Company lists · Data refreshed November 2026

Top 25 Petroleum refinery contractors worldwide

Name: Petroleum refinery contractors worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Nov 6, 2026 9,490 companies tracked

RevenueBase identified 9,490 company matches for petroleum refinery contractors worldwide as of November 2026 and tracks 532,889 professional contacts across them, including 76,642 with verified work emails. The United States is the largest market and Tehran the largest hub.

This list covers company matches for petroleum refinery 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 petroleum refinery 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

9,490Companies

532,889Contacts tracked

76,642Verified emails

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The 25 largest petroleum refinery contractors worldwide

Ranked by team size

Top 25 of 9,490 company matches for petroleum refinery 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	Turner Industries	Exact match	Baton Rouge, LA, United StatesHQ recorded Nov 6, 2026	10001+	8,559 contacts →
	Exact match “Turner Industries provides a single solution in heavy industrial construction, maintenance, turnaround, pipe and module fabrication, equipment, rigging and specialized…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
3	Samsung E&a	Exact match	Gangdong-gu, South KoreaHQ recorded Nov 6, 2026	5,001-10,000	7,517 contacts →
	Exact match “SAMSUNG E&A is one of the world’s leading engineering, procurement, construction and project management (EPC & PM) companies.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
4	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
5	Monadelphous	Exact match	Perth, AustraliaHQ recorded Nov 6, 2026	5,001-10,000	5,553 contacts →
	Exact match “Monadelphous is a leading Australian ASX-200 engineering group providing construction, maintenance and industrial services to the resources, energy and infrastructure sectors.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
6	Bonatti	Exact match	Parma, United StatesHQ recorded Nov 6, 2026	5,001-10,000	5,460 contacts →
	Exact match “Bonatti is an International Contractor providing services to energy industry with over 75 years of experience.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
7	Aesa A-Evangelista SA	Exact match	Canning, IndiaHQ recorded Nov 6, 2026	5,001-10,000	5,428 contacts →
	Exact match “Since 1948 we specialize in projects for the energy industry.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
8	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
9	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
10	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
11	S&b	Exact match	Houston, LA, United StatesHQ recorded Nov 6, 2026	5,001-10,000	3,819 contacts →
	Exact match “S&B is an engineer and constructor that designs and builds some of the largest and most complex industrial facilities in the world.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
12	Nbtc Group	Exact match	Shuaiba Industrial, KuwaitHQ recorded Nov 6, 2026	10001+	3,553 contacts →
	Exact match “Being established in 1977, NBTC had flourished its self as a leading EPC contracting company through a combination of highly empowered attributes via entrepreneurial leadership…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
13	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
14	Saudi Aramco Total Refining And Petrochemical Company Satorp	Exact match	Jubail, Saudi ArabiaHQ recorded Nov 6, 2026	1,001-5,000	3,441 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 · Nov 6, 2026 · View company records in RevenueBase
15	Hpcl-Mittal Energy Limited	Exact match	Noida, IndiaHQ recorded Nov 6, 2026	1,001-5,000	3,431 contacts →
	Exact match “HPCL-Mittal Energy Limited (HMEL) is a joint venture between Hindustan Petroleum Corporation Limited (HPCL) and Mittal Energy Investment Pte Ltd, Singapore, a Lakshmi N Mittal…” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
16	Petro Rabigh	Exact match	Rabigh, Saudi ArabiaHQ recorded Nov 6, 2026	1,001-5,000	3,169 contacts →
	Exact match “Rabigh Refining & Petrochemical Co- Petro Rabigh - was founded as a joint venture between Saudi Aramco and Sumitomo Chemical in 2005.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
17	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
18	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
19	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
20	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
21	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
22	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
23	Tripatra	Exact match	Tangerang Selatan, IndonesiaHQ recorded Nov 6, 2026	1,001-5,000	2,290 contacts →
	Exact match “Tripatra has one of the longest service histories among engineering, procurement & construction (EPC) companies in Indonesia since 1973.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
24	Enter Engineering Group	Exact match	Tashkent, UzbekistanHQ recorded Nov 6, 2026	10001+	2,224 contacts →
	Exact match “Enter Engineering is one of the largest EPC contractors in the Uzbek market.” Recorded in the RevenueBase company graph · Nov 6, 2026 · View company records in RevenueBase
25	CTCI	Exact match	Jakarta, TaiwanHQ recorded Nov 6, 2026	5,001-10,000	2,194 contacts →
	Exact match “CTCI (TWSE: 9933, TPEx: 5209, TPEx: 6803) is a global engineering, procurement, and construction (EPC) services provider.” 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 “petroleum refinery 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 9,490 petroleum refinery contractors worldwide

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Petroleum refinery contractors worldwide at a glance

As of Nov 6, 2026

14.4%Verified-email coverage

56.2Average contacts per company

11-50Median size (employees)

2.6%Largest-city concentration · Tehran

Nov 6, 2026Page data refreshed

Companies by employee count

1-10

1,903

11-50

3,133

51-200

2,299

201-500

1,017

501-1,000

476

1,001-5,000

448

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 petroleum refinery contractors are linked below.
What qualifies: Company records worldwide whose business descriptions match “petroleum refinery 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 76,642 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.

Petroleum refinery contractors by location

94 lists · largest first

Every Petroleum refinery 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 “petroleum refinery contractors”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many petroleum refinery contractors are there worldwide?

RevenueBase identified 9,490 company matches for petroleum refinery 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 petroleum refinery contractors?

The United States leads with 1,455 companies, followed by India (599) and Brazil (456). Every petroleum refinery contractors list by country and city is linked on this page.

Which city has the most petroleum refinery contractors?

Tehran leads with 244 company records, followed by Houston (117) and Abu Dhabi (104).

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 76,642 professional contacts with verified work emails tracked across these 9,490 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.