United StatesHQ recorded Nov 6, 2026	10001+	3,529 contacts →
	Exact match “At MMR we believe that no matter how much you achieve, you should never forget where you came from.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
5	Performance Contractors	Exact match	Baton Rouge, NC, United StatesHQ recorded Nov 6, 2026	1,001-5,000	3,119 contacts →
	Exact match “We began as a merit shop general industrial contractor back in 1979.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	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
7	IES Holdings	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	5,001-10,000	2,710 contacts →
	Exact match “IES Holdings, Inc.(formerly known as Integrated Electrical Services, Inc.) provides electrical contracting services to commercial, industrial, and residential customers in the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	Jones Engineering	Exact match	Dublin 4, IrelandHQ recorded Nov 6, 2026	1,001-5,000	2,643 contacts →
	Exact match “Jones Engineering is a multi-disciplined engineering contracting company, offering the complete range of engineering and building services installations.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
9	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
10	Montcalm Montagens Industriais	Exact match	São Paulo, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,431 contacts →
	Exact match “Fundada em 1971, a Montcalm tem como missão, oferecer soluções de engenharia construtiva para implantação, ampliação e manutenção de indústrias de processos, sempre com o…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
11	Special Technical Services L.L.C., Oman STS	Exact match	Muscat, OmanHQ recorded Nov 6, 2026	10001+	2,188 contacts →
	Exact match “STS Group, headquartered in The Sultanate of Oman, is a leading multidisciplinary contracting group specializing in Construction, Fabrication and Maintenance services for the…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	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
13	Araujo Abreu Engenharia	Exact match	Rio De Janeiro, BrazilHQ recorded Nov 6, 2026	1,001-5,000	2,017 contacts →
	Exact match “A Araujo Abreu foi fundada em 1922.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
14	Quanta Services, INC	Exact match	Houston, TX, United StatesHQ recorded Nov 6, 2026	10001+	2,000 contacts →
	Exact match “Quanta Services (NYSE: PWR) is the leading specialty contractor with the largest and highly trained skilled workforce in North America, providing fully integrated solutions for…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
15	Groupe Ponticelli Frères	Exact match	FranceHQ recorded Nov 6, 2026	5,001-10,000	1,953 contacts →
	Exact match “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…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Engelmig Energia	Exact match	Belo Horizonte, BrazilHQ recorded Nov 6, 2026	5,001-10,000	1,929 contacts →
	Exact match “A Engelmig foi fundada em 1985 com o objetivo de prestar serviços de engenharia em redes de distribuição de energia elétrica.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	Yates Construction	Exact match	Philadelphia, MS, United StatesHQ recorded Nov 6, 2026	5,001-10,000	1,902 contacts →
	Exact match “Yates Construction is part of The Yates Companies, Inc.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
18	Audubon Companies	Exact match	Houston, LA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,699 contacts →
	Exact match “Founded in 1997, Audubon Companies LLC provides EPC, consulting, fabrication, and field services to energy and industrial operators across the globe.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
19	Helix Electric	Exact match	San Diego, CA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,666 contacts →
	Exact match “Helix Electric is an award-winning electrical contractor specializing in design-build and highly complex electrical projects throughout the United States.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
20	Dragados Offshore	Exact match	11510 Puerto Real, SpainHQ recorded Nov 6, 2026	1,001-5,000	1,579 contacts →
	Exact match “Founded in 1972, Dragados Offshore S.A.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
21	Sendan International Company	Exact match	Jubail Industrial City, Saudi ArabiaHQ recorded Nov 6, 2026	1,001-5,000	1,573 contacts →
	Exact match “Founded in 1994, Sendan has rapidly grown from a modest contractor to a reputable General Contractor for Plant Construction and Maintenance.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
22	Kirby Group Engineering	Exact match	Limerick, IrelandHQ recorded Nov 6, 2026	1,001-5,000	1,563 contacts →
	Exact match “Founded in 1964, Kirby is a leading Mechanical and Electrical engineering contractor with operations in Ireland, the UK, mainland Europe and South Africa.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
23	ISC Constructors, L.L.C	Exact match	Baton Rouge, LA, United StatesHQ recorded Nov 6, 2026	1,001-5,000	1,491 contacts →
	Exact match “ISC is an industrial engineering and construction company specializing in comprehensive electrical, instrumentation, and controls solutions.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Galfar Engineering & Contracting Co. W.L.L Emirates	Exact match	Musaffah, United Arab EmiratesHQ recorded Nov 6, 2026	1,001-5,000	1,489 contacts →
	Exact match “Galfar Engineering & Contracting W.L.L Emirates is a multi-discipline Engineering and Construction Company, executing major EPC projects in Oil & Gas and other sectors including…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	Dornan	Exact match	Cork, IrelandHQ recorded Nov 6, 2026	501-1,000	1,312 contacts →
	Exact match “Dornan Engineering concentrates on a market where quality is appreciated.” 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 “refinery electrical contractors”. 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 27,402 refinery electrical contractors worldwide

See the full list, filter by size, metro and specialty, and access 101,681 tracked professional contacts with verified work emails. Direct dials are available where recorded.

Free signup · no credit card

View the full list →

Refinery electrical contractors worldwide at a glance

As of Nov 6, 2026

21.7%Verified-email coverage

17.1Average contacts per company

11-50Median size (employees)

0.6%Largest-city concentration · Sao Paulo

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

10,591

11-50

10,057

51-200

4,287

201-500

1,168

501-1,000

406

1,001-5,000

289

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 electrical contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “refinery electrical contractors” 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 101,681 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.

Refinery electrical contractors by location

94 lists · largest first

Every Refinery electrical contractors 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 electrical contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many refinery electrical contractors are there worldwide?

RevenueBase identified 27,402 company matches for refinery electrical contractors 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?

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

Which country has the most refinery electrical contractors?

The United States leads with 7,021 companies, followed by the United Kingdom (2,115) and Brazil (1,425). Every refinery electrical contractors list by country and city is linked on this page.

Which city has the most refinery electrical contractors?

Sao Paulo leads with 163 company records, followed by Houston (156) and Abu Dhabi (122).

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 101,681 professional contacts with verified work emails tracked across these 27,402 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.

Ready to reach these companies? Verified emails and direct dials for all 27,402 refinery electrical contractors worldwide. Start with a free account, no credit card.

Download this list →

Related lists

Browse the directory

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.